ISWC OpenIR  > 水保所知识产出(1956---)
黄河中游皇甫川流域产沙性降雨及其对径输的影响
毕彩霞
学位类型硕士
导师穆兴民
2013-05
学位授予单位中国科学院研究生院
学位授予地点北京
关键词流域产沙 性降雨 径输流域产沙 性降雨 径输 皇甫川 流域
摘要

近年来, 黄河中游径流泥沙呈急剧减少趋势近年来, 黄河中游径流泥沙呈急剧减少趋势皇甫川是黄河中游多沙粗区 的主要支流之一 。皇甫水文站控制面积占黄河流域三门峡以上集的 0.46% ,而 1950 ~2005 年均输入黄河的泥沙占 到三门峡以上总输沙量的 4.1% 。 影响 流域产沙 的主要因素为气候条件 (降雨因素 )和下垫面状况。 单就降 雨因素而 言,并不是所有的 侵蚀性降雨所引起的 侵蚀 产物 都会立即 进入河流 成为河流泥 沙。因此 沙。因此 ,本文提出 流域产沙性降雨 的概念, 确定了皇甫川流域产沙性降雨量 标准,并分析了流域产沙性降雨量对径、输的影响。主要研究结果如下: 标准,并分析了流域产沙性降雨量对径、输的影响。主要研究结果如下: 标准,并分析了流域产沙性降雨量对径、输的影响。主要研究结果如下: 标准,并分析了流域产沙性降雨量对径、输的影响。主要研究结果如下:
(1) 分析了流域径及输沙特性。 分析了流域径及输沙特性。 1954 -2010 年皇甫水文站径流量、输沙呈 年皇甫水文站径流量、输沙呈 年皇甫水文站径流量、输沙呈 明显下降趋势, 年际变化 大,年内分配集中在 大,年内分配集中在 6~9 月。 径流量、输沙均在 径流量、输沙均在 径流量、输沙均在 1979 年和 1997 年发生突变。
(2) 初步 提出流域产沙性降雨的概念并确定皇甫川日量 提出流域产沙性降雨的概念并确定皇甫川日量 标准为 12.9mm ;1954~2010 年流域 产沙性降雨量、日数没有减少趋 势, 年际变化较大, 6~9 月汛期产沙性降雨量占全年 91.9% 。
(3) 流域产沙性降雨量 对径流 和输沙减少的贡献率明显 减弱 。表现为 1980 ~1997 年产沙性降雨量对径流和输的影响分别为 73.5% 和 56.1% , 1998 ~2010 年分别为 31.7% 和 23.9% ,
(4)6~9 (4)6~9 月各流域产沙性降雨量和同期径、输均呈显著的正相 月各流域产沙性降雨量和同期径、输均呈显著的正相 月各流域产沙性降雨量和同期径、输均呈显著的正相 关系; 6月、 7月、 8月对全年径流量、输沙都有很大影响并且 月对全年径流量、输沙都有很大影响并且 各月 前期降 雨对其后面几个月的径流、输沙 也产生很大程度的影响,尤其是 7、8两个 月降 雨与后期径流 及输沙 呈显著正相关 。
(5) 通过对各阶段及典型年的 通过对各阶段及典型年的 径流量、输沙和域产性降雨的 分析 指 出,流域 产沙性降雨量 不是皇甫川流域径量和输沙减少的主要原因 。
关键词 关键词 :流域产沙 性降雨;径输流域产沙 性降雨;径输;皇甫川 流域

其他摘要

Huangfuchuan is one of the main tributaries in Huangfuchuan is one of the main tributaries in Huangfuchuan is one of the main tributaries in Huangfuchuan is one of the main tributaries in Huangfuchuan is one of the main tributaries in Huangfuchuan is one of the main tributaries in Huangfuchuan is one of the main tributaries in Huangfuchuan is one of the main tributaries in Huangfuchuan is one of the main tributaries in Huangfuchuan is one of the main tributaries in Huangfuchuan is one of the main tributaries in Huangfuchuan is one of the main tributaries in Huangfuchuan is one of the main tributaries in Huangfuchuan is one of the main tributaries in abundantabundant abundant abundant sediment and coarse sediment and coarse sediment and coarse sediment and coarse sediment and coarse sediment and coarse sediment and coarse sediment and coarse sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area sediment region of the Yellow River. Huangfu hydrological station controlling area accounted for 0.46% of the catchment area Yellow River Basin , annaccounted for 0.46% of the catchment area Yellow River Basin , annaccounted for 0.46% of the catchment area Yellow River Basin , annaccounted for 0.46% of the catchment area Yellow River Basin , ann accounted for 0.46% of the catchment area Yellow River Basin , ann accounted for 0.46% of the catchment area Yellow River Basin , ann accounted for 0.46% of the catchment area Yellow River Basin , ann accounted for 0.46% of the catchment area Yellow River Basin , ann accounted for 0.46% of the catchment area Yellow River Basin , ann accounted for 0.46% of the catchment area Yellow River Basin , annaccounted for 0.46% of the catchment area Yellow River Basin , ann accounted for 0.46% of the catchment area Yellow River Basin , annaccounted for 0.46% of the catchment area Yellow River Basin , ann accounted for 0.46% of the catchment area Yellow River Basin , annaccounted for 0.46% of the catchment area Yellow River Basin , annaccounted for 0.46% of the catchment area Yellow River Basin , ann accounted for 0.46% of the catchment area Yellow River Basin , annaccounted for 0.46% of the catchment area Yellow River Basin , annaccounted for 0.46% of the catchment area Yellow River Basin , annaccounted for 0.46% of the catchment area Yellow River Basin , ann accounted for 0.46% of the catchment area Yellow River Basin , ann accounted for 0.46% of the catchment area Yellow River Basin , ann accounted for 0.46% of the catchment area Yellow River Basin , ann accounted for 0.46% of the catchment area Yellow River Basin , ann accounted for 0.46% of the catchment area Yellow River Basin , ann accounted for 0.46% of the catchment area Yellow River Basin , annaccounted for 0.46% of the catchment area Yellow River Basin , annaccounted for 0.46% of the catchment area Yellow River Basin , ann ual ual average sediment input average sediment input average sediment input average sediment input average sediment input average sediment input average sediment input into into the Yellow River the Yellow River the Yellow River the Yellow River the Yellow River the Yellow River the Yellow River from from from 1950 to 2005 accounted for l 4.1% accounted for l 4.1% accounted for l 4.1% accounted for l 4.1% accounted for l 4.1% accounted for l 4.1% of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia of the total sediement discharge in upper area from Sanmenxia . Water erosion is . Water erosion is . Water erosion is . Water erosion is . Water erosion is . Water erosion is . Water erosion is the main erosion type the main erosion type the main erosion type the main erosion type the main erosion type the main erosion type the main erosion type the main erosion type in this in this watershed watershed watershed . The main factors aff The main factors affThe main factors aff The main factors aff The main factors affThe main factors aff The main factors affThe main factors affluencing the watershed luencing the watershedluencing the watershed luencing the watershedluencing the watershed luencing the watershedluencing the watershed luencing the watershed sediment yield to sediment yield to sediment yield to sediment yield to sediment yield to sediment yield to climatic condition (rainfallclimatic condition (rainfall climatic condition (rainfall climatic condition (rainfallclimatic condition (rainfall climatic condition (rainfall climatic condition (rainfall climatic condition (rainfallclimatic condition (rainfall climatic condition (rainfallclimatic condition (rainfall ) and surface conditions (topography, soil and surface conditions (topography, soil and surface conditions (topography, soil and surface conditions (topography, soil and surface conditions (topography, soil and surface conditions (topography, soil and surface conditions (topography, soil and surface conditions (topography, soil and surface conditions (topography, soil and surface conditions (topography, soil and surface conditions (topography, soil and surface conditions (topography, soil and surface conditions (topography, soil and vegetation). and vegetation). and vegetation). and vegetation). and vegetation). ButBut not all not all not all not all the sediment caused by sediment caused by sediment caused bysediment caused by sediment caused by sediment caused bysediment caused by the erosive rainfall erosion the erosive rainfall erosion the erosive rainfall erosion the erosive rainfall erosion the erosive rainfall erosion the erosive rainfall erosion the erosive rainfall erosion the erosive rainfall erosion the erosive rainfall erosion the erosive rainfall erosion products products products will immediately enter the rivers and become river sediment will immediately enter the rivers and become river sediment will immediately enter the rivers and become river sediment will immediately enter the rivers and become river sediment will immediately enter the rivers and become river sedimentwill immediately enter the rivers and become river sedimentwill immediately enter the rivers and become river sediment will immediately enter the rivers and become river sedimentwill immediately enter the rivers and become river sediment will immediately enter the rivers and become river sediment will immediately enter the rivers and become river sediment will immediately enter the rivers and become river sedimentwill immediately enter the rivers and become river sediment will immediately enter the rivers and become river sediment will immediately enter the rivers and become river sedimentwill immediately enter the rivers and become river sedimentwill immediately enter the rivers and become river sediment will immediately enter the rivers and become river sediment will immediately enter the rivers and become river sediment will immediately enter the rivers and become river sediment . Therefore, Therefore, Therefore, Therefore, Therefore, Therefore, Therefore, Therefore, We put forward the concept of ut forward the concept of ut forward the concept of ut forward the concept of ut forward the concept of ut forward the concept of ut forward the concept of ut forward the concept of watershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfallwatershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfall , determine the standard , determine the standard , determine the standard , determine the standard , determine the standard , determine the standard , determine the standard of of watershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfallwatershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfall of of Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis Huangfuchuan Watershed, and analysis the watershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfallwatershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfall influence on runoff and sediment discharge. influence on runoff and sediment discharge. influence on runoff and sediment discharge.influence on runoff and sediment discharge. influence on runoff and sediment discharge.influence on runoff and sediment discharge. influence on runoff and sediment discharge. influence on runoff and sediment discharge. influence on runoff and sediment discharge.influence on runoff and sediment discharge. influence on runoff and sediment discharge.influence on runoff and sediment discharge. influence on runoff and sediment discharge. influence on runoff and sediment discharge. influence on runoff and sediment discharge.influence on runoff and sediment discharge.influence on runoff and sediment discharge.influence on runoff and sediment discharge. The The main find main find ings are as follows: ings are as follows: ings are as follows:ings are as follows: ings are as follows: ings are as follows:
(1) There are There are There are There are There are downward trend downward trend downward trend downward trend downward trend s and large interannual s and large interannual s and large interannual s and large interannual s and large interannual s and large interannual s and large interannual s and large interannual s and large interannual s and large interannual s and large interannual s and large interannual variability variability variability variability variability between the between the between the between the between the between the between the Runoff and unoff and unoff and the sediment of Huangfu hydrological station sediment of Huangfu hydrological station sediment of Huangfu hydrological stationsediment of Huangfu hydrological station sediment of Huangfu hydrological station sediment of Huangfu hydrological station sediment of Huangfu hydrological stationsediment of Huangfu hydrological stationsediment of Huangfu hydrological station sediment of Huangfu hydrological stationsediment of Huangfu hydrological stationsediment of Huangfu hydrological station sediment of Huangfu hydrological stationsediment of Huangfu hydrological stationsediment of Huangfu hydrological stationsediment of Huangfu hydrological station sediment of Huangfu hydrological station sediment of Huangfu hydrological station. The allocation for the year he allocation for the year he allocation for the year he allocation for the year he allocation for the year he allocation for the year he allocation for the year he allocation for the year he allocation for the year he allocation for the year he allocation for the year he allocation for the year he allocation for the year was concentrated in the June to September. According double cumulat was concentrated in the June to September. According double cumulat was concentrated in the June to September. According double cumulatwas concentrated in the June to September. According double cumulatwas concentrated in the June to September. According double cumulat was concentrated in the June to September. According double cumulat was concentrated in the June to September. According double cumulat was concentrated in the June to September. According double cumulat was concentrated in the June to September. According double cumulatwas concentrated in the June to September. According double cumulat was concentrated in the June to September. According double cumulatwas concentrated in the June to September. According double cumulatwas concentrated in the June to September. According double cumulatwas concentrated in the June to September. According double cumulat was concentrated in the June to September. According double cumulatwas concentrated in the June to September. According double cumulat was concentrated in the June to September. According double cumulat was concentrated in the June to September. According double cumulat was concentrated in the June to September. According double cumulat was concentrated in the June to September. According double cumulat was concentrated in the June to September. According double cumulat was concentrated in the June to September. According double cumulatwas concentrated in the June to September. According double cumulative curve ive curve ive curve , the runoff and runoff and runoff and runoff and the sediment sediment sediment sediment were both were both were both volume volumed in 1979 and 1997. Accordingly, the in 1979 and 1997. Accordingly, the in 1979 and 1997. Accordingly, the in 1979 and 1997. Accordingly, the in 1979 and 1997. Accordingly, the in 1979 and 1997. Accordingly, the in 1979 and 1997. Accordingly, the in 1979 and 1997. Accordingly, the in 1979 and 1997. Accordingly, the in 1979 and 1997. Accordingly, the in 1979 and 1997. Accordingly, the in 1979 and 1997. Accordingly, the process process processprocess es of es of es of runoff and runoff and runoff and sediment weresediment weresediment were sediment weresediment were sediment were divided into three stages. divided into three stages. divided into three stages. divided into three stages. divided into three stages.divided into three stages. divided into three stages.divided into three stages.divided into three stages.
(2) We dWe dWe d efinefin e te t he of he of he of the conceptconcept conceptconcept of watershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfall and and determine the determine the determine the determine the determine the watershed satershed s atershed s atershed sediment yield ediment yield ediment yield ediment yield ediment yield ediment yield daily rainfall daily rainfall daily rainfall daily rainfall daily rainfall daily rainfall daily rainfall daily rainfall standard standard 12.9mm in 12.9mm in Huangfuchuan Huangfuchuan Huangfuchuan Huangfuchuan Huangfuchuan Huangfuchuan Huangfuchuan river iver basin; Watershed asin; Watershed asin; Watershed asin; Watershed asin; Watershed asin; Watershed asin; Watershed sediment yield rainfall sediment yield rainfall sediment yield rainfallsediment yield rainfall sediment yield rainfallsediment yield rainfallsediment yield rainfallsediment yield rainfall sediment yield rainfall sediment yield rainfall and and the the the days of days of days of days of days of watershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfallwatershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfall did not have did not have did not have did not have downward trend downward trend downward trenddownward trend downward trenddownward trend s andand variability in variability in variability in variability in variability in variability in 1954~2010 . Watershed Watershed Watershed Watershed sediment yield rainfall sediment yield rainfall sediment yield rainfall sediment yield rainfall sediment yield rainfall sediment yield rainfall sediment yield rainfall sediment yield rainfall sediment yield rainfall sediment yield rainfall sediment yield rainfall in Ju ne to September throughout the ne to September throughout the ne to September throughout the ne to September throughout the ne to September throughout the ne to September throughout the ne to September throughout the ne to September throughout the ne to September throughout the year accounted for 91.9%.year accounted for 91.9%.year accounted for 91.9%.year accounted for 91.9%. year accounted for 91.9%.year accounted for 91.9%.year accounted for 91.9%. year accounted for 91.9%. year accounted for 91.9%. year accounted for 91.9%.year accounted for 91.9%.
(3) Runoff and sediment (3) Runoff and sediment (3) Runoff and sediment (3) Runoff and sediment (3) Runoff and sediment(3) Runoff and sediment (3) Runoff and sediment (3) Runoff and sediment(3) Runoff and sediment discharge dischargedischargedischarge were were were were positively correlated positively correlated positively correlated positively correlated positively correlated positively correlated positively correlated positively correlated positively correlated positively correlated positively correlated with w atershedatershed atershed atershed sediment yield sediment yield sediment yieldsediment yield sediment yieldsediment yield rainfall ainfall ainfall ainfall and number of rainy days wand number of rainy days wand number of rainy days w and number of rainy days w and number of rainy days wand number of rainy days w and number of rainy days wand number of rainy days w and number of rainy days wand number of rainy days wand number of rainy days w and number of rainy days w atershedatershed atershed atershedatershed sediment yield sediment yield sediment yieldsediment yield sediment yieldsediment yield sediment yield rainfallainfall ainfall .  Ac cordingcording cording cording to the to the to the double cumulative c double cumulative cdouble cumulative c double cumulative cdouble cumulative c double cumulative c double cumulative c urve, contributions of the urve, contributions of the urve, contributions of the urve, contributions of the urve, contributions of the urve, contributions of the urve, contributions of the urve, contributions of the watershed sediment watershed sediment watershed sediment watershed sediment watershed sediment watershed sediment watershed sediment yield rainfallyield rainfallyield rainfallyield rainfall yield rainfallyield rainfall yield rainfall to runoff and sediment were 73.5% 56.1% to runoff and sediment were 73.5% 56.1% to runoff and sediment were 73.5% 56.1% to runoff and sediment were 73.5% 56.1% to runoff and sediment were 73.5% 56.1% to runoff and sediment were 73.5% 56.1% to runoff and sediment were 73.5% 56.1% to runoff and sediment were 73.5% 56.1% to runoff and sediment were 73.5% 56.1% to runoff and sediment were 73.5% 56.1% to runoff and sediment were 73.5% 56.1% to runoff and sediment were 73.5% 56.1% to runoff and sediment were 73.5% 56.1% in the second phase the second phasethe second phase the second phase the second phase , 31.7% and 23.9% 31.7% and 23.9% 31.7% and 23.9% in the third stage respectively n the third stage respectively n the third stage respectively n the third stage respectivelyn the third stage respectively n the third stage respectivelyn the third stage respectivelyn the third stage respectively n the third stage respectively n the third stage respectivelyn the third stage respectively. Contribution rate ontribution rate ontribution rate s of of watershed watershed watershed watershed sediment yield rainfall sediment yield rainfall sediment yield rainfallsediment yield rainfall sediment yield rainfallsediment yield rainfall sediment yield rainfallsediment yield rainfall sediment yield rainfall reduc reduc ing the runoff and runoff and runoff and runoff and the he sediment sediment sediment sediment were were distinct distinct weakeningweakeningweakeningweakening weakening weakening.
(4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant (4) The runoff and sediment in June , July August showed a significant positive correlation positive correlation positive correlation positive correlation positive correlation positive correlation positive correlation . The The watershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfallwatershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfall in June, JulyJune, July June, July June, July June, July andand August August August ha d a great influence on ona great influence on ona great influence on ona great influence on a great influence on ona great influence on a great influence on a great influence on a great influence on ona great influence on a great influence on the annual runoff the annual runoff the annual runoff the annual runoffthe annual runoff and the and the and the sedim sedim entent . Antecedent Antecedent Antecedent Antecedent Antecedent Antecedent watershed watershed watershed sediment yield rainfall sediment yield rainfall sediment yield rainfallsediment yield rainfall sediment yield rainfallsediment yield rainfall sediment yield rainfallsediment yield rainfall sediment yield rainfall ha d a large impact large impactlarge impactlarge impact large impact large impactlarge impact on runoff runoff and sediment ofand sediment of and sediment of and sediment ofand sediment of months later, months later, months later, months later, months later, especially especially especially especially especially in July and August July and August July and August July and August July and August July and August July and August July and August July and August .
(5) (5) By By By analyzinganalyzing analyzinganalyzinganalyzinganalyzing analyzing the runoff runoff runoff and sediment of tand sediment of t and sediment of tand sediment of t and sediment of tand sediment of t ypical yeaypical yea ypical yeaypical yeaypical yea ypical yeaypical yeaypical year, and watershed sediment r, and watershed sediment r, and watershed sediment r, and watershed sediment r, and watershed sediment r, and watershed sediment r, and watershed sediment r, and watershed sediment r, and watershed sediment r, and watershed sediment yield rainfall ,yield rainfall ,yield rainfall ,yield rainfall , yield rainfall ,yield rainfall , yield rainfall , yield rainfall , points points out that out that out that that hat the decrease of the decrease of the decrease of the decrease of the decrease of the decrease of the decrease of the decrease of Huangfuchuan HuangfuchuanHuangfuchuanHuangfuchuan Huangfuchuan HuangfuchuanHuangfuchuan water runoff and water runoff and water runoff and water runoff and water runoff and water runoff and water runoff and water runoff and sediment discharge is not due to the watershed yield rainfallis sediment discharge is not due to the watershed yield rainfallis sediment discharge is not due to the watershed yield rainfallissediment discharge is not due to the watershed sediment yield rainfallis sediment discharge is not due to the watershed yield rainfallis sediment discharge is not due to the watershed yield rainfallis sediment discharge is not due to the watershed yield rainfallissediment discharge is not due to the watershed sediment yield rainfallissediment discharge is not due to the watershed sediment yield rainfallissediment discharge is not due to the watershed sediment yield rainfallis sediment discharge is not due to the watershed yield rainfallissediment discharge is not due to the watershed sediment yield rainfallis sediment discharge is not due to the watershed yield rainfallis sediment discharge is not due to the watershed yield rainfallis sediment discharge is not due to the watershed yield rainfallis sediment discharge is not due to the watershed yield rainfallis sediment discharge is not due to the watershed yield rainfallis sediment discharge is not due to the watershed yield rainfallissediment discharge is not due to the watershed sediment yield rainfallis sediment discharge is not due to the watershed yield rainfallis sediment discharge is not due to the watershed yield rainfallissediment discharge is not due to the watershed sediment yield rainfallis sediment discharge is not due to the watershed yield rainfallissediment discharge is not due to the watershed sediment yield rainfallis sediment discharge is not due to the watershed yield rainfallissediment discharge is not due to the watershed sediment yield rainfallis sediment discharge is not due to the watershed yield rainfallis sediment discharge is not due to the watershed yield rainfallis sediment discharge is not due to the watershed yield rainfallis most .
Key Words:Key Words:Key Words: Key Words:Key Words: Key Words:Key Words: watershed sediment yield rainfallwatershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfallwatershed sediment yield rainfall watershed sediment yield rainfall ; runoff runoff runoff; sediment sediment sedimentsediment ; Huangfuchuan Huangfuchuan Huangfuchuan Huangfuchuan Huangfuchuan Huangfuchuan Huangfuchuan river basin river basin river

语种中文
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条目标识符sbir.nwafu.edu.cn/handle/361005/8943
专题水保所知识产出(1956---)
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毕彩霞. 黄河中游皇甫川流域产沙性降雨及其对径输的影响[D]. 北京. 中国科学院研究生院,2013.
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黄河中游皇甫川流域产沙性降雨及其对径流输(2062KB)学位论文 开放获取CC BY-NC-SA请求全文
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