| 渭北旱塬区不同坡向土地利用类型对土壤性质的影响 |
| 赵妮1; 金晶炜2,3; 程光庆4; 程积民1,2,3
|
| 2018
|
发表期刊 | 水土保持学报
|
卷号 | 32期号:3页码:271-288 |
摘要 | 为了研究不同坡向土地利用类型对土壤性质的影响,以渭北旱塬区5种土地利用类型(不同坡向)为
研究对象,系统分析该区不同坡向土地利用类型剖面土壤物理、化学和生物性质的差异。结果表明:( 1
)除
土壤
pH 和土壤颗粒组成外,
5 种土地利用类型土壤含水量、总孔隙度、有机质、全氮、微生物量碳和氮含量
总体随土层加深呈下降趋势,土壤容重则相反。( 2 ) 0-30cm 土层,阳坡农用地土壤含水量、黏粒含量和
pH
最高,粉粒和全氮含量最低;人工草地砂粒和全氮含量最高,黏粒含量最低;人工林地土壤总孔隙度、土
壤有机质、微生物量碳和氮含量最高,土壤含水量、土壤容重和 pH 最低;天然草地土壤容重和粉粒含量最
高,总孔隙度和砂粒含量最低;退耕地有机质、微生物量碳和氮含量最低。阴坡农用地土壤含水量、粉粒含
量和
pH
最高,黏粒和全氮含量最低;人工草地土壤容重、黏粒和微生物量氮含量最高,土壤总孔隙度、粉
粒、砂粒和有机质含量最低;人工林地有机质含量和微生物量碳含量最高;天然草地土壤总孔隙度、砂粒和
全氮含量最高,土壤容重和 pH 最低;退耕地土壤含水量、微生物量碳和氮含量最低。( 3 ) 5种土地利用类
型中,土壤容重、细黏粒、粗黏粒、细粉粒、粗砂粒、土壤 pH 和有机质(退耕地除外)表现为阳坡 > 阴坡,土壤
含水量(退耕地和农用地除外)、总孔隙度、粗粉粒、细砂粒、土壤质地粗化度、全氮(人工草地除外)、土壤微
生物量碳和氮含量则为阴坡 > 阳坡。 |
其他摘要 | In order to explore the effects of land use types with different slope aspects on soil properties , five
land use types ( different slope aspect ) in Weibei highlands were selected to analyze the differences of soil
physical , chemical and biological properties in different land use types.The results showed that
:(
1 ) Soil wa -
ter content , soil total porosity , soil organic matter content , total nitrogen content , microbial biomass carbon
and nitrogen content decreased with the increase of soil depth , soil bulk density was the opposite except soil
pH and particle composition in different land use types. ( 2 ) In 0-30cm soil layer , on the sunny slope , soil
water content ,
clay
content and pH were the highest , while silt and total nitrogen content were the lowest in
farmland ; sand and total nitrogen content were the highest , while clay content was the lowest in artificial
grassland ; soil total porosity , soil organic matter content , microbial biomass carbon and nitrogen content
were the highest , while soil water content , soil bulk density and pH were the lowest in artificial forest ; soil
bulk density and silt content were the highest
, while soil total porosity
and sand content were the lowest in
natural grassland ; soil organic matter content , microbial biomass carbon and nitrogen content were the low -
est in abandoned farmland.On the shady slope , soil water content
, silt content and pH were the highest ,while clay content and total nitrogen content were the lowest in farmland
; soil bulk density ,
clay
content and
microbial biomass nitrogen content were the highest , while soil total porosity , silt , sand and soil organic
matter content were the lowest in artificial grassland ; soil organic matter content and microbial biomass car -
bon content were the highest in artificial forest ; soil total porosity , sand and total nitrogen content were the
highest , while soil bulk density and pH were the lowest in natural grassland ; soil water content , microbial
biomass carbon and nitrogen content were the lowest in abandoned farmland. ( 3 ) Among the 5types of land
use , soil bulk density , fine clay , coarse clay , fine silt , coarse sand , soil pH , soil organic matter content ( ex -
cept abandoned farmland ) of sunny slope were higher than those of shady slope.Soil water content ( except
abandoned farmland and farmland ), soil total porosity , the coarse silt , fine sand , soil texture coarsening de -
grees , soil total nitrogen content (
except artificial grassland ), soil microbial biomass carbon and nitrogen
content of shady slope were higher than those of sunny
slope. |
关键词 | 渭北旱塬
坡向
土地利用类型
土壤性质
|
收录类别 | 中文核心期刊要目总览
|
语种 | 中文
|
文献类型 | 期刊论文
|
条目标识符 | sbir.nwafu.edu.cn/handle/361005/10364
|
专题 | 水保所知识产出(1956---)
|
作者单位 | 1.西北农林科技大学动物科技学院 2.中国科学院水利部水土保持研究所 3.世纪龙信息网络有限责任公司 4.西北农林科技大学水土保持研究所
|
推荐引用方式 GB/T 7714 |
赵妮,金晶炜,程光庆,等. 渭北旱塬区不同坡向土地利用类型对土壤性质的影响[J]. 水土保持学报,2018,32(3):271-288.
|
APA |
赵妮,金晶炜,程光庆,&程积民.(2018).渭北旱塬区不同坡向土地利用类型对土壤性质的影响.水土保持学报,32(3),271-288.
|
MLA |
赵妮,et al."渭北旱塬区不同坡向土地利用类型对土壤性质的影响".水土保持学报 32.3(2018):271-288.
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文件名:
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渭北旱塬区不同坡向土地利用类型对土壤性质的影响_赵妮.pdf
|
格式:
|
Adobe PDF
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