| 基于称重法对影响蒸发蒸腾量的主要气象因子研究分析 |
| 苏彦尹; 范兴科
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| 2020-05
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发表期刊 | 干旱地区农业研究
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卷号 | 38期号:3页码:40-09 |
摘要 | 通过模拟实验采用称重法测定了不同时间尺度下的蒸发皿水面蒸发量与充分灌水条件下植物蒸腾耗
水量ꎬ同时监测对应时段影响蒸发蒸腾量变化的的气象因子ꎮ 通过Pearson 相关分析法与偏相关检验对蒸发蒸腾量
与气象因子间的相关性进行了分析ꎬ同时在此基础上ꎬ对相关性较高(在α =0.01 水平上极显著相关且通过偏相关筛
选)的几个主要气象因子与水面蒸发量、植物潜在蒸发蒸腾量变化过程间的相关关系进行了多元非线性拟合ꎬ构建
了简单的潜在蒸发蒸腾量计算方程ꎬ并进行了检验ꎮ 结果显示:(1)影响水面蒸发与植物蒸腾的主要气象因子一致:
温度、太阳净辐射与相对湿度ꎻ(2)太阳净辐射与温度、湿度的变化有较高的相关性(r = 0.718ꎬr = -0.639)ꎻ(3) 利用
温度和湿度两项指标可以较好地模拟蒸发量与蒸腾量的变化过程(R2 = 0.743)ꎬ对于缺乏太阳净辐射资料的小灌区
(点)ꎬ可以利用温、湿度和作物参数构建近似的作物蒸发耗水模型ꎬ基于实时的气象资料计算对应时段作物的蒸腾
蒸发耗水量ꎬ以便快速获得作物的耗水量与需水量ꎬ实时掌握农田水分亏缺状况ꎬ进行及时补灌ꎮ |
其他摘要 | In order to construct a simple calculation model for transpiration and evaporation of farmlandꎬ
obtain the water consumption and the water demand of crops quicklyꎬ and to obtain the status of water deficit in a
timely mannerꎬ this study used a gravimetric method to measure the evaporation of water from an evaporation pan at
different time scalesꎬ and measure the transpiration water consumption of plants under the condition of sufficient ir ̄
rigationꎬ while the meteorological factors that affect transpiration in the corresponding period were monitored. The
correlation between evapotranspiration and meteorological factors was analyzed by Pearson correlation analysis meth ̄
od and partial correlation test. The correlations of volume change and several major meteorological factors with high
correlation with surface water evaporation and potential plant evapotranspiration were analyzed with multivariate
non ̄linear fitting. Thusꎬ a simple calculation equation of potential evapotranspiration was constructed and tested.
The results showed that (1) the main meteorological factors that affect water surface evaporation and plant transpi ̄
ration were temperatureꎬ net solar radiationꎬ and relative humidityꎻ (2) net solar radiation had a high correlation
with changes in temperature and humidity (r =0.718ꎬ r =-0.639)ꎻ (3) the evaporation and transpiration were well |
关键词 | 蒸散发
时间尺度
气象因子
温、湿度
非线性拟合
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语种 | 中文
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文献类型 | 期刊论文
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条目标识符 | sbir.nwafu.edu.cn/handle/361005/9452
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专题 | 水保所2018--2022届毕业生论文(学位论文、期刊论文)
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作者单位 | 1.中国科学院水利部水土保持研究所ꎬ陕西杨凌712100 2.西北农林科技大学水土保持研究所ꎬ陕西杨凌712100 3.中国科学院大学ꎬ北京100049
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推荐引用方式 GB/T 7714 |
苏彦尹,范兴科. 基于称重法对影响蒸发蒸腾量的主要气象因子研究分析[J]. 干旱地区农业研究,2020,38(3):40-09.
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APA |
苏彦尹,&范兴科.(2020).基于称重法对影响蒸发蒸腾量的主要气象因子研究分析.干旱地区农业研究,38(3),40-09.
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MLA |
苏彦尹,et al."基于称重法对影响蒸发蒸腾量的主要气象因子研究分析".干旱地区农业研究 38.3(2020):40-09.
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基于称重法对影响蒸发蒸腾量的主要气象因子研究分析_苏彦尹.pdf
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