| 黄土高原半干旱区农田水分系统关系特征的初步研究 |
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| 引用本文： | 柳艳香,窦学诚.黄土高原半干旱区农田水分系统关系特征的初步研究[J].甘肃农业大学学报,1991,26(2):168-174. |
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| 作者姓名： | 柳艳香 窦学诚 |
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| 作者单位： | 中国科学院兰州高原大气物理研究所，甘肃农业大学农学系，甘肃农业大学农学系 |
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| 摘 要： | 本文结合雨养农业地区实际,定义了农田水分系统,并区分了农田水分的简单循环和完全循环。在此基础上,以定西为试点,分析和研究了黄土高原半干旱区农田水分系统基本关系的特征,阐明了土壤水分运动若干特征的决定机制。
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| 关 键 词： | 农田水分系统 雨养农业 潜在蒸发力 黄土高原 水分循环 |
The Farmland Water System in Loess Plateau Semi-arid Area |
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| Liu Yanxiang.The Farmland Water System in Loess Plateau Semi-arid Area[J].Journal of Gansu Agricultural University,1991,26(2):168-174. |
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| Authors: | Liu Yanxiang |
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| Abstract: | A concept of farmland water system(FWS) was defined in order to study water relation in rain-fed area. The authors considered that the distribution of atmospheric precipitation and potential evaporative power was a part of FWS. Two ways of water cycling, the simple cycling and the complete cycling were differentiated in FWS. On the basis of FWS concept, the characteristics of water relation among parts of FWS in Loess Plateau Semi-arid area was demonstrated |
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| Keywords: | farmland water system rain-fed area potential evaporative power loess plateau water cycling |
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