Liu Mei,Fan Xingke.SOIL WATER AND THE DISPOSITION FOR MEASURES OF SOIL AND WATER CONSERVATION IN LOESS HILLY REGION[J].Research of Soil and Water Conservation,1992,(02):50-54.
黄土丘陵区水土保持措施配置与土壤水分的关系
- Title:
- SOIL WATER AND THE DISPOSITION FOR MEASURES OF SOIL AND WATER CONSERVATION IN LOESS HILLY REGION
- 摘要:
- 土壤水分与水土保持措施配置间存在密切关系，从空间结构看，地形起伏引起降水再分配，而工程措施可使降水形成有益的再分配，由此产生土壤水分的微域分异。这种分异制约影响着生物措施的空间配置；从时间过程看，为防止某些植物过度的水分消耗而致土壤干燥化，需采取循环轮作配置。在黄土丘陵区要求林草与农作物地在轮作周期内的总耗水量与有效雨量（降雨量与径流深之差）持平。
- Abstract:
- There is a close relationship between soil water and the disposition for measures of soil and water conservation.In space structure, undulate terrain results in the rain redistribution and the mechanical measures make the redis-tribution be useful so soil water differences in a micro-region take place.The differences restrict and affect the space disposition of the biological measures.From time angle, the rotations of grasses, forests and crops should be taken so as to prevent the soil from drying which results from the excessive water consumption of some plants.It is necessery that the total consumptive use of water in the rotation period is equal to the total effective precipitation (pre-cipitation minus runoff depth) in the loess hilly region.
参考文献/References:
1 杨文治等.黄土丘陵区土壤水分资源及其利用研究.黄土丘陵区水土保持型生态农业研究.1990年,P63
2 蒋定生等.试论黄土高原丘陵沟壑区水土保持措施优化配置与效益.黄土丘陵区水土保持型生态农业研究.天则出版社,1990年P88~89,P97~99
3 刘梅,蒋定生等.不同坡面位置土壤水分差异规律分析.水土保持通报,1990年第2期,P91~93
4 杨文治等.黄土丘陵区人工林草地的土壤水分生态环境.中国科学院西北水土保持研究所集刊,1985年第2集,P18~28
5 韩仕峰.立体利用土壤水分的生物结构的探讨.水土保持学报,1988年第4期,P49~50
6 卢宗凡等.干旱坡地草灌带状间作土壤水分变化的数学模型.水土保持学报,1988年第4期,P56~59
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备注/Memo
收稿日期:1992-5-30