[1]张兴昌,卢宗凡.坡地土壤水分动态及耗水规律研究[J].水土保持研究,1996,3(02):46-56.
　Zhang Xingchang,Lu Zongfan.Study on Soil Moisture Dynamic and Water-Consuming Law in Slop-Land[J].Research of Soil and Water Conservation,1996,3(02):46-56.
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坡地土壤水分动态及耗水规律研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 3 期数: 1996年02期 页码: 46-56 栏目: 出版日期: 1900-01-01
Title:
Study on Soil Moisture Dynamic and Water-Consuming Law in Slop-Land
作者:
张兴昌, 卢宗凡
中国科学院、水利部水土保持研究所 陕西杨陵 712100
Author(s):
Zhang Xingchang, Lu Zongfan
Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resourcer, Yangling, Shaanxi, 712100
关键词:
作物; 人工牧草; 耕作措施; 土壤水分动态; 耗水规律
Keywords:
crop; artificial pasture; tillage measure; dynamic of soil water; water-consuming law
摘要:
8年长期坡耕地土壤水分研究表明：裸地2m土层水分季节性变化呈倒S型；40～100cm内土层水分对作物供水极为重要；在降水量为500mm左右的黄土丘陵沟壑区，降水能完全满足坡耕地作物生长发育；在降雨因素不成为限制作物生长发育主要因素时，水平沟耕作可以有效地控制地表蒸发，降低作物耗水量；人工草地耗水强度趋势为：沙打旺>草木樨>紫花苜蓿>红豆草>柠条（二年生）；3年生人工草地主要利用50～200cm土层水分，8年生人工草地利用150～400cm土层水分，且8年生人工草地土壤水分恢复维艰。
Abstract:
The moisture research with 8 years long-term experiments in slop-land shows: the moisture seasonal dynamic change of 0-200cm layer appears the S type; the 40-100cm layer moisture is very important to supplying water for crops; in loess hilly and gully region with about 500mm rainfall, rainfall meets the demands of crops completely; while rainfall is not a factor-limied for crop growth, the contour-level tillage controls soil water evaporation and decreases crop consuming water; the water-consuming tendency sequence of artificial grassland is as follows;Astrasalus adsurgens, Melilotus albus, Medicago satvia, Caragana korshimskii Onobrychis voiciaefolia; 3-year growth artificial grass mainly uses 50-200cm layer water, 8-year growth artificial grassland mainly uses 150-400cm layer water and its recoves is extremely difficult.

参考文献/References:

[1] 卢宗凡, 绦兴昌.黄土高原原人工草地的土壤水分动态及水土保持效益.干旱区资源与环境, 1995(1)
[2] 卢宗凡, 张文军等.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, (1)
[3] 张兴昌, 卢宗凡等.农作物水土保持效益的数值化综合评价.水土保持学报, 1993, (2)
[4] 张兴昌, 卢宗凡.陕北黄土丘陵区川旱地不同耕作法的土壤水分效应.水土保持通报.1994(1)
[5] 张兴昌, 卢宗凡.坡耕地水平沟耕作的土壤水分动态及增产机理研究.水土保持学报, 1993(3)
[6] 卢宗凡, 苏敏等.地膜玉米对土壤水分利用的试验研究.水土保持通报, 1990(6)
[7] 卢宗凡.水土保持农业增产体系.见:黄土丘陵沟壑区水土保持型生态农业研究(上册).杨凌:天则出版社, 1990

备注/Memo

收稿日期:1995-11-10;改回日期:。

更新日期/Last Update: 1900-01-01