Su Min,Lu Zongfan,Li gouxia.Water use and Equilibrium of Main Crops in Loess Hilly and Gully Region of North Shaanxi[J].Research of Soil and Water Conservation,1996,3(02):36-45.
陕北丘陵沟壑区主要农作物水分利用与平衡
- Title:
- Water use and Equilibrium of Main Crops in Loess Hilly and Gully Region of North Shaanxi
- 摘要:
- 根据陕北丘陵沟壑区自然特点，和该区农田主要农作物水分利用与平衡研究工作结果，分析总结了不同农作物在不同立地条件、不同栽培管理状况下的水分利用与平衡的规律为：在降雨正常年份的作物生育期内，2m土层土壤水分变化趋势与自然降雨同步；各作物收获后的土壤水分与播种前土壤水分几乎相等、作物耗水量与生育期降雨量几乎相等，土壤水分基本处于平衡状态；同年降雨量相同，但由于作物种类、耕作措施、立地条件不同，使作物产量、水分利用效率差异显着。并由此论述了提高当地农田作物水分利用效率，发展农业生产的有关措施。
- Abstract:
- On the basis of result of water use and equilibrium for main crops in loess hilly and gully region of north Shaanxi, analysed the water use characteristic of different crops under various management and sites.The result showed that the soil moisture in depth of 2m during crop growth period had the similar regulation with rainfall under the common year.The soil water storage had no great change after crop growth with no water deficit.The crops yield and water use efficiency were changed with crop species, farming method and sites.The approach of improve water use efficiency and yield for main crops was suggested.
参考文献/References:
[1] 中国科学院黄土高原科学考察队.中国黄土高原耕地坡度分级数据集.海洋出版社, 1990
[2] 山仑等主编.黄土高原旱地农业的理论与实践.科学出版社, 1993
[3] 中国科学院水土保持研究所主编.土地资源及生产力研究.科学技术出版社, 1991
[4] 卢宗凡等主编.黄土丘睦沟壑区水土保持型生态农业研究.天则出版社, 1990
[5] 苏敏等.黄土丘陵区不同种植方式水保效益的分析评价.水土保持通报, 1990, (4)
[6] 陶枕汾, 韩仕峰等著.中国北方早农地区水分生产潜力及开发.气象出版社, 1993
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备注/Memo
收稿日期:1995-11-10;改回日期:。