建立水土协调机制 确保农业可持续发展  

Establishment of the harmonious mechanism of water and soil to ensure the sustainable development of agriculture.

作　　者：彭廷柏[1] 黄道友[1] 陈惠萍[1] 陈焱国[1] 

机构地区：[1]中国科学院长沙农业现代化研究所,长沙410125

出　　处：《生态农业研究》1999年第1期36-39,共4页Chinese Journal of Eco-agriculture

基　　金："八五"~"九五"国家科技攻关重点项目

摘　　要：分析了我国水土资源矛盾状况及其对农业的影响,剖析了降水径流、植被与土体“富水层”的拦蓄机制、塘堰水库的调蓄机制的关系,提出了允许水土流失的阈值,建立协调水土矛盾机制、确保农业与资源环境协调持续发展的对策。The contradictions in water and soil resources and its impacts on agriculture in Chi-na are analysed, and the mechanisms of precipitation runoff, vegetation and water-enriching layers of soil in water detainment ,and the functions of reservoirs in preserving and storing wa-ter also are dissected. The threshold value of water and soil loss,the mechanism of harmonizing the contradiction in water and soil, and the countermeasure of sustainable developmental agriculture are proposed.

关 键 词：水土流失阈值 土体富水层 水土协调机制 

分 类 号：F323.2[经济管理—产业经济]