摘要
阐明了丘岗坡地不同利用方式的降水径流及其导致的土壤侵蚀、土壤水分和土壤养分变化动态与时空分布规律,揭示了丘岗坡地水土资源保护性持续高效利用的技术原理,提出第四纪红土母质发育的红壤坡地水土协调阈值。研究结果还表明,只要治理与开发有机结合,丘岗坡地可以大面积开垦,不会造成水土流失。
Different using modes of precipitation's surface flow, the caused soil erosion, dynamic change of soil moisture and soil nutrient's and their space-time distribution have announced the technological principle to keep water and soil resources standing and high-efficient in the hillside fields, giving a corresponding value of water and soil of red soil developing from the fourth century laterite texture. The result also indicates that so long as the management and development can be combined organically, the hillside fields of mound can be cultivated by a large scale and will not cause soil erosion.
出处
《中国生态农业学报》
CAS
CSCD
2002年第3期98-101,共4页
Chinese Journal of Eco-Agriculture
基金
国家重点科技攻关专题(85-009-01-04
96-004-03-02)
中国科学院知识创新工程重要方向项目(KZCX2-SW-415)
湖南省重点科技攻关课题(97KJY2007)部分研究内容
关键词
丘岗坡地
水土资源保护
协调发展技术
红壤
Red soil, Hillock hillside fields of mound, Water and soil resources, Develop in harmony
