南方亚高山古梯田的水土保持机理及其保护措施研究

Study on soil and water conservation mechanism and protection of ancient terraces of Southern Subalpine

亚高山古梯田是我国南方特殊的土地利用方式,主要研究了亚高山梯田从旱作到稻作形成过程及维护中自然与人相互作用,以及古梯田的水土保持机理。研究结果表明:亚高山古梯田形成于人地矛盾日益尖锐的10世纪左右,在满足粮食生产的同时,产生了保护自然环境、维系水土的生态效益,为我国大规模开展坡耕地水土流失综合治理工程建设提供了极为重要的借鉴。

The subalpine terrace is a kind of special land use way in the south of China. Formation and interaction influences between natural and human are studied for subalpine terrace from dry to rice farming,and soil and water conservation mechanism of terrace. The study shows that the subalpine terraces were developed by the sharp contradiction between people and land around the 10 th century,so as to meet the requirements of food production,protect the environment,maintain the ecological benefits of soil and water,and also provides a useful reference for soil and water loss controlling project of large-scale slop farmland today.