论文部分内容阅读
合理的土地利用方式是三峡库区水土保持的重要基础,对确保三峡水库安全运行和库区生态安全具有重要作用。提出了库岸复合立体农业、有限顺坡耕作、水旱耕地交错布局三种典型土地利用模式,介绍了各种模式的结构和布局设计,分析了各种模式的基本原理及功能。三种模式投入低、操作方便并且高效、实用,适合三峡库区的地形地貌特征和社会经济环境。今后应加强对各种具有水土保持功能的土地利用方式的效应监测和适宜性评价,以筛选出适合三峡库区不同环境条件的土地利用模式。
Rational land use is an important foundation for soil and water conservation in the Three Gorges Reservoir Area and plays an important role in ensuring the safe operation of the Three Gorges Reservoir and ecological security in the Three Gorges Reservoir Area. Three kinds of typical land use patterns such as compound crop farming with bank and bank, limited slope farming and staggered layout of water and dry land were put forward. The structure and layout design of various patterns were introduced and the basic principles and functions of various patterns were analyzed. The three modes are low investment, easy to operate and efficient and practical, suitable for the topography of the Three Gorges reservoir area and the socio-economic environment. In the future, we should strengthen the monitoring and suitability evaluation of various land use types with the functions of soil and water conservation to screen out the land use patterns suitable for different environmental conditions in the Three Gorges reservoir area.