毕节喀斯特峰丛区石漠化土地利用配置

THE LAND USE DISTRIBUTION OF ROCKY DESERTIFICATION IN THE KARST FENGCONG HILLY AREA OF BIJIE

以毕节老街村喀斯特石漠化土地利用为例,采用实地调查的方法获取研究数据,分析了研究区喀斯特石漠化土地利用效益,结果表明:土地利用经济效益,随石漠化程度加重而衰减。在此基础上,遵循石漠化治理的一般原则,采用土地景观生态的基本原理,以土地类型单元为配置对象,提出坡地保土耕作、桑草养殖、桑药种植、耕作便道树篱、封山育林多种模式集成的土地空间配置方案,优化土地利用结构。土地优化下的经济效益,优于现状种植模式,且利于植被恢复和水土保持E有效探索喀斯特山区石漠化治理和生态建设的实践途径。

Take as the case of the Karst rocky desertification land utilization in the Laojie village of Bijie. It was procure the research data that of adopt sampling and on-the -spot investigation. The result showed that the economical benefits of the Karst rocky desertification land utilization is failing with add to level in the Laojie village. Take the land-type units as the distribution an object, use fundamentals of landscape ecological to disposition land, follow the principle of the Karst rocky desertification harness, and put forward a plan of land use distribution for the eco-harness of Karst rocky desertification, that about the hillside fields cultivation of prevention soil ero- sion, and the mulberry growing and silkworm breeding add the grass growing and pig breeding, and the mulberry growing and silkworm breeding add the medicinal plant growing, and the cultivation shortcut corridor hedge, and the close hillsides, optimize the structure of land use. The economical benefits of land optimize pattern fairly good than tradition cultivate model, and is of advantage to the vegetation recover and water and soil conservation, it explores the effective route of eco-repairing in the Karst rocky desertification mountainous area.