不同强度等级石漠化土地植被恢复技术初步研究——以贵州花江试验示范区查尔岩试验小区为例

A PRELIMINARY STUDY ON THE TECHNOLOGY OF VEGETATION RESTORATION ON THE LAND OF DIFFERENT ROCKY DESERTIFICATION DEGREE—— A Case Study of the Huajiang Demonstration Area,Guizhou

分析了贵州花江试验示范区查尔岩试验小区中不同强度等级石漠化土地所表现出的缺土、缺水、植被覆盖度低、土地总体生产力水平低下等特征,提出了不同强度等级石漠化土地的植被恢复途径与对策,以及不同强度石漠化土地植被恢复过程中的主要造林植草技术。

Karst rocky desertification land is a major type of desertification. Karst rocky desertification is a process of land degradation. During the process, the soil is eroded seriously or thoroughly, bedrock exposes widespread, bearing capability of land declines greatly with very low rate of land use and at last, landscape becomes similar to desert on the earth under violent human impact on the vulnerable karst eco-geo-environment. According to degradation degree of karst rocky desertification, karst rocky desertification land can be divided into the non-obvious rocky desertification land, the latent rocky desertification land, the light rocky desertification land, the medium-degree rocky desertification land, and the intensive rocky desertification land. The features of lack of soil, water shortage, low vegetation cover, low level productive forces etc. in the study area are analyzed, and the technology and measure for vegetation restoration, afforestation and grass planting on the land of different karst rocky desertification degree are put forward.