喀斯特峡谷地区不同等级石漠化治理的生态效应——以贵州省花江石漠化生态综合治理示范区为例

 选取贵州省花江石漠化生态综合治理示范区为研究区,对比分析石漠化生态治理前后不同等级石漠化的土壤理化性质、小气候特征、植被数量特征和地表水土流失状况等指标。结果表明:石漠化是可以治理的,强度石漠化治理效应优于中度石漠化,轻度石漠化次之,潜在石漠化生态效应速度最慢;治理措施有效地改善了土壤理化性质、增强了土壤肥力,提高了地表生物量和植被覆盖度,生物多样性得到了有效恢复和保护,改善了区域局部小气候。

Ecological effects of rocky desertification control in the Karst Gorge area A case study on the administration areas of the ecological integrated management for rocky desertification in Huajiang of Guizhou Province

The administration areas of the ecological integrated management for the Karst rocky desertification in Huajiang of Guizhou Province was selected as the study area. Based on the comparable analysis on soil physicochemistrical properties, microclimate effects, vegetation quantitative characteristics and surface condition of soil erosion between before and after the desertification control, the results indicate that the rocky desertification may be controlled, and the effects show that the Strong is best, which is better than the other three kinds ; Latent is worst. At the same time the soil property, soil fertility, surface vegetation cover rate, the biodiversity and the regional local climate were improved.