Based on the data of the annual forestland changes of the subcompartments in 2013 in Dushan County and combined with the field survey,rocky desertification in the small watershed of the Bawang River was evaluated through establishment of the index system and use of entropy method for calculating the index weight and use of the weighted average method for calculating rocky desertification degree.The results showed that there was 372.71 hectares of land suffering rocky desertification in the study area.The percentages of moderate desertification,severe and very severe rocky desertification were 37.68%,19.79% and 42.53%respectively.On the basis of the analysis results,the desertification formation in the study area was studied and some suggestions was put forward in order to provide some reference for rocky desertification control of karst region.
HU Huanxiang
,
ZHANG Min
. Research on Evaluation of Rocky Desertification Degree of Small Watersheds[J]. Forest and Grassland Resources Research, 2015
, 0(4)
: 134
-138
.
DOI: 10.13466/j.cnki.lyzygl.2015.04.023
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