Ecological Effects in Ecological Management of Rocky Desertification in Karst Mountain Region
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Ecological Effects in Ecological Management of Rocky Desertification in Karst Mountain Region
Bulletin of Soiland Water ConservationVol. 30, Issue 4, Pages: 241-246(2011)
作者机构:
1. 贵州凯里学院,贵州,凯里,556000
2. 贵州师范大学中国南方喀斯特研究院,贵州,贵阳,550001
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Published:2011
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HE Xiang, XIONG Kang-ning, ZHOU Wen-long, et al. Ecological Effects in Ecological Management of Rocky Desertification in Karst Mountain Region[J]. Bulletin of Soiland Water Conservation, 2011, 30(4): 241-246.
DOI:
HE Xiang, XIONG Kang-ning, ZHOU Wen-long, et al. Ecological Effects in Ecological Management of Rocky Desertification in Karst Mountain Region[J]. Bulletin of Soiland Water Conservation, 2011, 30(4): 241-246.DOI:
Ecological Effects in Ecological Management of Rocky Desertification in Karst Mountain Region
The change of soil physico chemical property and vegetation quantity attributes in Huajiang canyon demonstration area of eco logical management of rocky desertification in Guizhou Province during the period from 2005 to 2009 was analyzed.The results indicated t hat:(1)The coefficient of variation of soil physico-chemical proper ties reduced
suggest ing its spatial variation degree decreased.(2)The soil total porosity slightly declined;the soil non-capillary porosity significantly increased;the soil capillary porosity and the soil capillary capacity decrease markedly;the soil field capacity rose obviously
indicating that soil porosity configuration became more rational.(3)Change of organic matter content was not distinct.Total nitrogen and total phosphorus significantly increased but total potassium decreased.Meawhile
soil pH value slightly decreased.(4)The height
base diameter
crown diameter and evenness of plants increased prominently.The ecological efficiency of soil quality and plant community was preferably coherent.All above result sillustrate that the soil and plant ecological efficiency have been improved
which ameliorate the environments in rocky desertification of ecological management areas in karst mountainous region.