Distribution characteristics and evolution of rocky and desertified land in Pingguo County of Guangxi based on "3S"techniques
Wang Junhua, Mo Weihua, Chen Yanli, Mo Jianfei, Zhong Shiquan, Su Yongxiu
1.Guangxi Institute of Meteorological and Disaster Mitigation, Remote Sensing Application and Experiment Station of National Satellite Meteorological Center, 530022, Nanning, China;
2.Meteorological Bureau of Luzhai County, 545600, Liuzhou,Guangxi,China; 3.Meteorological Bureau of Liujiang County, 545100, Liuzhou,Guangxi,China
Rocky and desertified land (RDL) is one of the severest environmental problems in eco-rehabilitation of Guangxi. With multi-temporal TM/ ETM data as main information source, the distribution characteristics and evolution rules of RDL in Pingguo County of Guangxi in different periods were studied by field surveys and “3S”techniques. The fol1owing conclusions were obtained: 1) monitoring methods and evaluation model of RDL can objectively reflect the basic situation of RDL in Pingguo County; 2) RDL is mainly distributed in some towns along the Zuoyou river coast and the northeast part of Pingguo County, and from 1988 to 2008 the occurrence degree of RDL worsened firstly and was then alleviated; 3) some advices are given that step-by-step improvement measures should be adopted in the control process. Some suggestions on comprehensive control of RDL are put forward and our proposals and results can be applied to karst regions in southwest China.
王君华1,2,3, 莫伟华1, 陈燕丽1, 莫建飞1, 钟仕全1, 苏永秀1. 基于3S 技术的广西平果县石漠化分布特征及演变规律[J]. 中国水土保持科学, 2014, 12(3): 66-70.
Wang Junhua, Mo Weihua, Chen Yanli, Mo Jianfei, Zhong Shiquan, Su Yongxiu. Distribution characteristics and evolution of rocky and desertified land in Pingguo County of Guangxi based on "3S"techniques. SSWCC, 2014, 12(3): 66-70.
2014, Vol. 12 
