川西北沙化治理现状及治理区划

川西北共有沙化土地82.19万hm2,2007~2010年共计投入资金7 000万元,建设沙化治理示范区8 040 hm2.文章以最新沙化监测数据为基础,总结出一套适合川西北的流动沙地、半固定沙地、固定沙地和露沙地治理模式,针对不同的沙地类型选择了封育、种草、植灌、沙障等模式.结合川西北沙区分布的流域、地形地貌、沙化成因、气候等因素,遵循地域连贯性原则进行了治理区划,划分出黄河水系白河、黑河流域重点沙化治理区、长江水系雅砻江流域重点沙化治理区以及长江水系大渡河流域、长江水系岷江流域、长江水系雅砻江流域一般沙化治理区,并提出了各治理区的治理方案.

Desertification Governance and Its Governance Regionalization in Northwest Sichuan

There are total 821,900 hm2 desertification land in North-west Shichuan,from 2007 to 2010,government invested totaled 70,000,000yuan to built desertification governance demonstration area of 8040 hm2.Based on latest desertification monitoring data,we summarized a governance model suitable for Northwest Sichuan flow sandy,semi fixed sandy,fixed sandy and Lucille sandy,for different sandy types chosen fencing,grass plant irrigation,sand barrier etc modes.According to the factors of Northwest Sichuan sand zone distribution watershed on landform,desertification causes,climate,and followed the principle of geographical coherence,governance regionalization has been conducted,divided Yellow watershed Paiho River,Heihe watershed and Yangtze River Yalong watershed as key desertification governance zones,and Yangtze River Dadu basin,Yangtze River Minjiang basin,Yangtze River Yalong River as general desertification control area.Governance programs for each governance zone have been proposed.