Current Situation and Zoning Protection and Restoration Strategies of Rocky Desertification Grasslands in Karst Areas of Yunnan Province
According to the latest survey data,the rocky desertification grassland in Yunnan Province is mainly distributed in five regions including Qujing City,Kunming City and Honghe Prefecture,with a to-tal area of 379700 hm2,accounting for 3.53%of the karst areas.The widest distribution range was from 1 500 to 2500 meters above sea level,accounting for 47.85%,and the distribution range of bedrock ex-posure was 30%to 94%.The distribution range with vegetation coverage of 10%to 19%was the widest,accounting for 37.85%,with the vast majority distributed in areas with thin or even extremely thin soil layers,accounting for 92.10%.Based on the spatial distribution characteristics of rocky desertification grasslands,and fully connecting with the construction plans of various ecological protection and restora-tion projects,taking into account the integrity of karst ecosystems,the continuity of geographical units,and the sustainability of economic and social development,the distribution of rocky desertification grass-lands in Yunnan Province was divided into six zones,and the ecological protection and restoration strate-gies of rocky desertification grasslands were elaborated in each zone.
rocky desertification grasslanddistribution characteristicsprotection and restorationkarst areas of Yunnan Province
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NSTL
万方数据
