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
NETL
NSTL
万方数据
