The successional rule of vegetation and dynamics of soil nutrient elements after 22-years' natural restoration were studied in karst disturbed area in northwest Guangxi,which would promote the degraded ecosystem restoration and reconstruction in northwest Guangxi. The study was employed overall and sample quadrate investigation method and taken the climax community in Mulun Natural Reserve in Huanjiang County as control. The results showed that the diversity lost severely in the disturbed area with only 26.6%species of that in Mulun Natural Re...