Objective:Vision 2020 is launched in 1999, currently a lot of program is undergoing accompany with this program, so as to investigate the main cause of eye disease and blindness in Helinger County.

This study estimated the 1997-2007 Hollinger County land use in the value of ecosystem services.

Methods:A random and grouped method was used to investigate the main cause of eye disease and blindness in Helinger County.

Overall, the study period and Hollinger County's economic development and ecosystem services has a negative correlation between.

Based on the indexes of landscape pattern, the change of spatial pattern of agricultural landscape was analyzed in Shengliying township from 1991 to 1997.