Estimation and analysis of the ecosystem service value of agriculture land resource in Wuqi county during three de-faring periods
SHEN Qiang1, JIANG Zhi-de1*, WANG Ji-jun2
(1 College of Economy and Management, Northwest A & F University, Yangling 712100, Shaanxi, China;2 Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, Shaanxi, China)
Abstract:
Taking Wuqi county, Shaanxi province as an example, the ecosystem service value of agricultural land resource during three de-farming periods was estimated;the change of the ecosystem service value was analyzed;and effects of grain for green project on the ecosystem service value of agricultural land resource were also discussed. It indicated that the ratios of the direct economic output value to the indirect ecosystem service value of agricultural land resource in Wuqi country during three different periods were 1∶0.84, 1∶2.63 and 1∶3.56, respectively. With the further implementary of de-farming, the net service value of the agricultural land resource increased from 454.03 million yuan during the pre-de-farming period to 816.04 million yuan during the earlier de-farming period and 1 649.25 million yuan during the medium-term de-farming period, respectively. The win-win situation of economy and ecology was achieved.
KeyWords:
agricultural land resource;de-farming;ecosystem service value;Wuqi county
