Application Analysis of the Ecological Value of Agricultural Lands in the Upper Yongding River Basin
Wenbin Zang 1  
Yicheng Fu 1  
Jian Zhang 1  
Wanli Shi 1  
Zhan Qian 2  
Wenxian Guo 3  
Laisheng Liu 1  
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State Key Laboratory of Simulation and Regulation of River Basin Water Cycle, China Institute of Water Resources and Hydropower Research, Beijing, P.R. China
Hunan Province Hydro and Power Design Institute, Changsha Hunan, P.R. China
The Yellow River Institute of Science, North China University of Water Resources and Electric Power, Zhengzhou, Henan, P.R. China
Yicheng Fu   

China Institute of Water Resources and Hydropower Research, A-1 Fuxing Road Haidian District, Beijing, 100038 beijing, China
Online publish date: 2018-08-31
Publish date: 2018-12-20
Submission date: 2017-12-13
Final revision date: 2018-02-01
Acceptance date: 2018-02-11
Pol. J. Environ. Stud. 2019;28(2)
The value of agro-ecosystem services is closely related to crop yield. As a production input component in an agro-ecosystem, agro-ecosystem services have practical value. It is generally believed that agroecosystem services are substitutes for purchase investment and can decrease agricultural production costs. Crop yield increases may negatively affect agro-ecosystem protection, and conversely, agroecosystem protection may result in crop yield reductions. Based on the established production model of agro-ecosystems, we determined the reasonable substitutive conditions and production outputs, and we quantitatively studied the ratio of the land area for agricultural production to that for ecosystem services. With the upper Yongding River Basin in China as the study area, we calculated agricultural yield elasticity and concluded that the corresponding crop yield would be reduced by 2.7% when the land area for ecosystem services in the basin increased by 1.0%. At present, the ecological service value of the Yongding River Basin showed an increasing trend.