PROGRESS IN GEOGRAPHY ›› 2015, Vol. 34 ›› Issue (1): 92-99.doi: 10.11820/dlkxjz.2015.01.011

• Ecology and Sustainable Development • Previous Articles     Next Articles

Calculation methods of paddy ecosystem service value and application: a case study of Suzhou City

LIU Lihua, YIN Changbin, QIAN Xiaoping   

  1. Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2014-09-01 Revised:2014-11-01 Online:2015-01-25 Published:2015-01-25
  • About author:10.11820/dlkxjz.2015.01.011

Abstract: Inadequate attention to the ecosystem service functions of paddy fields is a major problem for paddy protection, leading to a serious loss of paddy resources. Taking paddies in Suzhou City as an example, this study used afforestation cost, Swedish carbon tax, cost of oxygen- generation by industrial means, replacement cost, shadow engineering, and equivalent factor methods to estimate paddy ecosystem services values. The results show that the net total value of paddy ecosystem services in Suzhou City is 60785.18×105 RMB. The net value of per unit area is 73111.84 Yuan/hm2. Among these, the total positive value is 68485.93×105 RMB, and the total negative value of environmental impact is 7700.75×105 RMB. The positive ecosystem service value is 8.89 times of the negative value. Based on the calculation of the various parts of paddy ecosystem service value, the actual production value is much lower than the ecological economic value. This indicates that as an artificial wetland ecosystem, paddy fields and their ecological service value play a very important role to the sustainable development of the socioeconomic system. This study may help determine the economic compensation standards of paddy resource protection, providing a basis for the introduction of relevant policies at all levels of government.

Key words: ecosystem service, paddy, Suzhou City, value assessment