Journal of Geo-information Science >
Measurement of Forest Ecosystem Service Value and Analysis of Its Monthly Variation in Zhejiang Province
Received date: 2013-08-09
Revised date: 2013-10-31
Online published: 2014-03-10
The research of forest ecosystem service value is very important for the construction of green GDP, the formulation of Ecological Compensation Standards, the improvement of people's environmental protection consciousness, and so on. With the development of GIS (Geographic Information System) and RS (Remote Sensing), more and more researchers apply them to the estimation of ESV (Ecosystem Service Value), so as to realize a dynamic, fast, and space discrepant estimation of ESV. In this paper, based mainly on satellite imagery, geo-spatial data, site record, and combined with GIS and RS technology, we firstly calculated NPP, evapotranspiration, soil conservation amount of Zhejiang's forest ecosystem in 2010. Then, we calculated the value of carbon sequestration and oxygen release based on NPP and Afforestation Cost Method, the value of organic production based on NPP and Energy Substitution Method, the value of water conservation based on precipitation, evapotranspiration, and Shadow Project Approach, the value of nutrient recycling based on NPP and Shadow Pricing Method, and the value of soil and water conservation based on soil conservation amount and Opportunity Cost Approach. In the end of this research, the monthly variation of ecosystem service value is analyzed. The analysis results showed that: based on the technology of GIS and RS, we can estimate the value of forest ecosystem service value dynamically and fast. In 2010, the total quantity of different ESV provided by forest ecosystem of Zhejiang Province varied in different months. The biggest one from January to June and December is the value of water conservation; however, the biggest one from July to November is the value of carbon sequestration and oxygen release. Different kinds of Ecosystem Service Value changed regularly from month to month; the monthly variation of carbon sequestration, oxygen release, organic production, nutrient recycling, and soil conservation could be fitted with downwards parabola; the monthly variation of water conservation could be fitted with upwards parabola. The research of this paper has important significance for the establishment of the green GDO accounting system, monthly ecological compensation of the returning farmland to forest project, the improvement of people's environmental consciousness, etc.
LIU Dong, HUANG Haiqing, LI Yan, GONG Fang, ZHANG Lin, LUAN Hong . Measurement of Forest Ecosystem Service Value and Analysis of Its Monthly Variation in Zhejiang Province[J]. Journal of Geo-information Science, 2014 , 16(2) : 225 -232 . DOI: 10.3724/SP.J.1047.2014.00225
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