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江阴市植被净初级生产力及碳汇价值分析

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2007年03期
Page:
139-142
Column:
研究简报
publishdate:
2007-03-20

Article Info:/Info

Title:
NPP and C02 Assimilation Value of Vegetation in Jiangyin, Jiangsu Province
Article ID:
1000-2006(2007)03-0139-04
Author(s):
LIU Zhi bin1 LIU Mao song1* XU Chi1 RUAN Wei-lin2 LIU Xiao zhao3
1. School of Life Science Nanjing University, Nanjing 210093, China; 2. Jiangyin Meteorol. ogical Bureau, Jiangyin 211431, China; 3. Jiangsu lnstitule of Urban Planning and Design, Nanjing 210024, China
Keywords:
Boreal Ecosystem Productivity Simulator (BEPS) Ecosystem services value Afforestation cost method Carbon tax method Value of carbon assimilation Jiangyin
Classification number :
S718.5
DOI:
10.3969/j.jssn.1000-2006.2007.03.032
Document Code:
A
Abstract:
Net primary productivity (NPP) is the foundation of ecosystem services. Based on the Landsat TM/ETM+imageries and daily meteorological data, the land use and land cover change (LUCC) of Jiangyin County were studied, and the NPP of terrestrial ecosystems was calculated with a process-based model, the economic value of CO2 assimilation was assessed by the methods of afforestation cost and carbon tax meanwhile. The results showed that the total mean NPP decreased from 818g/(m2?a) to 699g/(m2 ? a) and the economic value of carbon assimilation dropped by 88 million yuan (RMB) from 1991to 2002. The sprawl of residential area and the reduction of forest area and croplands during this period were the most important reason for the decline of mean annual NPP, the degradation of vegetation quality served as second factor, while the influence of climate changes was not noticeable.

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Last Update: 2013-05-20