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|Table of Contents|

基于HJ-1A/1B CCD数据的区域银杏生物量估测及碳密度制图(PDF)

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

Issue:
2013年02期
Page:
8-14
Column:
森林生态系统碳储量及碳密度研究专栏
publishdate:
2013-03-31

Article Info:/Info

Title:
The regional biomass estimation and carbon density mapping of Ginkgo biloba based on HJ-1A/1B CCD satellite image
Author(s):
CAO Lin1 RUAN Honghua1* DAI Jinsong1 LI Qun2
1.College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China; 2. Taixing Bureau of Forest, Taixing 225400, China
Keywords:
Taixing ginkgo volume biomass carbon density remote sensing regression model
Classification number :
S718
DOI:
10.3969/j.issn.1000-2006.2013.02.002
Document Code:
A
Abstract:
The traditional sampling methods of biomass measurement could be used for local data up scaling, but these methods usually imported errors and could’t acquire continuous spatial information. In this paper, the China’s self-developed medium resolution HJ-1A/1B satellite data was processed and analyzed for ginkgo biomass estimation in Taixing, Jiangsu province. First, the Ginkgo biloba stands were extracted by vegetation sensible bands and eigen components. Second, by using the field estimated volume and the eigen components, the multivariate regression models were selected to estimate volume after the comparison of the statistical response co-efficiencies of both the single factor regression and the multivariate regression models(the R2 of multivariate regression models is 0.72; the RMSE is 0.18). Finally, the total amount of biomass(745 144.14 t)was estimated by local BEF(biomass expansion factor), as well as the total amount of carbon storage and carbon density mapping. The results indicated that the total volume of Ginkgo biloba in 2010 had achieved the goal of the anticipated amount, but the carbon density was relatively low and the spatial distribution was inhomogeneous. So, in order to explore the carbon sink potential and increase the carbon sequestration capacity, the local efforts should be placed in increasing the planting area and strengthening young-and middle-age forests tending, as well as popularizing Ginkgo biloba agroforestry model etc.

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Last Update: 2013-03-31