基于C-FIX模型的黑龙江省森林植被净初级生产力遥感估算

doi:10.11707/j.1001-7488.20110703

Scientia Silvae Sinicae ›› 2011, Vol. 47 ›› Issue (7): 13-19.doi: 10.11707/j.1001-7488.20110703

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Remote Sensing Estimation of Forest Net Primary Productivity in Heilongjiang Province with C-FIX Model

Zhang Dongyou¹, Feng Zhongke^1,2, Li Yiqiu³, Zhang Lijuan¹, Dong Bin⁴

1. Key Laboratory of Remote Sensing Monitoring of Geographic Environment, College of Heilongjiang Province Harbin Normal University Harbin 150025;2. Beijing Forestry University Beijing 100083;3. Mianyang Normal University Mianyang 621000;4. Anhui Agricultural University Hefei 230036

Received:2010-04-17 Revised:2010-12-22 Online:2011-07-25 Published:2011-07-25

Abstract

Abstract:

The C-FIX model was used to estimate the forest vegetation NPP of Heilongjiang Province from May to September in 2000 based on ETM+, DEM and meteorological data,and the estimated results were compared with the MODIS NPP products. The result showed that the gross NPP of forests in Heilongjiang from May to September in 2000 was 69.75×10¹² gC, with the greatest monthly gross NPP occurred in June; accounted for 27.23% of the total NPP from May to September. June, July and August were the main months for accumulation of NPP. The total NPP of forests was 60.99×10¹² gC, accounted for 87.44% of the total NPP from May to September; among which the total NPP of shrub land accounted for 10.41%; the gross NPP of open forest land accounted for 1.63%; and the gross NPP of other forest land accounted for 0.52%. The root mean square error was 17.12 between MODIS product value and estimated value, and the error of estimated NPP with the MODIS was from 3.92% to 5.85%.

Key words: net primary production, remote sensing estimation, C-FIX model, Heilongjiang Province

CLC Number:

S718.55⁺6

Zhang Dongyou;Feng Zhongke;Li Yiqiu;Zhang Lijuan;Dong Bin. Remote Sensing Estimation of Forest Net Primary Productivity in Heilongjiang Province with C-FIX Model[J]. Scientia Silvae Sinicae, 2011, 47(7): 13-19.

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Remote Sensing Estimation of Forest Net Primary Productivity in Heilongjiang Province with C-FIX Model

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