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Estimation and analysis of net primary productivity by integrating MODIS remote sensing data with a light use efficiency model

Author

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  • Li, Jia
  • Cui, Yaoping
  • Liu, Jiyuan
  • Shi, Wenjiao
  • Qin, Yaochen

Abstract

Estimates of regional net primary productivity (NPP) are very useful in modeling regional and global carbon cycles. This work proposed a new method to study NPP characteristics and changes in the Inner Mongolia Autonomous Region, China. To estimate NPP accurately, we integrated photosynthetically active radiation (PAR) with a light use efficiency model, derived from Moderate Resolution Imaging Spectroradiometer atmospheric and land products. Validation analyses showed that the PAR and NPP values simulated by the model matched observed data well. Annual NPP in the study area was about 0.25PgCa−1 from 2003 to 2008. In spatial distribution, NPP decreased from northeast to southwest in the Inner Mongolia Autonomous Region. NPP from May to September accounted for 84.2% of annual NPP, while that from July to August accounted for 44.3%. NPP was significantly correlated to both precipitation and temperature at monthly temporal scales. NPP also changed with the fraction of absorbed PAR.

Suggested Citation

  • Li, Jia & Cui, Yaoping & Liu, Jiyuan & Shi, Wenjiao & Qin, Yaochen, 2013. "Estimation and analysis of net primary productivity by integrating MODIS remote sensing data with a light use efficiency model," Ecological Modelling, Elsevier, vol. 252(C), pages 3-10.
    • Handle: RePEc:eee:ecomod:v:252:y:2013:i:c:p:3-10
    DOI: 10.1016/j.ecolmodel.2012.11.026
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    Cited by:

    1. Lei Wan & Huiyu Liu & Haibo Gong & Yujia Ren, 2020. "Effects of Climate and Land Use changes on Vegetation Dynamics in the Yangtze River Delta, China Based on Abrupt Change Analysis," Sustainability, MDPI, vol. 12(5), pages 1-20, March.
    2. Yiming Fu & Yaoping Cui & Yaochen Qin & Nan Li & Liangyu Chen & Haoming Xia, 2019. "Continued Hydrothermal and Radiative Pressure on Changed Cropland in China," Sustainability, MDPI, vol. 11(14), pages 1-14, July.
    3. Jinlong Zhang & Yuan Qi & Rui Yang & Xiaofang Ma & Juan Zhang & Wanqiang Qi & Qianhong Guo & Hongwei Wang, 2023. "Impacts of Climate Change and Land Use/Cover Change on the Net Primary Productivity of Vegetation in the Qinghai Lake Basin," IJERPH, MDPI, vol. 20(3), pages 1-16, January.

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