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Remote Sens. 2013, 5(11), 6043-6062; doi:10.3390/rs5116043
Article

Recent Changes in Terrestrial Gross Primary Productivity in Asia from 1982 to 2011

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Received: 30 September 2013; in revised form: 25 October 2013 / Accepted: 11 November 2013 / Published: 15 November 2013
(This article belongs to the Special Issue Monitoring Global Vegetation with AVHRR NDVI3g Data (1981-2011))
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Abstract: Past changes in gross primary productivity (GPP) were assessed using historical satellite observations based on the Normalized Difference Vegetation Index (NDVI) from the Advanced Very High Resolution Radiometer (AVHRR) onboard the National Oceanic and Atmospheric Administration (NOAA) satellite series and four terrestrial biosphere models to identify the trends and driving mechanisms related to GPP and NDVI in Asia. A satellite-based time-series data analysis showed that approximately 40% of the area has experienced a significant increase in the NDVI, while only a few areas have experienced a significant decreasing trend over the last 30 years. The increases in the NDVI are dominant in the sub-continental regions of Siberia, East Asia, and India. Simulations using the terrestrial biosphere models also showed significant increases in GPP, similar to the results for the NDVI, in boreal and temperate regions. A modeled sensitivity analysis showed that the increases in GPP are explained by increased temperature and precipitation in Siberia. Precipitation, solar radiation and CO2 fertilization are important factors in the tropical regions. However, the relative contributions of each factor to GPP changes are different among the models.
Keywords: terrestrial carbon cycle; NOAA AVHRR; Asia; terrestrial biosphere model terrestrial carbon cycle; NOAA AVHRR; Asia; terrestrial biosphere model
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Ichii, K.; Kondo, M.; Okabe, Y.; Ueyama, M.; Kobayashi, H.; Lee, S.-J.; Saigusa, N.; Zhu, Z.; Myneni, R.B. Recent Changes in Terrestrial Gross Primary Productivity in Asia from 1982 to 2011. Remote Sens. 2013, 5, 6043-6062.

AMA Style

Ichii K, Kondo M, Okabe Y, Ueyama M, Kobayashi H, Lee S-J, Saigusa N, Zhu Z, Myneni RB. Recent Changes in Terrestrial Gross Primary Productivity in Asia from 1982 to 2011. Remote Sensing. 2013; 5(11):6043-6062.

Chicago/Turabian Style

Ichii, Kazuhito; Kondo, Masayuki; Okabe, Yuki; Ueyama, Masahito; Kobayashi, Hideki; Lee, Seung-Jae; Saigusa, Nobuko; Zhu, Zaichun; Myneni, Ranga B. 2013. "Recent Changes in Terrestrial Gross Primary Productivity in Asia from 1982 to 2011." Remote Sens. 5, no. 11: 6043-6062.


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