Spatiotemporal Variation of Vegetation Productivity and Its Feedback to Climate Change in Northeast China over the Last 30 Years
Gross primary productivity (GPP) represents total vegetation productivity and is crucial in regional or global carbon balance. The Northeast China (NEC), abundant in vegetation resources, has a relatively large vegetation productivity; however, under obvious climate change (especially warming), whet...
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doaj-d5157ab5607645cba5cdea0d2b65bebb2021-03-04T00:07:08ZengMDPI AGRemote Sensing2072-42922021-03-011395195110.3390/rs13050951Spatiotemporal Variation of Vegetation Productivity and Its Feedback to Climate Change in Northeast China over the Last 30 YearsLing Hu0Wenjie Fan1Wenping Yuan2Huazhong Ren3Yaokui Cui4Institute of Remote Sensing and Geographic Information System, School of Earth and Space Sciences, Peking University, Beijing 100871, ChinaInstitute of Remote Sensing and Geographic Information System, School of Earth and Space Sciences, Peking University, Beijing 100871, ChinaSchool of Atmospheric Sciences, Sun Yat-Sen University, Guangzhou 519082, ChinaInstitute of Remote Sensing and Geographic Information System, School of Earth and Space Sciences, Peking University, Beijing 100871, ChinaInstitute of Remote Sensing and Geographic Information System, School of Earth and Space Sciences, Peking University, Beijing 100871, ChinaGross primary productivity (GPP) represents total vegetation productivity and is crucial in regional or global carbon balance. The Northeast China (NEC), abundant in vegetation resources, has a relatively large vegetation productivity; however, under obvious climate change (especially warming), whether and how will the vegetation productivity and ecosystem function of this region changed in a long time period needs to be revealed. With the help of GPP products provided by the Global LAnd Surface Satellite (GLASS) program, this paper gives an overview of the regional feedback of vegetation productivity to the changing climate (including temperature, precipitation, and solar radiation) across the NEC from 1982 to 2015. Analyzing results show a slight positive response of vegetation productivities to warming across the NEC with an overall increasing trend of GPP<sub>GS </sub>(accumulated GPP within the growing season of each year) at 4.95 g C/m<sup>2</sup>. yr<sup>−2</sup> over the last three decades. More specifically, the growth of crops, rather than forests, contributes more to the total increasing productivity, which is mainly induced by the agricultural technological progress as well as warming. As for GPP in forested area in the NEC, the slight increment of GPP<sub>GS </sub>in northern, high-latitude forested region of the NEC was caused by warming, while non-significant variation of GPP<sub>GS</sub> was found in southern, low-latitude forested region. In addition, an obvious greening trend, as reported in other regions, was also found in the NEC, but GPP<sub>GS</sub> of forests in southern NEC did not have significant variations, which indicated that vegetation productivity is not bound to increase simultaneously with greening, except for these high-latitude forested areas in the NEC. The regional feedback of vegetation productivity to climate change in the NEC can be an indicator for vegetations growing in higher latitudes in the future under continued climate change.https://www.mdpi.com/2072-4292/13/5/951vegetation productivityNortheast Chinaclimate changespatiotemporal distribution |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ling Hu Wenjie Fan Wenping Yuan Huazhong Ren Yaokui Cui |
spellingShingle |
Ling Hu Wenjie Fan Wenping Yuan Huazhong Ren Yaokui Cui Spatiotemporal Variation of Vegetation Productivity and Its Feedback to Climate Change in Northeast China over the Last 30 Years Remote Sensing vegetation productivity Northeast China climate change spatiotemporal distribution |
author_facet |
Ling Hu Wenjie Fan Wenping Yuan Huazhong Ren Yaokui Cui |
author_sort |
Ling Hu |
title |
Spatiotemporal Variation of Vegetation Productivity and Its Feedback to Climate Change in Northeast China over the Last 30 Years |
title_short |
Spatiotemporal Variation of Vegetation Productivity and Its Feedback to Climate Change in Northeast China over the Last 30 Years |
title_full |
Spatiotemporal Variation of Vegetation Productivity and Its Feedback to Climate Change in Northeast China over the Last 30 Years |
title_fullStr |
Spatiotemporal Variation of Vegetation Productivity and Its Feedback to Climate Change in Northeast China over the Last 30 Years |
title_full_unstemmed |
Spatiotemporal Variation of Vegetation Productivity and Its Feedback to Climate Change in Northeast China over the Last 30 Years |
title_sort |
spatiotemporal variation of vegetation productivity and its feedback to climate change in northeast china over the last 30 years |
publisher |
MDPI AG |
series |
Remote Sensing |
issn |
2072-4292 |
publishDate |
2021-03-01 |
description |
Gross primary productivity (GPP) represents total vegetation productivity and is crucial in regional or global carbon balance. The Northeast China (NEC), abundant in vegetation resources, has a relatively large vegetation productivity; however, under obvious climate change (especially warming), whether and how will the vegetation productivity and ecosystem function of this region changed in a long time period needs to be revealed. With the help of GPP products provided by the Global LAnd Surface Satellite (GLASS) program, this paper gives an overview of the regional feedback of vegetation productivity to the changing climate (including temperature, precipitation, and solar radiation) across the NEC from 1982 to 2015. Analyzing results show a slight positive response of vegetation productivities to warming across the NEC with an overall increasing trend of GPP<sub>GS </sub>(accumulated GPP within the growing season of each year) at 4.95 g C/m<sup>2</sup>. yr<sup>−2</sup> over the last three decades. More specifically, the growth of crops, rather than forests, contributes more to the total increasing productivity, which is mainly induced by the agricultural technological progress as well as warming. As for GPP in forested area in the NEC, the slight increment of GPP<sub>GS </sub>in northern, high-latitude forested region of the NEC was caused by warming, while non-significant variation of GPP<sub>GS</sub> was found in southern, low-latitude forested region. In addition, an obvious greening trend, as reported in other regions, was also found in the NEC, but GPP<sub>GS</sub> of forests in southern NEC did not have significant variations, which indicated that vegetation productivity is not bound to increase simultaneously with greening, except for these high-latitude forested areas in the NEC. The regional feedback of vegetation productivity to climate change in the NEC can be an indicator for vegetations growing in higher latitudes in the future under continued climate change. |
topic |
vegetation productivity Northeast China climate change spatiotemporal distribution |
url |
https://www.mdpi.com/2072-4292/13/5/951 |
work_keys_str_mv |
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