气候变化领域集成服务门户(CCPortal): Effects of Environmental Factors on the Changes in MODIS NPP along DEM in Global Terrestrial Ecosystems over the Last Two Decades

CCPortal

DOI	10.3390/rs14030713
	Effects of Environmental Factors on the Changes in MODIS NPP along DEM in Global Terrestrial Ecosystems over the Last Two Decades
	Wang, Zhaoqi; Wang, Hong; Wang, Tongfang; Wang, Lina; Huang, Xiaotao; Zheng, Kai; Liu, Xiang
通讯作者	Wang, ZQ (通讯作者)，Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining 810016, Peoples R China.
发表日期	2022
EISSN	2072-4292
卷号	14 期号:3
英文摘要	Global warming has exerted widespread impacts on the terrestrial ecosystem in the past three decades. Vegetation is an important part of the terrestrial ecosystem, and its net primary productivity (NPP) is an important variable in the exchange of materials and energy in the terrestrial ecosystem. However, the effect of climate variation on the spatial pattern of zonal distribution of NPP has remained unclear over the past two decades. Therefore, we analyzed the spatiotemporal patterns and trends of MODIS NPP and environmental factors (temperature, radiation, and soil moisture) derived from three sets of reanalysis data. The moving window method and digital elevation model (DEM) were used to explore their changes along elevation gradients. Finally, we explored the effect of environmental factors on the changes in NPP and its elevation distribution patterns. Results showed that nearly 60% of the global area exhibited an increase in NPP with increasing elevation. Soil moisture has the largest uncertainty either in the spatial pattern or inter-annual variation, while temperature has the smallest uncertainty among the three environmental factors. The uncertainty of environmental factors is also reflected in its impact on the elevation distribution of NPP, and temperature is still the main dominating environmental factor. Our research results imply that the carbon sequestration capability of vegetation is becoming increasingly prominent in high-elevation regions. However, the quantitative evaluation of its carbon sink (source) functions needs further research under global warming.
关键词	NET PRIMARY PRODUCTIVITY QINGHAI-TIBET PLATEAU CLIMATE-CHANGE SOIL-MOISTURE ALTITUDINAL GRADIENT DRIVING FORCES CARBON STORAGE EL-NINO VEGETATION LONG
英文关键词	net primary productivity (NPP); global warming; digital elevation model (DEM); uncertainty
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS记录号	WOS:000754844700001
来源期刊	REMOTE SENSING
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254610
作者单位	[Wang, Zhaoqi; Wang, Hong; Wang, Tongfang; Wang, Lina; Zheng, Kai; Liu, Xiang] Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining 810016, Peoples R China; [Huang, Xiaotao] Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Restorat Ecol Cold Reg Lab Qinghai, Xining 810008, Peoples R China; [Huang, Xiaotao] Chinese Acad Sci, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China
推荐引用方式 GB/T 7714	Wang, Zhaoqi,Wang, Hong,Wang, Tongfang,et al. Effects of Environmental Factors on the Changes in MODIS NPP along DEM in Global Terrestrial Ecosystems over the Last Two Decades[J]. 中国科学院西北生态环境资源研究院,2022,14(3).
APA	Wang, Zhaoqi.,Wang, Hong.,Wang, Tongfang.,Wang, Lina.,Huang, Xiaotao.,...&Liu, Xiang.(2022).Effects of Environmental Factors on the Changes in MODIS NPP along DEM in Global Terrestrial Ecosystems over the Last Two Decades.REMOTE SENSING,14(3).
MLA	Wang, Zhaoqi,et al."Effects of Environmental Factors on the Changes in MODIS NPP along DEM in Global Terrestrial Ecosystems over the Last Two Decades".REMOTE SENSING 14.3(2022).