干旱区生态环境知识资源中心(Arid): Response of net primary production to land use and climate changes in the middle-reaches of the Heihe River Basin

Arid

DOI	10.1002/ece3.5068
	Response of net primary production to land use and climate changes in the middle-reaches of the Heihe River Basin
	Xiao, Xingyuan 1,2; Li, Xiubin 2; Jiang, Tao 1; Tan, Minghong 2; Hu, Minyue 1; Liu, Yaqun 2,3; Zeng, Wen 1
通讯作者	Xiao, Xingyuan
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2019
卷号	9 期号:8 页码:4651-4666
英文摘要	Net primary production (NPP) supplies matter, energy, and services to facilitate the sustainable development of human society and ecosystem. The response mechanism of NPP to land use and climate changes is essential for food security and biodiversity conservation but lacks a comprehensive understanding, especially in arid and semi-arid regions. To this end, taking the middle-reaches of the Heihe River Basin (MHRB) as an example, we uncovered the NPP responses to land use and climate changes by integrating multisource data (e.g., MOD17A3 NPP, land use, temperature, and precipitation) and multiple methods. The results showed that (a) land use intensity (LUI) increased, and climate warming and wetting promoted NPP. From 2000 to 2014, the LUI, temperature, and precipitation of MHRB increased by 1.46, 0.58 degrees C, and 15.76mm, respectively, resulting in an increase of 14.62gC/m(2) in annual average NPP. (b) The conversion of low-yield cropland to forest and grassland increased NPP. Although the widespread conversion of unused land and grassland to cropland boosted both LUI and NPP, it was not conducive to ecosystem sustainability and stability due to huge water consumption and human-appropriated NPP. Urban sprawl occupied cropland, forest, and grassland and reduced NPP. (c) Increase in temperature and precipitation generally improved NPP. The temperature decreasing <1.2 degrees C also promoted the NPP of hardy vegetation due to the simultaneous precipitation increase. However, warming-induced water stress compromised the NPP in arid sparse grassland and deserts. Cropland had greater NPP and NPP increase than natural vegetation due to the irrigation, fertilizers, and other artificial inputs it received. The decrease in both temperature and precipitation generally reduced NPP, but the NPP in the well-protection or less-disturbance areas still increased slightly.
英文关键词	anthropogenic-natural coupled effects carbon sequestration ecosystem sustainability remote sensing spatial differential response vegetation primary productivity
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000466104200027
WOS关键词	COMPARING GLOBAL-MODELS ; COVER CHANGE ; VEGETATION GREENNESS ; ECOSYSTEM SERVICE ; INNER-MONGOLIA ; TERRESTRIAL ; CHINA ; IMPACTS ; NPP ; SATELLITE
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215256
作者单位	1.Shandong Univ Sci & Technol, Coll Geomat, Qingdao, Shandong, Peoples R China; 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China; 3.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Xingyuan,Li, Xiubin,Jiang, Tao,et al. Response of net primary production to land use and climate changes in the middle-reaches of the Heihe River Basin[J]. 中国科学院地理科学与资源研究所,2019,9(8):4651-4666.
APA	Xiao, Xingyuan.,Li, Xiubin.,Jiang, Tao.,Tan, Minghong.,Hu, Minyue.,...&Zeng, Wen.(2019).Response of net primary production to land use and climate changes in the middle-reaches of the Heihe River Basin.ECOLOGY AND EVOLUTION,9(8),4651-4666.
MLA	Xiao, Xingyuan,et al."Response of net primary production to land use and climate changes in the middle-reaches of the Heihe River Basin".ECOLOGY AND EVOLUTION 9.8(2019):4651-4666.