干旱区生态环境知识资源中心(Arid): Assessing the degree of land degradation and rehabilitation in the Northeast Asia dryland region using net primary productivity and water use efficiency

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DOI	10.1002/ldr.3506
	Assessing the degree of land degradation and rehabilitation in the Northeast Asia dryland region using net primary productivity and water use efficiency
	Kang, Wenping 1,2; Kang, Sinkyu 1; Liu, Shulin 2; Han, Youngji 1
通讯作者	Kang, Sinkyu
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2020
卷号	31 期号:7 页码:816-827
英文摘要	Changes in vegetation productivity and species composition have been used as conventional indicators of land degradation and rehabilitation assessments. The two biophysical parameters vary nonlinearly during land change process with various time lags, which provide, as a whole, a useful framework to diagnose degree of land degradation and rehabilitation. In this study, the net primary productivity (NPP) and water use efficiency (WUE), which are the proxies of vegetation productivity and eco-physiological properties related to species composition, were combined to develop an eco-physiological framework to assess the degree of land degradation in the Northeast-Asia dryland regions (NADR) from 1982 to 2012. Results from long-term trends analysis showed early, middle or late degradation stages occurred in northern grassland and central barren or sparsely vegetated regions, respectively, while the rehabilitation prevailed in eastern croplands and forest, southern, and western grassland. In contrast, short-term trend analysis illustrated the recent rehabilitation in mid-eastern Mongolia and Loess Plateau, which was unseen in long-term trend analysis. The spatial patterns and temporal changes of land degradation and rehabilitation could be explained partly by either or both natural and anthropogenic factors. Long-term drying and warming might induce land degradation in northern and central NADR, respectively, while the recovery projects and wetting conditions after 2000s promoted the land rehabilitation in Loess Plateau and mid-eastern Mongolia. Here, our NPP-WUE framework may contribute further conceptual development and rapid assessments on land degradation and rehabilitation in wide geographic regions.
英文关键词	land degradation Northeast-Asia dryland region NPP rehabilitation WUE
类型	Article
语种	英语
国家	South Korea ; Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000502287800001
WOS关键词	RESIDUAL TREND ANALYSIS ; QUANTITATIVE ASSESSMENT ; GRASSLAND DEGRADATION ; SOIL-MOISTURE ; VEGETATION ; DESERTIFICATION ; DROUGHT ; CHINA ; SATELLITE ; C-3
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
EI主题词	2019-12-12
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/311694
作者单位	1.Kangwon Natl Univ, Dept Environm Sci, Chunchon 200701, South Korea; 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Kang, Wenping,Kang, Sinkyu,Liu, Shulin,et al. Assessing the degree of land degradation and rehabilitation in the Northeast Asia dryland region using net primary productivity and water use efficiency[J],2020,31(7):816-827.
APA	Kang, Wenping,Kang, Sinkyu,Liu, Shulin,&Han, Youngji.(2020).Assessing the degree of land degradation and rehabilitation in the Northeast Asia dryland region using net primary productivity and water use efficiency.LAND DEGRADATION & DEVELOPMENT,31(7),816-827.
MLA	Kang, Wenping,et al."Assessing the degree of land degradation and rehabilitation in the Northeast Asia dryland region using net primary productivity and water use efficiency".LAND DEGRADATION & DEVELOPMENT 31.7(2020):816-827.