干旱区生态环境知识资源中心(Arid): Bidirectional coupling between land-use change and desertification in arid areas: A study contrasting intracoupling and telecoupling

Arid

DOI	10.1002/ldr.4139
	Bidirectional coupling between land-use change and desertification in arid areas: A study contrasting intracoupling and telecoupling
	Li, Dajing; Xu, Erqi; Zhang, Hongqi
通讯作者	Xu, EQ ; Zhang, HQ (corresponding author), Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China.
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2022
英文摘要	In arid areas, land-use change interacts with desertification through water resources. Since water is flowing, the interaction between land-use change and desertification is not only local, but also regional. Previous studies have focused on the unidirectional influence of land-use change on desertification, but little research has quantitatively examined the bidirectional coupling, especially contrasting the difference between intracoupling (interactions within a sub-catchment) and telecoupling (interactions across different sub-catchments) within a hydraulically linked watershed. To solve this issue, we introduced a vector autoregressive model and designed a strategy from intracoupling to telecoupling to examine the interactions between them in the Tarim River. In intracoupling, a negative relationship was found in most areas. The increase of the land-use degree inhibits the desertification expansion, and this inhibition degree in the short term increases with the desertification degree. Conversely, the effect of desertification on land use is relatively smaller, and the feedback direction is related to land-use degree. The region with a relatively low farmland exploitation intensity shows negative feedback and vice versa. In telecoupling, a positive relationship was found: Increasing land-use degree in upstream sub-catchment aggravates the desertification expansion in midstream and downstream sub-catchments. Regarding the opposing unidirectional effect, after desertification expansion in midstream and downstream sub-catchments, humans will slow down land exploitation in the upstream sub-catchment, but this behaviour has a certain time lag. This study demonstrates that the special relationship found in telecoupling should be considered in the model development of desertification and land-use simulation.
英文关键词	desertification intracoupling land-use change Tarim River telecoupling vector autoregressive model
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000718653900001
WOS关键词	IMPULSE-RESPONSE ANALYSIS ; PCA-VAR MODEL ; ECONOMIC-GROWTH ; TARIM RIVER ; AGRICULTURAL LAND ; SUITABLE OASIS ; CLIMATE-CHANGE ; CO2 EMISSIONS ; WATER-USE ; DEGRADATION
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
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/2XILL650/367657
作者单位	[Li, Dajing; Xu, Erqi; Zhang, Hongqi] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing, Peoples R China; [Li, Dajing] Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Li, Dajing,Xu, Erqi,Zhang, Hongqi. Bidirectional coupling between land-use change and desertification in arid areas: A study contrasting intracoupling and telecoupling[J]. 中国科学院地理科学与资源研究所,2022.
APA	Li, Dajing,Xu, Erqi,&Zhang, Hongqi.(2022).Bidirectional coupling between land-use change and desertification in arid areas: A study contrasting intracoupling and telecoupling.LAND DEGRADATION & DEVELOPMENT.
MLA	Li, Dajing,et al."Bidirectional coupling between land-use change and desertification in arid areas: A study contrasting intracoupling and telecoupling".LAND DEGRADATION & DEVELOPMENT (2022).