干旱区生态环境知识资源中心(Arid): Effects of Drought on Vegetation Productivity of Farmland Ecosystems in the Drylands of Northern China

Arid

DOI	10.3390/rs13061179
	Effects of Drought on Vegetation Productivity of Farmland Ecosystems in the Drylands of Northern China
	Zhu, Xiufang; Liu, Ying; Xu, Kun; Pan, Yaozhong
通讯作者	Liu, Y (corresponding author), Beijing Normal Univ, Inst Remote Sensing Sci & Engn, Fac Geog Sci, Beijing 100875, Peoples R China.
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2021
卷号	13 期号:6
英文摘要	Previous research on the effects of drought on vegetation productivity seldom distinguished the different responses of vegetation ecosystems to drought under different management practices and different land use systems. Studies investigating whether irrigation can buffer the negative impacts of drought on vegetation usually used discontinuous yield data in distribution. In this study, the trends in drought and vegetation productivity in farmlands in the drylands of northern China (DNC) from 2000 to 2018 were studied using the self-calibrated Palmer drought severity index (scPDSI) and enhanced vegetation index (EVI). The differences in the impact of drought on vegetation productivity in irrigated farmland, rainfed farmland, and natural vegetation areas were quantified. The results showed that the growing season scPDSI and EVI showed an increasing trend from 2000 to 2018. Significant correlations between drought anomalies and EVI anomalies were found in both arid drylands and semi-arid drylands. In addition, irrigation mitigated 59.66% of the negative impact caused by drought on irrigated farmland EVI in the growing season. The impact of drought on irrigated farmland EVI in the growing season was 19.98% lower than that on natural vegetation EVI. The impact of drought on natural vegetation EVI was 49.59% lower than that on rainfed farmland EVI. The results of this study refine the vegetation response to drought under different land management practices and land use patterns.
英文关键词	drought irrigation farmland ecosystem EVI
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000651966400001
WOS关键词	IMPACTS ; RESPONSES ; GROWTH ; HEAT ; REDUCTION ; BIOMES ; INDEX
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368960
作者单位	[Zhu, Xiufang] Beijing Normal Univ, State Key Lab Remote Sensing Sci, Beijing 100875, Peoples R China; [Zhu, Xiufang] Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing 100875, Peoples R China; [Zhu, Xiufang] Beijing Normal Univ, Key Lab Environm Change & Nat Disaster, Minist Educ, Beijing 100875, Peoples R China; [Zhu, Xiufang; Liu, Ying; Xu, Kun; Pan, Yaozhong] Beijing Normal Univ, Inst Remote Sensing Sci & Engn, Fac Geog Sci, Beijing 100875, Peoples R China; [Pan, Yaozhong] Qinghai Normal Univ, Sch Geog Sci, Xining 810016, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Xiufang,Liu, Ying,Xu, Kun,et al. Effects of Drought on Vegetation Productivity of Farmland Ecosystems in the Drylands of Northern China[J]. 北京师范大学,2021,13(6).
APA	Zhu, Xiufang,Liu, Ying,Xu, Kun,&Pan, Yaozhong.(2021).Effects of Drought on Vegetation Productivity of Farmland Ecosystems in the Drylands of Northern China.REMOTE SENSING,13(6).
MLA	Zhu, Xiufang,et al."Effects of Drought on Vegetation Productivity of Farmland Ecosystems in the Drylands of Northern China".REMOTE SENSING 13.6(2021).