干旱区生态环境知识资源中心(Arid): The Detecting of Irrigated Croplands Changes in 1987-2015 in Zhangjiakou

Arid

DOI	10.1109/ACCESS.2021.3092408
	The Detecting of Irrigated Croplands Changes in 1987-2015 in Zhangjiakou
	Zhu, Zijuan; Zhang, Zengxiang; Zuo, Lijun; Sun, Feifei; Pan, Tianshi; Li, Jun; Zhao, Xiaoli; Wang, Xiao
通讯作者	Zuo, LJ (corresponding author), Chinese Acad Sci, Aerosp Informat Res Inst, Beijing 100093, Peoples R China.
来源期刊	IEEE ACCESS
ISSN	2169-3536
出版年	2021
卷号	9 页码:96076-96091
英文摘要	The distribution of irrigated and rained croplands has a large impact on agricultural production and ecological systems. Zhangjiakou, which is the water conservation area of Jing-jin-ji agglomeration and the host city for the 2022 Winter Olympic Games, has large irrigated croplands and a fragile ecological environment. The methods of sample selection based on spectral analysis and partitioned extraction of irrigated croplands were proposed with medium-high-resolution images, then the spatiotemporal changes of irrigated and rainfed croplands were explored in Zhangjiakou. The growing season time series curves of normalized difference vegetation index (NDVI) and normalized difference water index (NDWI) based on Landsat images were employed to distinguish irrigated and rainfed croplands in 1987, 2000, and 2015. Through transfer matrix analysis of the three stages of classification results, it was found that the irrigated croplands of Bashang, a semi-arid region, increased sharply (66025 hectares, 7.55%), while the irrigated croplands of Baxia, a mountainous region with small basins and plains, decreased slightly (-8239 hectares, -0.60%). From the perspective of temporal changes, irrigated croplands grew rapidly in the early stage and slowly decline in the later stage, peaking at 377,117 hectares in 2000. According to the analysis, the decline of irrigated croplands was due to a project employed to quit irrigation and return to drought, and further analyses should be conducted in order to realize the rational utilization of water resources and guarantee ecological security. This paper is helpful in supporting extraction methods of irrigated croplands for semi-dry and arid areas, especially when historical samples are lacking. It is also helpful for policy adjustments of agricultural structure of Zhangjiakou and other similar areas.
英文关键词	Irrigation Remote sensing Water resources Water pollution Indexes Time series analysis Earth Irrigated croplands Zhangjiakou spatia-temporal change time series
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:000673657600001
WOS关键词	DIFFERENCE WATER INDEX ; RESOLUTION ; CHINA ; AGRICULTURE ; LANDSAT ; AREAS ; BALANCE ; MODIS ; CITY ; MAP
WOS类目	Computer Science, Information Systems ; Engineering, Electrical & Electronic ; Telecommunications
WOS研究方向	Computer Science ; Engineering ; Telecommunications
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363555
作者单位	[Zhu, Zijuan; Zhang, Zengxiang; Zuo, Lijun; Sun, Feifei; Pan, Tianshi; Zhao, Xiaoli; Wang, Xiao] Chinese Acad Sci, Aerosp Informat Res Inst, Beijing 100093, Peoples R China; [Zhu, Zijuan; Pan, Tianshi] Univ Chinese Acad Sci, Beijing 100093, Peoples R China; [Li, Jun] Zhangjiakou Acad Agr Sci, Zhangjiakou 075000, Heibei, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Zijuan,Zhang, Zengxiang,Zuo, Lijun,et al. The Detecting of Irrigated Croplands Changes in 1987-2015 in Zhangjiakou[J],2021,9:96076-96091.
APA	Zhu, Zijuan.,Zhang, Zengxiang.,Zuo, Lijun.,Sun, Feifei.,Pan, Tianshi.,...&Wang, Xiao.(2021).The Detecting of Irrigated Croplands Changes in 1987-2015 in Zhangjiakou.IEEE ACCESS,9,96076-96091.
MLA	Zhu, Zijuan,et al."The Detecting of Irrigated Croplands Changes in 1987-2015 in Zhangjiakou".IEEE ACCESS 9(2021):96076-96091.