干旱区生态环境知识资源中心(Arid): A New Method to Map Spring Irrigated Areas Using MODIS LST Products and Ancillary Data in an Agricultural District of Northwest China

Arid

DOI	10.3390/w14172628
	A New Method to Map Spring Irrigated Areas Using MODIS LST Products and Ancillary Data in an Agricultural District of Northwest China
	Lu, Yizhu; Song, Wenlong; Tian, Linjing; Chen, Xiuhua; Gui, Rongjie; Chen, Long
通讯作者	Song, WL
来源期刊	WATER
EISSN	2073-4441
出版年	2022
卷号	14 期号:17
英文摘要	Irrigation alleviates drought in croplands and maintains or increases crop yields. The accurate monitoring of irrigated areas is important to regional water resource management, food security, climate change, drought monitoring, and emergency disaster relief. Based on field experiments that demonstrate the feasibility of irrigated area mapping using land-surface temperature, we propose a method to map spring irrigation areas using historical meteorological data, main crop phenological characteristics, irrigation regimes, and MODIS land-surface temperature (LST) products. The distribution of irrigation intensity, spring irrigated areas (SIA, considering the irrigation intensity), and total area of spring irrigation (STIA, regardless of irrigation intensity) were monitored by the proposed method for the Donglei Irrigated District (Phase II) in northwestern China from 2011 to 2018. The spring irrigation of the study area was divided into three periods (16 January-23 February, 24 February-24 March, and 25 March-31 May). Then, the temperature threshold of the irrigated area in each period was determined by the diurnal temperature range (DTR) of the rain-fed plots and precipitation data; for the three periods, this was 12 degrees C, 15 degrees C, and 11 degrees C, respectively. The results showed that most of the croplands in the study area were irrigated once or twice. The SIA in most years varied between 55,900 and 73,100 ha, but in 2016, the irrigation area reached 100,200 ha. The STIA accounted for 60-70% of the irrigated area except 2016. The average accuracy of SIA monitoring was satisfactory and above 94% for years when sufficient and reliable data was available.
英文关键词	irrigated area spring irrigation remote sensing MODIS LST arid regions semi-arid regions
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:000851725800001
WOS关键词	RIVER-BASIN ; TIME-SERIES ; LANDSAT ; TEMPERATURE ; RESOLUTION ; US
WOS类目	Environmental Sciences ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/394824
推荐引用方式 GB/T 7714	Lu, Yizhu,Song, Wenlong,Tian, Linjing,et al. A New Method to Map Spring Irrigated Areas Using MODIS LST Products and Ancillary Data in an Agricultural District of Northwest China[J],2022,14(17).
APA	Lu, Yizhu,Song, Wenlong,Tian, Linjing,Chen, Xiuhua,Gui, Rongjie,&Chen, Long.(2022).A New Method to Map Spring Irrigated Areas Using MODIS LST Products and Ancillary Data in an Agricultural District of Northwest China.WATER,14(17).
MLA	Lu, Yizhu,et al."A New Method to Map Spring Irrigated Areas Using MODIS LST Products and Ancillary Data in an Agricultural District of Northwest China".WATER 14.17(2022).