干旱区生态环境知识资源中心(Arid): Costs and benefits of satellite-based tools for irrigation management

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DOI	10.3389/fenvs.2015.00052
	Costs and benefits of satellite-based tools for irrigation management
	Vuolo, Francesco; Essl, Laura; Atzberger, Clement
通讯作者	Vuolo, F
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
EISSN	2296-665X
出版年	2015
卷号	3
英文摘要	This paper presents the results of a collaborative work with farmers and a cost-benefit analysis of geospatial technologies applied to irrigation water management in a semi-arid agricultural area in Lower Austria. We use Earth observation (Eo) data to estimate crop evapotranspiration (Et) and webGlS technologies to deliver maps and irrigation advice to farmers. The study reports the technical and qualitative evaluation performed during a demonstration phase in 2013 and provides an outlook to future developments. The calculation of the benefits is based on a comparison of the irrigation volumes estimated from satellite vs. the irrigation supplied by the farmers. In most cases, the amount of water supplied was equal to the maximum amount of water required by crops. At the same time high variability was observed for the different irrigation units and crop types. Our data clearly indicates that economic benefits could be achieved by reducing irrigation volumes, especially for water-intensive crops. Regarding the qualitative evaluation, most of the farmers expressed a very positive interest in the provided information. In particular, information related to crop ET was appreciated as this helps to make better informed decisions on irrigation. The majority of farmers (54%) also expressed a general willingness to pay, either directly or via cost sharing, for such a service. Based on different cost scenarios, we calculated the cost of the service. Considering 20,000 ha regularly irrigated land, the advisory service would cost between 2.5 and 4.3 (sic)/ha per year depending on the type of satellite data used. For comparison, irrigation costs range between 400 and 1000 /ha per year for a typical irrigation volume of 2000 cubic meters per ha. With a correct irrigation application, more than 10% of the water and energy could be saved in water-intensive crops, which is equivalent to an economic benefit of 40-100 (sic)/ha per year.
英文关键词	earth observation evapotranspiration webGIS mobile application irrigation advisory service cost-benefit
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000458082100024
WOS关键词	HIGH-RESOLUTION MISSION ; CROP COEFFICIENTS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/331483
作者单位	[Vuolo, Francesco; Essl, Laura; Atzberger, Clement] Univ Nat Resources & Life Sci, Inst Surveying Remote Sensing & Land Informat, Peter Jordan Str 82, A-1190 Vienna, Austria
推荐引用方式 GB/T 7714	Vuolo, Francesco,Essl, Laura,Atzberger, Clement. Costs and benefits of satellite-based tools for irrigation management[J],2015,3.
APA	Vuolo, Francesco,Essl, Laura,&Atzberger, Clement.(2015).Costs and benefits of satellite-based tools for irrigation management.FRONTIERS IN ENVIRONMENTAL SCIENCE,3.
MLA	Vuolo, Francesco,et al."Costs and benefits of satellite-based tools for irrigation management".FRONTIERS IN ENVIRONMENTAL SCIENCE 3(2015).