干旱区生态环境知识资源中心(Arid): Environmental impact assessment of water-saving irrigation systems across 60 irrigation construction projects in northern China

Arid

DOI	10.1016/j.jclepro.2019.118883
	Environmental impact assessment of water-saving irrigation systems across 60 irrigation construction projects in northern China
	Chen, Xiuzhi 1; Thorp, Kelly R.2; van Oel, Pieter R.3; Xu, Zhenci 4; Zhou, Bo 1; Li, Yunkai 1
通讯作者	Li, Yunkai
来源期刊	JOURNAL OF CLEANER PRODUCTION
ISSN	0959-6526
EISSN	1879-1786
出版年	2020
卷号	245
英文摘要	With increasing water shortages partly due to increasing demands, water has become a globally relevant issue especially in arid and semi-arid regions. Water-saving irrigation technologies provide new ways for improving the efficiency of water use for agricultural production. Although efficient irrigation management could lead to water savings and increased yields, the water consumption and greenhouse gas emissions during the construction of irrigation projects also puts pressure on environmental health. However, little research has considered the environmental impact of the construction process and materials. To fill this gap, the water footprint (WF) and carbon footprint (CF) of irrigation projects were calculated using life cycle assessment (LCA) methods. The results for sixty typical irrigation projects in northern China showed that the WF accounted for only 0.2-1.5% of the total agricultural WF and 2.3 -8.8% of the water saved. When the WF to construct modern irrigation systems is not considered, the water-saving effects of these systems are generally overestimated by 13%. The CF for irrigation projects was 42.0% of all agricultural activities. Due to the difficulty to obtain detailed information for irrigation projects, this paper established the relationship between financial investment or area and CF for three kinds of irrigation projects. It provided a simple quantitative method for assessing its environmental impacts. By comparing environmental impacts and production benefits under different scenarios, using drip irrigation over the long-term could increase crop yield and reduce water footprint, but carbon footprint was increased at the same time. This study suggests that it is necessary to assess the environmental impacts of irrigation construction projects from a life cycle perspective rather focusing only on yield increases and reductions in irrigation amounts. (C) 2019 Elsevier Ltd. All rights reserved.
英文关键词	Irrigation project Life cycle assessment Water footprint Carbon footprint Environmental impact Scenario
类型	Article
语种	英语
国家	Peoples R China ; USA ; Netherlands
收录类别	SCI-E
WOS记录号	WOS:000503739400048
WOS关键词	SUBSURFACE DRIP IRRIGATION ; GREENHOUSE-GAS EMISSIONS ; CARBON FOOTPRINT ; ECONOMIC-EVALUATION ; PRODUCTIVITY ; AGRICULTURE ; CONSUMPTION ; CULTIVATION ; EFFICIENCY ; SUNFLOWER
WOS类目	Green & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
WOS研究方向	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
EI主题词	2020-02-01
来源机构	中国农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312769
作者单位	1.China Agr Univ, Coll Water Resource & Civil Engn, 17 Qinghua East Rd, Beijing 100083, Peoples R China; 2.ARS, USDA, 21881 N Cardon Ln, Maricopa, AZ 85138 USA; 3.Wageningen Univ, Water Resources Management Grp, POB 47, NL-6700 AA Wageningen, Netherlands; 4.Univ Michigan, Sch Environm & Sustainabil, 500 S State St, Ann Arbor, MI 48109 USA
推荐引用方式 GB/T 7714	Chen, Xiuzhi,Thorp, Kelly R.,van Oel, Pieter R.,et al. Environmental impact assessment of water-saving irrigation systems across 60 irrigation construction projects in northern China[J]. 中国农业大学,2020,245.
APA	Chen, Xiuzhi,Thorp, Kelly R.,van Oel, Pieter R.,Xu, Zhenci,Zhou, Bo,&Li, Yunkai.(2020).Environmental impact assessment of water-saving irrigation systems across 60 irrigation construction projects in northern China.JOURNAL OF CLEANER PRODUCTION,245.
MLA	Chen, Xiuzhi,et al."Environmental impact assessment of water-saving irrigation systems across 60 irrigation construction projects in northern China".JOURNAL OF CLEANER PRODUCTION 245(2020).