| Evaluation and optimal selection of water\|saving irrigation mode for spring maize in West Liao River Basin |
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| DOI：10.7606/j.issn.1000-7601.2018.03.07 |
| Key Words: water saving irrigation benefit analysis comprehensive evaluation shallow buried no mulch drip irrigation hierarchy analy sismethod |
| Author Name | Affiliation | | QI Ying-long | Institute of Resources and Environment and Testing Technology of Inner Mongolia Academy of Agricultural and Animal Husbandry Science, Hohhot, Inner Mongolia 010031, China；Water Conservancy and Civil Engineering College of Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China | | LI Bin | Institute of Resources and Environment and Testing Technology of Inner Mongolia Academy of Agricultural and Animal Husbandry Science, Hohhot, Inner Mongolia 010031, China | | ZHAO Ju | Institute of Resources and Environment and Testing Technology of Inner Mongolia Academy of Agricultural and Animal Husbandry Science, Hohhot, Inner Mongolia 010031, China | | ZHANG Jian-hua | Institute of Agricultural Science of Tongliao, Tongliao, Inner Mongolia 028000 | | LI Min | Baotou Normal College, Baotou， Inner Mongolia 014030, China | | LI Jing-wei | Institute of Water Conservancy Science of Inner Mongolia Municipality, Hohhot, Inner Mongolia 010020, China | | BAO Eerdunga | Institute of Agricultural Science of Tongliao, Tongliao, Inner Mongolia 028000 | | FENG Ye | Institute of Agricultural Science of Tongliao, Tongliao, Inner Mongolia 028000 | | YANG Yu-fen | Jiefangzha Management Bureau of Hetao Irrigation District in Inner Mongolia, Bayannur, Inner Mongolia 015400, China |
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| Abstract: |
| In order to explore the suitable water saving irrigation model for spring maize in West Liaohe River Basin, using the benefits of “economy-technology-environment” as evaluating criteria for the four water-saving irrigation modes as low pressure pipe border irrigation, drip irrigation under plastic film mulch, shallow buried no mulch drip irrigation and horizontal mobile sprinkler irrigation,has established the hierarchical analysis model,improved the classical hierarchy analysis method by introduction of the data obtained by project research and investigation,combined with the expert fuzzy language set,made out the systemic comprehensive evaluation for the different irrigation modes.The results showed that: Low pressure pipe border irrigation could save investment only on agricultural capital and irrigation materials, but it needs much longer time and high cost for artificial and electric power input during irrigation process, also need higher cost for agricultural machinery for top dressing, so the score of economic benefit was the lowest (0.2613). The drip irrigation under film mulch comparing with shallow buried drip irrigation, possessed much better water-saving effect, and comparing with the horizontal mobile sprinkler irrigation,possessed more convenience for operation and maintenance and adaptability for terrain application.So the comprehensive score of technical effect was the highest(0.0671).The calculated results of weight vector and subordinative function value for each hierarchy showed that the residual membrane pollution has caused great attention and worry by experts and scholars, urgent need the theoretical and technological research and development toreply.The shallow buried no mulch drip irrigation possessed rather high economic benefit score(0.3692) and environmental benefit score(0.577),so the totalscore was sorted the first and can be obtainrather good comprehesive benefits. So it was suggested that can be appropriately popularized and applied in this area. |
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