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当前位置: 首页 > 文章 > 基于投影寻踪分类模型的水稻控制灌溉经济效益评价 湖北农业科学 2013,52 (21) 276-279
Position: Home > Articles > The Evaluation of Economic Benefit on the Controlled Irrigation of Paddy Rice Based on Projection Pursuit Model Hubei Agricultural Sciences 2013,52 (21) 276-279

基于投影寻踪分类模型的水稻控制灌溉经济效益评价

作  者：
王雪;闫玉民;杨俊鹏
单  位：
辽宁水利职业学院水利系
关键词：
投影寻踪;经济效益;水稻;控制灌溉;常规灌溉
摘  要：
以产量、肥料成本、灌溉成本和水分生产效率为评价指标,基于投影寻踪模型,对水稻控制灌溉进行经济效益评价。结果表明,模型所计算经济效益较优的处理为CM、CH和CL,均为控制灌溉处理,其中CM投影值最大,经济效益最佳;控制灌溉+中等施肥量(CM处理)产量最高,达到9 418.5 kg/hm2;与常规灌溉相比,每公顷可节水606元;且水分生产效率最高,为2.02 kg/m3。研究成果可为水稻控灌技术的推广提供理论和实践依据。
译  名：
The Evaluation of Economic Benefit on the Controlled Irrigation of Paddy Rice Based on Projection Pursuit Model
作  者：
WANG Xue;YAN Yu-min;YANG Jun-peng;Department of Water Conservancy, Higher Vocational Institute of Shenyang Agricultural University;
关键词：
projection pursuit;;economic benefit;;paddy rice;;controlled irrigation;;normal irrigation
摘  要：
The yield, fertilizer cost, irrigation cost and water productivity were selected as the evaluation indexes to evaluate the economic benefit of the controlled irrigation of paddy rice based on the projection pursuit model. Results showed that the preferable treatments were CL, CM and CH, which were all treated by irrigation controlling, the projection value of CM was maximum, and the economic benefit of CM was optimum; controlled irrigation+ moderate fertilizer amount(CM) obtained the highest yield, recorded as 627.9 kg / acreage; in comparison with the normal irrigation, CM could save 40.4 yuan of irrigation cost per acreage; meanwhile, the water productivity of CM was also the highest, with the value of 2.02 kg / m3. The study findings could provide theoretical and practical basis for the popularization of controlled irrigation technique of paddy rice.

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