膜上灌水技术的生态环境效应研究  

Ecological environment effect of irrigation with mulching

作　　者：李援农[1] 刘玉洁[2] 李芳红[2] 费良军[1] 

机构地区：[1]西安理工大学水资源研究所,西安710048 [2]西北农林科技大学水利与建筑工程学院,杨凌712100

出　　处：《农业工程学报》2005年第11期60-63,共4页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家863计划现代节水农业技术及新产品专项(2002AA2Z4041);陕西省重点实验室重点科研计划项目(03JS041)

摘　　要：该文依据膜上灌水技术室内外试验数据,分析探讨了膜上灌水对作物生长要素中土壤水、肥、气、热环境的影响。研究结果表明:膜上灌水技术与传统的沟畦灌相比,地膜覆盖灌水法在减少地面蒸发,实现节水的同时,可调节土壤温度,减少灌溉水的深层渗漏和保持土壤肥力,提高了水分利用率,增加作物产量。膜上灌水不仅节约用水,同时也为作物的生长发育创造了适宜的根部生态环境。Based on inter and extra-ventricular experiment data, the effects of irrigation with mulching on the plant living factors, such as water, soil fertility, air and warm were analyzed. Compared with the traditional irrigation, the irrigation with mulching reduces the soil evaporation, saves water, regulates the soil temperature, reduces water infiltration and keeps the soil fertility. The water use efficiency and crop yield increased under the irrigation with mulching. The irrigation method with mulching not only saves water, but also creates proper root ecosystem environment for crop growth.

关 键 词：膜上灌水 节水 生态环境效应 

分 类 号：S275.6[农业科学—农业水土工程]