摘要
在陕西杨凌张家岗村覆盖玉米秸秆的冬小麦地进行了畦田规格和灌水技术要素对灌水效率和灌溉均匀度影响的田间试验，并SRFR406软件对秸秆覆盖畦灌的水流推进进行了数学模拟。结果表明，给出的地面灌溉模型及软件可较好的模拟秸秆覆盖畦田水流运动。畦田规格与技术要素的选择对灌水效率及灌水均匀度均有影响。在覆盖秸秆畦田以畦长小于50m，畦宽2～3m，单宽流量以6～8L／（m·s），坡度以3go～5‰为宜。为提高秸秆覆盖灌水效率，应加强耕作管理，消除反坡。
Field experiments were conducted to investigate the influences of border dimensions and irrigation variables on the performance of water advance under straw mulch,irrigation efficiency and distribution uniformity（DU）. The commercial software, namely SRFR406,was used to simulate the performance of water advance. The results showed that the code simulated the performance of water advance successfully. The border dimensions had influences to application efficiency,borders having 2-3 m wide , not more than 50 m long ,inflow rate of unit width is from 6 L/（m·s） to 8 L/（m · s）, and border slope is from 3‰ to 5‰ can get high application efficiency.
出处
《水土保持研究》
CSCD
北大核心
2007年第2期236-238,共3页
Research of Soil and Water Conservation
基金
国家"863"节水农业重大专项(2002AA2Z4211)
关键词
秸秆覆盖
地面灌溉
水流特性
灌水技术要素
灌溉效率
灌水均匀度
straw mulch
border irrigation
water flow performance
irrigation design and management variables
irrigation efficiency
distribution uniformity
