检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]新疆水利水电勘测设计研究院,新疆乌鲁木齐830000 [2]新疆农牧区水利规划总站,新疆乌鲁木齐830000
出 处:《水资源与水工程学报》2009年第4期80-82,86,共4页Journal of Water Resources and Water Engineering
摘 要:通过田间灌溉试验,研究了不同坡度、入畦流量和畦田规格对棉花灌水定额的影响,并通过SRFR模型进行模拟。结果表明:运用SRFR模型能较好地模拟地面灌溉的水流推进及消退过程,求得的结果与实测结果基本吻合,并得出灌水定额与灌水要素的简易关系式。畦田的坡度、规格及入畦流量对灌水定额的影响较大;在不同的畦田规格和入畦流量下,坡度越大对灌水定额(平均累积入渗量)的影响越大,尤其是反坡对灌水定额及水流推进与消退都有较大影响。为提高灌水效率,应加强耕作管理,消除反坡。Through the field irrigation tests, the influence of different slope, flow into border and the scale of border on the cotton irrigation quota was researched. The process was simulated by SRFR model. The results shown that SRFR model can better simulate the process of surface irrigation water advancing and fade awag. The results coincided with the measured results. The simple relationship of irrigation quota and irrigation elements was obtained. The slope scale and flow of border have greater impact on irrigation quota. The more the slope of border, the more the impact on irrigation quota. Especially the anti-slope had strong impact on irrigation quota, water advancing and fade away. In order to enhance the efficiency of irrigation, farming management should be strength and anti-slope be removed.
分 类 号:S275.3[农业科学—农业水土工程]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.3