1) agricultural catchment
农用集水
2) Rain-fed precipitation collcction
旱农集水
3) farmland water collection
农田集水
4) Rainwater harvesting agriculture
集水农业
1.
Research on progress of rainwater harvesting agriculture on the Loess Plateau of China;
黄土高原集水农业研究进展
2.
Rainwater harvesting agriculture, whose technologies have been applied on a large scale in developed countries, will benefit a lot to the rural development of China, especially in arid areas.
在实地调查基础上 ,依据集水农业技术的特点和要求 ,提出了集水农业技术评价指标体系 ,并且总结了河南省卫辉市集水农业技术体系实施中的 5种模式 ,运用多目标综合评价方法对 5种技术模式进行了综合评价 ,结果得出“山坡、道路、庭院集水和地膜覆盖集水区 +水窖 +低压管道滴灌 +地膜覆盖冬小麦、玉米田免耕秸秆覆盖和玉米、麦田秸秆还田”技术模式效果最好 ,可以认为是同类地区发展集水农业的最佳模式。
3.
Through the systematic analyse of the background such as natural geography,social economic and rainwater catchment condition, on the basis of experiment, the overall plan and concrete implent scheme of rainwater harvesting agriculture of Daoshifen such as rainwater catchment engineering system,agronomy engineering system and social economic development system etc.
通过对河南省卫辉市道士坟村的自然地理背景、社会经济背景和集水现状的系统分析,在试验的基础上,提出了在道士坟村实施集水农业的总体规划和具体方案。
5) agricultural water consumption
农业用水
1.
Based on the conception of rational volume of ecological water consumption,the total water consumption of Beijing City was divided into industrial water consumption,agricultural water consumption,domestic water consumption,tertiary industrial water consumption,and eco-environmental water consumption,and the benefits of water consumption of different parts were calculated.
在“经济合理的生态用水量”概念及计算模型的基础上,以北京市为例,把该市的用水分为工业用水、农业用水、生活用水、第三产业用水、生态环境用水5个部分,分别计算各部分的用水效益,通过模型计算得出了符合北京市水资源实际情况的水资源分配数量。
2.
Based on abundant statistical data,the history of agricultural water consumption,especially irrigation water consumption in China is described and analyzed in this paper.
我国农业用水的大量增加发生在1949~1980年之间,与我国人口和粮食产量的快速增加紧紧相随。
3.
Study on the trend of agricultural water consumption and its influence factors is very important for the future work of saving water in Beijing.
对1986-2007年北京市农业用水情况和影响其变化的相关指标进行主成分分析。
6) agricultural water
农业用水
1.
Compensation mechanism of agricultural water transfer;
农业用水转化补偿机制研究
2.
Realization of sustainable management of agricultural water supply in Beijing with ET technique of remote sensing monitoring;
应用遥感监测ET技术实现北京市农业用水的可持续管理
3.
Existing circumstance analysis and countermeasure of agricultural water to the northern Nen River diversion project line;
北部引嫩工程沿线农业用水现状分析及对策
补充资料:地下水集水构筑物
地下水集水构筑物
groundwater collecting structure
d*x旧shui Jishu一gouzhuwu地T水集水构筑物(groundwater eolleetingstruct盯e)为地下水开采构筑的从含水层中采取地下水的设施。地下水集水构筑物分垂直和水平两类。垂直集水构筑物有管井、大口井等一水平集水构筑物有渗渠。也有二者结合使用的集水构筑物,如辐射井。 管井采用较多的地下水垂直集水构筑物。用钻机钻入含水层下套管和过滤器(见管井施工)成井。它适用于埋藏较深、厚度较大的含水层。井管材料一般采用钢管、铸铁管、混凝土管或塑料管等。井的直径和探度根据水文地质条件和井的出水量等因素确定。通常井的直径在。.sm以内,井的深度在几十米至几百米不等。井管由井壁管、过滤器和沉淀管组成。井壁管下泵部位的内径至少比抽水泵吸水设备的外径大0.05m。过滤器外径按允许入管流速复核,其计算公式为: 。、Q D派-一生二二 一一冗乙nVg式中D为过滤器外径,m;Q为设计出水量,m“/s;L为过滤器工作部分长度,m;n为过滤器表面有效孔隙率;V:为允许入管流速,m/s。过滤器类型可根据含水层的性质选用(见表)。 填砾过滤器的填砾规格可按下列规定确定:(l)砂类含水层,DS。=(6一8)ds。;(2)砾类土含水层,当dZ。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条