绿地精准灌溉控制系统设计与最优灌溉量分析"  

Green Land Precision Irrigation Control System and Analysis of Optimal Irrigation Amount

作　　者：赵燕东[1] 马扬飞[1] 王勇志[1] 

机构地区：[1]北京林业大学工学院,北京100083

出　　处：《农业机械学报》2012年第3期46-50,56,共6页Transactions of the Chinese Society for Agricultural Machinery

基　　金：国家自然科学基金资助项目(30671715);北京市教育委员会共建项目建设计划科学研究与科研基地建设项目(2008BJKY01)

摘　　要：为了提高绿地精准灌溉控制系统中两点法测量土壤墒情的测量精度,通过对土壤水分传感器一体化的研究,设计了双层复合土壤水分传感器,相比于传统的两个传感器策略,使用该复合型土壤水分传感器测量结果更加精确,且降低了能耗。为了获得绿地作物的最优灌溉量,确保灌溉水不浪费且能满足作物正常生长的需求,以高羊茅为例,通过实验,在综合分析高羊茅生长需求、土壤墒情和部分气象资料的基础上,得出适合于高羊茅的最优灌溉量为12 mm。With the aim to raise measure accuracy of double-depth measuring water content tactics in precision irrigation control system, by integration research of water content sensor, dual-layer composite soil water content sensor was worked out. Compared with the traditional two sensors＇ tactics, using dual-layer composite soil water content sensor, the measurement result can be more accurate, and energy consumption was reduced. In order to achieve optimal irrigation amount of green land plant, ensure the irrigation not be wasted and satisfy plant＇s normal need, the experiments were carried out by taking tall fescue for an example. On the basis of aggregately analyzing the tall fescue＇s growth requirement, soil water content and parts of meteorological dates, the result was gained, that is the optimal irrigation amount of tall fescue is 12 mm.

关 键 词：绿地 精准灌溉 控制系统 最优灌溉量 双层复合土壤水分传感器 

分 类 号：S274[农业科学—农业水土工程]