由移动式遮雨棚、76个地下测坑及2台大型蒸渗仪三部分组成。测坑设有土壤样本采集孔和数据采集连线。蒸渗仪系统由测量、数传输和终端显示3部分组成,用来测量作物蒸发蒸腾量或裸土蒸发量。系统被世界土壤科学大百科全书收录。
主要用途:植物高效用水调控机理与非充分灌溉理论研究;植物需水模型及SPAC理论;土壤水肥盐迁移与植物水肥盐环境联合调控;作物需水信息采集与精量控制灌溉技术;人工模拟环境;作物的模拟降雨、微聚水、控水试验;劣质水资源化与利用技术研究。
Test Site for Field Water Transformation
This experimental site has three main components: movable rain shelter, underground measuring pits, and two giant lysimeters.
Main uses:
① to investigate the regulating mechanisms of crop water use efficiency (WUE) and principles of deficit irrigation;
② to study the models of plant water requirement and theories of SPAC (soil plant atmosphere continuum) system;
③ to research the transports of water, fertilizers, and salts in soil profile and the joint regulation of plant water, fertilizer, and salt conditions;
④ to develop new technologies for harvesting information about crop water requirement and for precisely controlled irrigation;
⑤ to artificially imitate special natural environment;
⑥ to conduct experiments on mimic rainfall, micro-scale water collecting, and water controlling in the cropping system;
to explore the possibility for reclamation and reuse of poor-quality water.