光伏发电板下芦荟需水规律及灌溉制度试验研究

A Study of the Water Requirement and Irrigation System of Aloe Nobilis Photovoltaic Panels

为有效利用光伏电站站台水土资源,探究光伏发电板下种植适宜经济作物,在云南省楚雄州元谋县天子山光伏发电站进行光伏发电板下种植芦荟的试验研究。通过现场田间试验与室内模型试验相结合,分析确定了当地站台条件下芦荟需水量、需水规律及不同水文年灌溉制度。试验结果表明:芦荟日需水量1.30~3.62 mm/d,作物系数0.69~1.21,峰值均出现在8月份;芦荟3月至12月需水量659.71 mm,需水关键期为7月、8月;灌水定额为20 mm,25%、50%、75%、95%典型水文年灌溉定额分别为490、480、480、510 mm。该试验结果可为光伏电站种植芦荟提供灌溉指导。

In order to promote the efficient use of the platform of photovoltaic power and explore the suitable economic crops under the photovoltaic panels, study the water requirement and irrigation system of Aloe nobilis in Yunnan Chuxiong Yuanmou Tianzishan Photovoltaic Power Station. Through the combination of model test and field experiment, the water requirement and irrigation system of Aloe nobilis under local conditions have been obtained. The results show that water requirement intensity is between 1.30-3.62 mm/d,the peak appears in August; crop coefficient of Aloe nobilis is between 0.69- 1.21 ,the peak appeared in August. Water requirement of Aloe nobilis during March to December is 659.71 mm. Critical period of water requirement for July and August, irrigation quota is 20 mm. 25%, 50%, 75%, 95% typical hydrological year irrigation quotas are 490, 480, 480, 510 mm.