基于无人船走航监测技术的区域农用地灌溉用水现状调研

Investigation of Current Situation of Irrigation Water in Regional Agricultural Land Based on Unmanned Ship Navigation Monitoring Technology

对辖区内的19个中型灌区灌溉水进行采样测试,同时采用无人船对灌区河道进行走航监测,结合走航数据的无线传输,最后通过软件对获取的数据与地图信息进行拟合,直观地将无人船走航普查检测的监测结果通过一张图进行展示,可以直观地发现问题河涌的潜在影响因素。结果表明:溉区灌溉水的水质总体良好,未发现重金属超标的点位,超标项目集中在粪大肠菌群、全盐量、氯化物;从综合污染指数来看,各灌区的范围为0.54~3.8,15个灌区属尚清洁水平,4个属污染水平;考虑到辖区地理位置及海水倒灌的影响,若不考虑全盐量、氯化物的影响,19个灌区的综合污染指数评价均属尚清洁水平,基本可以满足居民灌溉需求。

The irrigation water of 19 medium-sized irrigation areas within the jurisdiction was sampled and tested.At the same time,unmanned ships were used to monitor the navigation of the irrigation area watercourses.Combined with the wireless transmission of the navigation data,the acquired data and map information were finally matched by software,and the monitoring results of the unmanned ship navigation survey and detection were visually displayed through a map.The potential influence factors of the problem stream can be found intuitively.The results showed that the quality of irrigation water in the irrigation area was generally good,and no heavy metal exceeding the standard was found.The exceeding items were concentrated in fecal coliform,total salt and chloride.From the comprehensive pollution index,the range of each irrigation area is 0.54~3.8,15 irrigation areas are still clean,and 4 are pollution level.Considering the geographical location of the area and the impact of seawater reverse irrigation,if the impact of total salt and chloride is not considered,the comprehensive pollution index of the 19 irrigation areas is evaluated to be still clean.It can basically meet the irrigation needs of residents.