摘要
为合理确定样点灌区数量,减少用水量统计的工作,提高用水量统计推算的精度,研究提出了一种农田用水量推算工作中样点灌区的选取方法,确定了样点灌区的选取原则、基本要求和选取方法。该方法要求,设计灌溉面积667 hm^2及以上的所有大中型灌区水量直接填报,设计灌溉面积667 hm^2以下的小型灌区水量需选取样点灌区进行推算;小型灌区根据取水类型分别进行样点灌区选取,纯井灌区根据最低数量要求进行样点灌区选取,地表水源灌区根据"样点灌区数量初步确定-样点灌区最低数量要求-样点灌区数量最终确定"3个阶段最终确定;根据该方法,全国按照灌溉分区共需布设2 218个小型地表水源样点灌区和602个小型地下水源灌区。
In order to determine the number of sampling irrigation areas reasonably, by reducing the workload of water consumption statistics and improving the accuracy of water consumption statistics, this study proposes a method of selecting sampling irrigation areas in the calculation of agricultural water consumption, and determines the selection principles, basic requirements and selection methods of sampling irrigation areas. This method requires that all large and medium-sized irrigation areas should be calculated directly, and that the small-sized irrigated areas should be calculated by selecting the irrigated area samples. The small-sized sample irrigation areas are selected according to the water intake type, the well irrigation areas were selected according to the minimum quantity requirements, and the surface water source irrigation areas are determined according to the three stages of "preliminary determination of the number of sample irrigation areas-minimum number of sample irrigation areas-final determination of the number of sample irrigation areas". According to this method, a total of 2218 small surface water source sample irrigation areas and 602 small-well irrigation areas should be arranged according to the irrigation zones.
作者
沈莹莹
陈梦婷
崔静
张绍强
罗玉峰
SHEN Ying-ying;CHEN Meng-ting;CUI Jing;ZHANG Shao-qiang;LUO Yu-feng(China Irrigation and Drainage Development Center,Beijing 100054,China;State Key Laboratory of Water Resources and Hydropower Engineering Science,Wuhan University,Wuhan 430072,China)
出处
《中国农村水利水电》
北大核心
2020年第4期112-115,共4页
China Rural Water and Hydropower
基金
国家重点研发计划项目(2018YFC0407703)。
关键词
样点灌区
灌溉用水量
样点选择
sample irrigation areas
irrigation water consumption
sample selection
