滴灌方式下枣树测墒点布设位置研究  

Study on the location of soil moisture measuring points on jujube trees under drip irrigation

作　　者：李侨 张华东 殷彩云[3] 孙三民[1,2] LI Qiao;ZHANG Huadong;YIN Caiyun;SUN Sanmin(College of Hydraulic and Architectural Engineering,Tarim University,Alar,Xinjiang 843300;Modern Agricultural Engineering Key Laboratory at Universities of Education Department of Xinjiang Uygur Autonomous Region,Alar,Xinjiang 843300;Agricultural Technology Extension Station of the First Division of Xinjiang Production and Construction Corps,Alar,Xinjiang 843300)

机构地区：[1]塔里木大学水利与建筑工程学院,新疆阿拉尔843300 [2]新疆维吾尔自治区教育厅普通高等学校现代农业工程重点实验室,新疆阿拉尔843300 [3]新疆生产建设兵团第一师农业技术推广站,新疆阿拉尔843300

出　　处：《塔里木大学学报》2025年第1期67-75,共9页Journal of Tarim University

基　　金：新疆生产建设兵团科技计划项目(2021CB021);新疆生产建设兵团第一师科技计划项目(2022XX01)。

摘　　要：土壤墒情是灌溉决策的前提,本研究通过田间试验观测了滴头附近4个不同采样点0~100 cm深度内土壤含水率的分布,采用R聚类分析、经典统计学t检验和地统计学方法确定了枣树在砂壤土中最佳测墒点布设位置。结果表明在不同灌溉量条件下,以滴头为中心坐标(0 cm,0 cm),不同深度处测定的土壤含水率给予位置坐标,其水平方向上监测点的布设不宜超过30 cm,根据地统计学克里金插值法确定T1处理最佳测墒点坐标为(25 cm,40 cm),其相对平均误差为0.69%;T2处理最佳测墒点坐标为(3 cm,73 cm),其相对平均误差为0.16%。最佳测墒点的确定其准确性和适用性较好,为枣田土壤水分传感器布设提供一定的参考。Soil moisture is a prerequisite for irrigation decision-making.In this study,the distribution of soil water content in the depth of 0-100 cm at four different sampling points near the drip head was observed through field experiments,and the optimal placement location of moisture measuring points for jujube trees in sandy loam soils was determined using R cluster analysis,classical statistics t-test and geostatistics.The results showed that under different irrigation amount conditions,the soil water content measured at different depths with the drip head as the center coordinate(0 cm,0 cm)gave the location coordinates,and the deploy ment of monitoring points in its horizontal direction should not be more than 30 cm, and the coordinates of the optimal moisture measuring point at the T1 treatment were determined to be( 25 cm, 40 cm) according to geostatistical kriging interpolation method, and its relative average error was 0.69%, and the coordinates of the optimal moisture measuring point at the T2 treatment were( 3 cm, 73 cm), and its relative average error was 0.16%. The accuracy and applicability of the best moisture measurement point are good, which provides a certain reference for the deployment of soil moisture sensors in date fields.

关 键 词：土壤墒情 监测点位置 显著性检验 枣树 

分 类 号：S274.3[农业科学—农业水土工程]