红壤地区集流桶机械搅拌含沙量测量误差研究  

Measurement Error of Sediment Concentration in Mechanical Mixing of Collecting Bucket in Red Soil Area

作　　者：张龙 曹智 陈晓安 喻荣岗 ZHANG Long;CAO Zhi;CHEN Xiaoan(Jiangxi Key Laboratory of Soil Erosion and Control,Jiangxi Institute of Soil and Water Conservation,Nanchang,Jiangxi,330029,China;Jiangxi Lvchuan Technology Development Co.,Ltd.,Jiujiang,Jiangxi,332000,China)

机构地区：[1]江西省水土保持科学研究院江西省土壤侵蚀与防治重点实验室,江西南昌330029 [2]江西绿川科技发展有限公司,江西九江332000

出　　处：《中国水土保持》2021年第9期54-56,I0007,共4页Soil and Water Conservation in China

基　　金：江西省水利科技项目(201820BZ03,201921YBKT23)。

摘　　要：在江西水土保持生态科技园径流小区选择红壤作为研究对象,通过6个不同含沙量(1、5、10、50、100、300 kg/m^(3))及3个不同水深(30、60、90 cm)条件下的径流桶机械搅拌法模拟试验,探究机械搅拌法的含沙量测量精度,以及含沙量与水深对机械搅拌法含沙量测量误差的影响。结果表明:在试验设计水平下,机械搅拌法测量的平均相对误差为13.49%~31.19%;含沙量对机械搅拌法测量的平均相对误差存在较大影响,水深对机械搅拌法的测量精度影响不大。试验结果表明,机械搅拌法操作简单易行、误差稳定,在红壤地区集流桶泥沙观测领域有良好的应用前景。The paper selected red soil from runoff plots of soil and water conservation eco-technology zone in Jiangxi as the research object and probed into the measurement accuracy of sediment concentration by mechanical mixing method and the influence of sediment concentration and water depth to the measurement error of sediment concentration by using mechanical mixing method under the conditions of 6 different sediment concentrations(1,5,10,50,100 and 300 kg/m^(3))and 3 different water depths(30,60 and 90 cm).The outcomes show that a)at the testing design level,the average relative error of mechanical mixing method is 13.49%~31.19%and;b)the sediment concentration has a great influence to the average relative error measured by mechanical mixing method and water depth has little effect on the measurement accuracy of the method.The test results show that the mechanical mixing method is easy to operate and has stable error.It has a good application prospect in the field of sediment observation in collecting bucket in red soil area.

关 键 词：集流桶 采样 含沙量 机械搅拌法 红壤地区 

分 类 号：S157.1[农业科学—土壤学]