基于不同环境下的河南省典型区域土壤田间持水量研究  

Study on Soil Field Water Capacity in Typical Regions of Henan Province under Different Environments

作　　者：罗清元 杨丹 刘丽娜 郭恒亮 LUO Qing yuan;YANG Dan;LIU Li na;GUO Heng liang(Hydrology and Water Resources Bureau of Henan Province,Zhengzhou 450003,China;Zhoukou Hydrology and Water Resources Survey Bureau of Henan Province,Zhoukou 466000,Henan Province,China;Environmental Monitoring Center of Henan Province,Zhengzhou 450018, China;Smart City Research Institute,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]河南省水文水资源局,郑州450003 [2]河南省周口水文水资源勘测局,河南周口466000 [3]河南省环境监测中心,郑州450018 [4]郑州大学智慧城市研究院,郑州450001

出　　处：《节水灌溉》2019年第6期35-38,42,共5页Water Saving Irrigation

基　　金：河南省科技攻关项目(152102210044);河南省基础与前沿项目(152300410189,142300410064)

摘　　要：土壤田间持水量是衡量土壤墒情和干旱程度的一个重要指标。由于田间持水量的测定环境不同,如季节、环境等因素,可能导致相同区域的土壤其测定结果也不相同。通过颗粒分析实验,确定了全省122处人工墒情站的土壤类型,并从中选取了3个不同土壤类型的站点开展不同季节不同环境下的田间持水量试验。结果表明:①从全省范围来看,河南省的土壤以壤土类型为主,在防汛抗旱时要充分考虑该种土壤类型的蓄水特性;②通过分析试验数据可以得到,其田间持水量与干容重呈现线性反比关系;③3种土壤在不同的季节及实验室温度环境下,田间持水量测定结果差别不大,因此可以得出田间持水量基本不受温度季节的影响的结论。Soil moisture content in the field is an important index to measure the degree of soil moisture and drought. Due to the different measuring environment of field moisture content,such as season,environment and other factors,the results of soil moisture content measurement in the same area may be different. In this paper,the soil types of 122 artificial moisture stations in Henan province were determined through particle analysis experiments,and three sites with different soil types were selected to carry out field moisture content experiments in different seasons and environments. The results show that:① from the perspective of the whole province,the soil in Henan province is mainly loam soil type,and the water storage characteristics of this soil type should be fully considered during flood control and drought resistance;② according to the analysis of experimental data,the relationship between the field water holding capacity and dry bulk density is inversely linear;③ in different seasons and laboratory temperature environments,the results of field water holdup measurement of the three soils have little difference,so it can be concluded that field water capacity is basically not affected by temperature seasons.

关 键 词：河南省 颗粒分析 田间持水量 对比试验 土壤干容重 

分 类 号：S152.7[农业科学—土壤学]