土壤水取样技术应用基础研究——土壤水提取量与土壤含水量关系  

Fundamental Research on Soil Water Sampling Technology

作　　者：荆继红[1] 韩双平[1] 

机构地区：[1]中国地质科学院水文地质环境地质研究所

出　　处：《地球学报》2001年第4期380-383,共4页Acta Geoscientica Sinica

基　　金：地质矿产部科技开发项目 (开 8944 )部分成果

摘　　要：土壤水取样技术在环境地质研究领域 ,特别是包气带污染质迁移、集聚研究 ,浅层地下水的污染预测与防治 ,盐渍土改良及农业生态研究等方面具有重要的应用价值。因而 ,以实验资料为依据 ,研究了土壤水取样技术某些重要应用基础问题 ,重点描述了土壤水取样器在 4种不同岩性中的土壤水提取量与土壤含水量的关系 ,岩性中的土壤水提取量与土壤吸力的关系 ,并建立了相应的相关方程 ,以及对影响土壤水取样速率和取样量主要因素等问题进行了分析。Soil water sampling technology is of great application significance in the field of environmental geology, especially in such aspects as pollutant migration and accumulation in the unsaturated zone, pollution prediction,prevention and control in shallow groundwater, improvement of saline soil and agroecological study. Based on experimental data, this paper emphatically studies the relationship between soil water extraction amount and soil moisture content in four different kinds of lithology when the soil water sampler is used, the relationship between soil water extraction amount and soil suction in each kind of lithology. The correlation equations are also formulated. Finally, some major factors affecting sampling velocity and soil water- extracting quantity are analyzed.

关 键 词：土壤水 含水量 土壤吸力 提取量 取样器 包气带 

分 类 号：S152.7[农业科学—土壤学]