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土壤水是土壤中生物活动的必要条件。土壤水中溶解着可溶性有机物及大量的无机盐,是微生物很好的营养和能量来源。土壤水的变化和运动影响土壤的通气性和养分的可给性,是影响微生物活动的重要物理因子之一。许多土壤微生物学工作者利用水势(水分势能)进行
Soil water is a necessary condition for biological activity in the soil. Soil dissolved in water soluble organic matter and a large number of inorganic salts, is a good source of nutrients and energy of microorganisms. Soil water changes and movement affect soil aeration and nutrient availability, is one of the important physical factors affecting microbial activity. Many soil microbiologists use the water potential (water potential)