张力计结构简单，能可靠地测量土壤吸力，但是监测土壤的剖面吸力有一定的困难。
The tensiometer can measure the suction of soil reliably, and its structure is simple. But it has certain difficulty in monitoring the sectional suction of the soil.
了解这些特性是对土壤剖面、土壤类型、土壤生产力和土壤管理进行研究的一个必要的先决条件。
An understanding of the nature of these characteristics is an essential prerequisite to the study of soil profiles, soil types, soil productivity, and soil management.
混交林的根系在土壤剖面上，垂直分布趋于均匀。
Roots in soil profile of the mixed stands show a well distribution.
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