新民林场不同森林类型土壤持水能力的分析

从森林土壤对水分涵养能力的角度出发,对兴隆林业局下属的新民林场的落叶松人工林、红松林、杨桦混交林以及耕种过后放弃的撂荒地里不同深度(0～60cm)的土壤水分物理性质进行了系统的分析.结果表明,红松林混交林、落叶松人工林、杨桦混交林3种林分类型下的土壤,不论是表层土壤还是深层土壤,都具有较撂荒地来说比较低的土壤容重、较高的土壤孔隙度和持水量,并且杨桦混交林的蓄水、保水的能力要优于其它的林分类型.

Analysis of the Soil Water Holding Ability of Different Stands in the Xinmin Forest Farm

For the point of the forest's ability to shelter the water, to analyze Xinmin forest farm's larch plantation, Korean pine mixed forest, poplar and birch mixed forest and fallow field's soil moisture physical properties in different depth, from 0 centimeter to 60 centimeters. The results indicated that the soil under the larch plantation, Korean pine mixed forest and Poplar and Birch mixed forest, in despite of the surface soil or deep soil, all have the lower bulk density of soil, higher soil porosity and the water holding ability of soil than the fallow field. Combining above dates and results, the water self-restraining function of poplar and birch mixed forest is more powerful than other forest.