易州国家森林公园3种典型林分土壤物理性质研究

打开文本图片集

中图分类号：S714.2 文献标识码：A doi：10.13601/j.issn.1005—5215.2025.04.015

Study on Soil Physical Properties of Three Typical Standsin Yizhou NationalForest Park

Li Xinyue1，Wang Fengtao²，Yang Chuan'，Liu Xiaokuan1 （1.Yixian Natural Resources and PlanningBureau，Baoding O742oo，China; 2.College of Forestry，Hebei Agricultural University，Baoding O7looo，China）

AbstractTo investigate the soil physicalproperties and water conservation capacityof natural broad-leaved mixed forests in Yizhou National Forest Park，the three typical stands in Yunmeng Mountain were selected as the research subjects and comparative analysis of soil physical properties was conducted. The results showed that the average soil bulk density of forest stands from high to low was Pinus tabuliformis pure forest （1.21g⋅cm-3 ），Populus-Ulmus mixed forest （1.09g⋅cm-3 ），Betula-Quercus mixed forest （0.91g⋅cm-3 ）.The mean value of total soil porosity from high to low was Betula-Quercus mixed forest 53.39% ），Pinus tabuliformis pure forest （52.01% ），Populus - Ulmus mixed forest （51.36% ）;the maximum water holding rate of soil and the mean value of soil capillary water holding rate showed the same size relationship，from high to low was Betula - Quercus mixed forest， 1 mus mixed forest，Pinus tabuliformis pure forest. Significant diferences in soil physical property indexes were observed among different forest stands and soil layers.

Key wordsmixed forests;soil physical properties; Yizhou National Forest Park;soil bulk density;soil depth

土壤是森林生态系统物质能量循环的重要载体[1]，有研究表明，林分结构调整对土壤质量和形成过程造成一定影响，土壤水分物理性质的差异决定土壤的形成和水分人渗功能[2-3]。（剩余3023字）