[水土保持林土壤抗侵蚀性评价]
[Evaluation on soil anti-erodibility of soil and water conservation forest].
作者信息
Shen H, Jiang F, Du X, Lu T
机构信息
Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110015.
出版信息
Ying Yong Sheng Tai Xue Bao. 2000 Jun;11(3):345-8.
Indexes including organic matter content, water stable aggregate content, mean weight diameter of water stable aggregate, aggregate degree and disperse coefficient were selected to evaluate soil anti-erodibility of soil and water conservation forests component of different tree species at different ages. The results showed that soil and water conservation forest played an important role in improving soil anti-erodibility, especially to the topsoil. Compared with that of Chinese pine pure forests, Chinese pine-broadleaved mixed forests had higher soil organic matter content, and water stable aggregate content increased by 1.71%-38.53%, and soil anti-erodibility was also increased with increasing stand age.
选取包括有机质含量、水稳性团聚体含量、水稳性团聚体平均重量直径、团聚度和分散系数等指标，对不同树种、不同林龄的水土保持林分土壤抗侵蚀性进行评价。结果表明，水土保持林对提高土壤抗侵蚀性具有重要作用，尤其是对表层土壤。与油松纯林相比，油松阔叶混交林土壤有机质含量更高，水稳性团聚体含量提高了1.71%-38.53%，且土壤抗侵蚀性也随着林龄的增加而增强。
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