森林工程2017，Vol.33Issue(2)：50-55,6.
落叶松人工林林地土壤微生物边缘效应研究
Study on soil microbial edge effect in Larix gmelini Rupr plantation
徐辉 1屈惠蕾 1孟春1
作者信息
- 1. 东北林业大学 工程技术学院,哈尔滨 150040
- 折叠
摘要
Abstract
The 0~80 cm soil layer of Larix gmelini Rupr plantation in Harbin experimental forest stand of northeast forestry university was taken as research object,the main influence factors of microbial characteristics and edge effect of Larix gmelinii soil was studied by dilution plate and chloroform fumigation methods.The results showed that the microbial quantity of soil and microbial biomass carbon exponentially decreased with the increase of soil depth,and about 80% of them were in 40 cm-depth soil layer under the he earth's surface.Soil microbe had edge effect.The lower limit of ecological ecotone could be determined by the method of integral.Vertical distribution of soil microbial quantity and microbial biomass carbon positively related to soil total carbon,total nitrogen,and soil porosity.Soil porosity is the key factor that affects soil microbial edge effect when carbon and nitrogen don't become the limiting factors.关键词
落叶松人工林/土壤微生物/边缘效应Key words
Larix gmelini Rupr plantation/soil microbe/edge effect分类
农业科技引用本文复制引用
徐辉,屈惠蕾,孟春..落叶松人工林林地土壤微生物边缘效应研究[J].森林工程,2017,33(2):50-55,6.
