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首页> 外文期刊>International Journal of Agriculture and Biology >Soil Microbial Biomass Characteristics and Activity at different Stages of Forest Succession in Mid-Subtropical Region of China
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Soil Microbial Biomass Characteristics and Activity at different Stages of Forest Succession in Mid-Subtropical Region of China

机译：中国中亚热带地区森林继承不同阶段土壤微生物生物量特征及活动

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摘要

The soil samples of 0 to 10 cm layer and 10 to 20 cm layer were compared between a pine (Pinus massoniana) forest (PF), a pine and broadleaf mixed forest (MF) and an evergreen broadleaf forest (BF), representing different succession stages of evergreen broad-leaf forest, to investigated the effects of forest succession on soil microbial biomass characteristics. From PF to BF there was an increase in soil organic carbon (SOC), total nitrogen (TN), and microbial biomass carbon (C mic ). At the 0–10 cm layer from PF to BF, SOC, TN, C mic and microbial biomass nitrogen (N mic ) increased. The correlation analysis showed that: C mic and N mic were strongly correlated to SOC and TN. In addition, contribution of C mic /SOC was the lowest in PF, and was significantly and negatively correlated to SOC TN and strongly correlated to C mic and C mic /N mic . Soil respiration was strongly correlated with SOC, TN and C mic . The qCO 2 was significantly and negatively correlated to SOC, C mic and N mic . Succession from PF to MF to BF leaded to an increase in soil microbial biomass and soil nutrients. The quality of litter and the improvement of soil fertility are the main cause of microbial biomass increases with the succession process gradually.
机译：在松（Pinus Massoniana）森林（PF），松树和阔叶混合森林（MF）之间进行0至10cm层和10至20cm层的土壤样品和常绿阔叶林（BF），代表不同的连续常绿阔叶森林的阶段，研究了森林继承对土壤微生物生物量特征的影响。从PF到BF，土壤有机碳（SoC），总氮（TN）和微生物生物量碳（C MIC）升高。在从PF到BF的0-10cm层，SOC，TN，C MIC和微生物生物量氮（N MIC）增加。相关分析表明：C MIC和N MIC与SOC和TN强烈相关。此外，C MIC / SOC的贡献是PF中最低的，并且与SOC TN显着和呈负相关，与C MIC和C MIC / N MIC强烈相关。土壤呼吸与SOC，TN和C MIC强烈相关。 QCO 2显着且与SoC，C MIC和N MIC相关。从PF到MF到BF的连续引起土壤微生物生物量和土壤营养素的增加。凋落物的质量和土壤肥力的提高是微生物生物量的主要原因随着继承过程逐渐增加。

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