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- W4280604080 abstract "The special eco-physiological characteristics of moso bamboo (Phyllostachys edulis) facilitate their fast invasion in nature ecosystems. The widespread expansion of moso bamboo causes degradation of adjacent forest ecosystem and change of landscape, as well as soil properties and microbial community composition. However, how moso bamboo expansion affects soil microbial composition is far from fully understood. Herein, we selected four moso bamboo expansion transects with three forest types at the Anji Lingfeng temple forest farm, Zhejiang Province, including evergreen broadleaved forest (BLF), mixed P. edulis and broadleaved forest (MEF) and P. edulis forest (PEF). We examined the effects of moso bamboo expansion on soil properties and soil microbial phospholipid fatty acids (PLFAs). Our results showed that soil pH was higher in moso bamboo forest than in MEF and BLF by 0.37 and 0.32 unit. In contrast, soil organic carbon, ammonium, and nitrate contents significantly decreased. Biomass of soil microbial groups displayed a decreasing trend except arbuscular mycorrhizal fungi, and the microbial richness index (SR) and diversity index (H) decreased significantly. In summary, moso bamboo expansion affected soil nutrient and carbon inputs, which was an important factor affecting soil microbial community structure. Results of redundancy analysis showed that changes of soil organic carbon and ammonium content were the main factors driving soil microbial community.毛竹具有独特的生理生态学特征,会不断地向邻近的生态系统扩张。这一现象会造成生态系统退化、土壤理化性质和微生物群落结构改变等问题,引起了人们的高度关注。然而,目前关于毛竹扩张对微生物群落结构的影响研究甚少。以安吉灵峰寺林场的长期定位试验为平台,在4条毛竹扩张样带上依次设置常绿阔叶林(BLF)、竹-阔混交林(MEF)和毛竹林(PEF)样地,测定不同林型的土壤理化性质以及微生物群落特征。结果表明: 随着毛竹的扩张,土壤pH值显著上升,毛竹林土壤pH值分别比竹-阔混交林和常绿阔叶林高0.37和0.32,而有机碳、铵态氮、硝态氮含量显著降低;除丛枝菌根真菌外,其他主要微生物类群都有下降的趋势,且微生物多样性和丰富度显著降低。毛竹扩张对土壤碳输入及养分的改变是影响地下微生物群落生物量及结构的重要因素,其中土壤有机碳、铵态氮含量是影响土壤微生物群落变化的主要因子。." @default.
- W4280604080 created "2022-05-22" @default.
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- W4280604080 date "2022-04-01" @default.
- W4280604080 modified "2023-09-29" @default.
- W4280604080 title "[Effects of moso bamboo (Phyllostachys edulis) expansion on soil microbial community in evergreen broad-leaved forest]." @default.
- W4280604080 doi "https://doi.org/10.13287/j.1001-9332.202204.030" @default.
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