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3篇 您的检索式:作者名="D.Bardgett"
    题名 作者 年代 出处 被引量
1The use of chronosequences in studies of ecological succession and soil development显示文摘Lawrence R.Walker David A.Wardle Richard D.Bardgett Bruce D.Clarkson 2010Journal of Ecology2010,,4:1
2气候问题的“根”源显示文摘人类已经不可避免地改变了这个世界的生态系统。我们已经耕种了地球表面超过40%的土地,并且把外来物种引入新的地区、向大气层排放二氧化碳、打乱自然的气候循环,还以过量的氮和其他废物污染水体生态系统。Richard D.Bardgett 周林文 2011生物技术世界2011,,5:0
3Trade-off between microbial carbon use efficiency and specific nutrient-acquiring extracellular enzyme activities under reduced oxygen显示文摘Mangroves are one of the most ecologically sensitive ecosystems to global climate change,which have cascading impacts on soil carbon(C),nitrogen(N)and phosphorus(P)cycling.Moreover,mangroves are experiencing increasing N and P loadings and reduced oxygen availability due to intensified climate change and human activities.However,both direct and interactive effects of these perturbations on microbially mediated soil C,N and P cycling are poorly understood.Here,we simultaneously investigated the effects of N and P loadings and reduced oxygen on microbial biomass,microbial respiration,and extracellular enzyme activities(EEAs)in mangrove soils.We calculated the microbial metabolic quotient(qCO_(2)),which is regarded as a useful inverse metric of microbial C use efficiency(CUE).Our results show that reduced oxygen significantly increases both qCO_(2) and microbial specific EEAs(enzyme activity per unit of microbial biomass)for C-,N-and P-acquisition regardless of N or P loadings.Furthermore,we found that qCO_(2) positively correlated with microbial specific EEAs under reduced oxygen,whereas no clear relationship was detected under ambient oxygen.These results suggest that reduced oxygen increases microbial specific EEAs at the expense of increasing microbial respiration per unit biomass,indicating higher energy cost per unit enzyme production.Ji Chen Irene Cordero Daryl L.Moorhead Jennifer K.Rowntree Lorae T.Simpson Richard D.Bardgett Hayley Craig 2023Soil Ecology Letters2023,5,2:0
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