Results 1 to 10 of about 2,548 (157)

鄰苯二甲酸及鄰苯二甲酸二甲酯的好氧微生物降解 [PDF]

open access: yes, 2003
Microbial degradation of phthalate and dimethyl phthalate esters was investigated using an enrichment culture obtained from sewage sludge. Optimal degradation conditions were determined by an orthogonal test for environmental factors. More than 99% PA at
Fan, Y, Gu, J, Wang, Y
core   +8 more sources

改变凋落物和根系输入对米槠天然林土壤微生物群落的影响

open access: yesShuitu Baochi Xuebao, 2021
伴随气候变化下亚热带地区米槠天然林净初级生产力变化,凋落物以及植物根系输入亦会发生改变,这将显著影响土壤微生物群落。于2019年7月在设置7年的米槠天然林植物残体添加和去除试验(the detritus input and removal treatments,DIRT)样地采集不同处理(对照、去除地上凋落物、去除地下根系、无凋落物输入、添加双倍地上凋落物)的2个土层土壤(0—10,10—20 cm),测定微生物磷脂脂肪酸(phospholipid fatty acid,PLFA)含量 ...
张磊   +6 more
doaj  

Effect of Spatial Heterogeneity on the Microbial Community of Daqu, a Fermentation Starter for Chinese Baijiu [PDF]

open access: yes, 2023
The effect of spatial heterogeneity on the microbial community and physicochemical properties during the primary fermentation of Daqu were investigated by high-throughput sequencing technology and conventional detection methods. Nongxiangxing baijiu Daqu
TANG Huifang, HUANG Jun, ZHOU Rongqing, QIN Hui, ZHANG Suyi, DONG Yi, WANG Chao, WANG Xiaojun, MU Yu, PAN Qianglin
core   +1 more source

Impacts of regreening on soil microbial community and its assembly process in open-pit mining area of the Loess Plateau [PDF]

open access: yes, 2023
Vegetation restoration is an important indicator of ecosystem health in a mining area. Understanding the impact of vegetation restoration on the characteristics and assembly process of soil microbial community is very important to explore the resilience ...
Dong XIAO   +5 more
core   +1 more source

滇中富磷区与贫磷区云南松群落差异与土壤磷素研究

open access: yesShuitu Baochi Xuebao, 2021
以同在滇中地区磷素差异较大的富磷区与贫磷区的云南松林群落及其土壤为研究对象,采用Sui修正后的Hedley磷素分级,研究了土壤磷素的有效磷特征和土壤其他养分因子,分析了2类云南松群落的结构及其差异。结果表明,富磷区土壤全磷含量显著高于贫磷区,虽然两地活性磷(H2O—Pi、NaHCO3—Pi和NaHCO3—Po)含量都低于10%,但富磷区活性磷含量显著高于贫磷区,贫磷区有机磷含量高于无机磷含量,富磷区却相反;富磷区其他土壤养分如全氮、有机碳含量也显著高于贫磷区。富磷区云南松群落林木密度、Shannon ...
成祥   +7 more
doaj  

矿区侵蚀土壤的微生物活性及其群落功能多样性研究

open access: yesShuitu Baochi Xuebao, 2003
通过对浙江省天台铅锌银矿区侵蚀土壤的微生物活性以及微生物群落功能多样性研究,结果表明:人为开矿使矿区土壤环境呈现不同层次的加速侵蚀特征。矿区侵蚀土壤的几种重金属含量比无明显侵蚀土壤有明显的增加,且其基本理化性质相应变差。矿区侵蚀土壤微生物特征发生了显著的变化,与无明显侵蚀土壤相比,微生物生物量和可培养细菌数量显著降低,但土壤基础呼吸和微生物代谢商(qCO2)值却明显升高。Biolog测试结果显示,随着土壤侵蚀程度的加剧,其微生物群落结构亦发生了相应改变,侵蚀土壤微生物群落的丰富度、多样性指数 ...
滕应 黄昌勇 龙健 姚槐应 刘方
doaj   +2 more sources

Research progress on the relationship between lung microbiome and lung cancer [PDF]

open access: yes, 2023
Lung cancer is the leading cause of cancer-related deaths worldwide. Lung microbiome is defined as the microbial organisms located in the lung. With rapid development of next-generation sequencing, microbiome has been found to affect the host’s nutrition,
Ge Yijun, Cao Chao
core   +1 more source

秸秆施用下接种蚯蚓对农田土壤微生物特性的影响

open access: yesShuitu Baochi Xuebao, 2007
在连续6年稻麦轮作系统中,研究不同秸秆施用方式下接种蚯蚓对土壤微生物生物量、活性(基础呼吸)及群落功能多样性(BIOLOG单一碳源利用指纹方法)的影响,试验设5个处理:对照(CK)、秸秆表施(M)、秸秆混施(I)、秸秆表施且接种蚯蚓(ME)、秸秆混施且接种蚯蚓(IE)。不同秸秆施用下接种蚯蚓均对土壤微生物生物量、微生物生物活性和群落碳源利用能力产生显著影响:两种秸秆施用方式下接种蚯蚓均增加微生物生物量;秸秆表施并接种蚯蚓导致微生物活性、碳源利用丰富度和多样性指数均降低,而在秸秆混施下则均升高 ...
于建光   +6 more
doaj   +2 more sources

Study on microbial community responses and dissolved organic matter (DOM) transformations in coastal surface seawater amended with sedimentary DOM in Xiamen [PDF]

open access: yes, 2016
海洋沉积物是海水溶解有机质(Dissolvedorganicmatters,DOM)的重要来源。DOM作为海洋异养微生物生存的主要物质和能量来源,影响着微生物群落的结构,而微生物群落也同时影响着DOM的化学组成和最终命运。近年来,海洋沉积物DOM成为海洋生物地球化学领域的热点研究对象,但其生物可利用性一直存在争议,且沉积物DOM释放到上层水体后将如何影响微生物群落的结构也不清晰。为了研究沉积物DOM的生物可利用性,以及沉积物DOM与上层海水微生物群落之间的相互关系,本论文采集了厦门近岸沉积物表层DOM ...
周文楚
core  

Diversity of bacterial community structure and its driving factors in three bays of Bohai Sea [PDF]

open access: yes, 2018
[Background] Sustainable development of coastal ecosystem has become one of the most important concerns for people nowadays. Riverine output and anthropogenic interrupt have important impacts on the coastal environment.
刘鹏远   +5 more
core   +2 more sources

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