Results 41 to 50 of about 1,482 (148)

Effects of Different Logging Residue Treatments on Acid Hydrolyzed Soil Organic Carbon Fractions and Soil Microbial Communities in a Chinese Fir Plantation [PDF]

open access: yes
[Objective] Acid hydrolyzed soil organic carbon fractions are important in soil, and the changes of their contents will affect soil microbial community composition.
GUO Jianfen   +5 more
core   +1 more source

Plant–microbe interactions drive the rhizosphere microbial assembly and nitrogen cycling in a subtropical forest

open access: yesFunctional Ecology, Volume 39, Issue 5, Page 1274-1287, May 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Interactions between plants and soil microorganisms in the rhizosphere are vital for maintaining the nutrient cycle and stability of terrestrial ecosystems. Nitrogen, closely related to carbon (C) cycling and ecosystem productivity, undergoes transformation by soil ...
Ru Wang   +9 more
wiley   +1 more source

紫色土区植物篱对坡面土壤微生物特性的影响

open access: yesShuitu Baochi Xuebao, 2011
土壤微生物是土壤的重要组成部分,对土壤肥力的形成和植物营养的转化起着积极的作用,是土壤肥力和环境变化的重要指标。通过土壤微生物量测定,研究新银合欢植物篱对紫色土区坡地农耕地、经济林地2种土地利用方式及10°,15°坡度下0-20cm土层土壤微生物特性的影响。研究发现:新银合欢植物篱可以明显提高土壤中细菌、放线菌、真菌的数量及微生物量碳、氮含量;植物篱对经济林地小区土壤微生物数量,微生物量碳、氮的影响作用总体上大于对农耕地小区的,同时对10°农耕地的影响作用总体上大于对15°农耕地的;下坡的三大微生物数量,
郭甜   +7 more
doaj  

Heavy metal pollution enhances pathogen resistance of an invasive plant species over its native congener

open access: yesFunctional Ecology, Volume 39, Issue 4, Page 1096-1111, April 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Many invasive plant species have demonstrated a better ability to tolerate and accumulate heavy metals than their co‐occurring native plants. Given the potential biological toxicity of heavy metals to phytopathogens, we postulated that heavy metal contamination could ...
Tiantian Lin   +7 more
wiley   +1 more source

宁夏不同类型盐渍化土壤微生物区系及多样性

open access: yesShuitu Baochi Xuebao, 2011
为了查明土壤微生物对不同类型盐碱地土壤质量的反应,采用平板稀释法和Biolog微生物鉴定系统对宁夏银川平原盐化、碱化2种类型盐渍化土壤微生物区系、季节变化、结构组成及微生物多样性进行研究。结果表明:随着盐碱化程度的加重,土壤细菌、真菌和放线菌数量及微生物总数呈现显著降低的趋势;细菌、真菌和放线菌数量在不同季节上表现为6月>8月>9月;土壤种群数量占微生物总数的比例大小为细菌>放线菌>真菌;盐化土壤微生物数量与土壤养分间的相关关系较碱化土壤密切。随着盐化和碱化土壤程度的加强 ...
李凤霞   +5 more
doaj  

Plant nutrient‐acquisition strategies contribute to species replacement during primary succession

open access: yesJournal of Ecology, Volume 113, Issue 4, Page 988-1003, April 2025.
Pioneer species Hippophae acquires phosphorus and nitrogen mainly by ‘mining’ and N2‐fixing strategies and thus dominates in the beginning of primary succession. As soil nutrient availability increases with the mobilization of apatite‐P and input of N‐rich plant residues, Hippophae' strategies become less efficient than Populus's scavenging strategies.
Xiao‐Long Li   +12 more
wiley   +1 more source

Ecological relationship between biofuel-producing crops, microalgae and the corresponding microorganisms [PDF]

open access: yes, 2016
随着近年来传统化石燃料消耗所引发的能源短缺危机及全球气候变暖等环境问题的不断加剧,世界各国都在关注并积极开展有关可再生清洁能源的开发与利用研究。其中,在边际土地种植柳枝稷、芒草、杨树及柳树等多年生纤维素类非粮食作物(第二代生物能源物质)和水体中培养产油微藻(第三代生物能源物质),作为生物乙醇及生物柴油的原材料,由于能避免“与人争粮”及“与粮争地”的矛盾,而引起广泛关注。本研究第一部分通过研究美国能源部“五大湖生物能源研究中心”(GLBRC)边际土地上能源作物与土壤微生物的相互关系 ...
陈章然
core  

覆盖与间作对亚热带丘陵区茶园土壤微生物量的影响

open access: yesShuitu Baochi Xuebao, 2006
在亚热带丘陵区红壤幼龄茶园经过4年稻草覆盖及间作三叶草田间小区试验,对土壤剖面分析结果表明.稻草覆盖及间作三叶草均能明显增加土壤表层有机C、碱解N、有效P.增加土壤微生物量C、N、P。剖面中土壤有机C、微生物量C、全N、碱解N、土壤微生物量N、全P、有效P、微生物量P随深度的增加而递减。稻草覆盖影响到40cm土层左右,阃作白三叶草影响到20cm左右。0~20cm土层微生物量C/有机CT2〉T3〉T1,3个处理微生物量N/全N在1.02~2.74之间,微生物量P和全P比值在2.27~13.1之间 ...
沈程文   +5 more
doaj   +2 more sources

苹果园土壤微生物生态特征研究

open access: yesShuitu Baochi Xuebao, 2008
2003—2004年开展对9个有代表性的不同产量的苹果园秋季土壤的养分、微生物类群及土壤酶活性的研究,获得不同产量苹果园的土壤微生物生态状况。结果表明,各苹果园的土壤养分、微生物数量、多样性和酶活性均表现出较大差异。随土壤碱解氮、速效磷、速效钾、总碳含量的增加,产量水平呈增高趋势。高产园土壤微生物数量高,多数土壤酶活性强,微生物多样性好。土壤微生物中细菌数量、微生物多样性、蛋白酶、磷酸酶活性可作为评价果园土壤肥力的生物指标。果树产量与土壤微生物类群和数量具有显著正相关,与速效磷、速效钾 ...
陈伟, 姜中武, 胡艳丽, 束怀瑞
doaj  

DEGRADATION OF METHAMIDOPHOS BY MANGROVE SOIL MICROBES [PDF]

open access: yes, 2000
连续 3年 (a)的试验结果表明 :红树林土壤微生物对农药甲胺磷有较强的降解能力 ,其降解率是同潮带无红树林土壤微生物的 2 - 3倍 ;红树林土壤中存在着降解甲胺磷的优势细菌类群 ,从中筛选得一株高效降解菌 ,其降解率可达 70 %以上 (12d后 ) ;混合菌的降解能力优于单株菌 ;优势降解菌在一定浓度的甲胺磷、适宜的通气、温度和光照等条件下 ,可发挥更佳的降解作用 ;在降解过程中 ,降解优势细菌类群有着明显菌群变化 ,那种一直占优势的菌株可选育为“工程菌 ...
庄铁诚, 张瑜斌, 林鹏
core  

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