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| 1 | 土壤微生物对增温响应的Meta分析显示文摘通过对35例2009—2015年初发表的增温控制试验的96组数据进行Meta分析,研究了土壤微生物对增温的响应模式,结果表明:增温提高了土壤微生物碳(1.4%)、土壤微生物氮(1.7%)和土壤真菌量(3.7%),降低了土壤细菌量(-1.9%);土壤微生物碳的增温响应与试验地年平均降水量和增温幅度显著相关;土壤微生物氮的变化受试验地年均温、年均降水量及增温幅度的影响。 | 王文立 孔维栋 曾辉 | 2015 | 农业环境科学学报2015,34,11: | 18 |
| 2 | 亚热带毛竹林土壤磷组分和微生物对施氮的响应显示文摘磷(P)是植物和微生物生长的重要营养元素,亚热带地区土壤P有效性较低,且长期高氮(N)沉降可能会造成土壤P有效性进一步降低。本试验开展于戴云山毛竹林,分析了施N 3年对土壤的基本理化性质、P组分、微生物生物量和酸性磷酸单酯酶活性的影响。结果表明:施N显著增加了土壤NO3^--N含量,提高了土壤N有效性,但显著降低了易分解态有机磷占全磷的比例,且总有机碳与总有机P的比例>200。土壤微生物生物量碳、微生物生物量磷、酸性磷酸单酯酶活性、微生物生物量碳/微生物生物量磷和微生物生物量氮/微生物生物量磷随施N量的增加而增加。此外,易分解态有机磷占总磷比例与微生物生物量磷呈显著负相关关系。因此,施N加剧了土壤P有效性限制,提高了微生物对P的需求。 | 曾泉鑫 曾晓敏 林开淼 张秋芳 程蕾 周嘉聪 林巧玉 陈岳民 徐建国 | 2020 | 应用生态学报2020,31,3: | 11 |
| 3 | 整合分析增温和增CO_2对土壤微生物的影响(英文)显示文摘土壤微生物在陆地生态系统碳氮循环中起着重要作用。气候变暖和CO_2浓度增加是气候变化的两个重要方面。本研究整合分析了实验增温和CO_2浓度增加对土壤微生物量和群落结构的影响。生态系统类型主要包括森林生态系统和草地生态系统。增温方法包括开顶式增温小室和热红外增温。增温时间有全天增温、白天增温和晚上增温。实验增温增加了土壤放线菌和腐生真菌,而CO_2浓度增加减少了土壤革兰氏阳性细菌。实验增温对土壤革兰氏阴性细菌和总的磷脂脂肪酸量的影响随着年均温和年降水量的增加而减少。实验增温对土壤总的磷脂脂肪酸量、细菌含量、革兰氏阳性和阴性细菌的量的影响随着海拔的升高而增加。实验增温增加了草地生态系统的土壤总的磷脂脂肪酸量和放线菌含量,并增加了森林生态系统的土壤真菌和细菌的比值。开顶式增温小室增加了土壤革兰氏阴性细菌,而红外增温减少了土壤真菌和细菌的比值。白天增温增加了土壤革兰氏阴性细菌,而全天增温没有改变土壤革兰氏阴性细菌。因此,实验增温对土壤微生物的影响与生态系统类型、实验增温方法、增温时间、海拔和当地的气候条件有关。 | 付刚 张豪睿 李少伟 孙维 | 2019 | Journal of Resources and Ecology2019,10,1: | 5 |
| 4 | Short-Term Effects of Experimental Warming and Precipitation Manipulation on Soil Microbial Biomass C and N, Community Substrate Utilization Patterns and Community Composition显示文摘Soil microorganisms are major drivers of soil carbon(C) cycling;however,the response of these microorganisms to climate change remains unclear.In the present study,we investigated how 18 months of multifactor climate treatments(warmed air temperature by 3℃ and decreased or increased precipitation manipulation by 30%) affected soil microbial biomass C and nitrogen(N),community substrate utilization patterns,and community composition.Decreased and increased precipitation significantly reduced microbial biomass C by 13.5% and 24.9% and microbial biomass N by 22.9% and 17.6% in unwarmed plots,respectively(P<0.01).Warming enhanced community substrate utilization by 89.8%,20.4%,and 141.4% in the natural,decreased,and increased precipitation plots,respectively.Particularly,warming significantly enhanced the utilization of amine and carboxylic acid substrates among all precipitation manipulation plots.Compared with the natural air temperature with natural precipitation treatment,other treatments affected fungal community richness by -0.9% to 33.6% and reduced the relative abundance of the dominant bacterial and fungal groups by 0.5% to 6.8% and 4.3% to 10.7%,respectively.The warming and/or precipitation manipulation treatments significantly altered Zygomycota abundance(P<0.05).Our results indicate that climate change drivers and their interactions may cause changes in soil microbial biomass C and N,community substrate utilization patterns,and community composition,particularly for the fungal community,and shifts in the microorganism community may further shape the ecosystems function. | Guanlin LI Seongjun KIM Minji PARK Yowhan SON | 2017 | Pedosphere2017,27,4: | 4 |
| 5 | Major Elements in Soils Along a 2.8-km Altitudinal Gradient on the Tibetan Plateau,China显示文摘There are a series of special mountain soils on the Tibetan Plateau of China in an alpine environment for the high altitude.However,very few studies have focused on major soil elements in relation to soil formation in this area.Aluminum(Al),iron(Fe),calcium(Ca),sodium(Na),potassium(K) and magnesium(Mg) contents of 237 topsoil samples covering a 2.8-km altitudinal gradient in uncultivated areas along the Qinghai-Tibet Railway of China were measured using inductively coupled plasma atomic emission spectroscopy.The spatial distribution of the elements and its relationship to the parent rocks and climatic parameters were analyzed.Soils along the gradient are derived from a range of parent materials,but most are less than 30 cm deep with little development(Cambisols).Soil Al,Fe and Mg contents showed a decreasing trend from the start station(Xining Station) to end station(Lhasa Station) of the Qinghai-Tibet Railway,whereas soil K and Na contents were relative stable from Xining Station to the Kunlun Mountains and then increased gradually.Soil Ca content was lower in the southern part of the Tanggula Mountains.The major soil element contents clearly re?ected the parent rock and climatic in?uences.Soils with higher Ca content appeared in areas with Ca-Mg carbonate rocks,soils with higher Al were found in areas with silicate-rich and high-Al silicate clastic rocks and silicate-rich aluminosilicate loose sediments.Soils with higher K and Na contents appeared in areas with high-K,high-Na and silicate-rich aluminosilicate rocks.Soil Na and K contents were affected by temperature,whereas the contents of Mg,Fe,Ca and Al were more affected by precipitation.Soil Na and K contents increased with increasing temperatures,whereas the contents of Mg,Fe,Ca and Al decreased with increasing precipitation.This analysis provides a relationship between soil properties and rapidly changing environmental conditions.The data can be used to investigate the effect of the climate or land use change on soil properties. | WANG Zhaofeng Alfred E.HARTEMINK ZHANG Yili ZHANG Hua DING Mingjun | 2016 | Pedosphere2016,26,6: | 2 |
| 6 | 模拟氮沉降和增温对荒漠草原土壤细菌群落组成和多样性的影响显示文摘为了解气候变化对荒漠草原土壤细菌群落组成和多样性的影响,在内蒙古短花针茅荒漠草原采用人工施肥和远红外线辐射器加热法模拟增氮和增温实验,经过连续6 a的模拟实验后,运用稀释平板涂布法和16S rRNA分子鉴定技术,对实验地土壤可培养细菌的群落组成和多样性进行分析.结果表明:(1)从短花针茅荒漠草原0~30 cm土壤中共分离到10属14种的可培养细菌,分别隶属于厚壁菌门、变形菌门的γ-变形菌纲、放线菌门和拟杆菌门;(2)与不增氮不增温处理相比,增氮不增温和增氮增温处理均改变了可培养细菌的群落组成和优势菌的相对丰度,增氮不增温处理使优势菌XJ15(变形菌门的γ-变形菌纲)和XJ35(厚壁菌门)的相对丰度显著降低(P <0.05),增氮增温处理降低了优势菌XJ35的相对丰度,显著增加了XJ15的相对丰度(P <0.05),并使其成为优势种;(3)增氮不增温和增氮增温处理均对可培养细菌的菌落总数和多样性没有显著影响(P> 0.05). | 黄静 杨英花 张国刚 贾美清 韩国栋 | 2019 | 天津师范大学学报(自然科学版)2019,39,1: | 2 |
| 7 | 从微生物角度揭示气候变暖对土壤有机碳转化影响的研究综述显示文摘土壤有机碳(SOC)是维持陆地生态系统生产力和可持续性的关键,以CO_(2)为主的温室气体过量排放导致全球气候持续变暖,对全球SOC转化产生关键作用。微生物是SOC周转的动力,是全球变暖影响SOC储量与化学特性的关键媒介。研究发现,气候变暖导致大部分农田和森林有机碳储量下降,但草原有机碳含量升高,这可能与微生物对有机碳的异化分解和同化固定之间的权衡有关。气温升高可直接提高微生物的呼吸活性,导致真菌在土壤微生物的比例降低,而细菌所占比例升高,对土壤碳库储存产生不利影响;在永久和半永久冻土中,冻融促进土壤活性有机碳库的释放,提高了土壤微生物的碳矿化速率,导致有机碳严重的矿化流失。然而,气温升高和与之相伴的CO_(2)浓度升高有利于植物生长,使得植物光合作用增强,向土壤中输入的有机碳增加;这些外源有机碳在微生物的作用下转化为稳定的SOC,有利于SOC累积。尽管已有大量研究,但气候变暖对SOC库的整体影响与微生物机制仍不明确。从多角度入手,深入认识气候-微生物-SOC之间的关系,有利于在全球变化的大背景下,充分发挥土壤碳汇效应,为“碳达峰”和“碳中和”提供理论与政策依据。 | 刘峰 赵鹏程 张昀 高晓丹 沙飞 孙萌 张景雯 | 2022 | 土壤通报2022,53,6: | 1 |
| 8 | 郭岩山自然保护区丝栗栲天然林分土壤微生物群落沿海拔梯度变化显示文摘[目的]沿着海拔梯度探究郭岩山丝栗栲天然林分土壤微生物多样性和群落组成变化及其与土壤性质的相关关系,揭示气候变化对中国中亚热带中低海拔小跨度梯度下丝栗栲土壤微生物多样性和群落组成变化规律及其影响因素。[方法]选取郭岩山自然保护区海拔500~900 m梯度下丝栗栲天然林分的表层土壤,测定其理化性质,并进行Illumina高通量测序,采用相关性分析和冗余分析等方法研究土壤微生物多样性和群落组成特征及其影响因素。[结果]土壤细菌α多样性并没有呈现明显的海拔分布格局,而真菌的α多样性沿海拔梯度先下降后上升,这与大跨度海拔梯度的研究存在差异;酸杆菌门(Acidobacteria)、放线菌门(Actinobac-teria)和变形菌门(Proteobacteria)是细菌群落的3个主要菌门,norank_f_norank_o_subgroup_2、nor-ank_f_xanthobacteraceae是细菌群落的两个主要菌属;担子菌门(Basidiomycota)、子囊菌门(Ascomyco-ta)是真菌群落的两个主要菌门,Russula、Lactifluus是真菌群落的两个主要菌属,说明了小跨度的海拔梯度不会显著影响优势微生物菌门和属的变化;优势细菌门及属相对丰度及群落组成与土壤pH值、全磷和碱解氮密切相关,而土壤全磷和速效钾是影响真菌群落组成和优势门及属相对丰度的最重要因素,土壤性质可以很好地预测土壤微生物群落的变化,即使在小跨度海拔梯度上亦是如此。[结论]土壤性质和海拔高度共同影响了郭岩山自然保护区土壤微生物的生态地理学分布。本研究将为南方亚热带常绿阔叶林小跨度海拔梯度土壤微生物多样性研究和群落组成保护提供科学依据。 | 汪运祥 吴航湦 何冬梅 苏仪 王子杨 潘龙 廖晓丽 靳少非 郑德祥 | 2023 | 林业科学研究2023,36,6: | 0 |