The persistence of bacterial diversity and ecosystem multifunctionality along a disturbance intensity gradient in karst soil
文献类型：期刊论文
| 作者 | Xue, Yafang5,6,7; Tian, Jing5,6,7 ; Quine, Timothy A.1; Powlson, David8; Xing, Kaixiong6; Yang, Liyang5; Kuzyakov, Yakov2,3,4; Dungait, Jennifer A. J.1
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
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| 出版日期 | 2020-12-15 |
| 卷号 | 748页码:13 |
| ISSN号 | 0048-9697 |
| 关键词 | Karst Disturbance intensity Rock outcrop Bacterial community Bacterial interactions Ecosystem multifunctionality |
| DOI | 10.1016/j.scitotenv.2020.142381 |
| 通讯作者 | Tian, Jing(tianj@igsnrr.ac.cn) |
| 英文摘要 | Extensive, progressive rock emergence causes localized variations in soil biogeochemical and microbial properties that may influence the capacity for the regeneration of degraded karst ecosystems. It is likely that karst ecosystem recovery relies on the persistence of soil functions at the microbial scale, and we aimed to explored the role of interactions between soil bacterial taxa and identify keystone species that deliver key biogeochemical functions, i.e. carbon (C) and nutrient (nitrogen, N and phosphorus, P) cycling. We applied high-throughput sequencing and phylogenetic molecular ecological network approaches to topsoils sampled at rock-soil interfaces and adjacent bulk soil along an established gradient of land-use intensity in the Chinese Karst Critical Zone Observatory. Bacterial a-diversity was greater under increased perturbation and at the rock-soil interface compared to bulk soils under intensive cultivation. However, bacterial ecological networks were less intricate and connected fewer keystone taxa as human disturbance increased and at the rock-soil interface. Co-occurrence within the bacterial community in natural primary forest soils was 13% larger than cultivated soils. The relative abundances of keystone taxa Acidobacteria, Bacteroidetes and Chloroflexi increased with land-use intensity, while Proteobacteria, Actinobacteria and Verrucomicrobia decreased by up to 6%. In general, Bacteroidetes, Verrucomicrobia and Chlorobiwere related to C-cycling, Proteobacteria, Actinobacteria and Chloroflexiwere related to N-cycling, and Actinobacteria and Nitrospirae were related to both N- and P-cycling. Proteobacteria and Chlorobi affected C-cycling and multiple functionality indexes in the abandoned land. We conclude that increasing land-use intensity changed the soil bacterial community structure and decreased bacterial interactions. However, increases in a-diversity at the rock-soil interface in cultivated soils indicated that major soil functions related to biogeochemical cycling were maintained within keystone taxa in this microenvironment. Our study provides foundations to test the success of different regeneration practices in restoring soil microbial diversity and the multifunctionality of karst ecosystems. (c) 2020 Elsevier B.V. All rights reserved. |
| WOS关键词 | MICROBIAL COMMUNITY STRUCTURE ; LAND-USE CHANGE ; CATALYTIC EFFICIENCY ; FUNGAL DIVERSITY ; PLANT DIVERSITY ; ENZYME-ACTIVITY ; FOREST ; AVAILABILITY ; RHIZOSPHERE ; SUCCESSION |
| 资助项目 | National Natural Science Foundation of China[41571130041] ; National Natural Science Foundation of China[31770560] ; National Natural Science Foundation of China[2017YFA0604803] ; National Environmental Research Council of the UK ; Newton Foundation[NE/N007603/1] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000581049800122 |
| 资助机构 | National Natural Science Foundation of China ; National Environmental Research Council of the UK ; Newton Foundation |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/156811]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Tian, Jing |
| 作者单位 | 1.Univ Exeter, Coll Life & Environm Sci, Geog, Rennes Dr, Exeter EX4 4RJ, Devon, England 2.Univ Gottingen, Dept Agr Soil Sci, Dept Soil Sci Temperate Ecosyst, D-37077 Gottingen, Germany 3.Kazan Fed Univ, Inst Environm Sci, Kazan 420049, Russia 4.RUDN Univ, Agrotechnol Inst, Moscow 117198, Russia 5.China Agr Univ, Natl Acad Agr Green Dev, Coll Resources & Environm Sci, Key Lab Plant Soil Interact,Minist Educ, Beijing 100193, Peoples R China 6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 7.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China 8.Rothamsted Res, Dept Sustainable Agr Sci, Harpenden AL5 2JQ, Herts, England |
| 推荐引用方式 GB/T 7714 | Xue, Yafang,Tian, Jing,Quine, Timothy A.,et al. The persistence of bacterial diversity and ecosystem multifunctionality along a disturbance intensity gradient in karst soil[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,748:13. |
| APA | Xue, Yafang.,Tian, Jing.,Quine, Timothy A..,Powlson, David.,Xing, Kaixiong.,...&Dungait, Jennifer A. J..(2020).The persistence of bacterial diversity and ecosystem multifunctionality along a disturbance intensity gradient in karst soil.SCIENCE OF THE TOTAL ENVIRONMENT,748,13. |
| MLA | Xue, Yafang,et al."The persistence of bacterial diversity and ecosystem multifunctionality along a disturbance intensity gradient in karst soil".SCIENCE OF THE TOTAL ENVIRONMENT 748(2020):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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