Effects of disturbance on soil microbial abundance in biological soil crusts on the Loess Plateau, China
文献类型：期刊论文
| 作者 | Bao, Tianli1,2; Zhao, Yunge1,3,4; Yang, Xueqin1,3; Ren, Wei1,2; Wang, Shanshan1,2 |
| 刊名 | JOURNAL OF ARID ENVIRONMENTS
 |
| 出版日期 | 2019-04-01 |
| 卷号 | 163页码:59-67 |
| 关键词 | Biological soil crust Cyanobacteria Moss Ecological function Dryland |
| ISSN号 | 0140-1963 |
| DOI | 10.1016/j.jaridenv.2019.01.003 |
| 通讯作者 | Zhao, Yunge(zyunge@ms.iswc.ac.cn) |
| 英文摘要 | Biological soil crusts (biocrusts) are important surface cover in drylands, but they are vulnerable to disturbance. To date, research has mostly specialized in changes in the soil microorganisms between disturbed and undisturbed biocrusts, and it is unclear whether disturbance intensity drives the soil microorganisms in biocrusts toward distinct responses. Thus, we investigated the changes in biocrust characteristics, soil properties and microbial abundance at six simulated grazing disturbance gradients (based on the coverage of the broken biocrusts) in the Loess Plateau region of China. The results showed that moderate disturbance, in which the biocrust coverage experienced a 20-30% breakage, was beneficial for improving the abundances of bacteria, actinomycetes and total microorganisms, but severe disturbance (i.e., 40-50% disturbance) may result in a significant reduction in abundance. The increased fungal abundance with the disturbance gradients was related to the aerobic feature of fungi. Additionally, a varied proportion of actinomycetes and bacterial abundance was found under disturbance. Disturbance induced the alteration of soil aeration, moisture and nutrient status (total N or ratio of C/N) that driving the changes of microbial abundance. These results will be meaningful for evaluating the ecosystem services of biocrusts under a disturbance event in dryland ecosystems. |
| WOS关键词 | NITROGEN-FIXATION ; ECOSYSTEM DEVELOPMENT ; SUCCESSIONAL STAGES ; ORGANIC-CARBON ; GERMINATION ; DIVERSITY ; DYNAMICS ; DESERT ; IMPACT ; ESTABLISHMENT |
| 资助项目 | National Natural Science Foundation of China[41830758] ; National Natural Science Foundation of China[41571268] ; National Key Research and Development Program[2017YFC0506503] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000459236300008 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/49485]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhao, Yunge |
| 作者单位 | 1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 4.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bao, Tianli,Zhao, Yunge,Yang, Xueqin,et al. Effects of disturbance on soil microbial abundance in biological soil crusts on the Loess Plateau, China[J]. JOURNAL OF ARID ENVIRONMENTS,2019,163:59-67. |
| APA | Bao, Tianli,Zhao, Yunge,Yang, Xueqin,Ren, Wei,&Wang, Shanshan.(2019).Effects of disturbance on soil microbial abundance in biological soil crusts on the Loess Plateau, China.JOURNAL OF ARID ENVIRONMENTS,163,59-67. |
| MLA | Bao, Tianli,et al."Effects of disturbance on soil microbial abundance in biological soil crusts on the Loess Plateau, China".JOURNAL OF ARID ENVIRONMENTS 163(2019):59-67. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。