Moderate disturbance increases the PLFA diversity and biomass of the microbial community in biocrusts in the Loess Plateau region of China
文献类型：期刊论文
| 作者 | Bao, Tianli1,2; Gao, Liqian2; Wang, Shanshan1,2; Yang, Xueqin2; Ren, Wei1,2; Zhao, Yunge2,3 |
| 刊名 | PLANT AND SOIL
 |
| 出版日期 | 2020-05-19 |
| 页码 | 15 |
| 关键词 | Biocrusts Disturbance Microorganism Intermediate disturbance hypothesis Dryland |
| ISSN号 | 0032-079X |
| DOI | 10.1007/s11104-020-04554-9 |
| 通讯作者 | Zhao, Yunge(zyunge@ms.iswe.ac.cn) |
| 英文摘要 | Aims Biological soil crusts (biocrusts) play key roles in dryland ecosystems. Examining the effects of different intensities of disturbance on biocrusts and exploring appropriate disturbance levels can provide important information about ecosystem processes and services in drylands. Methods Five disturbance intensities ranging from 10% to 50% based on the percentage of broken biocrusts were implemented to examine the effects of simulated goat trampling on microbial communities; microbial community structure was measured with the phospholipid fatty acid method. Results The effects of disturbance on the biocrusts were closely related to disturbance intensity. Surprisingly, moderate disturbance had a weak effect on total biocrust coverage but increased cyanobacterial coverage by 2 3%. Consequently, there was an increase in total N, a reduction in the C/N ratio and improvements in soil moisture, and these effects led to 13 21% and 5 6% increases in microbial biomass and diversity, respectively, compared with those in undisturbed biocrusts. However, high-intensity disturbance substantially reduced biocrust coverage and microbial abundance. Conclusions The study supports the intermediate disturbance hypothesis and suggests that moderate disturbance has positive effects on the microbial communities of biocrusts. These findings provide vital information for the ecological management of drylands. |
| WOS关键词 | BIOLOGICAL SOIL CRUSTS ; MICROPHYTIC CRUSTS ; SPECIES RICHNESS ; PATTERNS ; IMPACT ; ESTABLISHMENT ; GERMINATION ; INFILTRATION ; GRASSLANDS ; HYPOTHESIS |
| 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 | Agriculture ; Plant Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000534200500001 |
| 出版者 | SPRINGER |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/159642]  |
| 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.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Northwest A&F Univ, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bao, Tianli,Gao, Liqian,Wang, Shanshan,et al. Moderate disturbance increases the PLFA diversity and biomass of the microbial community in biocrusts in the Loess Plateau region of China[J]. PLANT AND SOIL,2020:15. |
| APA | Bao, Tianli,Gao, Liqian,Wang, Shanshan,Yang, Xueqin,Ren, Wei,&Zhao, Yunge.(2020).Moderate disturbance increases the PLFA diversity and biomass of the microbial community in biocrusts in the Loess Plateau region of China.PLANT AND SOIL,15. |
| MLA | Bao, Tianli,et al."Moderate disturbance increases the PLFA diversity and biomass of the microbial community in biocrusts in the Loess Plateau region of China".PLANT AND SOIL (2020):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
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