Response of the soil bacterial community to reciprocal soil translocation along an elevation and temperature landscape gradient
文献类型: 外文期刊
作者: Peng, Sili 1 ; Ge, Zhiwei 1 ; Liu, Gangcai 2 ; Yan, Bangguo 3 ; Fang, Haidong 3 ; Jin, Jie 3 ; Shi, Liangtao 3 ;
作者机构: 1.Nanjing Forestry Univ, Coll Biol & Environm, Coinnovat Ctr Sustainable Forestry Southern China, Nanjing 210037, Jiangsu, Peoples R China
2.Chinese Acad Sci, Chinese Acad Sci & Minist Water Resources, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, 9,Block 4,Renminnanlu Rd,POB 417, Chengdu 610041, Sichuan, Peoples R China
3.Yunnan Acad Agr Sci, Res Inst Trop Ecoagr Sci, Yuanmou 651300, Peoples R China
关键词: Bacteria; Climate change; Dry-hot valley; Soil transfer; Basal respiration
期刊名称:APPLIED SOIL ECOLOGY ( 影响因子:4.046; 五年影响因子:4.884 )
ISSN: 0929-1393
年卷期: 2020 年 147 卷
页码:
收录情况: SCI
摘要: Soil microbial communities play a central role in soil biogeochemical processes, yet few studies have addressed their response to climate change in semi-arid savannah ecosystems. In this research, we reciprocally translocated soils along an elevational gradient south subtropical zone (SS) and mid-temperature zone (MT) in a dry-hot valley of Southwest China to simulate temperature and moisture changes under climate-change scenarios. Our objective was to gain a mechanistic understanding of the responses of bacterial communities and soil respiration accompanying climate change. Over a 13-month experiment, soil samples were collected in three main seasons (winter, spring and summer), and the bacterial community diversity, composition and soil basal respiration were determined. The results showed that soil origin and sampling season greatly affected soil bacterial Shannon index, bacterial community structure and soil basal respiration in this region (P < 0.05). The bacterial community compositions in the translocated soils became more similar to the soil bacterial communities in their new environments. Soil temperature and moisture were significantly correlated with the bacterial community structure (P < 0.01), and they could explain 30.86% and 35.85% of the total variances of bacterial community compositions for SS and MT soils, respectively. Relative abundances of dominant bacterial groups were significantly (P < 0.05) correlated with soil temperature - warming increased the relative abundances of Proteobacteria and Bacteroidetes, whereas cooling had the opposite effect. This research provides useful information as to how climate warming and cooling may alter soil bacterial communities in semi-arid savannah ecosystems.
- 相关文献
作者其他论文 更多>>
-
Effects of Native and Non-Native Arbuscular Mycorrhizal Fungi on the Growth of Dodonaea Viscosa Under Drought Stress Conditions
作者:Wang, Xuemei;Yan, Bangguo;Shi, Liangtao;Zhao, Guang;Liu, Gangcai;Liu, Gangcai
关键词:Arbuscular Mycorrhizal fungi; Drought Stress; Plant Growth; Local Adaptation; Dodonaea viscosa
-
Appropriate stoichiometric ratios of dissolved organic carbon and nitrate can trigger a transition in nitrate removal in groundwater around plateau lakes, Southwest China
作者:Cui, Rongyang;Chen, Anqiang;Hu, Wanli;Fu, Bin;Cui, Rongyang;Liu, Gangcai;Cui, Rongyang;Zhang, Dan
关键词:Groundwater; Nitrate pollution; Dissolved organic carbon; Nitrate removal
-
Temperature sensitivity of soil-borne fungal phytopathogens depends on niche breadth and land use types
作者:Yan, Bangguo;Sun, Yi;He, Guangxiong;Li, Lin;Yue, Xuewen;Shi, Liangtao;Fang, Haidong;Yan, Bangguo;Sun, Yi;He, Guangxiong;Li, Lin;Yue, Xuewen;Shi, Liangtao;Fang, Haidong;He, Guangxiong;Wang, Xuemei
关键词:Plant pathogens; Diversity; Climate warming; Specialist; Climate niche
-
Study on erosion deformation of dry-red soil in Yuanmou dry-hot valley with different elevation gradients based on SBAS-InSAR technology
作者:Guo, Junqi;Xi, Wenfei;He, Guangxiong;Yang, Zhengrong;Ding, Zitian;Wang, Lixia;Cao, Ruihan;Xi, Wenfei;He, Guangxiong;Huang, Guangcai;He, Guangxiong;Shi, Liangtao;He, Guangxiong;Shi, Liangtao;He, Guangxiong;Shi, Liangtao
关键词:soil erosion; SBAS-InSAR; fractional vegetation cover; Yuanmou dry-hot valley; dry-red soil
-
Climate and soil stressed elevation patterns of plant species to determine the aboveground biomass distributions in a valley-type Savanna
作者:He, Guangxiong;Shi, Zhengtao;Liang, Qiaoling;Zhao, Lei;Jiang, Qin;He, Guangxiong;Fang, Haidong;Shi, Liangtao;Wang, Yandan;Yang, Haozhou;Yan, Bangguo;Yu, Jianlin;He, Guangxiong;Fang, Haidong;Shi, Liangtao;Wang, Yandan;Yang, Haozhou;Yan, Bangguo;Yu, Jianlin;He, Guangxiong;Fang, Haidong;Shi, Liangtao;Wang, Yandan;Yang, Haozhou;Yan, Bangguo;Yu, Jianlin;Yang, Chaolei
关键词:species diversity; aboveground biomass; valley-type Savanna; RDA; environmental variables and factors
-
Shifts in the sources and fates of nitrate in shallow groundwater caused by agricultural intensification intensity: Revealed by hydrochemistry, stable isotopic composition and source contribution
作者:Cui, Rongyang;Fu, Bin;Yan, Hui;Hu, Wanli;Chen, Anqiang;Cui, Rongyang;Liu, Gangcai;Cui, Rongyang;Zhang, Dan;Wang, Hongyuan
关键词:Shallow groundwater; Water and nitrate isotopes; Nitrate source; Agricultural intensification intensity; Nitrogen transformation
-
Nitrogen in soil, manure and sewage has become a major challenge in controlling nitrate pollution in groundwater around plateau lakes, Southwest China
作者:Cui, Rongyang;Liu, Gangcai;Cui, Rongyang;Liu, Gangcai;Cui, Rongyang;Cui, Rongyang;Hu, Wanli;Zhao, Xinmei;Yan, Hui;Chen, Anqiang;Zhang, Dan
关键词:Groundwater; NO3- isotopes; NO3- pollution; N cycling