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Effects of fertilization and stand age on N2O and NO emissions from tea plantations: a site-scale study in a subtropical region using a modified biogeochemical model 期刊论文
ATMOSPHERIC CHEMISTRY AND PHYSICS, 2020, 20 (11) : 6903-6919
作者:  Zhang, Wei;  Yao, Zhisheng;  Zheng, Xunhua;  Liu, Chunyan;  Wang, Rui;  Wang, Kai;  Li, Siqi;  Han, Shenghui;  Zuo, Qiang;  Shi, Jianchu
收藏  |  浏览/下载：12/0  |  提交时间：2020/06/16
Improvement in municipal wastewater treatment alters lake nitrogen to phosphorus ratios in populated regions 期刊论文
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2020, 117 (21) : 11566-11572
作者:  Tong, Yindong;  Wang, Mengzhu;  Penuelas, Josep;  Liu, Xueyan;  Paerl, Hans W.;  Elser, James J.;  Sardans, Jordi;  Couture, Raoul-Marie;  Larssen, Thorjorn;  Hu, Hongying;  Dong, Xin;  He, Wei;  Zhang, Wei;  Wang, Xuejun;  Zhang, Yang;  Liu, Yi;  Zeng, Siyu;  Kong, Xiangzhen;  Janssen, Annette B. G.;  Lin, Yan
收藏  |  浏览/下载：12/0  |  提交时间：2020/05/13
nutrient balance  water quality change  anthropogenic source  wastewater treatment  aquatic ecosystem  
Recycling and metabolic flexibility dictate life in the lower oceanic crust 期刊论文
NATURE, 2020, 579 (7798) : 250-+
作者:  Zhou, Peng;  Yang, Xing-Lou;  Wang, Xian-Guang;  Hu, Ben;  Zhang, Lei;  Zhang, Wei;  Si, Hao-Rui;  Zhu, Yan;  Li, Bei;  Huang, Chao-Lin;  Chen, Hui-Dong;  Chen, Jing;  Luo, Yun;  Guo, Hua;  Jiang, Ren-Di;  Liu, Mei-Qin;  Chen, Ying;  Shen, Xu-Rui;  Wang, Xi;  Zheng, Xiao-Shuang;  Zhao, Kai;  Chen, Quan-Jiao;  Deng, Fei;  Liu, Lin-Lin;  Yan, Bing;  Zhan, Fa-Xian;  Wang, Yan-Yi;  Xiao, Geng-Fu;  Shi, Zheng-Li
收藏  |  浏览/下载：37/0  |  提交时间：2020/05/13

The lithified lower oceanic crust is one of Earth'  s last biological frontiers as it is difficult to access. It is challenging for microbiota that live in marine subsurface sediments or igneous basement to obtain sufficient carbon resources and energy to support growth(1-3) or to meet basal power requirements(4) during periods of resource scarcity. Here we show how limited and unpredictable sources of carbon and energy dictate survival strategies used by low-biomass microbial communities that live 10-750 m below the seafloor at Atlantis Bank, Indian Ocean, where Earth'  s lower crust is exposed at the seafloor. Assays of enzyme activities, lipid biomarkers, marker genes and microscopy indicate heterogeneously distributed and viable biomass with ultralow cell densities (fewer than 2,000 cells per cm(3)). Expression of genes involved in unexpected heterotrophic processes includes those with a role in the degradation of polyaromatic hydrocarbons, use of polyhydroxyalkanoates as carbon-storage molecules and recycling of amino acids to produce compounds that can participate in redox reactions and energy production. Our study provides insights into how microorganisms in the plutonic crust are able to survive within fractures or porous substrates by coupling sources of energy to organic and inorganic carbon resources that are probably delivered through the circulation of subseafloor fluids or seawater.