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Stable and Radioisotope Systematics Reveal Fossil Water as Fundamental Characteristic of Arid Orogenic-Scale Groundwater Systems 期刊论文
WATER RESOURCES RESEARCH, 2019, 55 (12) : 11295-11315
作者:  Moran, Brendan J.;  Boutt, David F.;  Munk, Lee Ann
收藏  |  浏览/下载：26/0  |  提交时间：2020/02/16
Salar de Atacama  Chile  paleorecharge  tritium  Altiplano-Puna plateau  regional groundwater flow  
Simulating the Impacts of Irrigation and Dynamic Vegetation Over the North China Plain on Regional Climate 期刊论文
JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 2018, 123 (15) : 8017-8034
作者:  Wu, Liyang;  Feng, Jinming;  Miao, Wenhui
收藏  |  浏览/下载：12/0  |  提交时间：2019/04/09
irrigation  groundwater  dynamic vegetation  regional climate  WRF  Noah-MP  
Groundwater Subsidy From Headwaters to Their Parent Water Watershed: A Combined Field-Modeling Approach 期刊论文
WATER RESOURCES RESEARCH, 2018, 54 (7) : 5110-5125
作者:  Ameli, A. A.;  Gabrielli, C.;  Morgenstern, U.;  McDonnell, J. J.
收藏  |  浏览/下载：11/0  |  提交时间：2019/04/09
regional groundwater  transit time  groundwater recharge  Maimai watershed  groundwater age  
Exurban housing development, onsite wastewater disposal, and groundwater vulnerability within a changing policy context 期刊论文
LANDSCAPE AND URBAN PLANNING, 2017, 167
作者:  LaGro, James A., Jr.;  Vowels, Bradley T.;  Vondra, Benjamin
收藏  |  浏览/下载：10/0  |  提交时间：2019/04/09
septic systems  karst terrain  groundwater  landscape change  land use policy  regional planning  
Radiochemically-Supported Microbial Communities: A Potential Mechanism for Biocolloid Production of Importance to Actinide Transport 科技报告
来源：US Department of Energy (DOE). 出版年： 2014
作者:  Moser, Duane P;  Hamilton-Brehm, Scott D;  Fisher, Jenny C;  Bruckner, James C;  Kruger, Brittany;  Sackett, Joshua;  Russell, Charles E;  Onstott, Tullis C;  Czerwinski, Ken
收藏  |  浏览/下载：42/0  |  提交时间：2019/04/05
Due to the legacy of Cold War nuclear weapons testing  the Nevada National Security Site (NNSS  formerly known as the Nevada Test Site (NTS)) contains millions of Curies of radioactive contamination. Presented here is a summary of the results of the first comprehensive study of subsurface microbial communities of radioactive and nonradioactive aquifers at this site. To achieve the objectives of this project  cooperative actions between the Desert Research Institute (DRI)  the Nevada Field Office of the National Nuclear Security Administration (NNSA)  the Underground Test Area Activity (UGTA)  and contractors such as Navarro-Interra (NI)  were required. Ultimately  fluids from 17 boreholes and two water-filled tunnels were sampled (sometimes on multiple occasions and from multiple depths) from the NNSS  the adjacent Nevada Test and Training Range (NTTR)  and a reference hole in the Amargosa Valley near Death Valley. The sites sampled ranged from highly-radioactive nuclear device test cavities to uncontaminated perched and regional aquifers. Specific areas sampled included recharge  intermediate  and discharge zones of a 100  000-km2 internally-draining province  known as the Death Valley Regional Flow System (DVRFS)  which encompasses the entirety of the NNSS/NTTR and surrounding areas. Specific geological features sampled included: West Pahute and Ranier Mesas (recharge zone)  Yucca and Frenchman Flats (transitional zone)  and the Western edge of the Amargosa Valley near Death Valley (discharge zone). The original overarching question underlying the proposal supporting this work was stated as: Can radiochemically-produced substrates support indigenous microbial communities and subsequently stimulate biocolloid formation that can affect radionuclides in NNSS subsurface nuclear test/detonation sites? Radioactive and non-radioactive groundwater samples were thus characterized for physical parameters  aqueous geochemistry  and microbial communities using both DNA- and cultivation-based tools in an effort to understand the drivers of microbial community structure (including radioactivity) and microbial interactions with select radionuclides and other factors across the range of habitats surveyed.