中文版 | English

在结果中检索

GSTDTAP

浏览/检索结果: 共168条，第1-10条 帮助

限定条件                    
已选(0)清除 条数/页：   排序方式：
Reduced ecosystem services of desert plants from ground-mounted solar energy development 期刊论文
NATURE SUSTAINABILITY, 2020
作者:  Grodsky, Steven M.;  Hernandez, Rebecca R.
收藏  |  浏览/下载：15/0  |  提交时间：2020/08/09
Global hunger and climate change adaptation through international trade 期刊论文
NATURE CLIMATE CHANGE, 2020
作者:  Janssens, Charlotte;  Havlik, Petr;  Krisztin, Tamas;  Baker, Justin;  Frank, Stefan;  Hasegawa, Tomoko;  Leclere, David;  Ohrel, Sara;  Ragnauth, Shaun;  Schmid, Erwin;  Valin, Hugo;  Van Lipzig, Nicole;  Maertens, Miet
收藏  |  浏览/下载：19/0  |  提交时间：2020/08/09
Regulation, governance and the role of the informal sector in influencing environmental quality? 期刊论文
ECOLOGICAL ECONOMICS, 2020, 173
作者:  Swain, Ranjula Bali;  Kambhampati, Uma S.;  Karimu, Amin
收藏  |  浏览/下载：16/0  |  提交时间：2020/08/18
Environmental quality  Informal sector  Governance  
Understanding and managing connected extreme events 期刊论文
NATURE CLIMATE CHANGE, 2020, 10 (7) : 611-621
作者:  Raymond, Colin;  Horton, Radley M.;  Zscheischler, Jakob;  Martius, Olivia;  AghaKouchak, Amir;  Balch, Jennifer;  Bowen, Steven G.;  Camargo, Suzana J.;  Hess, Jeremy;  Kornhuber, Kai;  Oppenheimer, Michael;  Ruane, Alex C.;  Wahl, Thomas;  White, Kathleen
收藏  |  浏览/下载：7/0  |  提交时间：2020/06/22
The role of herbivory in the macroevolution of vertebrate hormone dynamics 期刊论文
ECOLOGY LETTERS, 2020
作者:  Edwards, Phoebe D.;  Sookhan, Nicholas;  Boonstra, Rudy
收藏  |  浏览/下载：6/0  |  提交时间：2020/07/02
Chemical ecology  comparative biology  corticosteroid-binding globulin  cortisol  glucocorticoids  herbivory  phytochemicals  plant-herbivore interactions  secondary plant compounds  
Salvage logging effects on regulating ecosystem services and fuel loads 期刊论文
FRONTIERS IN ECOLOGY AND THE ENVIRONMENT, 2020
作者:  Leverkus, Alexandro B.;  Gustafsson, Lena;  Lindenmayer, David B.;  Castro, Jorge;  Benayas, Jose Maria Rey;  Ranius, Thomas;  Thorn, Simon
收藏  |  浏览/下载：9/0  |  提交时间：2020/07/02
Evolutionary history and past climate change shape the distribution of genetic diversity in terrestrial mammals 期刊论文
NATURE COMMUNICATIONS, 2020, 11 (1)
作者:  Theodoridis, Spyros;  Fordham, Damien A.;  Brown, Stuart C.;  Li, Sen;  Rahbek, Carsten;  Nogues-Bravo, David
收藏  |  浏览/下载：7/0  |  提交时间：2020/05/25
Analysis of proposed 20-year mineral leasing withdrawal in Superior National Forest 期刊论文
ECOLOGICAL ECONOMICS, 2020, 174
作者:  Stock, James H.;  Bradt, Jacob T.
收藏  |  浏览/下载：8/0  |  提交时间：2020/05/13
Economic impact analysis  Resource extraction  Recreation economy  Mining economy  
Resource management and joint-planning in fragmented societies 期刊论文
ECOLOGICAL ECONOMICS, 2020, 171
作者:  Schultz, Bill
收藏  |  浏览/下载：7/0  |  提交时间：2020/07/02
Diversity  Identity  Harvest planning  Game theory  Information  Resource management  Group decision-making  Uncertainty  
Hydrothermal (NN)-N-15-N-15 abundances constrain the origins of mantle nitrogen 期刊论文
NATURE, 2020, 580 (7803) : 367-+
作者:  Zhao, Steven;  Jang, Cholsoon;  Liu, Joyce;  Uehara, Kahealani;  Gilbert, Michael;  Izzo, Luke;  Zeng, Xianfeng;  Trefely, Sophie;  Fernandez, Sully;  Carrer, Alessandro;  Miller, Katelyn D.;  Schug, Zachary T.;  Snyder, Nathaniel W.;  Gade, Terence P.;  Titchenell, Paul M.;  Rabinowitz, Joshua D.;  Wellen, Kathryn E.
收藏  |  浏览/下载：14/0  |  提交时间：2020/05/13

Nitrogen is the main constituent of the Earth'  s atmosphere, but its provenance in the Earth'  s mantle remains uncertain. The relative contribution of primordial nitrogen inherited during the Earth'  s accretion versus that subducted from the Earth'  s surface is unclear(1-6). Here we show that the mantle may have retained remnants of such primordial nitrogen. We use the rare (NN)-N-15-N-15 isotopologue of N-2 as a new tracer of air contamination in volcanic gas effusions. By constraining air contamination in gases from Iceland, Eifel (Germany) and Yellowstone (USA), we derive estimates of mantle delta N-15 (the fractional difference in N-15/N-14 from air), N-2/Ar-36 and N-2/He-3. Our results show that negative delta N-15 values observed in gases, previously regarded as indicating a mantle origin for nitrogen(7-10), in fact represent dominantly air-derived N-2 that experienced N-15/N-14 fractionation in hydrothermal systems. Using two-component mixing models to correct for this effect, the (NN)-N-15-N-15 data allow extrapolations that characterize mantle endmember delta N-15, N-2/Ar-36 and N-2/He-3 values. We show that the Eifel region has slightly increased delta N-15 and N-2/Ar-36 values relative to estimates for the convective mantle provided by mid-ocean-ridge basalts(11), consistent with subducted nitrogen being added to the mantle source. In contrast, we find that whereas the Yellowstone plume has delta N-15 values substantially greater than that of the convective mantle, resembling surface components(12-15), its N-2/Ar-36 and N-2/He-3 ratios are indistinguishable from those of the convective mantle. This observation raises the possibility that the plume hosts a primordial component. We provide a test of the subduction hypothesis with a two-box model, describing the evolution of mantle and surface nitrogen through geological time. We show that the effect of subduction on the deep nitrogen cycle may be less important than has been suggested by previous investigations. We propose instead that high mid-ocean-ridge basalt and plume delta N-15 values may both be dominantly primordial features.