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Regime shift of the hydroclimate-vegetation system in the Yellow River Delta of China from 1982 through 2015 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (2)
作者:  Niu, Beibei;  Zhang, Zixuan;  Yu, Xinyang;  Li, Xinju;  Wang, Zhen;  Loaiciga, Hugo A.;  Peng, Sha
收藏  |  浏览/下载：7/0  |  提交时间：2020/07/02
regime shift  hydroclimate-vegetation system  time series decomposition  structural change  Yellow River Delta  
Synchrotron infrared spectroscopic evidence of the probable transition to metal hydrogen 期刊论文
NATURE, 2020, 577 (7792) : 631-+
作者:  Zhuang, Zhe;  Yu, Jin-Quan
收藏  |  浏览/下载：25/0  |  提交时间：2020/07/03

Hydrogen has been an essential element in the development of atomic, molecular and condensed matter physics(1). It is predicted that hydrogen should have a metal state(2)  however, understanding the properties of dense hydrogen has been more complex than originally thought, because under extreme conditions the electrons and protons are strongly coupled to each other and ultimately must both be treated as quantum particles(3,4). Therefore, how and when molecular solid hydrogen may transform into a metal is an open question. Although the quest for metal hydrogen has pushed major developments in modern experimental high-pressure physics, the various claims of its observation remain unconfirmed(5-7). Here a discontinuous change of the direct bandgap of hydrogen, from 0.6 electronvolts to below 0.1 electronvolts, is observed near 425 gigapascals. This result is most probably associated with the formation of the metallic state because the nucleus zero-point energy is larger than this lowest bandgap value. Pressures above 400 gigapascals are achieved with the recently developed toroidal diamond anvil cell(8), and the structural changes and electronic properties of dense solid hydrogen at 80 kelvin are probed using synchrotron infrared absorption spectroscopy. The continuous downward shifts of the vibron wavenumber and the direct bandgap with increased pressure point to the stability of phase-III hydrogen up to 425 gigapascals. The present data suggest that metallization of hydrogen proceeds within the molecular solid, in good agreement with previous calculations that capture many-body electronic correlations(9).


  
What drives public willingness to participate in the voluntary personal carbon-trading scheme? A case study of Guangzhou Pilot, China 期刊论文
ECOLOGICAL ECONOMICS, 2019, 165
作者:  Tan, Xueping;  Wang, Xinyu;  Zaidi, Syed Haider Ali
收藏  |  浏览/下载：6/0  |  提交时间：2019/11/27
Personal Carbon Trading  Carbon Generalized System of Preferences  Technology Acceptance Model  Structural Equation Model  Participation Willingness  Climate Change  
Structural Changes and Sustainability. A Selected Review of the Empirical Evidence 期刊论文
ECOLOGICAL ECONOMICS, 2019, 159: 244-260
作者:  Savona, Maria;  Ciarli, Tommaso
收藏  |  浏览/下载：6/0  |  提交时间：2019/11/26
Structural change  Sustainable development  Tertiarisation  De-materialisation  Pollution haven hypothesis  
Modelling the Evolution of Economic Structure and Climate Change: A Review 期刊论文
ECOLOGICAL ECONOMICS, 2019, 158: 51-64
作者:  Ciarli, Tommaso;  Savona, Maria
收藏  |  浏览/下载：4/0  |  提交时间：2019/04/09
Structural change  Climate change  Economic modelling  
Disentangling effects of climate and land-use change on West African drylands' forage supply 期刊论文
GLOBAL ENVIRONMENTAL CHANGE-HUMAN AND POLICY DIMENSIONS, 2018, 53: 24-38
作者:  Ferner, Jessica;  Schmidtlein, Sebastian;  Guuroh, Reginald T.;  Lopatin, Javier;  Linstaedter, Anj A.
收藏  |  浏览/下载：7/0  |  提交时间：2019/04/09
Global change  Savanna ecosystem  metabolisable energy  Fodder biomass  Social-ecological system (SES)  Structural equation modelling (SEM)  
Carbon cycle confidence and uncertainty: Exploring variation among soil biogeochemical models 期刊论文
GLOBAL CHANGE BIOLOGY, 2018, 24 (4) : 1563-1579
作者:  Wieder, William R.;  Hartman, Melannie D.;  Sulman, Benjamin N.;  Wang, Ying-Ping;  Koven, Charles D.;  Bonan, Gordon B.
收藏  |  浏览/下载：8/0  |  提交时间：2019/04/09
biogeochemistry  carbon cycle  earth system models  global change  microbial models  soil organic matter  structural uncertainty  turnover time  
Interannual bumble bee abundance is driven by indirect climate effects on floral resource phenology 期刊论文
ECOLOGY LETTERS, 2017, 20 (12)
作者:  Ogilvie, Jane E.;  Griffin, Sean R.;  Gezon, Zachariah J.;  Inouye, Brian D.;  Underwood, Nora;  Inouye, David W.;  Irwin, Rebecca E.
收藏  |  浏览/下载：11/0  |  提交时间：2019/04/09
Bumble bee  Bombus  climate change  floral resources  phenology  pollinator  precipitation  snowmelt  structural equation model  
Climate- and successional-related changes in functional composition of European forests are strongly driven by tree mortality 期刊论文
GLOBAL CHANGE BIOLOGY, 2017, 23 (10)
作者:  Ruiz-Benito, Paloma;  Ratcliffe, Sophia;  Zavala, Miguel A.;  Martinez-Vilalta, Jordi;  Vila-Cabrera, Albert;  Lloret, Francisco;  Madrigal-Gonzalez, Jaime;  Wirth, Christian;  Greenwood, Sarah;  Kaendler, Gerald;  Lehtonen, Aleksi;  Kattge, Jens;  Dahlgren, Jonas;  Jump, Alistair S.
收藏  |  浏览/下载：11/0  |  提交时间：2019/04/09
climate change  demographic rates  drought  functional traits  FunDivEUROPE  mixed modelling  National Forest Inventory  piecewise structural equation modelling  temperature anomaly  tree growth  
Post-fire plant regeneration across a closed forest-savanna vegetation transition 期刊论文
FOREST ECOLOGY AND MANAGEMENT, 2017, 400
作者:  Araujo, Felipe D. C.;  Tng, David Y. P.;  Apgaua, Deborah M. G.;  Coelho, Polyanne A.;  Pereira, Diego G. S.;  Santos, Rubens M.
收藏  |  浏览/下载：3/0  |  提交时间：2019/04/09
Alternative stable states  Diversity  Structural change  Fire disturbance  Forest-savanna ecotones  Vegetation dynamics