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可持续农业是实现环境可持续发展的有效工具 快报文章
资源环境快报,2024年第13期
作者:  董利苹
Microsoft Word(21Kb)  |  收藏  |  浏览/下载:641/0  |  提交时间:2024/07/15
Central Europe  Carbon Stocks  Soil Quality  Biodiversity  
联合国发布欧洲和中亚可持续发展目标本地化的指导方针 快报文章
资源环境快报,2023年第21期
作者:  牛艺博
Microsoft Word(16Kb)  |  收藏  |  浏览/下载:537/0  |  提交时间:2023/11/14
Europe  Central Asia  SDGs  Localizing  
英研究揭示影响刚果中部泥炭碳积累和损失的两大因素 快报文章
气候变化快报,2023年第20期
作者:  秦冰雪
Microsoft Word(28Kb)  |  收藏  |  浏览/下载:530/0  |  提交时间:2023/10/20
Carbon Accumulation  Carbon Loss  Central Congo Peatlands  
全球变暖影响下刚果泥炭地可能会转变为碳源 快报文章
气候变化快报,2022年第22期
作者:  秦冰雪
Microsoft Word(13Kb)  |  收藏  |  浏览/下载:662/0  |  提交时间:2022/11/20
Peatland  Carbon  Central Congo Basin  
中亚地区正在建设绿色、弹性和包容性更强的社会经济 快报文章
资源环境快报,2021年第13期
作者:  李恒吉
Microsoft Word(17Kb)  |  收藏  |  浏览/下载:476/0  |  提交时间:2021/07/16
Central Asia  Green development  Inclusive society  
Vulnerability of vegetation activities to drought in Central Asia 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (8)
作者:  Deng, Haoyu;  Yin, Yunhe;  Han, Xiang
收藏  |  浏览/下载:41/0  |  提交时间:2020/08/18
drought  vegetation  vulnerability  climate change  Central Asia  
Current European flood-rich period exceptional compared with past 500 years 期刊论文
NATURE, 2020, 583 (7817) : 560-+
作者:  ;  nter Blö;  schl;  Andrea Kiss;  Alberto Viglione;  Mariano Barriendos;  Oliver Bö;  hm;  Rudolf Brá;  zdil;  Denis Coeur;  Gaston Demaré;  e;  Maria Carmen Llasat;  Neil Macdonald;  Dag Retsö;  Lars Roald;  Petra Schmocker-Fackel;  Inê;  s Amorim;  Monika Bě;  ;  nová;  Gerardo Benito;  Chiara Bertolin;  Dario Camuffo;  Daniel Cornel;  Radosł;  aw Doktor;  ;  bor Elleder;  Silvia Enzi;  Joã;  o Carlos Garcia;  ;  diger Glaser;  Julia Hall;  Klaus Haslinger;  Michael Hofstä;  tter;  ;  rgen Komma;  Danuta Limanó;  wka;  David Lun;  Andrei Panin;  Juraj Parajka;  Hrvoje Petrić;  Fernando S. Rodrigo;  Christian Rohr;  Johannes Schö;  nbein;  Lothar Schulte;  Luí;  s Pedro Silva;  Willem H. J. Toonen;  Peter Valent;  ;  rgen Waser;  Oliver Wetter
收藏  |  浏览/下载:81/0  |  提交时间:2020/08/09

There are concerns that recent climate change is altering the frequency and magnitude of river floods in an unprecedented way(1). Historical studies have identified flood-rich periods in the past half millennium in various regions of Europe(2). However, because of the low temporal resolution of existing datasets and the relatively low number of series, it has remained unclear whether Europe is currently in a flood-rich period from a long-term perspective. Here we analyse how recent decades compare with the flood history of Europe, using a new database composed of more than 100 high-resolution (sub-annual) historical flood series based on documentary evidence covering all major regions of Europe. We show that the past three decades were among the most flood-rich periods in Europe in the past 500 years, and that this period differs from other flood-rich periods in terms of its extent, air temperatures and flood seasonality. We identified nine flood-rich periods and associated regions. Among the periods richest in floods are 1560-1580 (western and central Europe), 1760-1800 (most of Europe), 1840-1870 (western and southern Europe) and 1990-2016 (western and central Europe). In most parts of Europe, previous flood-rich periods occurred during cooler-than-usual phases, but the current flood-rich period has been much warmer. Flood seasonality is also more pronounced in the recent period. For example, during previous flood and interflood periods, 41 per cent and 42 per cent of central European floods occurred in summer, respectively, compared with 55 per cent of floods in the recent period. The exceptional nature of the present-day flood-rich period calls for process-based tools for flood-risk assessment that capture the physical mechanisms involved, and management strategies that can incorporate the recent changes in risk.


Analysis of thousands of historical documents recording floods in Europe shows that flooding characteristics in recent decades are unlike those of previous centuries.


  
Characterization and source analysis of water-soluble ions in PM2.5 at a background site in Central China 期刊论文
ATMOSPHERIC RESEARCH, 2020, 239
作者:  Xie, Yajun;  Lu, Haibo;  Yi, Aijun;  Zhang, Zhongyi;  Zheng, Nengjian;  Fang, Xiaozhen;  Xiao, Huayun
收藏  |  浏览/下载:29/0  |  提交时间:2020/08/18
PM2.5  SNA  Water-soluble ions characteristics  Formation mechanism  Source identification  Central China  
Statistical characterization of vertical meteorological profiles obtained with the WRF-ARW model on the central Andes of Peru and its relationship with the occurrence of precipitation on the region 期刊论文
ATMOSPHERIC RESEARCH, 2020, 239
作者:  Moya-Alvarez, Aldo S.;  Martinez-Castro, Daniel;  Kumar, Shailendra;  Flores Rojas, Jose L.;  Estevan, Rene;  Saavedra-Huanca, Miguel;  Silva, Yamina
收藏  |  浏览/下载:24/0  |  提交时间:2020/08/18
Central Andes  WRF model  Thermodynamics indices  Mantaro basin  Rainfall  Verification  
A population of dust-enshrouded objects orbiting the Galactic black hole 期刊论文
NATURE, 2020, 577 (7790) : 337-+
作者:  Witze, Alexandra
收藏  |  浏览/下载:30/0  |  提交时间:2020/07/03

The central 0.1 parsecs of the Milky Way host a supermassive black hole identified with the position of the radio and infrared source Sagittarius A* (refs.(1,2)), a cluster of young, massive stars (the S stars3) and various gaseous features(4,5). Recently, two unusual objects have been found to be closely orbiting Sagittarius A*: the so-called G sources, G1 and G2. These objects are unresolved (having a size of the order of 100 astronomical units, except at periapse, where the tidal interaction with the black hole stretches them along the orbit) and they show both thermal dust emission and line emission from ionized gas(6-10). G1 and G2 have generated attention because they appear to be tidally interacting with the supermassive Galactic black hole, possibly enhancing its accretion activity. No broad consensus has yet been reached concerning their nature: the G objects show the characteristics of gas and dust clouds but display the dynamical properties of stellar-mass objects. Here we report observations of four additional G objects, all lying within 0.04 parsecs of the black hole and forming a class that is probably unique to this environment. The widely varying orbits derived for the six G objects demonstrate that they were commonly but separately formed.