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1990—2020年中国人工林面积扩张使碳储量大幅增加 快报文章
气候变化快报,2024年第10期
作者:  裴惠娟
Microsoft Word(15Kb)  |  收藏  |  浏览/下载:523/0  |  提交时间:2024/05/20
Carbon Storage  China  Planted Forest Expansion  
研究评估气候变化对全球野火时空扩张的影响 快报文章
气候变化快报,2022年第06期
作者:  裴惠娟
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Climate Change  Wildland Fire  Expansion  
COP26:全球森林砍伐的近90%由农业扩张所导致 快报文章
资源环境快报,2021年第22期
作者:  魏艳红
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FAO  Deforestation  Agricultural Expansion  
气候变暖不会造成未来全球干旱区面积扩张 快报文章
气候变化快报,2021年第7期
作者:  董利苹
Microsoft Word(17Kb)  |  收藏  |  浏览/下载:504/0  |  提交时间:2021/04/05
Warming World  Drylands Expansion  Aridity Index  Ecohydrological Index  
火星地表下的冰盐膨胀和坍塌引发滑坡 快报文章
地球科学快报,2021年第5期
作者:  王晓晨
Microsoft Word(51Kb)  |  收藏  |  浏览/下载:565/0  |  提交时间:2021/03/10
Martian subsurface  cryosalt expansion  landslides  
2050年全球87.7%的物种的栖息地面积将因农业扩张缩小 快报文章
资源环境快报,2021年第1期
作者:  董利苹
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Proactive Conservation  Habitat Losses  Agricultural Expansion  
Efficacy of cool roofs at reducing pedestrian-level air temperature during projected 21st century heatwaves in Atlanta, Detroit, and Phoenix (USA) 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (8)
作者:  Broadbent, Ashley M.;  Krayenhoff, E. Scott;  Georgescu, Matei
收藏  |  浏览/下载:21/0  |  提交时间:2020/08/18
urban climate  heat mitigation  cool roofs  urban expansion  climate change  WRF  cooling effectiveness  
The timing and effect of the earliest human arrivals in North America 期刊论文
NATURE, 2020
作者:  Lorena Becerra-Valdivia;  Thomas Higham
收藏  |  浏览/下载:28/0  |  提交时间:2020/08/09

The peopling of the Americas marks a major expansion of humans across the planet. However, questions regarding the timing and mechanisms of this dispersal remain, and the previously accepted model (termed '  Clovis-first'  )-suggesting that the first inhabitants of the Americas were linked with the Clovis tradition, a complex marked by distinctive fluted lithic points(1)-has been effectively refuted. Here we analyse chronometric data from 42 North American and Beringian archaeological sites using a Bayesian age modelling approach, and use the resulting chronological framework to elucidate spatiotemporal patterns of human dispersal. We then integrate these patterns with the available genetic and climatic evidence. The data obtained show that humans were probably present before, during and immediately after the Last Glacial Maximum (about 26.5-19 thousand years ago)(2,3)but that more widespread occupation began during a period of abrupt warming, Greenland Interstadial 1 (about 14.7-12.9 thousand years beforead 2000)(4). We also identify the near-synchronous commencement of Beringian, Clovis and Western Stemmed cultural traditions, and an overlap of each with the last dates for the appearance of 18 now-extinct faunal genera. Our analysis suggests that the widespread expansion of humans through North America was a key factor in the extinction of large terrestrial mammals.


A Bayesian age model suggests that human dispersal to the Americas probably began before the Last Glacial Maximum, overlapping with the last dates of appearance for several faunal genera.


  
Abrupt increase in harvested forest area over Europe after 2015 期刊论文
NATURE, 2020, 583 (7814) : 72-+
作者:  Guido Ceccherini;  Gregory Duveiller;  Giacomo Grassi;  Guido Lemoine;  Valerio Avitabile;  Roberto Pilli;  Alessandro Cescatti
收藏  |  浏览/下载:19/0  |  提交时间:2020/07/06

Fine-scale satellite data are used to quantify forest harvest rates in 26 European countries, finding an increase in harvested forest area of 49% and an increase in biomass loss of 69% between 2011-2015 and 2016-2018.


Forests provide a series of ecosystem services that are crucial to our society. In the European Union (EU), forests account for approximately 38% of the total land surface(1). These forests are important carbon sinks, and their conservation efforts are vital for the EU'  s vision of achieving climate neutrality by 2050(2). However, the increasing demand for forest services and products, driven by the bioeconomy, poses challenges for sustainable forest management. Here we use fine-scale satellite data to observe an increase in the harvested forest area (49 per cent) and an increase in biomass loss (69 per cent) over Europe for the period of 2016-2018 relative to 2011-2015, with large losses occurring on the Iberian Peninsula and in the Nordic and Baltic countries. Satellite imagery further reveals that the average patch size of harvested area increased by 34 per cent across Europe, with potential effects on biodiversity, soil erosion and water regulation. The increase in the rate of forest harvest is the result of the recent expansion of wood markets, as suggested by econometric indicators on forestry, wood-based bioenergy and international trade. If such a high rate of forest harvest continues, the post-2020 EU vision of forest-based climate mitigation may be hampered, and the additional carbon losses from forests would require extra emission reductions in other sectors in order to reach climate neutrality by 2050(3).


  
Spatial distribution of urban greenspace in response to urban development from a multi-scale perspective 期刊论文
ENVIRONMENTAL RESEARCH LETTERS, 2020, 15 (6)
作者:  Wang, Jing;  Zhou, Weiqi;  Wang, Jia;  Yu, Wenjuan
收藏  |  浏览/下载:15/0  |  提交时间:2020/08/18
urban ecology  urban greenspace  urban expansion  multiscale analysis  spatial distribution  dynamic  China