نتایج جستجو برای: human induced deforestation

تعداد نتایج: 2436176  

2013
Yi Y. Liu Jason P. Evans Matthew F. McCabe Richard A. M. de Jeu Albert I. J. M. van Dijk Albertus J. Dolman Izuru Saizen

Satellite observations identify the Mongolian steppes as a hotspot of global biomass reduction, the extent of which is comparable with tropical rainforest deforestation. To conserve or restore these grasslands, the relative contributions of climate and human activities to degradation need to be understood. Here we use a recently developed 21-year (1988-2008) record of satellite based vegetation...

Journal: :Nature Geoscience 2021

Nations will reaffirm their commitment to reducing greenhouse gas (GHG) emissions during the 26th United Climate Change Conference (COP26; www.ukcop26.org), in Glasgow, Scotland, November 2021. Revision of national commitments play a key role defining future Earth’s climate. In past conferences, main target Amazonian nations was reduce resulting from land-use change and land management by commi...

Journal: :Current Biology 2016
Ken Norris

Tropical deforestation is a significant cause of global carbon emissions and biodiversity loss. A new study shows that deforestation today leaves a carbon and biodiversity debt to be paid over subsequent years. This has potentially profound implications for forest conservation.

2010
Rick Rheingans

The course examines natural resource issues affecting developing countries, and explores the impacts on communities, households, their decisions, and their health. Key resource use issues include water use (drinking, sanitation, and irrigation), agriculture (intensification, pesticide use, and land degradation), fuel wood scarcity, deforestation, conservation, and mining. For each of these issu...

2017
Maria Cristina Rulli Monia Santini David T. S. Hayman Paolo D’Odorico

Tropical forests are undergoing land use change in many regions of the world, including the African continent. Human populations living close to forest margins fragmented and disturbed by deforestation may be particularly exposed to zoonotic infections because of the higher likelihood for humans to be in contact with disease reservoirs. Quantitative analysis of the nexus between deforestation a...

2015
Natalia Ocampo-Peñuela Stuart L. Pimm Maura (Gee) Geraldine Chapman

Deforestation causes habitat loss, fragmentation, degradation, and can ultimately cause extinction of the remnant species. Tropical montane birds face these threats with the added natural vulnerability of narrower elevational ranges and higher specialization than lowland species. Recent studies assess the impact of present and future global climate change on species' ranges, but only a few of t...

Every year, due to population growth and economy development, land uses and land covers are changing. The various types of land uses have significant roles on components of water balance of a watershed. The simulation modeling has the capability to predict floods, to evaluate land use impacts on floods, and to make decision in watershed management. In this research, the effects of land use chan...

Journal: Desert 2018
M. Arabkhedri M. Gheitoury M. Heshmati, M. Hosseini Y. Parvizi

The forest soils are the key parts of the Earth system that are globally degraded through anthrop induced deforestation, mainly converting to other landuses. The present study was conducted in Gazafolya village located in Merek watershed, Kermanshah, Iran, in which the soil quality of the forest and converted forest (rainfed lands) with the same topographic and geologic conditions were compared...

2008
Bethany A. Bradley Erica Fleishman

Land-cover change is a major component of global change (Foley et al., 2005). Many forms of land-cover change, such as deforestation and urbanization, are directly associated with land use. Other land-cover changes, such as melting of permafrost, may be indirectly associated with human activity via anthropogenically induced climate change. Further changes in land cover, such as the expansion of...

2016
Daniel J. Zarin Nancy L. Harris Alessandro Baccini Dmitry Aksenov Matthew C. Hansen Claudia Azevedo‐Ramos Tasso Azevedo Belinda A. Margono Ane C. Alencar Chris Gabris Adrienne Allegretti Peter Potapov Mary Farina Wayne S. Walker Varada S. Shevade Tatiana V. Loboda Svetlana Turubanova Alexandra Tyukavina

Halving carbon emissions from tropical deforestation by 2020 could help bring the international community closer to the agreed goal of <2 degree increase in global average temperature change and is consistent with a target set last year by the governments, corporations, indigenous peoples' organizations and non-governmental organizations that signed the New York Declaration on Forests (NYDF). W...

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