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Selection: with tag amazonia [13 articles] 

 

Trajectories of the Earth system in the Anthropocene

  
Proceedings of the National Academy of Sciences (06 August 2018), 201810141, https://doi.org/10.1073/pnas.1810141115

Abstract

We explore the risk that self-reinforcing feedbacks could push the Earth System toward a planetary threshold that, if crossed, could prevent stabilization of the climate at intermediate temperature rises and cause continued warming on a “Hothouse Earth” pathway even as human emissions are reduced. Crossing the threshold would lead to a much higher global average temperature than any interglacial in the past 1.2 million years and to sea levels significantly higher than at any time in the Holocene. We examine the ...

 

The future of the Brazilian Amazon

  
Science, Vol. 291, No. 5503. (19 January 2001), pp. 438-439, https://doi.org/10.1126/science.291.5503.438

Abstract

The Brazilian Amazon is currently experiencing the world's highest absolute rate of forest destruction and is likely to suffer even greater degradation in the future because of government plans to invest $40 billion from 2000 to 2007 in dozens of major new highways and infrastructure projects. We developed two computer models that integrate spatial data on deforestation, logging, mining, highways and roads, navigable rivers, vulnerability to wildfires, protected areas, and existing and planned infrastructure projects, in an effort to predict the ...

 

Drought sensitivity of the Amazon rainforest

  
Science, Vol. 323, No. 5919. (06 March 2009), pp. 1344-1347, https://doi.org/10.1126/science.1164033

Abstract

Amazon forests are a key but poorly understood component of the global carbon cycle. If, as anticipated, they dry this century, they might accelerate climate change through carbon losses and changed surface energy balances. We used records from multiple long-term monitoring plots across Amazonia to assess forest responses to the intense 2005 drought, a possible analog of future events. Affected forest lost biomass, reversing a large long-term carbon sink, with the greatest impacts observed where the dry season was unusually intense. ...

 

Biomass collapse in Amazonian forest fragments

  
Science, Vol. 278, No. 5340. (7 November 1997), pp. 1117-1118, https://doi.org/10.1126/science.278.5340.1117

Abstract

Rain forest fragments in central Amazonia were found to experience a dramatic loss of above-ground tree biomass that is not offset by recruitment of new trees. These losses were largest within 100 meters of fragment edges, where tree mortality is sharply increased by microclimatic changes and elevated wind turbulence. Permanent study plots within 100 meters of edges lost up to 36 percent of their biomass in the first 10 to 17 years after fragmentation. Lianas (climbing woody vines) increased near edges ...

 

Actor-specific contributions to the deforestation slowdown in the Brazilian Amazon

  
Proceedings of the National Academy of Sciences, Vol. 111, No. 43. (28 October 2014), pp. 15591-15596, https://doi.org/10.1073/pnas.1322825111

Abstract

[Significance] The Brazilian Amazon is at a critical juncture after the recent stabilization of deforestation rates. Identifying opportunities for continued deforestation reductions requires an understanding of the contribution of different actors to overall deforestation. We provide the first such assessment, to our knowledge, that reports on two headline findings. First, between 2004 and 2011, areas dominated by properties larger than 500 ha accounted for 48% of the deforestation compared with only 12% for smallholders (<100 ha). Second, the deforestation share attributed ...

 

A large-scale field assessment of carbon stocks in human-modified tropical forests

  
Glob Change Biol (1 May 2014), pp. n/a-n/a, https://doi.org/10.1111/gcb.12627

Abstract

Tropical rainforests store enormous amounts of carbon, the protection of which represents a vital component of efforts to mitigate global climate change. Currently, tropical forest conservation, science, policies, and climate mitigation actions focus predominantly on reducing carbon emissions from deforestation alone. However, every year vast areas of the humid tropics are disturbed by selective logging, understory fires, and habitat fragmentation. There is an urgent need to understand the effect of such disturbances on carbon stocks, and how stocks in disturbed forests ...

 

Deforestation: carving up the Amazon

  
Nature, Vol. 509, No. 7501. (21 May 2014), pp. 418-419, https://doi.org/10.1038/509418a

Abstract

A rash of road construction is causing widespread change in the world's largest tropical forest with potentially global consequences. [excerpt] The drying brought about by roads influences local atmospheric circulation patterns and can have farther-reaching effects that not only compromise the health of the Amazon but can also contribute to global warming by releasing carbon stored in the forest. [...] Stripping away trees not only eliminates a source of moisture; it also changes the regional air flow. As the forest dries, ...

 

Functional megadiversity

  
Proceedings of the National Academy of Sciences, Vol. 111, No. 16. (22 April 2014), pp. 5763-5764, https://doi.org/10.1073/pnas.1402618111

Abstract

[Excerpt] Western Amazonian and Andean forests have Earth’s highest biodiversity and are globally important for ecosystem services and climate regulation. Straddling the planet’s longest ecological gradients, they have captured the imagination of scientists since von Humboldt (1). However, ecological studies and theory have incorporated that spectacular biological variation in only the most rudimentary ways, or not at all. It is widely understood that there are many traits that are important to plant performance, consequential not only for things like carbon gain ...

 

(INRMM-MiD internal record) List of keywords of the INRMM meta-information database - part 2

  
(February 2014)
Keywords: age-distribution   aggregated-indices   agile-programming   agricultural-abandonment   agricultural-land   agricultural-policy   agricultural-resources   agriculture   agrilus-anxius   agrilus-biguttatus   agrilus-pannonicus   agrilus-planipennis   agrilus-spp   agrochemistry   agroecosystems   agroforestry   agrometeorology   ailanthone   ailanthus-altissima   ailanthus-glandulosa   ailanthus-spp   air-pollution   air-quality   air-quality-modelling   alaska   albania   albedo   albizia-guachapele   albizia-julibrissin   albizia-lebbek   albizzia-julibrissin   alces-alces   alcoholic-beverage   alder-decline   aleurites-fordii   aleurites-moluccana   algae   algarve   algebra   algeria   algorithm-engineering   algorithm-errors   algorithmic-accountability   algorithmics   algorithms   alien-species   allelochemicals   allelopathy   allergen   allergy   allozymes   alnus-barbata   alnus-cordata   alnus-cremastogyne   alnus-crispa   alnus-glutinosa   alnus-hirsuta   alnus-incana   alnus-nepalensis   alnus-rhombifolia   alnus-rubra   alnus-spp   alnus-subcordata   alnus-viridis   aloe-dichotoma   alpine-environment   alpine-region   alsophila-pometaria   altica-populi   altitudinal-gradient   aluminium   amaranthus-spp   amazonia   ambiguity   amblypelta-cocophaga   ambrosiella-spp   amelanchier-laevis   amelanchier-ovalis   amelanchier-spp   amelancier-ovalis   amorpha-fruticosa   amphibians   amsterdam   anacardium-occidentale   anaerea-calcarata   anaerea-carcharias   analogic-thinking   analysis   ancient-forest   ancient-forest-plant-species   ande-region   andira-inermis   anemone-trifolia   animal   animal-behaviour   animal-feed   anisogramma-anomala   anisotrpy   annona-cherimola   inrmm-list-of-tags  

Abstract

List of indexed keywords within the transdisciplinary set of domains which relate to the Integrated Natural Resources Modelling and Management (INRMM). In particular, the list of keywords maps the semantic tags in the INRMM Meta-information Database (INRMM-MiD). [\n] The INRMM-MiD records providing this list are accessible by the special tag: inrmm-list-of-tags ( http://mfkp.org/INRMM/tag/inrmm-list-of-tags ). ...

 

Amazon forests maintain consistent canopy structure and greenness during the dry season

  
Nature (5 February 2014), https://doi.org/10.1038/nature13006

Abstract

The seasonality of sunlight and rainfall regulates net primary production in tropical forests1. Previous studies have suggested that light is more limiting than water for tropical forest productivity2, consistent with greening of Amazon forests during the dry season in satellite data3, 4, 5, 6, 7. We evaluated four potential mechanisms for the seasonal green-up phenomenon, including increases in leaf area5, 6, 7 or leaf reflectance3, 4, 6, using a sophisticated radiative transfer model8 and independent satellite observations from lidar and optical ...

 

Trick of the light

  
Nature, Vol. 506, No. 7486. (6 February 2014), pp. 6-6, https://doi.org/10.1038/506006b

Abstract

The Amazon doesn’t absorb extra carbon in the dry season after all. It can become a carbon source. ...

 

Forest ecology: Splinters of the Amazon

  
Nature, Vol. 496, No. 7445. (17 April 2013), pp. 286-289, https://doi.org/10.1038/496286a

Abstract

Nature | News Feature Forest ecology: Splinters of the Amazon Decades after Thomas Lovejoy isolated fragments of the Brazilian rainforest in a grand experiment, researchers are building on his legacy around the world. Jeff Tollefson 17 April 2013 Image Slideshow The Biological Dynamics of Forest Fragmentation project is the largest and longest-running ecological experiment of its kind. Beginning in 1980, scientists and ranchers cleared the trees around 11 plots of primary forest in the Brazilian Amazon, creating islands of ...

 

Exploring the likelihood and mechanism of a climate-change-induced dieback of the Amazon rainforest

  
Proceedings of the National Academy of Sciences In Proceedings of the National Academy of Sciences, Vol. 106, No. 49. (08 February 2009), pp. 20610-20615, https://doi.org/10.1073/pnas.0804619106

Abstract

We examine the evidence for the possibility that 21st-century climate change may cause a large-scale “dieback” or degradation of Amazonian rainforest. We employ a new framework for evaluating the rainfall regime of tropical forests and from this deduce precipitation-based boundaries for current forest viability. We then examine climate simulations by 19 global climate models (GCMs) in this context and find that most tend to underestimate current rainfall. GCMs also vary greatly in their projections of future climate change in Amazonia. We ...

This page of the database may be cited as:
Integrated Natural Resources Modelling and Management - Meta-information Database. http://mfkp.org/INRMM/tag/amazonia

Publication metadata

Bibtex, RIS, RSS/XML feed, Json, Dublin Core

Meta-information Database (INRMM-MiD).
This database integrates a dedicated meta-information database in CiteULike (the CiteULike INRMM Group) with the meta-information available in Google Scholar, CrossRef and DataCite. The Altmetric database with Article-Level Metrics is also harvested. Part of the provided semantic content (machine-readable) is made even human-readable thanks to the DCMI Dublin Core viewer. Digital preservation of the meta-information indexed within the INRMM-MiD publication records is implemented thanks to the Internet Archive.
The library of INRMM related pubblications may be quickly accessed with the following links.
Search within the whole INRMM meta-information database:
Search only within the INRMM-MiD publication records:
Full-text and abstracts of the publications indexed by the INRMM meta-information database are copyrighted by the respective publishers/authors. They are subject to all applicable copyright protection. The conditions of use of each indexed publication is defined by its copyright owner. Please, be aware that the indexed meta-information entirely relies on voluntary work and constitutes a quite incomplete and not homogeneous work-in-progress.
INRMM-MiD was experimentally established by the Maieutike Research Initiative in 2008 and then improved with the help of several volunteers (with a major technical upgrade in 2011). This new integrated interface is operational since 2014.