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There are 5, 899 content items of different types and languages related to mudança de clima on the Land Portal.

mudança de clima

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Impacts of land cover changes on climate trends in Jiangxi province China

Journal Articles & Books
Dezembro, 2014
China

Land-use/land-cover (LULC) change is an important climatic force, and is also affected by climate change. In the present study, we aimed to assess the regional scale impact of LULC on climate change using Jiangxi Province, China, as a case study. To obtain reliable climate trends, we applied the standard normal homogeneity test (SNHT) to surface air temperature and precipitation data for the period 1951–1999. We also compared the temperature trends computed from Global Historical Climatology Network (GHCN) datasets and from our analysis.

Agricultural management affects the response of soil bacterial community structure and respiration to water-stress

Journal Articles & Books
Dezembro, 2013

Soil microorganisms are responsible for organic matter decomposition processes that regulate soil carbon storage and mineralisation to CO₂. Climate change is predicted to increase the frequency of drought events, with uncertain consequences for soil microbial communities. In this study we tested the hypothesis that agricultural management used to enhance soil carbon stocks would increase the stability of microbial community structure and activity in response to water-stress.

Future European agricultural landscapes--What can we learn from existing quantitative land use scenario studies

Journal Articles & Books
Dezembro, 2006
Suíça
Noruega
Europa

The structure of agricultural production and spatial patterns of agricultural land use in Europe are expected to face major changes over the next decades due to changes in global trade, technology, demography and policies. This paper presents a set of 25 scenarios comprising information on quantitative land use changes in Europe. The scenarios have been selected from studies with different foci, operating on both different spatial scales and different time horizons.

Developing scenarios and visualisations to illustrate potential policy and climatic influences on future agricultural landscapes

Journal Articles & Books
Dezembro, 2006
Europa

The future evolution of our agricultural landscapes and countryside is the subject of considerable debate and policy discussion, alongside which is an increasing emphasis on the inclusion of public consultation and participation within planning and decision making systems. However, communicating different proposed policy options in a manner that facilitates informed decisions from stakeholders can be far from straightforward. This is particularly true with more abstract and uncertain issues such as potential impacts of climate change.

role of forest ecosystems in community-based coping strategies to climate hazards: Three examples from rural areas in Africa

Journal Articles & Books
Dezembro, 2012
Tanzania
Mali
Zâmbia
África

In developing countries, forests play an important role in supplying goods and services. These ecosystems are under many stresses due to unsustainable management practices, lack of clarity on tenure and access rights, and persistent pressure for land-use change. Climate change is exacerbating the impact of these stresses on both forest ecosystems and forest dependent people. What are the current forest coping strategies of different livelihoods? What is the role of forest ecosystems in increasing the resilience of rural communities?

Indigenous Territories and REDD in Latin America: Opportunity or Threat?

Journal Articles & Books
Março, 2011
América Central
América do Sul

An important proportion of Latin America’s forests are located in indigenous territories, and indigenous peoples are the beneficiaries of about 85% of the area for which local rights to land and forest have been recognized in Latin America since the 1980s. Nevertheless, many of these areas, whether or not rights have been recognized, are subject to threats from colonists, illegal loggers, mining and oil interests and others, whose practices endanger not only the forests but also indigenous people’s territory as a whole.

Evaluating landslide hazards using RCP 4.5 and 8.5 scenarios

Journal Articles & Books
Dezembro, 2015
República da Coreia

Recently, extreme meteorological events have occurred frequently owing to climate change and its influence. Impacts of concentrated precipitation events include the damage caused by landslides. Many areas in Gangwondo (Korea) are located at high elevation and have large elevation differences; these areas are thus at high risk of landslides. The purpose of this study was to evaluate the landslide hazard of the province using representative concentration pathways (RCP) scenarios 4.5 and 8.5 and to compare results.

Potential synergies of the main current forestry efforts and climate change mitigation in Central Africa

Journal Articles & Books
Dezembro, 2011
África Central

In Central Africa, important carbon stocks are stored in natural forest stands, while activities that modify the carbon storage occur in the forest landscape. Besides clean development mechanisms, the reduction of emission through deforestation and degradation (REDD) initiative is viewed as one way to mitigate climate change. Important forest habitat protection activities have already been implemented with the aim of conserving the biodiversity of the region in a sustainable manner.

How attractive are short-term CDM forestations in arid regions? The case of irrigated croplands in Uzbekistan

Journal Articles & Books
Dezembro, 2012
Usbequistão

This study analyzed the financial attractiveness of Clean Development Mechanism Afforestation and Reforestation (CDM A/R) in irrigated agricultural settings. The Net Present Value (NPV) and Internal Rate of Return (IRR) of CDM A/R were estimated by analyzing the case of Khorezm region in Uzbekistan, where a mixed-species tree plantation was established on marginal cropland. The dual purposes of carbon sequestration and production of fruits, leaves as fodder, and fuelwood were studied over a seven-year rotation period.

Accounting for tree line shift, glacier retreat and primary succession in mountain plant distribution models

Journal Articles & Books
Dezembro, 2014

AIM: To incorporate changes in alpine land cover (tree line shift, glacier retreat and primary succession) into species distribution model (SDM) predictions for a selection of 31 high‐elevation plants. LOCATION: Chamonix Valley, French Alps. METHODS: We fit linear mixed effects (LME) models to historical changes in forest and glacier cover and projected these trends forward to align with 21st century IPCC climate scenarios. We used a logistic function to model the probability of plant establishment in glacial forelands zones expected to become ice free between 2008 and 2051–2080.

Abruptly increased climatic aridity and its social impact on the Loess Plateau of China at 3100 a B.P

Journal Articles & Books
Dezembro, 2002
China

A multi-disciplinary research with integration of the theory and methods of climatic change and history was carried out in the southern Loess Plateau of China. High-resolution soil-sedimentary data define an abruptly increased climatic aridity at 3100 a B.P. on the southern Loess Plateau. It was caused by a shift from the dominance of the maritime monsoon to the continental monsoon in the East Asia. The marked aridity induced a considerable deterioration of environment and degradation of land resources.