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Ecology of Testate Amoebae in Moorland with a Complex Fire History: Implications for Ecosystem Monitoring and Sustainable Land Management

Journal Articles & Books
Dezembro, 2012

Testate amoebae represent a crucial component of soil microfauna and have been studied extensively in ombrotrophic peatlands. However, little is known about their ecology in moorlands which are important habitats in terms of biodiversity and carbon storage potential. Moorlands are under threat from a range of factors such as drainage, burning, over grazing, pollution and climate change.

Tracking the rhythm of the seasons in the face of global change: phenological research in the 21st century

Journal Articles & Books
Dezembro, 2009

Phenology is the study of recurring life‐cycle events, classic examples being the flowering of plants and animal migration. Phenological responses are increasingly relevant for addressing applied environmental issues. Yet, challenges remain with respect to spanning scales of observation, integrating observations across taxa, and modeling phenological sequences to enable ecological forecasts in light of future climate change.

CLIMATE CHANGE AND AGRICULTURAL PRODUCTIVITY IN SUB-SAHARAN AFRICA: A SPATIAL SAMPLE SELECTION MODEL

Policy Papers & Briefs
Dezembro, 2011
África

Using data at a high spatial resolution, we estimate a cereal yield response function conditional upon climatological and topographical features using a recently developed estimator for spatial process models when sample selection is of concern. We control for localized spatial correlationin unobserved disturbances affecting both the selection to plant cereals as well as in the resulting conditional yield response.

Testing the robustness of the physically-based ECOMAG model with respect to changing conditions

Journal Articles & Books
Dezembro, 2015
França
Suécia

The robustness of the physically-based, semi-distributed hydrological model ECOMAG with respect to changing (climatic or land-use) conditions was evaluated for two basins, considered within the modelling workshop held in the frame of the 2013 IAHS conference in Göteborg, Sweden. The first basin, the Garonne River basin, France, is characterized mostly by changes in climatic conditions, while the second, Obyån Creek, Sweden, was exposed to drastic land cover change due to deforestation.

Estimating California ecosystem carbon change using process model and land cover disturbance data: 1951–2000

Journal Articles & Books
Dezembro, 2011

Land use change, natural disturbance, and climate change directly alter ecosystem productivity and carbon stock level. The estimation of ecosystem carbon dynamics depends on the quality of land cover change data and the effectiveness of the ecosystem models that represent the vegetation growth processes and disturbance effects. We used the Integrated Biosphere Simulator (IBIS) and a set of 30- to 60-m resolution fire and land cover change data to examine the carbon changes of California's forests, shrublands, and grasslands.

Perception and decisions in modeling coupled human and natural systems: A case study from Fanjingshan National Nature Reserve, China

Journal Articles & Books
Dezembro, 2012
China

Modeling human–environment systems presents many challenges, including incorporating structure and agency and addressing uncertainty in system components and relationships. Exploring perceptions not only gives us insight into decision-making (agency) but also reveals structural constraints influencing those decisions (including perceived constraints). This study focuses on the human–nature dynamics of Fanjingshan National Nature Reserve (FNNR) in China, a biodiversity hotspot and the only habitat for the Guizhou golden monkey (Rhinopithecus brelichi).

Water Efficient Cropping Systems for Semi-Arid Regions in Pakistan

Journal Articles & Books
Dezembro, 2016
Paquistão

Water scarcity and land degradation are emerging threats to global food production. The dry land regions of world are affected by climate change to a greater extent and facing food insecurity. The current pattern of food production has been estimated to be inadequate to meet demands of growing population and required around 38% increase to meet world`s food demands by 2025. Food insecurity in erosion hit dry land regions of Pakistan also demands development of resource-efficient cropping systems to meet the food needs of population growing.

Soil organic carbon stocks on long-term agroecosystem experiments in Canada

Journal Articles & Books
Dezembro, 2010
Canadá

Several long-term agroecosystem experiments (LTAEs) across Canada have been maintained for periods of up to a century. Much scientific knowledge of changes in soil properties through time has been learned from these few, highly productive LTAEs. We determined the effects of land management changes (LMC) on soil organic carbon (SOC) by re-sampling 27 LTAEs across Canada using identical sampling and laboratory protocols.

Long‐term change and spatial variation in butterfly communities over an elevational gradient: driven by climate, buffered by habitat

Journal Articles & Books
Dezembro, 2015
Espanha

AIM: Efforts to adapt conservation to climate change are hampered by a scarcity of studies of community‐level ecological responses. We examined temporal (40 years) and spatial (1700 m elevational gradient) variation in butterfly communities, aiming to test whether the composition of communities in terms of species' thermal envelopes tracked regional warming, and whether local habitat influenced community responses to climate variation. LOCATION: Sierra de Guadarrama (central Spain).

Land use and climate changes and their impacts on runoff in the yarlung zangbo river basin, china

Journal Articles & Books
Dezembro, 2014
China

Impacts of land use and climate change on runoff were investigated by studying the runoff in the Yarlung Zangbo River basin, China. Trends in precipitation, mean air temperature, and runoff were analysed by non‐parametric Mann‐Kendall tests. Land‐use changes were examined with land‐use transition matrix and geographic information system tools. Land‐use and climate changes showed several characteristics, including increased reforestation, decreased grassland, retreat of glaciers and increased desertification.

Climate change and wildfire risk in an expanding wildland–urban interface: a case study from the Colorado Front Range Corridor

Journal Articles & Books
Dezembro, 2015
Estados Unidos

CONTEXT: Wildfire is a particular concern in the wildland–urban interface (WUI) of the western United States where human development occurs close to flammable natural vegetation. OBJECTIVES: (1) Assess the relative influences of WUI expansion versus climate-driven fire regime change on spatial and temporal patterns of burned WUI, and (2) determine whether WUI developed in the future will have higher or lower wildfire risk than existing WUI.

Monitoring prospective sites for rainwater harvesting and stormwater management in the United Kingdom using a GIS-based decision support system

Journal Articles & Books
Dezembro, 2015
Reino Unido

Rainwater harvesting (RWH) is a practice of growing importance in the United Kingdom, particularly in the southeast of England where the water availability per person is even less than in many Mediterranean countries. Although there is a huge amount of rainfall in the north and west of England and Wales, water resources in the southeast and east of England are under pressure due to the growing population and the changing climate. Therefore, RWH becomes particularly important to reduce the dependence on the mains water supply.