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Prediction of blanket peat erosion across Great Britain under environmental change

Journal Articles & Books
декабря, 2016

A recently developed fluvial erosion model for blanket peatlands, PESERA-PEAT, was applied at ten sites across Great Britain to predict the response of blanket peat erosion to environmental change. Climate change to 2099 was derived from seven UKCP09 future projections and the UK Met Office’s historical dataset. Land management scenarios were established based on outputs from earlier published investigations. Modelling results suggested that as climate changes, the response of blanket peat erosion will be spatially very variable across Great Britain.

Spatio-temporal distribution pattern of vegetation coverage in Junggar Basin, Xinjiang

Journal Articles & Books
декабря, 2016

Vegetation coverage is an indicator used for exploring the growth of vegetation, which has attracted attention from ecologists owing to its significant role in ecological conservation and restoration. As an important component of the terrestrial ecosystem, changes in vegetation coverage reflect changes in the environment, especially with respect to arid areas. A change of vegetation coverage will trigger desertification, degradation of the eco-environment, and regional climate change.

Confronting the Food–Energy–Environment Trilemma: Global Land Use in the Long Run

Journal Articles & Books
декабря, 2016

Economic, agronomic, and biophysical drivers affect global land use, so all three influences need to be considered in evaluating economically optimal allocations of the world’s land resources. A dynamic, forward-looking optimization framework applied over the course of the coming century shows that although some deforestation is optimal in the near term, in the absence of climate change regulation, the desirability of further deforestation is eliminated by mid-century.

Fifty Years on: Long‐term Patterns of Land Sensitivity to Desertification in Italy

Journal Articles & Books
декабря, 2016
Italy

The Mediterranean region has been regarded as a critical hotspot for desertification due to the impact of soil degradation, the land‐use changes and the climate variations. Few large‐scale studies have been devoted to analyse trends in land sensitivity to desertification in the northern Mediterranean basin. The present paper contributes to this deserving issue by quantifying the level of land sensitivity to desertification in Italy at seven points between 1960 and 2010 at a fine spatial scale.

Spatial Assessment of Land Degradation Risk for the Okavango River Catchment, Southern Africa

Journal Articles & Books
декабря, 2016
Southern Africa
Africa

The Okavango catchment in southern Africa is subject to environmental as well as socio‐economic transformation processes such as population growth and climate change. The degradation of soil and vegetation by deforestation and overgrazing is one of the downsides of this development, reducing the capacity of the land to provide ecosystem functions and services. In this study, climate simulations are brought together with secondary socioeconomic, pedologic and remote‐sensing data in a GIS‐based assessment of the factors commonly associated with land degradation risk.

Evaluation of the Effects of Climate Change on Groundwater Recharge Using a Hybrid Method

Journal Articles & Books
декабря, 2016

In this study, a new framework was developed for the estimation of groundwater recharge based on a hybrid method. In this regard, the homogeneous recharge zones were determined by the analytical hierarchy process (AHP). The recharge rates in these zones were calculated using the Thornthwaite and Mather’s method. These zones and their recharge rates were entered into the MODFLOW model. Next, the modeling processes, modification of recharge, and calibration of empirical models were interactively continued in the MODFLOW.

Water Efficient Cropping Systems for Semi-Arid Regions in Pakistan

Journal Articles & Books
декабря, 2016
Pakistan

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.

Taking Stock, December 2016

Reports & Research
Training Resources & Tools
декабря, 2016
Vietnam
Eastern Asia
Oceania

Over recent decades, Vietnam’s agricultural sector has made enormous progress, realizing major gains in productivity and output and contributing to national goals related to food security, poverty reduction, social stability, and trade. Nevertheless, there are growing concerns related to the quality and sustainability of Vietnam’s agricultural growth and related patterns of development.

Agricultural biodiversity to manage the risks and empower the poor. Proceedings of the International Conference 27-29 April 2015, Rome, Italy.

Conference Papers & Reports
декабря, 2016

An International Conference was held in Rome, Italy 27-29 April 2015 to launch the IFAD and EU supported Project ‘Linking agrobiodiversity value chains, climate adaptation and nutrition: Empowering the poor to manage risk’. The event brought together people with different expertise to discuss the role of agricultural biodiversity in fostering more resilient livelihoods and solicit their guidance to refine the methodological framework for the Project.

Effects of livestock grazing on soil nitrogen mineralization on Hulunber meadow steppe, China

Journal Articles & Books
декабря, 2016
China

Soil nitrogen (N) cycling is an important factor in terrestrial ecosystems, including grasslands. Understanding the effects of grazing on nitrogen cycling in grassland ecosystems is critical for better management and for improving knowledge of the mechanisms underlying grassland degradation and can provide basic information for sustainable development in grassland ecosystems. In this study, in situ incubation in intact soil cores was used to measure seasonal changes in soil nitrogen mineralization and nitrification in the meadow steppe of the Hulunber grasslands of northeastern China.