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technique for quantifying groundwater pumping and land subsidence using a nonlinear stochastic poroelastic model

Journal Articles & Books
Décembre, 2015
Taiwan

Subsidence in Yunlin County, Taiwan, is serious and continuous. The Taiwan High Speed Rail (THSR) route crosses the subsidence area and might be affected by differential settlements. It is important to evaluate the pumping quantity for water resource management and to predict the subsidence for land resource management to mitigate the subsidence problem in Taiwan.

Determinants of successful environmental regimes in the context of the coastal wetlands of Goa

Journal Articles & Books
Décembre, 2012

While community based resource management was practiced for centuries by many traditional societies of the world, these resources are continuously being eroded in the recent years. This paper uses a case study of the Khazans, the coastal wetlands of Goa, in order to study determinants of successful environmental regimes. Khazans are the low-lying coastal lands that have been reclaimed from marshy mangroves by the construction of embankments and sluice gates.

Linking degradation assessment to sustainable land management: A decision support system for Kalahari pastoralists

Journal Articles & Books
Décembre, 2010
Botswana

This paper describes a manual-style Decision Support System that integrates land degradation indicators with adaptive management options and is designed for land managers to easily collect data and monitor progress towards environmental sustainability goals. A number of similar tools have been developed for ranchers in southern Africa, but there has been little help for land managers under common property regimes. Manuals were therefore primarily designed for use by communal pastoralists in three study areas in the Kalahari, Botswana.

Effects of land-use change on productivity depend on small-scale plant species diversity

Journal Articles & Books
Décembre, 2009

Understanding the interplay between land-use change, species diversity and ecosystem function is critical for the prediction of global change impacts on ecosystem services. Biodiversity experiments with artificial species assemblages have shown that community-scale species richness may affect ecosystem productivity and spatial stability. However, the use of synthetic communities with controlled levels of species density for biodiversity experiments has been criticised and their relevance for natural communities has been questioned.

Sphagnum re-introduction in degraded peatlands: The effects of aggregation, species identity and water table

Journal Articles & Books
Décembre, 2009
Estonie
Irlande

In European peatlands which have been drained and cut-over in the past, re-vegetation often stagnates after the return of a species-poor Sphagnum community. Re-introduction of currently absent species may be a useful tool to restore a typical, and more diverse, Sphagnum vegetation and may ultimately improve the functioning of peatland ecosystems, regarding atmospheric carbon sequestration. Yet, the factors controlling the success of re-introduction are unclear. In Ireland and Estonia, we transplanted small and large aggregates of three Sphagnum species into existing vegetation.

Using palaeoecology to advise peatland conservation: An example from West Arkengarthdale, Yorkshire, UK

Journal Articles & Books
Décembre, 2016
Europe

Globally, peatlands are regarded as important carbon stores and their conservation essential for ensuring continuation of terrestrial carbon storage. Numerous peatlands in particular regions of Europe have been degraded by drainage, burning, extraction, overgrazing and pollution in recent decades, often leading to erosion, loss of peat mass and a loss of a variety of flora. In the UK, some 90% of peatlands can be regarded as degraded.

Bird foraging height predicts bird species response to woody vegetation change

Journal Articles & Books
Décembre, 2010

Accurate a priori predictions of the sensitivity of species to vegetation management depend on an understanding of mechanisms underlying species response. To date information on where birds forage in the vegetation strata has been used to predict bird species response to vegetation change caused by livestock grazing. Profiting from this link between vegetation structural diversity and bird diversity, we test whether this variable, bird foraging height, can be used to predict the impact of a different type of habitat alteration; vegetation encroachment.

Mind the gap: how do climate and agricultural management explain the 'yield gap' of croplands around the world

Journal Articles & Books
Décembre, 2010
Global

As the demands for food, feed and fuel increase in coming decades, society will be pressed to increase agricultural production - whether by increasing yields on already cultivated lands or by cultivating currently natural areas - or to change current crop consumption patterns. In this analysis, we consider where yields might be increased on existing croplands, and how crop yields are constrained by biophysical (e.g. climate) versus management factors. This study was conducted at the global scale.

Assessing the impact of changes in landuse and management practices on the diffuse pollution and retention of nitrate in a riparian floodplain

Journal Articles & Books
Décembre, 2008

In many European lowland rivers and riparian floodplains diffuse nutrient pollution is causing a major risk for the surface waters and groundwater to not achieve a good status as demanded by the European Water Framework Directive. In order to delimit the impact of diffuse nutrient pollution substantial and often controversial changes in landuse and management are under discussion.

Predicting plant species richness and vegetation patterns in cultural landscapes using disturbance parameters

Journal Articles & Books
Décembre, 2007

A new methodological framework for plant diversity assessment at the landscape scale is presented that exhibits the following strengths: (1) potential for easily standardizable sampling procedure; (2) characterization of disturbance regime; (3) use of selected disturbance descriptors as explanatory variables which probably allow for better transferability than site specific land use types--for example, to evaluate the emerging use of energy plants that pose novel management challenges without historic precedence to many landscapes; (4) analysis of quantitative and qualitative aspects of pla