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Terrestrial carbon balance in tropical Asia: Contribution from cropland expansion and land management

Journal Articles & Books
Décembre, 2013
Asie
Asie méridionale

Tropical Asia has experienced dramatic cropland expansion and agricultural intensification to meet the increasing food demand and is likely to undergo further rapid development in the near future. Much concern has been raised about how cropland expansion and associated management practices (nitrogen fertilizer use, irrigation, etc.) have affected the terrestrial carbon cycle in this region.

Ecological consequences of the expansion of N₂-fixing plants in cold biomes

Journal Articles & Books
Décembre, 2014

Research in warm-climate biomes has shown that invasion by symbiotic dinitrogen (N₂)-fixing plants can transform ecosystems in ways analogous to the transformations observed as a consequence of anthropogenic, atmospheric nitrogen (N) deposition: declines in biodiversity, soil acidification, and alterations to carbon and nutrient cycling, including increased N losses through nitrate leaching and emissions of the powerful greenhouse gas nitrous oxide (N₂O).

Classification of Leafy Spurge With Earth Observing-1 Advanced Land Imager

Journal Articles & Books
Décembre, 2006

Leafy spurge (Euphorbia esula L.) is an invasive exotic plant that can completely displace native plant communities. Automated techniques for monitoring the location and extent of leafy spurge, especially if available on a seasonal basis, could add greatly to the effectiveness of control measures. As part of a larger study including multiple sensors, this study examines the utility of mapping the location and extent of leafy spurge in Theodore Roosevelt National Park using Earth Observing-1 satellite Advanced Land Imager (ALI) scanner data.

contribution of carbon-based payments to wetland conservation compensation on agricultural landscapes

Journal Articles & Books
Décembre, 2011

This paper evaluates the potential of payments for carbon sequestered through wetland and riparian conservation, to offset the costs of publicly funded wetland conservation programs. In particular, the research focuses on quantifying the value of carbon sequestered in wetland and riparian zones of the Prairie Pothole Region in the province of Saskatchewan.

Spatial controls on dissolved organic carbon in upland waters inferred from a simple statistical model

Journal Articles & Books
Décembre, 2015

Dissolved organic carbon (DOC) concentrations in upland surface waters in many northern hemisphere industrialised regions are at their highest in living memory, provoking debate over their “naturalness”. Because of the implications for drinking water treatment and supply there is increasing interest in the potential for mitigation through local land management, and for forecasting the likely impact of environmental change. However, the dominant controls on DOC production remain unresolved, hindering the establishment of appropriate reference levels for specific locations.

Impact of infrastructure on profit efficiency of vegetable farming in West Java, Indonesia: stochastic frontier approach

Policy Papers & Briefs
Juin, 2014
Indonésie

Infrastructure plays an important role in increasing farm profit, since it reduces transaction costs which affect input and output price. The vegetable farming profit is relatively high although it varies, due to different infrastructure conditions. The study was conducted to analyze the level of profit efficiency due to various infrastructure conditions and to reveal the determinants of vegetable farming profit. The research was conducted in West Java, Indonesia with 192 sample farming activities.

Making the most of our land: meeting supply and demand of soil functions across spatial scales

Conference Papers & Reports
Décembre, 2015
Lettonie
Irlande

The challenges of achieving both food security and sustainability have resulted in a confluence of demands on land within the European Union: we expect our land to provide food, purify water, sequester carbon, and provide a home to biodiversity and to external nutrients. All soils perform all these five functions, but some soils ‘are better at’ supplying selective functions. Functional Land Management is a framework for policy making aimed at meeting these demands by incentivising soil management and land use practices that selectively augment specific soil functions, where required.