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Displaying 1466 - 1470 of 1605

Quantifying the impact of land-use change to European farmland bird populations

Journal Articles & Books
Diciembre, 2010
España
Europa

The EU has adopted the European Farmland Bird Index (EFBI) as a Structural and Sustainable Development Indicator and a proxy for wider biodiversity health on farmland. Changes in the EFBI over coming years are likely to reflect how well agri-environment schemes (AES), funded under Pillar 2 (Axis 2) of the Common Agricultural Policy, have been able to offset the detrimental impacts of past agricultural changes and deliver appropriate hazard prevention or risk mitigation strategies alongside current and future agricultural change.

Differential evolution algorithm for solving multi-objective crop planning model

Journal Articles & Books
Diciembre, 2010
Sudáfrica
África austral

This study presents four strategies of a novel evolutionary algorithm, multi-objective differential evolution algorithm (MDEA). The four strategies namely, MDEA1, MDEA2, MDEA3 and MDEA4 are adapted to solve the multi-objective crop planning model with multiple constraints in a farmland in the Vaalharts irrigation scheme (VIS) in South Africa. The three objectives of the model are to minimize the total irrigation water (m²) and to maximize both the total net income in South African Rand (ZAR) from farming and the total agricultural output in tons.

Furrow diking in conservation tillage

Journal Articles & Books
Diciembre, 2010

Crop production in the Southeastern U.S. can be limited by water; thus, supplemental irrigation is needed to sustain profitable crop production. Increased water capture would efficiently improve water use and reduce supplemental irrigation amounts/costs, thus improving producer's profit margin. We quantified infiltration (INF), runoff (R), and sediment (E) losses from furrow diked (+DT) and non-furrow diked (−DT) tilled conventional (CT) and strip tillage (ST) systems. In 2008, a field study (Tifton loamy sand, Typic Kandiudult) was established with DT, ST, and CT systems.

Diversity of nematode destroying fungi in Taita Taveta, Kenya

Journal Articles & Books
Diciembre, 2009
Kenya

The diversity of nematode destroying fungi in Taita Taveta, Wundanyi division, Coast
Province, Kenya, was investigated between May 2006 and December 2007 aiming at harnessing
their potential in the biological control of plant parasitic nematodes in the area.
Given that the intensity of land cultivation is continually increasing in the study area, it is
prudent to document the status of the nematode destroying fungi before the remaining
forest habitats are ultimately disrupted. Soil samples were collected from forest, maize/

Developing decision support tools for the selection of “gentle” remediation approaches

Journal Articles & Books
Diciembre, 2009

A range of tools have been proposed to support decision making in contaminated land remediation. From a European perspective it is clear, however, that there are considerable national differences in the decision support process, and more generally in the extent to which this process supports the selection of less invasive, alternative remediation options such as phytoremediation, in situ immobilisation etc. (referred to here as “gentle” remediation technologies).