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Displaying 616 - 620 of 1605Mercury in European agricultural and grazing land soils
Agricultural (Ap, Aₚ-horizon, 0–20cm) and grazing land soil samples (Gr, 0–10cm) were collected from a large part of Europe (33 countries, 5.6million km²) at an average density of 1sample site/2500km². The resulting more than 2×2000 soil samples were air dried, sieved to
Incentives, land use, and ecosystem services: Synthesizing complex linkages
Incentive schemes are increasingly used to motivate the supply of ecosystem services from agro-ecosystems through changes in land use and management. Here, I synthesize the complex effects of incentives on ecosystem services through their influence on land use and management. Linkages between incentives and land use change, and between land use change and ecosystem services can be one-to-many, many-to-one, and many-to-many. Change in land use and management can affect multiple ecosystem services, with both co-benefits and trade-offs.
Assessing the role of policies on land use change and agricultural development since 1960s in northern Ethiopia
Policy has long been considered as one of the major driving forces for land use change and agricultural development. However, a designated and in-depth study on its interaction with land use change and agricultural development is still very limited. The authors, therefore, attempted to address this issue by using five villages representing three agro-ecologies (highland, midland and lowland) for the period between 1965 and 2007. The study indicated that land policies of the imperial and communist regimes contributed largely to the increase of arable land while a decrease in vegetated land.
Pan-European distribution modelling of stream riparian zones based on multi-source Earth Observation data
Freshwater ecosystems are among the most degraded and threatened globally. A need for systematic assessment of riverine habitats is thus well-documented. Riparian zones are especially important due to the large array of ecosystem and social services they can provide, while also recently gaining a major role in the new European biodiversity policy. In this context, the necessity to gather spatial information on extent, distribution and characteristics of the riparian zones is clear.
Yield and water consumption characteristics of wheat/maize intercropping with reduced tillage in an Oasis region
Higher irrigation quota for conventional farming causes substantial conflicts between water supply and demand in agriculture, and wind erosion near soil surface is one of the major causes of farmland degradation and desertification in arid areas. This research investigated the effect of the amounts of irrigation in combination with tillage practices on soil evaporation (E), water consumption (ET) characteristics, and grain yield performance and water use efficiency (WUE) for wheat (Triticum aestivum L.) intercropped with maize (Zea mays L.) in strip planting in an Oasis region.