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Displaying 471 - 475 of 1195Evaluating the role of ecosystem services in participatory land use planning: proposing a balanced score card
The application of the ecosystem services (ES) concept in land use planning has great potential to enhance the awareness of planning actors on their interactions. At the same time it can contribute to improve the linkage between the role of land use patterns and the understanding of land system functioning and its contribution to human well-being. The concept should be developed in a way that can be applicable in socio-ecological systems where nature and society are capable of enhancing their roles mutually.
Sampling for landscape elements—a case study from Lower Saxony, Germany
The estimation of coverage, i.e., the proportion of the total area in a study region covered by a given target class, is essential to many aspects of environmental monitoring. We analyze and compare the efficiency of different sample-based approaches for the estimation of coverage of different land cover classes from aerial imagery in a case study in Lower Saxony, Germany on the basis of the estimated standard errors.
Characteristics, suitability and recommendations for management of land in acid sulfate soil-affected brackishwater ponds for tiger prawn (Penaeus monodon) culture in Luwu Regency, Indonesia
Luwu is one of the regencies located on the east coast of South Sulawesi Province, Indonesia which has large brackishwater ponds area, but it has a low productivity of shrimp and fish. Therefore, a study was carried out to know the land characteristics for determining suitability and management of land for tiger prawn (Penaeus monodon) culture in brackishwater ponds to increase the productivity and sustainability. Factors considered in land characteristics are: topography and tidal range, soil quality, water quality and climate.
importance of wetlands in the energy balance of an agricultural landscape
Energy fluxes, including net radiation, latent heat flux and sensible heat flux were determined on clear days during the vegetative period in four types of land cover: wet meadow, pasture, arable field, and an artificial concrete surface. The average net radiation ranged between 123� W� m⁻² at the concrete surface and 164� W� m⁻² at the wet meadow. The mean maximum daytime latent heat ranged between 500 and 600� W� m⁻², which corresponds to an evapotranspiration rate of about 0.2� g� m⁻²� s⁻¹ under the prevailing conditions of the wet meadow.
Still a one species genus? Strong genetic diversification in the world’s largest living odonate, the Neotropical damselfly Megaloprepus caerulatus
Mesoamerican biodiversity is increasingly threatened by anthropogenic destruction of natural land cover. Habitat degradation and climate change are primary threats to specialized forest odonate species that are important model organisms for forest health and defining conservation units. The extreme niche specialization of Megaloprepus caerulatus, the world’s largest extant odonate, makes it well suited as an indicator for changing environmental conditions.