نتایج جستجو برای: ecological criteria of slope
تعداد نتایج: 21185841 فیلتر نتایج به سال:
Considerable information on copper (Cu) ecotoxicity as affected by biological species and abiotic properties of soils has been collected from the last decade in the present study. The information on bioavailability/ecotoxicity, species sensitivity and differences in laboratory and field ecotoxicity of Cu in different soils was collated and integrated to derive soil ecological criteria for Cu in...
1. introduction development of tourism activities is one of the important topics in sustainable development and it has been introduced as a dynamic and growing industry. so, providing a suitable platform for identifying tourist attractions and planning for development them is an essential issue. also, recognition of these attractions and natural talents in each region in order to make proper pl...
Tropical seagrass habitats of the Great Barrier Reef are influenced by a complex suite of parameters. Recently there has been particular interest in the impact of land-derived runoff to the long-term viability of tropical seagrass habitats. Seagrass ecosystems are highly variable and poorly understood. A decision support tool that copes sufficiently with knowledge gaps and uncertainty was requi...
Iran has seasonal rivers because of dry climate, low rainfall and different topography. These river- valleys have main role in forming, genesis, and sustainability of human settlements and provide different ecological services. The main services include beauty, store of green spaces, water supply, reduce and create temperature differences, local air flow and natural ventilation which are part o...
Therefore, this study was to evaluate the ecological potential of Ecotourism development in order to study extensive and focused outing in Shahreza County. In this respect, the ecological model of tourism development assessment was fitted. At first, data of slope, aspect, soil order, bedrock, vegetation, temperature and sunshine hour parameters were obtained, and the appropriate areas maps, fro...
Forage-based cow-calf operations may have detrimental impacts on the chemical status of groundwater and streams and consequently on the ecological and environmental status of surrounding ecosystems. Assessing and controlling phosphorus (P) inputs are, thus, considered the key to reducing eutrophication and managing ecological integrity. In this paper, we monitored and evaluated P concentrations...
EPA Grant Number: R-82868401 Subproject: 001 Center: The Atlantic Slope Consortium––Developing Ecological Indicators for Aquatic Ecosystems of the Atlantic Slope Region Center Director: Robert Brooks Title: Integrated Assessment of Estuarine Ecosystems Investigators: Dennis Whigham, Charles Gallegos, Mark Brinson, Kirk Havens, Anson Hines, Peter Marra, Rick Rheinhardt, Lyle Varnell Institutions...
The purpose of the modern watershed study is to use a regional pilot to select an erosion sub-basin and restore it to preserve the downstream wetland. In this research, Alanza watershed, located in the upstream reaches of Anzali wetland, has been selected as a sub-watershed (pilot) with the aim of investigating the effect of mechanical, biological and biomechanical operations on modern watershe...
As it can take an efficient step towards the preservation and sustainability of such lands due to the preparation, implementation, and reformation of criteria. In District 9 of Isfahan Municipality, mismanagement in the preservation of ecological lands has destroyed gardens and agricultural lands, and has caused the loss of social unity of neighborhoods. Consequently, the study of ecotourism m...
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