نتایج جستجو برای: range land
تعداد نتایج: 776847 فیلتر نتایج به سال:
There is increasing evidence that species can evolve rapidly in response to environmental change. However, although land use is one of the key drivers of current environmental change, studies of its evolutionary consequences are still fairly scarce, in particular studies that examine land-use effects across large numbers of populations, and discriminate between different aspects of land use. He...
Most of the works on estimation of land surface emissivity from satellite radiometric measurements are performed at the frequencies d 100 GHz in the past two decades [1-3]. In the frequency range of AMSU-B (89-183 GHz) the land surface emissivity problems draw attention from scientific community recently mainly because of difficulty associated with precipitation retrievals over land. For liquid...
Efforts to curb elephant poaching have focused on reducing demand, confiscating ivory and boosting security patrols in elephant range. Where land is under multiple uses and ownership, determining the local poaching dynamics is important for identifying successful conservation models. Using 2,403 verified elephant, Loxodonta africana, mortality records collected from 2002 to 2012 and the results...
today, the concerns and discussion about bio environmental and land usage changes have been considered seriously. so, the land usage for tourism purposes is considered as a basic subject. one of the reasons of land usage change is tourism activities. regarding to bandar anzali situation (coast region), it attracts the tourists attention to buy land in order to build homes and also attracts the ...
A simple method that incorporates coupling between bath and system and between individual bath modes is proposed. In Ž . the new locally propagating gaussian LPG approximation, the bath is modeled by Gaussians at each system site that propagate in time. Each site couples to others by the overlap of their Gaussians. In a test case with weak but non-negligible coupling, LPG is nearly as rapid as ...
We present some techniques for planning in temporal domains specified with the recent standard languange PDDL2.1. These techniques are implemented in LPG, a fully-automated system that took part in the third International Planning Competition (Toulouse, 2002) showing excellent performance. The planner is based on a stochastic local search method and on a graph-based representation called “Tempo...
For an optimum use of natural resources in the sustainable development trend, there is a need to identify ecological resources in the shortest period of time and minimum possible cost. In this article, we aimed Management ecosystem by Assessment of plant covers changes at Taleghan Township in a twenty year period. Percentage of landscape and number of patch were among the metrics that were calc...
For an optimum use of natural resources in the sustainable development trend, there is a need to identify ecological resources in the shortest period of time and minimum possible cost. In this article, we aimed Management ecosystem by Assessment of plant covers changes at Taleghan Township in a twenty year period. Percentage of landscape and number of patch were among the metrics that were calc...
Harmonisation of land-use class sets should consider both space and time, as the objective should include harmonisation of land-use change in order to analyse environmental processes and problems. Existing systems make only a limited contribution to data harmonisation and data standardisation as they contain many inconsistencies in the adherence to the fundamental principles of classification a...
the analysis of land use utility matrix based on human and natural criteria in residential areas is the necessity and issues that planners in urban and rural areas in terms of access to communication network, central location, weather, noise and etc are a turning point for how optimal use is of resources. the aim of this study is to identify the level of user desirability in rural areas of Bina...
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