نتایج جستجو برای: economic and ecological conditions
تعداد نتایج: 16947841 فیلتر نتایج به سال:
This resaerch was conducted in order to study the importance of economic, social and touristic to the Anzali wetland, north of Iran. Data was collected through "field research" and "documentary research". Nominal scales, Likert and Guttman scales were used for the compilation of questionnaires. Findings of the present research indicate that the variation of population growth rate in the periph...
Smallholder-dominated agricultural mosaic landscapes are highlighted as model production systems that deliver both economic and ecological goods in tropical agricultural landscapes, but trade-offs underlying current land-use dynamics are poorly known. Here, using the most comprehensive quantification of land-use change and associated bundles of ecosystem functions, services and economic benefit...
the aim of this study was to develop an optimal sustainable forest plantation based on goal programming and analytic hierarchy process (ahp) methods. this study was carried out in guilan province, north of iran. first of all, the ecological capability of the study area for plantation establishment/maintenance was evaluated based on multi-factor method and specific ecological makhdoum model by m...
This study analyzes farmers’ perception of grazing restriction policies, grassland environment and ecological management following the implementation of environmental protection policies in northern China. Understanding farmers’ attitudes and their causes will hopefully aid in the creation and execution of future policies. One hundred and thirty-five households were surveyed at three occasions ...
This study investigates the relationship between macroeconomic conditions and two alcohol-related outcomes--liquor consumption and highway vehicle fatalities. Fixed-effect models are estimated for the 48 contiguous states over the 1975-1988 time period. Alcohol consumption and traffic deaths vary procyclically, with a major portion of the effect of economic downturns attributed to reductions in...
Costa-Pierce (2002) defined "ecological aquaculture" as an alternative model that uses ecological principles and ecosystems thinking as the fundamental organizing paradigm for the development of aquaculture. Ecological aquaculture incorporates—at the outset—the principles of natural and social ecology, planning for community development, and concerns for the wider social, economic, and environm...
Ecologists and economists are increasingly in agreement that ecological and economic systems are linked and that these actually should be viewed as one system. Perhaps because this recognition has been very recent, neither ecologists nor economists have studied the short-term behavior of jointly determined ecologicaleconomic systems that are subject to perturbations stemming from natural events...
Economic Conditions and Child Abuse Although a huge literature spanning several disciplines documents an association between poverty and child abuse, researchers have not found persuasive evidence that economic downturns increase abuse, despite their impacts on family income. In this paper, we address this seeming contradiction. Using county-level child abuse data spanning 1996 to 2009 from the...
peri-urban area development process decreases agricultural land use because of significant trend of city sprawl. in the agricultural sector, goals for sustainability generally include maintenance or enhancement of the natural environment, meeting of human needs for food, economic viability, and social welfare. as agriculture has enormous environmental impacts on peri-urban regions, it is necess...
Ecologists and economists both use models to help develop strategies for biodiversity management. The practical use of disciplinary models, however can be limited because ecological models tend not to address the socioeconomic dimension of biodiversity management, whereas economic models tend to neglect the ecological dimension. Given these shortcomings of disciplinary models, there is a necess...
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