منابع مشابه
Mercury in Fish from National Parks
Mercury (Hg) is a toxic, global contaminant that threatens ecosystem and human health. Human activities have increased atmospheric concentrations 3-5 fold during the past 150 years. Airborne Hg enters environmental cycles in complex ways, resulting in the contamination of even remote places. The National Park Service (NPS) protects some of the most pristine and sensitive wilderness in North Ame...
متن کاملParks promoting physical activity: synthesis of findings from interventions in seven national parks.
BACKGROUND We synthesized the results of 7 National Park Service pilot interventions designed to increase awareness of the health benefits from participation in recreation at national parks and to increase physical activity by park visitors. METHODS A content analysis was conducted of the final evaluation reports of the 7 participating parks. Pooled data were also analyzed from a standardized...
متن کاملConservation Geographies in Sub-Saharan Africa: The Politics of National Parks, Community Conservation and Peace Parks
Sub-Saharan Africa has been the location of intense conservation planning since the colonial era. Under the auspices of wilderness protection, colonial authorities established national parks largely for the purpose of hunting and tourism while forcibly evicting indigenous populations. Concerns about the ethical and economic impacts of protected areas have generated interest in community conserv...
متن کاملAn examination of the effects of push and pull factors on Iranian national parks: Boujagh National Park, Iran
This article analyses the push and pull factors that bring visitors to the Iranian national parks. The study used a structured questionnaire to collect data on these factors and the socio-demographic profile of the visitors. Survey conducted in Boujagh National Park, an area of 3177 hectares located in the north of the Iran, produced 400 questionnaires. The factor analysis identified four push ...
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ژورنال
عنوان ژورنال: Journal of Geography (Chigaku Zasshi)
سال: 1949
ISSN: 0022-135X,1884-0884
DOI: 10.5026/jgeography.58.135