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571.
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Wei‐bin You Dong‐jin He Wei Hong Cui Liu Li‐yun Wu Zhi‐rong Ji Shi‐hong Xiao 《Natural resources forum》2014,38(4):296-307
The perceptions and attitudes of local people in heritage sites strongly influence their behaviour related to protecting heritage resources and improving management. In this study, we collected pertinent data through a questionnaire and group discussions to examine local people's attitudes and perceptions toward participation in heritage protection in Wuyishan Scenery District (WSD). Logistic regression was used to identify the factors that influence local people's perceptions of heritage protection behaviours. The results indicate that education level is the most critical factor in local people's initiatives to protect heritage resources. Local people with higher education levels pay more attention to the status of WSD and behave more positively with regard to conservation. Gender and income are relatively important factors in perceptions of heritage. Males have better knowledge of heritage resources than females do, and inhabitants with higher income levels are more likely to participate in protection, especially after WSD was listed as a World Heritage Site. Education level was always a key demographic factor before and after WSD's listing on the Heritage List. Household size was a significant factor before WSD was listed on the Heritage List, but it was not significant after, when household income became a significant factor. 相似文献
573.
Frank Ackerman 《Local Environment》2013,18(2):223-229
Waste management has at least five types of impacts on climate change, attributable to: (1) landfill methane emissions; (2) reduction in industrial energy use and emissions due to recycling and waste reduction; (3) energy recovery from waste; (4) carbon sequestration in forests due to decreased demand for virgin paper; and (5) energy used in long-distance transport of waste: A recent USEPA study provides estimates of overall per-tonne greenhouse gas reductions due to recycling. Plausible calculations using these estimates suggest that countries such as the US or Australia could realise substantial greenhouse gas reductions through increased recycling, particularly of paper. 相似文献
574.
依据地形起伏度研究的理论和方法,充分运用地理信息系统软件的分析功能和制图技术,以1∶50000DEM数据为基础,利用0.01km2的动态格网以街道为评价单元进行空间信息的处理和分析,计算大连旅顺口区的地形起伏度,制成地形起伏度专题地图,划分相应起伏区,分析得出旅顺口区局部地区地形起伏度较大,起伏度指数以中低值为主,并测算出各街道实际用地情况,为本区域经济发展和城市建设提供参考,也为区域制定科学的发展规划提供依据. 相似文献
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Information about the net benefits of land degradation treatment is required at the relevant management level, such as regional, local or site-specific, to assist decision makers in the allocation of funds to soil conservation. In this paper, estimates of regional opportunity costs of erosion and costs of treatment are used to derive benefit-cost ratios to assess the profitability of gully erosion treatment for localities in the wheat-sheep zone of New South Wales. These results are then used to develop site-specific models which predict benefit-cost ratios of treatment from land attributes including gully length, slope, soil type and land use. These predictive models form the basis of a rapid appraisal method to aid soil conservation decisions. 相似文献
577.
分析了2015年重庆市黔江城区2个自动监测站点PM10,SO2,NO2,O3日均值和小时均值,结合同期气象因素,对污染物浓度与气象因素进行分析.表明,PM10、SO2、NO2和O3春季平均值呈显著差异,PM10超标6天,SO2,NO2,O3污染水平较低,未超标;PM10、SO2和NO2呈现早晚双峰型,O3呈典型单峰型;风速与SO2和NO2浓度呈负相关,与O3浓度则呈正相关关系,风速较小时,利于PM10浓度降低,当风速达到一定程度,会导致PM10浓度升高;污染物浓度和相对湿度呈明显负相关;降水对大气污染物有削减作用. 相似文献
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正Introduction Assessment of environmental health effects arising from exposure to multiple substances is often very challenging.This is particularly true when humans are exposed to a mixture that contains both beneficial and harmful substances.A good example relates to the risk and benefits of fish consumption. 相似文献