排序方式: 共有67条查询结果,搜索用时 15 毫秒
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乌鲁木齐市大气污染治理存在的问题及应对措施 总被引:6,自引:2,他引:6
乌鲁木齐市冬季大气污染十分严重。近几年来,市委、市政府采取了许多措施,但大气环境质量改善的成效并不十分突出。笔者分析了近几年乌鲁木齐市大气治理工作中存在的问题,在此基础上提出了一些解决问题的对策对建议。 相似文献
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广州市水环境网格化管理实施研究 总被引:1,自引:0,他引:1
《水污染防治行动计划》对水环境管理提出新的更高要求.为实现水环境精细化管理,基于计算机空间分析技术,探索建立可逐级细分的水环境网格化管控体系.依据广州市水环境现状,在8种水环境管控网格划分基础上,通过空间与行政尺度耦合,建立215个、1 062个、2 929个三级管控网格,提出重点水体、水生态敏感区、污染物排放等三类水环境网格化管理方案.基于“行政区-汇水区”的水环境网格化管理系统,为水环境管理信息平台开发、实现水环境精细化管理、保障城市水环境安全奠定了基础.最后,总结本方法的优点与不足,为今后水环境网格化管理提供参考依据. 相似文献
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李智华 《湖南环境生物职业技术学院学报》2007,13(1):47-51
在分析“蚩尤故里”湖南新化县丰富的山水文化、历史文化、名人文化、洞穴文化、民俗文化等旅游资源特色和开发利用条件的基础上,提出在其开发旅游资源的一些构想及科学规划的建议.参3. 相似文献
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分析了淄博市城市生活垃圾处理的现状,指出了所存在的问题,结合淄博市城市生活垃圾的特点。提出了新的城市垃圾处理对策。 相似文献
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通过对海浪河流域水环境现状的调查研究,针对海浪河流域水污染防治、饮用水水源地保护、水资源合理利用提出合理化建议,对海浪河流域水环境保护将起到一定的推动作用. 相似文献
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Michel Jan Niklas Cathy Trudinger Jason Lowe Ben Matthews Brd Romstad Christiano Pires de Campos Natalia Andronova 《Environmental Science & Policy》2005,8(6):614
This paper evaluates the influence of different policy-related and scientific choices on the calculated regional contributions to global climate change (the “Brazilian Proposal”). Policy-related choices include the time period of emissions, the mix of greenhouse gases and different indicators of climate change impacts. The scientific choices include historical emissions and model representations of the climate system. We generated and compared results of several simple climate models. We find that the relative contributions of different nations to global climate change—from emissions of greenhouse gases alone—are quite robust, despite the varying model complexity and differences in calculated absolute changes. For the default calculations, the average calculated contributions to the global mean surface temperature increase in 2000 are about 40% from OECD, 14% from Eastern Europe and Former Soviet Union, 24% from Asia and 22% from Africa and Latin America. Policy-related choices, such as time period of emissions, climate change indicator and gas mix generally have larger influence on the results than scientific choices. More specifically, choosing a later attribution start date (1990 instead of 1890) for historical emissions, decreases the contributions of regions that started emitting early, such as the OECD countries by 6 percentage points, whereas it increases the contribution of late emitters such as Asia by 8 percentage points. However, only including the fossil CO2 emissions instead of the emissions of all Kyoto gases (fossil and land use change), increases the OECD contributions by 21 percentage points and decreases the contribution of Asia by 14 percentage points. 相似文献