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91.
抓住呼伦贝尔市建设生态市的历史机遇,促进辉河国家级自然保护区的全面发展 总被引:1,自引:0,他引:1
当前呼伦贝尔市正在进行生态市建设,本文就辉河自然保护区在生态环境建设中发挥的作用及其需要采取的措施作了简要分析。 相似文献
92.
为切实做好长江经济带生态环境保护工作,基于HJ 913-2017《自然保护区管理评估规范》对长江经济带120处国家级自然保护区的管理状况进行评分.以评估结果为基础,评价了自然保护区管理状况的影响因素,并提出了提升自然保护区管理质量的建议.结果表明:①长江经济带国家级自然保护区的管理状况总体较好,平均得分为81.41分.从分布地区来看,经济较发达的地区,国家级自然保护区的管理状况相对较好;从建立时间看,评估总得分与国家级自然保护区的建立时长呈正相关;从规模看,评估总得分与国家级自然保护区的面积大小呈负相关;从自然保护区类型看,野生植物类型保护区的管理状况要优于野生动物类型.②从管理基础、管理措施、管理保障、管理成效、负面影响5项评估内容来看,管理基础得分相对较高,管理保障得分相对较低.③从全部指标的评分情况来看,保护对象变化和资源调查2项指标的得分相对较高;开发建设活动影响、专业技术能力、机构设置与人员配置、动态监测4项指标的得分相对较低.④Spearman相关分析表明,与评估总得分显著相关的指标为巡护执法、日常管护、专业技术能力、管护设施.研究显示,当前国家级自然保护区的机构设置、专业人才队伍建设、监测体系和开发建设活动影响是制约其管理质量提升的主要因素. 相似文献
93.
城市生态空间冲突分析与系统优化方法 总被引:2,自引:2,他引:0
为适应国土空间整合理论方法的迫切需求,建立由冲突源、冲突区、冲突影响组成的城市生态空间冲突分析框架,其案例应用表明:城市生态空间的社会经济第一冲突源并不突出,政策驱动力构成首要冲突源;城市汇水区渗透性能下降,产流增加,汇流速度加快,形成上游高地型、中下游沿岸型、下游低洼型及沿山型等4种冲突类型,采用城市雨洪模型(SWMM)辨识出4种内涝区及分布类型;针对冲突源、空间优化核心和末端排水建立城市生态空间系统优化目标体系,重点提出“点线面”结合的空间优化核心路径。研究为国土空间整合提供理论与方法支撑,并涵盖国际雨洪管理演替过程,有助于对当前大规模土地开发转型及海绵城市建设理念的本土认识。 相似文献
94.
Emotional appeal in recruitment advertising and applicant attraction: Unpacking national cultural differences 下载免费PDF全文
We investigated the impact of the type of emotional appeal (ego‐focused vs. other‐focused) used in recruiting advertisements on applicant attraction to firms through two experimental studies across three countries (the United States, China, and Singapore). In Study 1, we made a traditional cultural comparison between the United States and China, whose dominant cultural values are characterized by individualism and collectivism, respectively. We found applicants in the United States were more strongly attracted to firms whose recruiting advertisements were based on an ego‐focused emotional appeal, while applicants in China were more attracted to firms that used ads with an other‐focused emotional appeal. Study 2 was conducted in bicultural Singapore. We primed bicultural applicants to be either the individualistic or collectivistic aspect of their cultural heritage. Applicants with individualist priming were attracted to recruiting advertisements with an ego‐focused emotional appeal, whereas applicants with collectivist priming were attracted to advertisements with an other‐focused emotional appeal. In addition, both studies revealed that a job applicant's regulatory focus (promotion vs. prevention) mediated the influence of national culture on the relationship between type of emotional appeal and applicant attraction to firms. Practical implications and suggestions for future research also are discussed. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
95.
我国大陆地区电器电子产品报废量预测研究 总被引:7,自引:1,他引:6
随着我国电器电子产品的报废量不断增长,准确预测报废量及其分布对回收网络体系规划研究十分关键.本文利用Gompertz模型及保有量系数法对我国电器电子产品报废量进行建模,在验证预测模型及结果准确性的前提下,对全国31个省2003—2020年电视机、电冰箱、洗衣机、空调及电脑的报废量进行预测,并对5种家用电器报废总量构成、时间序列及空间分布进行分析.结果表明,到2020年,我国5种家用电器报废量将达到20.3亿台,广东省以1794万台报废量列居全国首位,上海市以1083台·km~(-2)的报废密度列居首位;按现有回收处理规模,2014年全国仍存在103万t待处理缺口.最后对废旧电器电子产品拆解处理产能布局提出了合理化建议,为我国的家用电器回收网络规划提供参考. 相似文献
96.
Abstract: Marine protected areas (MPAs) are a popular conservation strategy, but their impacts on human welfare are poorly understood. To inform future research and policy decisions, we reviewed the scientific literature to assess MPA impacts on five indicators of human welfare: food security, resource rights, employment, community organization, and income. Following MPA establishment, food security generally remained stable or increased in older and smaller MPAs. The ability of most fishing groups to govern MPA resources changed. Increased resource rights were positively correlated with MPA zoning and compliance with MPA regulations. Small sample sizes precluded statistical tests of the impacts of MPAs on employment, community organization, and income. Our results demonstrate that MPAs shape the social well‐being and political power of fishing communities; impacts (positive and negative) vary within and among social groups; and social impacts are correlated with some—but not all—commonly hypothesized explanatory factors. Accordingly, MPAs may represent a viable strategy for enhancing food security and empowering local communities, but current practices negatively affect at least a minority of fishers. To inform policy making, further research must better document and explain variation in the positive and negative social impacts of MPAs. 相似文献
97.
Gerda R. Wekerle 《Local Environment》2015,20(10):1175-1193
This paper addresses issues of access to land for food production in Toronto by offering fresh perspectives on urban agriculture in the neo-liberal city of the global north. It examines attempts to scale up urban agriculture that emphasise changing the relationships between land access, property and new collaborative relationships among different stakeholders. These initiatives involve renegotiating access to land for growing food between private property owners and landless growers, concomitant shifts in control over valued resources and commercialisation. These shifts are often based on relations of trust within a sharing economy rather than public battles over political decisions to develop urban agriculture lands. Growing food on private lands in the city is political in challenging taken-for-granted ideas and practices of property and urban agriculture. New approaches offer options for training and income, as well as expanding the land base for urban agriculture. Small-scale farming projects are affirmative political manoeuvres. They challenge urban residents to consider land for food production across the categories of public and private property. We document three approaches that challenge current property relations: temporary use of a development site through “soft” squatting; redesignating suburban backyards for farmer training and community-based and private food production; and garden sharing of private home backyards for urban food production and commercial growing. Such initiatives articulate alternative visions of sustainability and food security that rely on principles of collaboration and a sharing economy that challenge prevailing notions of property ownership and food security. 相似文献
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灾害对我国国民经济的作用模式研究 总被引:1,自引:1,他引:0
深入地分析了灾害对我国粮食播种面积、粮食产量以及国民经济生产总值增长的影响,在此基础上总结了灾害对我国国民经济产生影响的基本作用模式。 相似文献