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排序方式: 共有71条查询结果,搜索用时 15 毫秒
1.
第二次土地调查若干问题探讨 总被引:1,自引:0,他引:1
第二次土地调查的目的是全面查清全国土地利用状况,掌握真实的土地基础数据,如何保证调查的质量?文章以江阴市为例进行探讨。 相似文献
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Questionnaires were completed by 2306 beach users at 19 Welsh beaches with respect to beach selection parameters. The modal group of respondents was female aged 30–39. Beach choice was primarily determined by clean litter-free sand and seawater, followed by safety. Refreshment facilities and beach awards were deemed minor considerations by the public when choosing a beach to visit. Approximately 58 per cent of respondents were aware of beach award and rating schemes. Of coastal visitors interviewed for this paper, 67 per cent rated a beach as 'important' or 'very important' to their holiday, with just 2 per cent replying that they were unimportant. 相似文献
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农地整理对农户农地投入意愿的影响研究——基于农地整理区域农户问卷调查的实证分析 总被引:2,自引:0,他引:2
研究农地整理对农户农地投入意愿的影响,对完善农地整理绩效评价和农地整理政策意义重大。依据湖北省3个县(市、区)的188份农地整理区域农户抽样调查数据,构建Logistic模型进行农地整理对农户农地投入意愿的影响分析。结果表明:(1)农户对农地整理的满意度是影响农户流动资本投入意愿和固定资本投入意愿的关键因素,农户对农地整理的满意度越高,其流动资本投入意愿越弱,固定资本投入意愿越强;(2)农地整理的效果在不同土地规模、不同年龄和不同兼业类型农户中有所差异,土地规模大、非老龄、纯农户以及第一类兼业农户的固定资本投入意愿更强。 相似文献
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校园作为城市高密度地区的典型区域,建筑密度高、道路错综曲折、灾后疏散难度大。以南京中心城区某高校为实证研究案例,展开问卷调查;采用皮尔逊卡方检验法,对校园人群安全意识及疏散行为和性别、年龄、受教育程度及参加疏散演练次数等人员特性信息进行交叉分析,得到存在相关性的变量组;基于Logistic回归模型,建立了人群特征、安全意识评价指标对校园人群疏散行为及心理影响的评价模型,识别疏散行为影响因素,以及各因素的影响程度大小。结果表明:年龄、性别以及参加过疏散演练的次数是影响人群安全意识及疏散行为的显著相关因素,学历是相关因素;地震灾害下受访人群对避难场所的选择偏好为:场地型避难场所>建筑型避难场所>地下空间;参加疏散演练的次数,安全意识、风险认知对灾害发生时的人群疏散行为有显著影响。 相似文献
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China is in the process of establishing a national emissions trading system (ETS). Evaluating the implementation effectiveness of the seven pilot ETSs in China is critical for designing this national system. This study administered a questionnaire survey to assess the behaviour of enterprises covered by the seven ETS pilots from the perspective of: the strictness of compliance measures; rules for monitoring, reporting and verification (MRV); the mitigation pressure felt by enterprises; and actual mitigation and trading activities. The results show that the pilot MRV and compliance rules have not yet been fully implemented. The main factors involved are the lack of compulsory force of the regulations and the lack of policy awareness within the affected enterprises. Most enterprises have a shortage of free allowances and thus believe that the ETSs have increased their production costs. Most enterprises have already established mitigation targets. Some of the covered enterprises are aware of their own internal emission reduction costs and most of these have used this as an important reference in trading. Many enterprises have accounted for carbon prices in their long-term investment. The proportion of enterprises that have participated in trading is fairly high; however, reluctance to sell is quite pervasive in the market, and enterprises are mostly motivated to trade simply in order to achieve compliance. Few enterprises are willing to manage their allowances in a market-oriented manner. Different free allowance allocation methods directly affect the pathways enterprises take to control emissions.
Key policy insights
In the national ETS, the compulsory force of ETS provisions should be strengthened.
A reasonable level of free allowance shortage should be ensured to promote emission reduction by enterprises.
Sufficient information should be provided to guide enterprises in their allowance management to activate the market.
To promote the implementation of mitigation technologies by enterprises, actual output-based allocation methods should be used.
The government should use market adjustment mechanisms, such as a price floor and ceiling, to ensure that carbon prices are reasonable and stable, so as to guide long-term low carbon investment.
7.
天津滨海新区自由贸易区建立与评价 总被引:3,自引:0,他引:3
在经济全球化背景下,特别是中国加入世贸组织之后,中国的保税区面临着向自由贸易区 转型的压力与趋势。自1990 年起天津滨海新区分别建立起了天津港保税区、空港经济区和东疆 港保税区。目前3 个保税区已发展成为中国发展最成功的保税区之一和天津滨海新区的重要组 成部分。尽管存在着功能和空间整合以及政策约束等问题,但无论是现有基础、政策支持和发 展趋势上看,天津滨海新区具有发展成一流自由贸易区的潜力。本文依据自由贸易理论和国外 自由港和自由贸易区发展经验,结合中国保税区发展现状、优势以及与典型自由贸易区存在的 差距,利用模糊综合评价法、层次分析法(AHP) 及问卷调查方法,初步建立起自由贸易区综合发 展水平评价模型和3 级指标体系。以香港自由港为参照,从目标效用度、开放自由度,功能开发 度及环境完善度4 个方面对天津滨海新区3 个保税区发展水平进行总体综合评价。根据评价结 果提出扩大开放自由政策、促进产业发展、完善环境和目标效用等方面的建议,并最终提出天津 滨海新区分阶段分别建设3 个保税区、3 个各自独立自由贸易区和统一的综合型自由贸易区的 “三阶段”方案设想。 相似文献
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In this paper a computerized method for the intensity estimation from macroseismic observations is presented. The successive steps of the MSK intensity scale (2° to 10°) receives weights according to the observations marked on the earthquake questionnaires. These weights are summed for the individual scale steps. The distribution of these summed weights and their relation to an experimentally chosen function of the criterion make it possible to estimate the appropriate intensity value and its reliability. By computer evaluation of earthquake reports an objective comparison of estimated intensities given by different seismologists can be made, provided that uniform earthquake questionnaires are used. The application of this method will result in more homogeneous intensity data. 相似文献