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1.
Abstract

Based on the current literature, this paper is mainly intended to test whether environmental factors and socio-economic factors will have direct effect on the longevity at county level in China in order to determine the major determinants affecting local longevity level. Using the multi-regression model, we find the result that factors such as temperature, climate, longitude, type of soils, as well as type of agricultural food production play a major role in shaping the longevity at county level, and that socioeconomic factors like infant mortality and gross death rate also have some direct impact on longevity, but the degree of impact is not as strong as the above environmental factors.  相似文献   

2.
Taking 248 A-share manufacturing listed companies in 2006 Shanghai Stock Exchange as example, using "index method" to measure level of environmental protection information disclosure, this paper examines the factors influencing level of environmental protection information disclosure. The findings show that the disclosure level has improved, but the overall level is still low and unable to satisfy information users; there is positive correlation between corporate size, industry type, accounting firm's type and corporate environmental disclosure index. The companies of large scale and heavy pollution and those audited by international "Big 4" and domestic "Big 10" accounting firms have a high level of environmental disclosure, while the profitability and financial leverage has no impact on the disclosure level. Finally some suggestions are put forward to establish environmental information disclosure system in China.  相似文献   

3.
利用2012年在仁寿县采集的555个表层土样(0~20cm),应用地统计学方法分析了该县域尺度表层土壤pH值的空间变异特征;并采用方差分析和回归分析量化主要影响因素对土壤pH值空间变异的影响程度。结果表明:研究区土壤pH值在4.02~8.14之间,平均为6.80,总体上以中性和碱性土壤为主;变异系数为14.48%,属中等程度的空间变异性。地统计分析表明,研究区土壤pH值变异函数的最佳理论模型为球状模型,具有中等程度的空间自相关性,且空间自相关范围较大。方差分析和回归分析表明,土壤类型、成土母质和土地利用方式是显著影响土壤pH值的主要因素。其中,成土母质和土地利用方式分别能独立解释76.2%和4.8%的土壤pH值空间变异。土壤类型的解释能力与分类级别有关,土类、亚类和土属可分别独立解释41.3%、57.3%和83.7%的土壤pH值空间变异,因而能反映成土过程和母质特性的土属是研究区土壤pH值空间变异的主控因素。研究结果可为川中丘陵县域尺度土壤pH空间变异分析及区域生态环境管理与建设提供有益参考。  相似文献   

4.
基于不同尺度的湘鄂赣地区传统村落空间分异及影响因素   总被引:1,自引:0,他引:1  
分析区域传统村落的空间分异及影响因素,可为传统村落的整体保护与分区保护提供理论支撑,也可为制定保护政策提供科学依据。以湘鄂赣地区550个传统村落为研究对象,运用空间分析方法和数理统计方法,从市域、县域两个尺度探讨传统村落的空间分异及影响因素。结果表明:湘鄂赣地区传统村落具有分布广泛、局部集中的特征,分布形态呈集聚型,且县域尺度的集聚特征比市域尺度更明显;江汉-洞庭湖平原为低低集聚区域,传统村落分布稀疏。在两个尺度上,传统村落数量均与平均海拔、年均降雨量呈正相关,与河流密度、年均气温、公路密度、城镇化率、人均GDP、人口密度呈负相关。平均海拔、公路密度在市域尺度对传统村落的分布影响显著,年均气温、年均降雨量、人均GDP在县域尺度对传统村落的分布影响显著。自然地理因素是湘鄂赣地区传统村落形成的环境基础,并通过影响社会经济活动进而影响传统村落的保存。  相似文献   

5.
在县域尺度下,以长江经济带719个县(市)作为空间研究单元,构建以信息化发展环境支撑、信息基础设施建设水平、信息技术创新支撑、信息网络消费水平4个层次9个具体指标的信息化水平评价体系,运用均方差决策法、空间插值、空间自相关分析、核密度估计等方法分析长江经济带县域信息化水平的空间分布特征以及影响因素。研究表明:(1)从空间聚类分布上看,长江经济带信息化水平东西地区差异显著,呈现出一个核心发展片区,多个副核心中心,整体由东部沿海向西部内陆递减的空间格局;(2)从空间关联格局上看,长江经济带信息化水平存在空间集聚现象。以显著HH区与显著LL区为主,显著HH区主要在金华、绍兴、温州、苏州、南通、常州等地区的县(市)分布;显著LL区主要在全椒县、和县、枞阳县等分布;(3)从核密度估计上看,随着搜索半径的扩大,长江经济带县域信息化水平空间层次性趋于明显,由最初长三角地区的两个高密度值区转变为多核心-边缘结构,最终形成高密度值片区;(4)从影响因素的解读看,区位条件的差异化影响明显,经济基础的支撑作用强,工业化、科技化进程与信息化水平相匹配,政策的引领作用强但不同水平区作用效果不一,人才与科技支撑在中西部地区需要大力提升。  相似文献   

6.
To promote modern agricultural equipment level is one characteristic of constructing and developing modern agriculture in China.This paper makes up stepwise linear regression analysis model of influence factors of modern agricultural equipment level,and chooses rural labor,per capita income of rural residents,rural investment,proportion of people at secondary education level and at higher level in per hundred rural labor force and arable land area as independent variables,and total power of machine as induced variable.The major results show that the relativity of modern agricultural equipment level,rural investment and education level of peasants is remarkable,and they are the major influence factors of modern agricultural equipment level.Raising investment level of rural infrastructure construction as well as and research and development and promotion of advanced and applicable modern agricultural equipment,improving quality and education level of peasants can accelerate the development of China’s modern agricultural equipment effectively in the process of agricultural sustainable development.  相似文献   

7.
在通过可达性方法确定长江中游城市群县域范围的基础上,运用熵值法从人口、经济及社会3个子系统对长江中游城市群县域2001、2006及2011年3个时期城镇化发展水平进行综合测度,运用空间自相关对综合城镇化水平的空间演变进行分析并分类,利用回归分析对各类型县域进行驱动因子分析。结果表明:(1)长江中游城市群县域综合城镇化水平持续提升,但各地区间的发展速度差异明显;在子系统演化过程中,以经济城镇化的快速演进为主要特征,其次为社会城镇化,最后为人口城镇化过程。(2)综合城镇化水平及其变化率与城市等级规模、交通及产业结构转型密切相关;各子系统在空间格局演变进程中有着不同的特点,但子系统变化率间具有明显的正相关性。(3)长江中游城市群县域城镇化依据关联性可以划分为"耦合聚集"型、"中心洼地"型、"拮抗聚集"型及"核心边缘"型,各类型县域空间格局演变明显。(4)內源力在"耦合聚集"型县域及"拮抗聚集"县域城镇化进程中具有促进作用,投资力对"中心洼地"型县域影响作用明显,而"核心边缘"型县域主要驱动因子为行政力和內源力;根据各类型县域主要驱动因子提出促进城镇化发展的相应措施,以做到因地制宜地指导各地区城镇化健康发展。  相似文献   

8.
Abstract

To promote modern agricultural equipment level is one characteristic of constructing and developing modern agriculture in China. This paper makes up stepwise linear regression analysis model of influence factors of modern agricultural equipment level, and chooses rural labor, per capita income of rural residents, rural investment, proportion of people at secondary education level and at higher level in per hundred rural labor force and arable land area as independent variables, and total power of machine as induced variable. The major results show that the relativity of modern agricultural equipment level, rural investment and education level of peasants is remarkable, and they are the major influence factors of modern agricultural equipment level. Raising investment level of rural infrastructure construction as well as and research and development and promotion of advanced and applicable modern agricultural equipment, improving quality and education level of peasants can accelerate the development of China’s modern agricultural equipment effectively in the process of agricultural sustainable development.  相似文献   

9.
了解与把握游客的旅游生态补偿支付意愿是实施旅游生态补偿政策的前提之一。以黄山风景区为例,通过问卷调查和条件价值法获取游客的支付意愿信息,并运用二元Logistic回归分析法从游客个人特征、旅游环境影响认知、游客满意度、重游意愿、生态补偿认知等4个方面对游客旅游生态补偿支付意愿的影响因素进行研究,旨在为国家公园旅游生态补偿机制的构建提供依据。结果表明:(1)国家公园游客具有较高的旅游生态补偿支付意愿。86.7%的游客表示愿意在每次游览黄山风景区支付旅游生态补偿金,仅有13.3%的游客不愿意支付。游客的支付意愿与游客自身的角色定位密切相关。(2)从回归结果来看,游客的性别、年龄、重游意愿和补偿必要性认知对旅游生态补偿支付意愿具有显著影响,女性游客支付意愿高于男性,年龄与支付意愿呈显著负相关,重游意愿和补偿必要性认知与其呈显著正相关关系。学历水平、月收入、旅游环境影响认知、满意度和补偿政策认知等变量对支付意愿在10%的显著性水平下不存在显著影响。但从统计结果来看,学历水平、黄山环境质量评价、环境破坏的担心度、生态环境的重要性、满意度对游客的支付意愿有一定的正向作用,游客月收入水平和补偿政策认知与支付意愿呈倒"U"型非线性关系。  相似文献   

10.
Environmentally Extended Input-Output(EEIO)tables have become a powerful element in supporting information-based environmental and economic policies.National-and provincial-level 10 tables are currently published by the National Bureau of Statistics of the People's Republic of China according to well-defined conventions.However,county-level 10tables are not provided as a rule by official statistics organizations.This paper conducts an overview of compiling EEIO tables for environmental and resources accounting at the county level and then answers several questions:First,what kind of data should be prepared for the compilation of county-level EEIO tables?Second,how can we set up comprehensive EEIO tables at the county level?Third,regarding the survey methods and the indirect modeling,which one should be chosen to build EEIO tables at the county level?Finally,what policy questions could such a table answer?EEIO tables at the county level can be used to predict the economic impacts of environmental policies and to perform trend and scenario analysis.  相似文献   

11.
This study aims to investigate the effect of the impact mechanism of climate change on the livestock production at small watershed level and county level with the Multi-level Model(MLM)in Qinghai Province.The result indicated that the gross livestock output value was greatly influenced by the climatic factors of the small watershed level.Higher temperature promoted also by the increase of precipitation,relative humidity and sunshine duration was found to be beneficial to the development of livestock production,except in some areas where temperature rise restrained the development of local livestock production to some degree when exceeding a certain level;besides,the impact of the socioeconomic factors on the livestock output value is obvious at the county level.The gross economic output measured with GDP has some inhibitory effects on the reinvestment of livestock production,while population growth promotes development of livestock production to some degree.The results not only provide scientific basis for the management of livestock production in Qinghai Province,but also provide reference for formulating the policies and adaptation measures targeted at climate change to promote the sustainable development of livestock production in other regions.  相似文献   

12.
企业环境信息披露的外部影响因素实证研究   总被引:3,自引:0,他引:3  
本文以111家重污染行业的A股上市公司为样本,对企业环境信息披露的外部影响因素进行研究,对政府环保投入、公众环保意识、区域经济水平和社会监督水平等因素与企业环境信息披露水平之间的关系进行了理论分析和实证检验.研究结果显示:从整体上来说外部因素与企业环境信息披露水平呈负相关关系,说明现阶段企业环保工作所处的外部环境不容乐观;其中,区域经济发展水平与企业环境信息披露水平显著负相关;政府环保投入与企业环境信息披露水平显著正相关,但其影响程度随着经济发展水平的提高而减小;公众环保意识和社会监督水平对企业环境信息披露水平无显著影响.最后,提出了转变经济发展方式、加强政府宏观调控和完善企韭环境信息披露制度等政策建议.  相似文献   

13.
通过对湖北省二县市农户宅基地流转意愿的抽样调查,采用Logistic回归模型,分析农户宅基地流转意愿与区位条件、农户家庭属性特征及经济发展水平等的关系,找出影响农户宅基地流转意愿的主要因素。研究结果表明:目前愿意将自家宅基地进行流转的农户所占比例略高于50%。按作用程度排序,影响农户宅基地流转意愿的因素依次为非农收入占总收入的比重、距县城距离、对政策了解程度、户主年龄、户主学龄;其中,距县城距离和户主年龄的影响方向为负,其它因素的作用方向为正。从区域角度来看,经济较发达地区农户非农收入已占据主导地位,农户的流动性较强,愿意流转的农户所占比例高于社会经济欠发达地区的比例;影响农户宅基地流转意愿的因素及其作用程度也存在一定的区域差异。  相似文献   

14.
Metropolitan Shanghai, in Yangtze River Delta (YRD), plays undoubtedly the leading role in the economic development in China, and becomes one of the most important population congregation areas. It is also widely regarded as the sixth uprising urban agglomeration in the world. Based on the quantitative studies on basic socioeconomic and demographic profile on the number and transition of population, this paper concluded that the migration is the key factor for population dynamics in YRD. Then, what are the regional economic factors affecting the migration of different cities in YRD? The panel data show that the different wage level is the most important factor that affects the immigration in YRD. Moreover, the ratio of industry sector and service sector has an impact on attracting immigration. However, per-capital GDP and the share of foreign direct investment (FDI) to GDP have dual-side impact: not high per-capital GDP and FDI bring the high immigration.  相似文献   

15.
基于2000~2015年中国各地区面板数据,在构建绿色经济效率测度指标体系的基础上,运用超效率DEA模型测算中国绿色经济效率,通过对所构建模型普通线性回归得到的残差进行Moran’I指数的计算和检验,发现其存在显著的正相关性,并在此基础上利用空间计量模型分析环境规制水平及其他相关因素对绿色经济效率的影响。结果表明:(1)2000~2015年中国东中西部绿色经济效率和环境规制水平均呈波动上升趋势,并且伴有较为明显的空间差异性特征。但随着时间的推移,各区域绿色经济效率与环境规制水平差异有所减小,呈现收敛的趋势。(2)绿色经济效率与环境规制水平基本呈现出东部地区>中部地区>西部地区的空间分异特征,并随着时间推移两者均出现空间结构不断优化、区域差异逐渐收敛等向好趋势。(3)环境规制水平对绿色经济效率的影响呈现一个先促进后抑制的倒“U”型过程,其中,东中西部地区的环境规制水平对绿色经济效率的影响分别处于不同的阶段;经济发展水平、产业结构高级化和科研水平与绿色经济效率呈现显著的正相关关系,而利用外资水平与绿色经济效率则呈现显著的负相关关系。  相似文献   

16.
基于STIRPAT模型的甘肃省环境影响分析   总被引:1,自引:0,他引:1  
能源短缺已成为全球资源环境的主要问题之一,辩明人类活动各因素对能源消费的影响程度,并据此制定和实施可持续的能源消费政策是当前的研究热点。以STIRPAT模型为分析工具,以甘肃省1991~2009年能源消费总量为环境影响指标,分解了人文因素对环境影响的作用大小。结果表明,富裕程度的提高和城市化进程的推进都能够加剧环境的恶化,而且城市化对环境影响的弹性系数是富裕对环境影响弹性系数的278倍。在观测数据范围内,尚未出现环境Kuznets曲线的拐点,仍然处于曲线的上升段。居民消费结构的多样化有利于降低能源消费,其对环境影响的抑制作用略低于富裕对环境影响的加剧作用。最后讨论了STIRPAT模型的优缺点,并指出甘肃省主要相关因子对环境影响的作用机理还有待更深一步的研究  相似文献   

17.
Population growth and development patterns have a significant impact on the environmental performance. The issue of concern is whether population growth or the consumption/production patterns are responsible for environmental deterioration. This paper is an attempt to capture the impact of technological development, affluence, and population on environmental performance index, while previous studies had captured the impact of these three factors on environment only through CO2 emissions. The analysis reveals that technological development and population size have a negative impact on environmental performance, whereas measures to improve affluence have a positive impact. Technological development has increased the production of energy efficient products but at the same time consumption of these products has increased manifold leading to environmental deterioration. Demographic attributes need specific attention to improve environmental performance. This paper concludes on some policy reflections on slowing the population growth as well as persuades individuals and economies to relook to their consumption and production patterns and channelize their efforts to protect the environment.  相似文献   

18.
基于灯光数据的中国县域城市规模时空格局分析   总被引:1,自引:0,他引:1  
为掌握城市规模时空格局演化规律,促进区域协调发展,以平均灯光强度表征城市规模,采取探索性时空数据分析(exploratory time-space data analysis,ESTDA)的研究框架对我国1992~2015年的县域城市规模时空格局进行分析。结果发现:(1)中国县域城市规模的核心-边缘结构与局部空间关联格局较为稳定但趋向动荡,城市规模变化呈现出"稳步增长"、"逐级递增"的特点,城市局部关联较弱,缺乏共同向上跃迁的动力;(2)京汕断裂带、110°E与100°E三条LL断裂带将城市规模空间格局割裂,阻碍了区域协调发展,但城市规模空间格局有可能突破胡焕庸线;(3) 2003年后城市规模的局部空间动态性、增长波动性与局部依赖性增强。东部的局部空间动态性趋于稳定,中西部局部空间动态性开始增强,城市规模增长波动性与局部依赖性重心向南方与东北方向转移;(4)自然因素、交通状况、城市行政级别、政策导向、经济发展水平、人口规模与空间临近效应是影响县域城市规模时空格局的主要因素。研究表明利用灯光数据进行城市规模研究具有科学性与可行性,未来应该着力构筑东中西部互联互动的网络通道,实现区域协调发展。  相似文献   

19.
Increased economic development and industrialization put strain on environment, hence causing pollution and destroying ecosystem. Generally, many different factors affect the environment. These factors include GHG emissions, deforestation, and others. These are all related to human activities on Earth. Other factors that affect environment include population, consumption patterns, and changing life styles of people due to increased income. This study involves the comparison analysis of Pakistan and China on the basis of environmental impact caused by some major driving factors. China is the second largest CO2 emitter in the world with a population of 1.37 billion in 2016 and the second largest economy in the world. Pakistan is ranked as 40th on the basis of nominal GDP. Both the countries observed noticeable growth in economic development for over 55 years, i.e. 1960–2016. This study identifies how population, affluence, consumption, and emissions as the major factors affect environmental pollution and use ImPACT equation, or I = PACT, to calculate the environmental impact and to determine which factors affect the environment the most. The study suggests that the people of both China and Pakistan have experienced increased income for the past 50 years and this increase has led to the changes in their lifestyles, from suitable clothing and quality food to comfortable living and increased energy consumption, thus affecting environment.  相似文献   

20.
中国城市群的兴起催生经济集聚,化石能源消耗增多引发碳排放形势愈加严峻,探索经济集聚对碳排放强度的影响及传导机制至关重要。本文以2004-2016年京津冀、长江三角洲、粤港澳大湾区、成渝城市群的61个城市面板数据为研究样本,探索经济集聚与碳排放强度的关系及影响机制,创新性地使用抗日战争时期各城市是否有铁路通过、2003年各城市是否有机场、各城市历年的国家级经济技术开发区数量作为工具变量解决内生性问题,构建中介效应模型分别检验环境规制和城镇化水平对经济集聚影响碳排放强度的传导机制,并分析经济密度异质性下经济集聚对碳排放强度的不同作用路径。结果表明:①经济集聚与碳排放强度之间呈显著的负向关系,现阶段城市经济集聚水平的提高有利于降低碳排放强度;②相对于低经济密度城市,高经济密度城市经济集聚的降碳效果更为明显;③经济集聚不仅直接对碳排放强度产生影响,还通过环境规制与城镇化水平两条路径间接对碳排放强度产生作用,中介效应显著;④低经济密度城市经济集聚对碳排放强度的间接影响主要是通过城镇化水平来传导,而高经济密度城市经济集聚对碳排放强度的间接影响可以靠环境规制和城镇化水平两条路径来实现。据此本文认为,政府应推动城市群经济以促进区域融合发展,实现企业联动合作以提高经济集聚水平。针对经济密度不同的城市治理手段应有所侧重,高经济密度城市应以增强环境规制力度为主要碳减排手段,而低经济密度城市则应通过提高经济集聚水平,改善城市建设水平并最终达到碳减排的目标。  相似文献   

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