森林公园生态进程特点与规划设计分析

森林公园是当代社会缓解人们身心疲劳不可或缺的场所,也是实现国家“人与自然和谐共生”方略的实践表现。以四川瓦屋山国家森林公园为例,采用文献研读法和对比案例法,定性分析公园水文、地势地貌、植被等生态特点及规划设计方法。旨在促进景观的有效保护和森林公园的可持续发展,保障自然和人类生存环境协调发展。

成都城市空间形态的生态进程与可持续发展研究

通过对成都城市空间形态演变的生态进程以及环境在成都城市空间发展中的生态制约分析,梳理了成都城市发展的历史脉络,展现其内在的规律特性,并在此基础上提出对成都城市空间的可持续发展策略的思考。

生态翻译学视角下中国近代译论“生态”进程研究

随着世界全球化趋势加强,不同国家、民族间的联系也越来越紧密,语言翻译被放在一个日益重要的位置。而在全球气候生态化的大趋势下,胡庚申教授依托中国翻译理论的发展,提出生态翻译学这一概念。该文旨在从生态翻译学视角研究中国近代译论"生态"进程,揭示中国近代翻译理论"生态"发展历程所遵循的客观规律。

中小型城市生态化进程初步研究

论文首先分析了我国中小型城市生态化进程的现状,依据城市生态化水平评价体系指标,将中小型城市生态化进程划分为初级、过渡和高级三个阶段.最后结合我国大多数中小型城市的特点,提出了中小型城市生态化的基本原则及其相应的对策.

关于绿色教育的生态化进程——中国绿色大学系统论

绿色教育源自19世纪的环境教育即野外研究与教学方式。历经前期环境教育的起步、中期环境教育的探索、后期环境教育的持续深化,现已进一步演化成为当代的绿色教育。现代绿色教育生态化进程的中心课题,即是绿色教育的可持续发展和绿色大学的应运而生。关于绿色大学建设的研究与讨论,当前主要集中在以下两个方面:一是绿色大学的系统结构;二是绿色大学的系统功能。

论化工行业生态化进程中的专利布局

随着可持续发展战略的深化,生态化已经成为了各行业发展的重要方向,尤其是一些能耗、污染较为严重的产业,越来越注重生态化发展,例如化工行业,其在发展过程中也诞生了许多的创新科技,而作为行业创新发展重要组成部分的专利,怎样对这种知识产权进行有效的保护一直都是企业发展的核心环节,可以说,化工企业对自身的专利进行合理的布局,会对其发展造成直接的影响,因此,有必要针对其中的专利布局进行系统的分析。

人工促进石灰岩山地侧柏纯林演替理论与实践

对徐州石灰岩山地侧柏纯林生态进程分析,找到了中龄林侧柏纯林生态退化原因,提出人工促进侧柏纯林演替的方向、原则和演替方法,通过开林窗补种演替树种,阐述人工促进演替的长期性、阶段性、连续性的生态营林理念和逐步建立乔灌混交,针阔混交的多树种、多功能较为稳定的和谐森林植物群落理念。用森林生态学原理,采取人工措施,按生态营林方向实现侧柏林进展演替。

The eco-environmental guarantee for China's urbanization process

Studying the change of resources consumption and eco-environmental carrying capacity are of importance to the sustainable development of urbanization.Based on the China's economic and social statistical data from 1950 to 2006,the ecological footprint,eco-logical footprint intensity,ecological deficit and surplus,and eco-environment quality com-prehensive index are calculated,the correlation between urbanization and eco-environmental change is analyzed and the eco-environmental guarantee for China's urbanization in 2030 is forecasted.The major results could be summarized as follows:(1) there is a positive linear relation between urbanization and ecological footprint,negative linear relation between ur-banization and ecological footprint intensity,ecological deficit and surplus and the negative exponential relation between urbanization and eco-environment quality comprehensive index.(2) By 2030,the urbanization level will reach 61.32%,the ecological deficit will increase to 42.2866×108 hm2 and the eco-environment quality comprehensive index will drop to 0.3016 on the condition that the total quantity ecological footprint achieves 55.9348×108 hm2.(3) Under the existing urban development pattern,the ecological overload will be more serious in the next 24 years.Constructing the reasonable industrial structure and establishing the intensive resources utilization system to alleviate the eco-environmental pressure are the tough challenges in China's urbanization process.

Exploring harmonious development between urbanization and eco-environment based on climate analysis—A study in Changsha, China

The process of urbanization affects the urban warming.The change of urban warming was investigated by several urbanization factors in Changsha,China.The data of surface temperature(minimum,maximum and mean) of Changsha were analyzed to understand the possible effects of urbanization on the climate of this region owing to the population growth,built-up area expansion and energy consumption increases.The weights of these three factors were calculated by the analytical hierarchy process(AHP).Then,three weights were simulated with nonlinear method to obtain the urbanization development rate which was utilized to reveal the influence of the urbanization factors on the surface temperature.The result shows that there is a significant upward trend in the urban temperatures of Changsha.The temperature increase seems to be closely related to the rate of urbanization between 1993 and 2008,and there is an evidential increase trend of the influence on urban temperature by urbanization during 16 years.It is a quantifiable approach measuring the relationship between urbanization and urban eco-environment,and can be applied for the urban sustainability.

Ecotourism certification and its progress in China

Since the middle 1990s, ecotourism certification has been given more and more attention to around the world.As a developing country with abundant ecotourism products, it is necessary for China to adopt certification to ensuresustainable development of ecotourism. But there are few products certificated until now in China. After reviewing thetrend of ecotourism certification in the world and summarizing its theory and method, this paper analyzes the progressand prospect of ecotourism certification in China, and concludes that certification in China is necessary and promising.

The Local Process of Governance in Integrated Water Resource Management： An Example of the Wadi El K^bir Watershed （Northeast of Algeria）

Alternatives to the sectoral and public policies and regulations of environmental and water resources＇ protection, and the experiments of integrated management have been rapidly multiplied since the year 1990. Water constitutes a principal stake of these environmental policies in the majority of the countries and especially in the countries of North Africa as Algeria, where this resource is threatened by repeated dryness and by the impact of the climate change. The integrated water resource management reflects today the world tendency of the governments to exploit and preserve this resource by a way based on a process of governance, which passes by the dialog of diversified actors （various sectors）. According to this policy and to the promulgation of the Algerian National Report on State effective implementation and coordination mechanisms are required. How this principle of integrated water management will be executed with various scenarios in Algeria and what are the main difficulties that can be met？ Or, more exactly, what are the variables that can influence the operation of the local water process governorship？ This analysis will be carried out through the example of the Wadi El K6bir watershed located in the northeast of Algeria, which is real natural area of water supply that feeds the communities, the natural and artificial basins, and preserves the perenniality of the existing natural ecosystems especially the one of the natural park classified by the United Nations Educational Scientific and Cultural Organization （U.N.E.S.C.O） in 1989 as the inheritance of humanity and six other sites classified according to the Ramsar convention as wetlands of international importance to be preserved.

Thermodynamic performance of Dual-Miller cycle(DMC) with polytropic processes based on power output, thermal efficiency and ecological function

This study reports a new model of an air standard Dual-Miller cycle(DMC) with two polytropic processes and heat transfer loss.The two reversible adiabatic processes which could not be realized in practice are replaced with two polytropic processes in order to more accurately reflect the practical working performance. The heat transfer loss is taken into account. The expressions of power output, thermal efficiency, entropy generation rate(EGR) and ecological function are addressed using finite-time thermodynamic theory. Through numerical calculations, the influences of compression ratio, cut-off ratio and polytropic exponent on the performance are thermodynamically analyzed. The model can be simplified to other cycle models under specific conditions, which means the results have an certain universality and may be helpful in the design of practical heat engines. It is shown that the entropy generation minimization does not always lead to the best system performance.

A generalized model of island biogeography

MacArthur and Wilson's equilibrium theory is one of the most influential theories in ecology.Although evolution on islands is to be important to island biodiversity,speciation has not been well integrated into island biogeography models.By incorporating speciation and factors influencing it into the MacArthur-Wilson model,we propose a generalized model unifying ecological and evolutionary processes and island features.Intra-island speciation may play an important role in both island species richness and endemism,and the contribution of speciation to local species diversity may eventually be greater than that of immigration under certain conditions.Those conditions are related to the per species speciation rate,per species extinction rate,and island features,and they are independent of immigration rate.The model predicts that large islands will have a high,though not the highest,proportional endemism when other parameters are fixed.Based on the generalized model,changes in species richness and endemism on an oceanic island over time were predicted to be similar to empirical observations.Our model provides an ideal starting point for re-evaluating the role of speciation and re-analyzing available data on island species diversity,especially those biased by the MacArthur-Wilson model.