Study on the Collaborative Governance Mechanism of Ecological Environment in Changsha-Zhuzhou-Xiangtan Region under the Green Development Perspective

Natural resources and the environment,environmental capacity of China has been approaching the red alert,and long-term accumulation of ecological debt needs to be solved. The transformation of economic development mode and green economic development path are inevitable choices. The complexity and the pressureof the ecological environment governance force Changsha-Zhuzhou-Xiangtan region to change the ecological governance method. The " government-market-society" is taken as the overall framework,to build a diversified body of eco-environment collaborative governance platform. Through collaborative governance among governments,government-market collaborative governance and government-society collaborative governance,ecological capital stock is improvedin the quantity and quality,thus contributing to benigndevelopment of regional economy and society.

Thoughts on the Promotion and Application of Green Buildings in the Ecological Environment of Colleges and Universities

With the establishment of environmental protection system,protecting the ecological environment and reducing the use of energy consumption have become the mainstream idea in the development structure of green buildings.In the university construction projects,we must also uphold the principle of improving the ecosystem of colleges and universities,and strengthen the level of energy conservation and consumption reduction,to achieve a win-win situation in ecological civilization and university building management.This paper analyzes the value of green building in the ecological environment of colleges and universities and discusses the specific application and application path,for reference only.

Embodiment of "Ecological,Cultural,Landscape,Vigorous" Campus—A Case Study of the Planning of Environmental greening in New Campus of Laiwu Vocational and Technical College

The general situation of new campus of Laiwu Vocational and Technical College was introduced.The guiding ideology was that with the purpose of serving faculties and students as the purpose,the designing will be fully combined with excellent natural environment and campus technology and culture,and with ecological landscape as the major and sustainable development as the aim,striving to highlight the theme and landscape,a comfortable,vigorous,innovative and beautiful outdoor spatial environment would be created.In accordance with the planning principle of "people-orientation,ecology,sustainable development,embodying the characteristics of landscapes,overall planning and varied practices",based on the planning thought of "procession of whole and part,of technology and art,of buildings and environment and of landscaping methods",the overall planning and regional division of constructing "ecological,cultural,landscape,vigorous" campus was proposed,that is,the campus environment would be divided into six functional zones(the entrance door zone,footsteps zone,teaching activities zone,life services zone,athletic activities zone and ecological recreation zone) and ten scenic areas(gate landscape area,scientific and technological culture corridor,ecological recreation area,culture exhibition area,Xiushui Lake scenic area,knowledge park,living landscape area,art exhibition area,mountainous scenic area and sports activities area),and meanwhile landscaping plants were planned.

Ecological environment quality evaluation of the Sahel region in Africa based on remote sensing ecological index

Long-term monitoring of the ecological environment changes is helpful for the protection of the ecological environment.Based on the ecological environment of the Sahel region in Africa,we established a remote sensing ecological index(RSEI)model for this region by combining dryness,moisture,greenness,and desertification indicators.Using the Moderate-resolution Imaging Spectroradiometer(MODIS)data in Google Earth Engine(GEE)platform,this study analyzed the ecological environment quality of the Sahel region during the period of 2001-2020.We used liner regression and fluctuation analysis methods to study the trend and fluctuation of RSEI,and utilized the stepwise regression approach to analyze the contribution of each indicator to the RSEI.Further,the correlation analysis was used to analyze the correlation between RSEI and precipitation,and Hurst index was applied to evaluate the change trend of RSEI in the future.The results show that RSEI of the Sahel region exhibited spatial heterogeneity.Specifically,it exhibited a decrease in gradient from south to north of the Sahel region.Moreover,RSEI in parts of the Sahel region presented non-zonal features.Different land-cover types demonstrated different RSEI values and changing trends.We found that RSEI and precipitation were positively correlated,suggesting that precipitation is the controlling factor of RSEI.The areas where RSEI values presented an increasing trend were slightly less than the areas where RSEI values presented a decreasing trend.In the Sahel region,the areas with the ecological environment characterized by continuous deterioration and continuous improvement accounted for 44.02%and 28.29%of the total study area,respectively,and the areas in which the ecological environment was changing from improvement to deterioration and from deterioration to improvement accounted for 12.42%and 15.26%of the whole area,respectively.In the face of the current ecological environment and future change trends of RSEI in the Sahel region,the research results provide a reference for the construction of the"Green Great Wall"(GGW)ecological environment project in Africa.

The Current Status, Problems and Prospects of Researches on the Carrying Capacities of Ecological Environment in China

Determining the carrying capacity of ecological resources is the key to finding contradictions between human activities and the environment,as well as the links between economic growth,environmental protection and social development.In recent years,the carrying capacity of the ecological environment has been extensively studied at home and abroad.Through extensive literature research and analysis,this paper discusses the current status and main problems of recent research on the carrying capacity of the ecological environment in China.For example,two of the main problems are that:1)the concepts and connotations are not clear enough,and 2)the research content is not systematic enough.This is followed by a summary of the evaluation index system and main calculation methods.Finally,according to the research status and development trends at home and abroad,the possible direction for the development of this research field in the future is proposed.

THE PROTECTION OF THE ECOLOGIC ENVIRONMENT OF THE GREEN CORRIDOR IN THE LOWER REACHES OF THE TARIM RIVER

The Green Corridor in the lower reaches of the Tarim River is not only a unique natural landscape in desert but also an important passageway. Nowadays, the ecologic environment of the corridor is getting worse and worse due to man’s economic activities and the lack of knowledge of the importance of the environment, which is one of is the three environment problems in Xinjiang. The corridor is in great need of planning and managing.

科学绿化视角下高等学校生态校园景观环境分析

基于科学绿化视角,分析了生态校园建设中高等学校校园景观环境存在的问题,对生态校园的景观环境营造方法进行了探索,提出了“共生、共享、共育”的校园生态规划方法,创新了“森林校园、湿地校园、海绵校园”的生态校园设计策略,赋能生态校园景观环境设计方法创新与新路径和新探索模式。

Green Barriers： Obstacle or Stimulation ？

Most viewpoints in China consider green barrier is one kind of non-tariff barriers imposed by developed countries and is unfair to developing countries. Different from these, this paper points out that green barriers, evolving from the background of sustainable development theory and the principle of environment protection, have positive effect on ideology, international institutional arrangement and innovation stimulation. Demonstrating the rationality of green barriers, the paper puts forward that green barriers should be regarded as the stimulation for technology innovation and industrial restructure rather than obstacles. The best way to surmount the green barriers for Chinese government and enterprises is to implement circular economy and clean production so as to achieve the harmony of trade, environment and economic development.

Landscape Design of Urban Extensive Green Roofs

This study analyzed the structure and ecological characteristics of extensive green roofs in cities, proposed the concept of combining landscape and ecological environment elements, and expounded the guiding role of green roofs in China's future urban design, in order to provide new ideas for the effective development of the ecological and aesthetic functions of the extensive green roofs in the future urban landscape design.

Investigation on the Green Planting Situation of Dongchuan Barren Hills in Kunming City

Dongchuan District of Kunming City has undulating terrain with large fluctuations, fragile ecological environment, low rainfall and high evaporation, coupled with frequent debris flow activities, resulting in very low forest coverage rate in Dongchuan. In this study, a comprehensive and systematic investigation was carried out to the green planting of barren hills in Dongchuan District from January to June, 2016. The results showed that the major planting tree species in the region with an altitude of less than 1 600 m were Leucaena leucocephala, Cupressus torulosa, L. leucocephala, C. torulosa, Celtis yunnanensis, Melia azedarach , among which L. leucocephala had become of pioneer tree species of afforestation in the Dongchuan dry-hot valley. The major planting tree species at the altitude of 1 600-2 500 m were C. torulosa, Sabina chinensis, Alnus nepalensis, C. yunnanensis, and Pinus armandi , and at the altitude of over 2 500 m, the major tree species were Sabina chinensis, Abies georgei var. smithii, P.densata. Based on the investigation, suggestions were proposed for the existing problems in the greening and planting of Dongchuan barren hills, in order to provide certain theoretical basis for the sustainable development of forestry in Dongchuan.

On Construction of Ecological Economic Forests

To consolidate the results of returning cukivated land into forests and realize sustainable development, it is an important way to develop ecological economic forests at a reasonable scale. At the same time, with the improving quality of people＇s lives, we must pay attention to production of pollution-free green fruits. This paper, from the point of ecological economics, takes the example of date trees for example, presenting the connotation of ecological economic forest and main construction technologies, in order to provide basis for the industrial development after returning cultivated land into forests.

Construction and Development of Green Livable Villages and Towns under Low-interference Cycle Strategy

Rural revitalization has multiple strategic significance,including improving the capacity of circular development of villages and towns,meeting the basic material needs of the rural population accounting for more than 50% of China’s total population,feeding the urban demand back,and building the rural ecological environment to make it green and livable,worthy of attention both inside and outside the society.This paper summarized the low-interference cycle strategy of green livable villages and towns by analyzing the spatial composition of villages and towns and the mechanism of circulation among various elements,forming a set of design strategies,which reduces adverse human interference on the ecology and improves the self-sustaining ability of villages and towns.This paper provides relevant reference suggestions for the construction of green livable villages and towns.

基于“生态-气候适应性-游憩”多功能耦合的复合绿地生态网络格局优化

城市生态环境问题日益突出,如何构建多功能耦合的绿地生态网络格局是促进人居环境可持续发展的重要议题。以成都市为研究区,基于“源-汇”理论,综合运用形态学空间格局分析(Morphological Spatial Pattern Analysis,MSPA)、景观连通性指数、电路理论等方法对生物多样性保护、热环境改善、游憩服务构建单因子网络,分析源地、廊道、生态战略点等空间要素特征,形成基于“生态-气候适应性-游憩”多层级、多功能复合生态网络优化格局。结果表明:(1)筛选出“源”-“汇”景观(生态159—29个,气候适应性30—14个,游憩208—40个)。生物迁徙廊道在研究区中部、西南部呈团簇状分布;气候适应性廊道呈中部集聚、东西稀疏的分布特征;游憩廊道相对密集,以中心城区为核心向四周扩散。(2)多层级“源-汇”景观网络中,总长度上,游憩廊道>生物迁徙廊道>气候适应性廊道;总面积上,生物迁徙廊道>游憩廊道>气候适应性廊道。一、二级廊道的适宜宽度为生态廊道200、100m,气候适应性廊道100、60m;游憩廊道60、30m。(3)叠加多目标廊道获得生态关键点753个,干扰点2371个。游憩源地中8.18%的面积应退让给生态廊道和气候适应性廊道。多功能耦合的生态网络优化格局可激活不同景观资源的潜在价值,对协调生态保护与城市发展的双向需求,实现绿地资源在城市空间中的最优配置具有重要意义。

New Concept of Animal Underpass - Green Bridge

In Poland, the ecological corridor map overlaps with forests, as well as with the road network. The police have recorded near a 100% increase in animal mortality over the last decade. In most cases, bridges automatically serve as passages for animals, even if they have not been considered and designed for such a role. The following facts are importand: silence is positive for animals, natural guides are better then fences and walls, gentle lighting moderates car lights at night. Therefore, the semi-transparent canopy-type noise screens should be used, as well as olfactory tracks. The solution proposed here is beneficial for both the environment and road users. For the proper functioning of the bridge, it is crucial to take into consideration that animals are more efficiently guided by their smell than by channelling fences. However, the commonly used fences would also be provided. Olfactory traces can come in two kinds: animal faecal matter and mating scents. In a natural habitat, decreasing the immediate proximity between animals and humans should also be considered. A multi-criteria analysis was conducted to prove benefits both in terms of bridge maintenance effort and the impact on the environment. The criteria were selected on the basis of expert opinions.

VERTICAL TURF FOR GREEN FACADES:A VERTICAL GREENERY MODULAR SYSTEM INTEGRATED TO THE BUILDING ENVELOPE

Research has shown the environmental benefits of green envelopes,as well as performance in terms of energy efficiency.To date,there is no analysis of the economic sustainability of these systems,which has allowed the realization of a few,albeit very well known,examples.The research has identified a green modular system integrated into the building envelope,designed to facilitate installation and maintenance,with competitive performance compared to other existing solutions;a system that wants to improve performance and flexibility of vertical applications,experimented on buildings,on the market,and able to adapt,above all,to the needs of the building process.It is important to distinguish architectural aesthetic requirements from those of the building process;the former aim to have an authentic vertical garden,with different kinds of plants where nature dictates the rules,the latter aims to achieve the economic sustainability of vertical greenery systems.This paper provides an analysis of a technique based on the installation of plant bearing modular panels with turf on substructures also provided with a micro-irrigation system,which allows the construction of a modular coating,characterized by reduced thickness,that can also be integrated with other materials;installation is quick and simple,since the panel comes perfectly planted on site.In addition to that it allows,from a botanical point of view,resorting to types of grass selected with a view to climate,exposure,environmental adaptability,color and shape.A comparative analysis of this green façade is also presented compared to other existing case studies,from a constructive and managerial point of view,highlighting both its economic and architectural advantages.

我国生态环境治理对经济高质量发展影响的实证研究

生态环境治理能力现代化是生态环境与经济实现协调发展的保障。论文深入研究了我国生态环境治理对经济高质量发展的影响,通过构建生态环境治理指标体系,以绿色全要素生产率作为经济高质量发展的代理指标,以生态环境质量改善和生态环境治理保障作为中介变量进行实证。研究发现,生态环境治理能够促进经济高质量发展,但具有区域异质性。生态环境质量改善和生态环境治理保障具有中介作用。最后建议各地区加大绿色生态环境治理建设、因地制宜开展生态环境治理工作、各部门注重生态环境质量改善和完善生态环境治理保障。

金融生态环境对企业绿色技术创新的影响

良好的金融生态环境是企业绿色技术创新的有力保障,对于促进社会经济持续健康发展具有重要意义。基于2012—2021年201个地级及以上城市和1625家上市企业相关研究数据,考察金融生态环境对企业绿色技术创新的影响及作用机制。研究发现:金融生态环境能够正向促进企业绿色技术创新,且人才资源集聚、政府治理水平和金融发展程度均能发挥部分中介作用。异质性检验发现:非中心城市、初期创立阶段、强竞争力行业与高技术行业企业绿色技术创新能力受金融生态环境的驱动效应更强。据此,可以通过打造金融生态产业集聚地、推动多主体金融生态服务落地、发挥企业绿色标杆引领作用,促进企业绿色技术创新。

基于街区小气候环境冬夏协同优化的城市绿地生态网络精准修复

越来越多城市绿地生态网络建设进入存量更新和结构性优化并存发展的阶段,生态安全优先基础上如何进一步提升城市绿地生态网络的多种生态系统服务功能是当前风景园林实践研究的重要议题。应对全球气候变化、极端天气多发导致的人居环境宜居性下降问题,目前基于气候适应的城市绿地生态网络规划关注促进自然通风以缓解夏季热岛效应,尚忽视了其冬季可能带来的负效应。从气候调节视角切入,探讨城市绿地生态网络在协同冬夏季小气候环境中的低效空间识别与精准修复技术方法。以江苏省昆山市密集城区的189个街区单元为研究对象,通过遥感反演的方法对其冬、夏季小气候环境进行分析,聚类获得7类小气候特征街区。之后,叠加现状绿地生态网络与计算流体力学模拟风环境结果,提取现状适于通风的生态廊道,从宽度、方向、类型等方面分析其潜在通风效能,耦合街区冬夏小气候环境特征,识别研判现状绿地生态网络在冬夏温湿环境调节上存在的低效问题,并提出冬夏协同的精准修复策略,为优化人居环境宜居性、提升城市绿地生态网络生态系统服务综合效能提供技术参考。

两阶段视角下中国农业绿色发展效率测度、演进特征及空间溢出效应

农业强国建设要求实现“增长、保供、降碳、减污、扩绿”协同发展,基于社会经济生产与生态环境保护两方面测算农业绿色发展效率能够为农业高质量发展策略的构建提供新视角。据此,该研究基于网络DEA模型对中国农业绿色发展效率及两阶段效率进行测度,并分析其基本格局、动态演进与空间差异,而后探究农业绿色发展效率的各类潜在影响因素及其空间溢出效应。研究发现:(1)2005—2021年中国农业绿色发展效率及两阶段效率均未达到最佳前沿面,仍存在进一步提升空间,农业社会经济产出效率总体高于生态环境补偿效率。(2)仅5个省份农业绿色发展效率及两阶段效率在考察期内达到最佳水平,30个省份农业绿色发展效率提升幅度以山东居第一而广西排在最后;农业绿色发展效率总体呈现“东高西低”的分布格局,东北地区整体协调水平最优、东部地区其次、西部和中部地区依次排在第三和第四位。(3)考察期内中国农业绿色发展效率及两阶段效率均处于波动上升态势但演进状态却各不相同,其中农业绿色发展效率的省际差异程度有所降低,社会经济产出效率的极化现象逐渐减弱,生态环境补偿效率则存在明显的两极分化现象。(4)农业绿色发展效率及两阶段效率空间差异显著且以缩小趋势为主,其贡献源主要为组间差异。(5)农业绿色发展效率受到经济、制度、社会和自然等各类因素的综合影响。具体而言,地区经济发展水平的直接效应不明显但存在正向的空间溢出效应,环境规制水平能够显著提高农业绿色发展效率且表现出了正向的空间溢出效应,农村产业结构和城镇化水平虽有助于农业绿色效率提升但各自的空间溢出效应却为负,农业受灾率对农业绿色发展效率存在一定的负向影响却无明显的空间溢出效应。

我国煤矸石山综合治理现状及零碳治理探索

在煤炭资源的开采过程中产出大量煤矸石,粉煤灰等副产品,这些副产品大量堆积引发了一系列次生灾害与环境问题。为解决煤矸石山因堆积产生的一系列灾害,基于国内重要矿区矸石山分布情况,分析其主要灾害,研究其治理经验与成果,探索生态处治煤矸石山坡面稳定的方法,探讨了现存煤矸石山治理的不足之处。结合国内外煤矸石利用与绿色治理新技术,提出1种桩-草协同护坡的零碳治理方式,可为我国煤矸石山资源化利用和生态环境保护提供参考。