基于"菱形模型"的资源型城市绿色发展动态评价 ——以鄂尔多斯市为例

坚持绿色发展理念,推动资源型城市绿色转型,急需构建服务于资源型城市转型的绿色发展评价体系,摸清绿色发展现状及其变化,诊断绿色发展存在的问题与面临的制约因素,探索绿色发展实现路径。本文认为,资源型城市绿色发展需要解决好降低传统资源产业依赖和减轻环境影响两大主要问题,而结构转型和增强内源性增长动力是绿色发展的核心。本文构建了适用于资源型城市绿色发展的"菱形模型"框架,并结合资源型城市绿色发展的经济可持续性、环境可持续性、结构转型、内源性增长动力四大要素,构建了服务于资源型城市转型的绿色评价指标体系。以鄂尔多斯市为例,分析了2012—2017年绿色发展的时空变化特征及其障碍因素。结果显示:2017年鄂尔多斯市绿色发展水平整体不高,各区旗以相对较高绿色发展水平为主,经济可持续性目标明显强于环境可持续性目标;2012—2017年间,鄂尔多斯市绿色发展水平略有提升,经济可持续性和内源性增长能力有所提高,环境可持续性水平和结构转型水平略有降低,经济可持续性与环境可持续性的目标协调性显著增加,已逐步形成以东胜-康巴什组成的鄂尔多斯城市核心区为中心的绿色发展空间格局;环境可持续性为该地区绿色发展的首要障碍性因素,经济可持续性的障碍度最弱,环境可持续性和结构转型的障碍度呈持续上升态势,经济可持续性和内源性增长动力的障碍度有所下降。结合各区旗绿色发展的障碍性因素,可以将鄂尔多斯市分为经济增长型、环境提升型、结构优化型和内源动力夯实型四类区域,不同类型区域有不同的绿色发展实现路径。     

Soil fungistasis and its relations to soil microbial composition and diversity: a case study of a series of soils with different fungistasis

Fungistasis is one of the important approaches to control soil-borne plant pathogens.Some hypotheses about the mechanisms for soil fungistasis had been established,which mainly focused on the soil bacterial community composition,structure,diversity as well as function.In this study,the bacterial community composition and diversity of a series of soils treated by autoclaving,which coming from the same original soil sample and showing gradient fungistasis to the target soil-borne pathogen fungi Fusarium gr...     

The role of green innovations,environmental policies and carbon taxes in achieving the sustainable development goals of carbon neutrality

The green innovations, environmental policies, and carbon taxes are the tools to achieve sustainable development goals (SDGs) in the mitigation process. This study is intended to examine the impact of innovation, carbon pricing (CTAX), environmental policies (EP), and energy consumption (ECON) on PM_2.5 and greenhouse gas (GHG) emission for Central-Eastern European countries. The panel effect during 2000–2018 is tested using a dynamic panel data model while the Granger causality approach obtains country-related outcomes. The outcomes reveal that eco-friendly innovations have a more profound effect on carbon mitigation. Environmental policies reduce emissions by 2.7% in the short run and 17.4% in the long run. Similarly, CTAX mitigates GHG emissions by 8.6% in the short-run and PM2.5 by 0.9% and 5.7% in the short and long run. However, urbanization, energy consumption and trade openness are the leading polluters in the region. The main findings remain dominant in the country-specific results and find unidirectional and bidirectional causality evidence among variables. The research concludes that green innovations and strict environmental policy can lead towards achieving sustainable development goals using carbon taxes as a tool on the way.

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Transformation of sewage sludge into activated carbon by molten salt synthesis for adsorption of CO2 and dyes

Environmental Chemistry Letters - Wastewater treatment generates increasing amounts of unwanted sewage sludges, calling for advanced recycling methods. Here, we transformed sewage sludge into...     

Kinetic study on degradation of micro-organics by different UV-based advanced oxidation processes in EfOM matrix

Environmental Science and Pollution Research - Effluent organic matter (EfOM) contains a large number of substances that are harmful to both the environment and human health. To avoid the negative...     

Toughness Improvement of Epoxy Composites Using a Kind of Environment-Friendly Bio-Based Polyester Polyol

Journal of Polymers and the Environment - Epoxy resin (EP) is a thermosetting resin with prominent performances and wide applications. However, the inherent brittleness limits its development in...