模型试验研究碎石土斜坡优先流机理

通过自制的试验装置,模拟天然降雨过程,研究碎石土斜坡优先流的形成机理以及优先流对碎石土斜坡地下径流的影响,为揭示降雨诱发碎石土斜坡变形破坏机理提供理论依据和数据支撑。研究了颗粒组成结构、降雨历程、地下水、干缩、冻融交替等因素对碎石土斜坡优先流的影响,以及优先流对碎石土颗粒组成结构、碎石土斜坡地下径流的影响,揭示碎石土斜坡优先流的形成机理。通过染色示踪试验,揭示了碎石土斜坡优先流的形态和分布特征,为碎石土斜坡优先流的进一步量化研究提供依据。     

重庆秀山锰矿业发展的现状、问题与对策

近几年,秀山锰矿业的快速发展对秀山经济发展做出了巨大贡献,但在发展过程显现出来的产业链条短、科技水平低、企业规模小、布局分散、管理混乱、污染严重等问题同样不可忽视;文章从调整产业结构,延长产业链条、走节约发展道路,发展与环保并重、加强资源管理,规范锰业发展等三个方面进行分析,为政府决策提供有益参考.     

Correction to: Characteristics,decoupling effect,and driving factors of regional tourism’s carbon emissions in China

Environmental Science and Pollution Research -     

Cell-shape assemblage and nanostructure of akaganéite bioformed in FeCl2 solutions

Environmental Science and Pollution Research - Akaganéite (β-FeOOH) with a tunnel structure typically occupied by chloride can undergo anion-exchange reactions in aqueous solutions for...     

页岩气油基钻屑脱油灰渣资源化利用进展

针对页岩气开发过程中产生的油基钻屑在堆放、运输和处理过程中均有可能对环境造成危害的问题,研究油基钻屑脱油灰渣的处置和资源化利用现状。在实际应用中,各种资源化利用技术由于政策、环保标准、经济性等原因,除水泥窑协同处置技术外,很多技术还不能大量推广应用。文章通过系统调研,阐述了各项技术的原理、优缺点及资源化利用所面临的政策障碍、实际应用及二次污染等问题,指出了资源化利用技术在开发过程中需要加强过程污染控制、开展相关政策和标准制定、提高产品高附加值等方面研究。     

Green energy mismatch,industrial intelligence and economics growth: theory and empirical evidence from China

Environment, Development and Sustainability - With the continuous uptick in world energy consumption, green energy plays an increasingly significant role in alleviating energy depletion and...     

Hydrochemical characteristics and quality assessment of shallow groundwater in Yangtze River Delta of eastern China

Environmental Science and Pollution Research - Water resource is in high demand within the Yangtze River Delta, given its developed economy. Long-term exploitation of this resource has posed risks...     

Study on mechanical properties and microstructure of recycled fine aggregate concrete modified by Nano-SiO2

Journal of Material Cycles and Waste Management - In this study, the effects of different contents of Nano-SiO2 (NS) on a slump, compressive strength, splitting tensile strength, flexural strength,...