Rural Domestic Sewage Treatment Model: Case Study Based on Dongying Section of the Yellow River Basin

The 20th National Congress of the Communist Party of China proposed to promote the improvement of urban and rural living environment and build livable and workable villages and beautiful villages. The development and challenges of rural domestic sewage treatment coexist. Based on the field investigation of 15 administrative villages in 3 districts and counties of Dongying City, there is a big gap between the development status of rural domestic sewage treatment and expectations. Investigate rural domestic sewage treatment cases in-depth, and condense four modes of primitive, developmental, mature and advanced in a variety of different rural domestic sewage treatment models for discussion, among which, the village sewage treatment work under the mature mode has achieved remarkable results, and is at the forefront of the current rural domestic sewage treatment. Through the multi-case analysis method, the practical dilemma of sewage treatment in different models of villages is summarized, and the feasible improvement path is explored, which contributes to the ecological protection and high-quality development of Dongying and the Yellow River Basin.

Analysis on the green development of urban agglomeration in the Yellow River basin

After the ecological protection and high quality development of the Yellow River basin became the national strategy,the new idea of river basin development with urban agglomeration as the main body was clarified.Promoting high-quality development of urban clusters in the Yellow River Basin is not only an important practice of the concept of harmonious coexistence between man and nature,but also conducive to exploring new paths of high-quality development that can be copied and popularized.In the process of promoting development,we should adhere to the principle of overall planning and differentiated development.On the basis of constantly improving cross-regional environmental administrative coordination,strengthening the radiation driving role of central cities,and establishing and improving the cross-regional ecological compensation mechanism,we should adopt different measures according to the requirements of ecological priority and green development,so as to form a new competitive advantage that is both unified and distinctive.

Study on High Quality Development Strategy of the Yellow River Basin-Take Rural Development in Zhengzhou, China as an Example

High-quality development of the Yellow River Basin is a development strategy that China has been vigorously promoting in recent years,and it is also an important point to realize the goal of balanced regional development and the Chinese dream in the long term.In the context of the implementation of the strategy,Zhengzhou,as a major city in the central region where the Yellow River flows through,has a strong driving effect on the surrounding counties and cities.At the same time,Zhengzhou’s rural modernization process is gradually accelerated,and the poverty alleviation has achieved remarkable results.Therefore,this paper introduces the development background of the Yellow River Basin region,explores the significance of this strategy for the basin region,and takes the rural construction of Zhengzhou as an example to look into the future development path.

Mathematical Statistics and Spatial Aggregation Characteristics Analysis of Culture, Sports, and Tourism Resources in the Yellow River Basin Based on POI Data

As a priority of China’s regional development strategy in recent years, promoting the ecological protection and high-quality development of the Yellow River Basin is one of the important tasks to boost the country’s economy and also the key to the development strategy in the central region at this stage. High-quality development of the Yellow River Basin based on the perspective of culture, sports, and tourism integration is significant for the regional ecological protection and economic revitalization. In order to measure the development of culture, sports, and tourism resources in the basin, the study applied the CRITIC model in Mathematical Statistics, the fuzzy comprehensive evaluation model, and the entropy weight TOPSIS analysis model. The results indicated that the development of the three resources in the basin varies from region to region, among which Shaanxi, Shandong, and Henan provinces have developed outstandingly while western provinces in China haven’t. In addition, this study identified the spatial geographic extent and analyzed the POI (points of interest) of culture, sports, tourism, and mixed resource based on the data analysis to explore the spatial distribution characteristics and trend of changes in the Yellow River Basin. The study also made suggestions for the development of culture, sports, and tourism resources in the basin from different perspectives based on the developed theoretical model, aiming to promote high-quality development of the area.

A holistic approach to creating a new yangtze river basin protection legislation

The protection of the Yangtze River Basin is a top priority in China,and the National People's Congress(NPC)Standing Committee has started to draft a new protection legislation specifically for the Yangtze River Basin.The Basin forms the epicenter of environmental,social,and economic life.Any efforts to protect the Basin must accommodate several competing interests from a multiplicity of interested parties and stakeholders such as local governments,villages,and business enterprises.Current relevant institutions and organizations are unable to sufficiently ensure environmental protection and green development in the Basin.The NPC Standing Committee must thus adopt a more holistic approach when creating new protection legislations aimed at the Yangtze River Basin.

Spatial-temporal variation and attribution of salinization in the Yellow River Basin from 2015 to 2020

Under the pressure of SDG15.3.1 compliance,it is imperative to solve the land salinization degradation problem in the Yellow River Basin as China’s granary.From the view of geographical scale,six zoning units were divided in the Yellow River Basin with‘climate-meteorology-geomorphology’as the main controlling factor,and a salinization inversion model was constructed for each zoning unit.Appropriate surface parameters were selected to construct a three-dimensional feature space according to the individual geographical zones.Based on the cloud data processing capability of the Google Earth Engine platform,a feature space inversion process was applied for automatic inversion of salinization.Salinization distribution maps of the Yellow River Basin in 2015 and 2020 were obtained at 30 m resolution by classifying the salinization inversion result.The distribution and spatiotemporal variation of salinization as well as the causes of salinization were analyzed.Reasonable prevention and control suggestions were subsequently proposed.This study could also be scaled up to larger and more complex geographical regions.

Multiple pollutants from crop and livestock production in the Yangtze River: status and challenges

The rapid increase in the proportion of cash crops and livestock production in the Yangtze River Basin has led to commensurate increases in fertilizer and pesticide inputs. Excessive application of chemical fertilizer, organophosphorus pesticides and inappropriate disposal of agricultural waste induced water pollution and potentially threaten Agriculture Green Development(AGD). To ensure food security and the food supply capacity of the Yangtze River Basin, it is important to balance green and development, while ensuring the quality of water bodies. Multiple pollutants affect the transfer, adsorption, photolysis and degradation of each other throughout the soil-plant-water system. This paper considers the impact of multi-pollutants on the nitrogen and phosphorus cycles especially for crops, which are related to achieving food security and AGD. It presents prospective on theory, modeling and multi-pollutant control in the Yangtze River Basin for AGD that are of potential value for other developing regions.

黄河流域绿色高质量发展与绿色技术创新的动态关联分析

以黄河流域各省份2011—2020年的数据为研究样本,构建绿色高质量发展的评价指标体系,运用全局主成分—熵权法对绿色高质量发展综合指标进行测度,并采用聚类分析和面板向量自回归模型(PVAR)系统考察黄河流域绿色技术创新与绿色高质量发展水平的动态关联效应。研究结果表明:(1)2011—2020年,黄河流域各省份的绿色高质量发展水平整体呈上升趋势,不同地区的绿色高质量发展水平差异显著。(2)黄河流域的绿色技术创新与绿色高质量发展之间相互影响,各个省份绿色技术创新和绿色高质量发展水平一一对应。(3)黄河流域的绿色技术创新和绿色高质量发展之间存在明显的双向促进关系,且影响效果显著,即绿色高质量发展有助于绿色技术创新的提升,绿色技术创新能推动绿色高质量发展。

黄河流域城市高质量发展空间关联及障碍因子分析

基于新发展理念,构建综合评价指标体系,运用熵值法计算黄河流域61个地级市2010年、2013年、2016年和2019年的高质量发展水平综合得分,并运用自然间断点法、空间自相关和障碍度模型,分析黄河流域城市高质量发展的时空演变规律、空间关联性和障碍因子。结果表明:(1)黄河流域整体高质量发展水平不断提升。根据高质量发展水平将城市分为四大类,其中高水平城市主要为省会和中心城市,较高水平城市分布在中心城市周围,较低水平城市由下游向中上游扩散,低水平城市集聚在中上游。(2)黄河流域总体空间关联性较弱,局部存在集聚效应,东部高值区被高值区包围的高高集聚较明显,西部低值区被低值区包围的低低集聚较明显。(3)黄河流域城市高质量发展障碍因子主要包括入境旅游人数、外资依存度、万人专利申请量、外贸依存度和万人在校生数。基于此,提出黄河流域高质量发展相关建议。

混合式抽水蓄能电站群容量计算研究Ⅰ:短期调峰特征与梯级开发增益

依托常规梯级水电站修建混合式抽水蓄能电站(简称混蓄电站)成为提升电力系统调峰能力的重要途径。混蓄电站即可抽水又可发电的典型运行方式增加了水电基地的灵活性调节能力,为此亟需研究其运行方式以及与原有梯级水电站运行方式间的互馈关系。研究以黄河上游待开发龙羊峡-拉西瓦、拉西瓦-尼那混蓄电站为对象,建立含混蓄电站的梯级水电站短期联合调峰优化模型,分析混蓄电站对原有梯级水电站运行方式的影响,基于理论推导与数值计算两种方法揭示混蓄电站调峰效果的变化特征。主要结论如下:(1)混蓄电站抽水水量经由原有梯级水电站机组下泄,使得非填谷时段原有水电站出力增加,水电站上旋备容量降低;(2)龙羊峡水电站满发流量相对较小、拉西瓦水库调节库容较小以及日综合利用供水流量过大是制约混蓄电站调峰效果的主要因素,发现了综合利用流量影响混蓄电站调峰效果的临界特性,并提出了临界综合利用流量的计算公式;(3)发现并量化了混蓄电站梯级开发模式较单一开发模式所带来的梯级抽水调峰增益现象,并揭示了梯级抽水调峰增益背后所蕴含的“河流梯级反向再造”内在机理。

沿黄城市生态保护与高质量发展耦合协调时空演变分析

为丰富黄河流域生态保护和高质量发展研究,并为沿黄城市经济发展提供对策建议,分别构建生态保护和高质量发展评价指标体系,以60个沿黄地级市为样本单元,采用熵值法对指标赋权并计算2010—2020年沿黄各市生态保护指数、高质量发展指数,采用耦合协调度模型计算生态保护与高质量发展耦合度、协调度并划分协调等级,计算相对发展度以判断生态保护与高质量发展耦合协调类型,分析沿黄城市生态保护与高质量发展耦合协调动态演变情况,结果表明:2010—2020年沿黄城市生态保护与高质量发展协调度大都稳中有升、少数城市呈下降趋势,2020年协调等级整体上还较低,尚有37个城市处于失调状态,生态保护与高质量发展的耦合协调任重道远;从空间上看,沿黄城市生态保护和高质量发展协调度总体上呈现下游>中游>上游的格局,研究时段生态保护与高质量发展协调度平均值大小排序前十位的城市多为沿海城市或省会城市、后十位的城市多为各省(区)的边缘城市,地理位置、资源禀赋、政策扶持程度和经济发展模式等对耦合协调度有重要影响;2020年沿黄城市生态保护与高质量发展耦合协调类型为生态保护滞后型的城市有31个、为均衡型的城市有5个、为生态保护领先型的城市有24个,表明沿黄城市生态保护整体上滞后于高质量发展。

新时代黄河流域水土保持标准体系建设框架研究

为了贯彻落实《黄河保护法》,推动黄河流域水土保持各项工作规范化、标准化,满足黄河流域水土保持事业高质量发展的现实需要,根据《黄河保护法》有关规定,结合新时代黄河流域水土保持工作目标和特点,在全面分析水土保持标准体系建立的背景、意义及必要性的基础上,全面梳理现行的水土保持国家标准体系,广泛征集有关省(区)业务人员和专家的意见、建议,组织专家开展专题研究,提出了包括基础类、规划设计类、治理类、淤地坝类、监测类、监管类、信息化类、试验示范类等8类73项标准(其中沿用原有标准48项、建议新增标准25项)的黄河流域水土保持标准体系建设框架。

黄河流域乡村集群的空间协同发展路径——以黄河滨州段为例

立足于黄河流域生态保护和高质量发展、乡村振兴国家战略在山东的地域性实践背景,基于对黄河流域乡村集群的空间协同发展路径研究,阐释乡村集群的概念并归纳沿黄乡村集群特征,从黄河流域乡村的发展壁垒入手,将乡村集群类型划分为城乡融合型、带状集聚型、组团提升型等3种集群空间模式,提出统筹体系架构与空间优化两层面的协同路径。随后,以《滨州市黄河沿岸国土空间规划》为例,以229个村庄为样本,构建由城乡融合示范区、特色集聚段、门户提升段构成的“一区三段”乡村集群空间格局,提出“尺度嵌合、显隐结合、城乡融合”的空间协同路径,以及空间多尺度的分类传导和规划多嵌套的分级传导体系,以期为黄河流域乡村高质量发展提供可参考的路径模式。

黄河流域水资源-生态-城市-产业协同演进研究

为考察黄河流域水资源-生态-城市-产业协同的动态演进及其地区差异和来源,基于2016—2020年黄河流域76个主要地级市数据,采用协同度模型、核密度估计和Dagum基尼系数及其分解方法进行实证测度。结果表明:处于初级、中级和良好协同的城市数量分别为30个、33个和13个。各城市协同度水平呈现上升趋势,但城市间绝对差异在扩大,相对差异在缩小;除呼包鄂榆城市群外,其他六大城市群协同度绝对差异均呈扩大趋势。黄河上游和下游内部差异呈下降趋势,中游内部差异呈上升趋势;上游和中游间差异最大,且呈现进一步扩大趋势,上游和下游间差异逐渐缩小。呼包鄂榆城市群群内差异最小,关中城市群群内差异最大;关中城市群与山东半岛城市群群间差异最小,晋中城市群与山东半岛城市群群间差异最大。未来应进一步加强要素协同、区域协同,发挥各地区动态比较优势,因地制宜推进黄河流域生态保护和高质量发展重大国家战略深入实施。

黄河流域“水资源-生态保护-高质量发展”空间均衡性诊断

为促进黄河流域空间均衡发展,在测算黄河流域9个省区水资源可承载水平、经济社会发展水平以及生态保护水平的基础上,分析了各省区内部水资源、生态环境和经济社会3个子系统间的耦合协调发展水平,并分别以水与经济均衡、水与生态均衡、经济与生态均衡为子目标,构建了空间均衡性诊断模型,对黄河流域相邻“省区对”进行了空间均衡性诊断,反向追踪各“省区对”空间不均衡的原因。结果显示:除宁夏、甘肃外,黄河流域其他省区内部3个子系统间均已达到初级或中级协调发展阶段;黄河流域上游和下游的相邻“省区对”分别通过了均衡性判别;宁夏、甘肃、山西和内蒙古4个省区严重影响了省区间的均衡性,抑制了黄河流域整体的空间均衡发展。

“双碳”目标下黄河流域绿色技术创新效率评价及影响因素

基于“双碳”目标视角,采用超效率动态网络SBM模型测算黄河流域82市(盟)2011—2021年绿色技术创新的综合效率、科技研发效率及成果转化效率,并利用面板Tobit回归模型检验外部环境因素对三种效率的影响。结果表明:将CO_(2)排放量纳入指标体系后,中下游地区绿色技术创新综合效率得以提升,上游地区效率反而下降;黄河流域绿色技术创新综合效率呈波动上升趋势,科技研发效率起引擎作用;黄河流域绿色技术创新综合效率区域差异明显,成果转化效率差异是综合效率差异的主要来源;经济发展水平、产业结构高级化、人力资本禀赋、对外开放水平、政府支持力度和环境规制强度对三种效率的影响具有区域异质性。建议黄河流域提高绿色技术创新能力,完善创新成果转化平台,推动能源和产业结构升级。

黄河流域生态保护与高质量发展耦合协调性及障碍度研究

为给黄河流域生态保护和高质量发展的政策研究提供参考,以2006—2020年黄河流域九省(区)为研究对象,分别构建生态保护与高质量发展评价指标体系,采用熵值法进行测度,并借助耦合协调模型和障碍度模型,探究生态保护与高质量发展2个系统之间的耦合协调关系及其障碍因子。结果表明:1)黄河流域九省(区)生态保护与高质量发展时序上发展态势良好,但各省(区)异质性明显;2)黄河流域生态保护与高质量发展耦合协调度整体处于上升阶段,但水平仍较低,在时序上经历了濒临失调—勉强协调—基本协调的演变历程,在空间上呈现下游>中游>上游的分布格局;3)黄河流域生态保护与高质量发展耦合协调关系主要受污染治理、生态建设和创新发展三重制约,且各省(区)的主要障碍因子存在差异。

数字技术创新与绿色全要素生产率:来自黄河流域的经验证据

文章采用2011—2020年黄河流域地级市面板数据,在克服内生性问题的基础上,运用双向固定效应模型、面板IV估计等经验分析方法实证考察了数字技术创新对黄河流域绿色全要素生产率的影响。研究表明:数字技术创新对黄河流域绿色全要素生产率具有显著的促进作用,该结论在控制了外生政策冲击、剔除部分样本及缩尾处理后依然稳健。异质性分析进一步表明数字技术创新对黄河流域非资源型城市、中心城市以及中下游地区绿色全要素生产率促进作用更为明显。而机制分析发现绿色技术创新、产业结构高级化和产业协同集聚是数字技术影响黄河流域绿色全要素生产率的三个重要路径。因此,需要加大数字技术创新投入,提升城市数字技术吸收转化能力,为充分释放数字技术环境效应创造有利条件。

物流业与绿色经济耦合协调发展的时空演化与影响因素分析——以黄河流域为例

为了探究物流业与绿色经济之间的协调发展问题,以黄河流域为研究对象,运用熵权TOPSIS法确定二者协调发展的指标权重,构建了黄河流域物流业与绿色经济协调发展评价指标体系,采用耦合协调度模型分析其耦合协调性并对其时空演化特征进行讨论,运用MGWR模型探究黄河流域各省物流业与绿色经济发展耦合协调度的影响因素。结果表明:黄河流域物流业与绿色经济的耦合协调度呈现出上升态势,但处于勉强协调;下游地区的耦合协调度比较高,但是对于周围地区的辐射带动作用没有发挥出来,导致空间差异比较大;五个方面的影响因素都呈现正相关。基于研究结果,提出了黄河流域物流业与绿色经济协调发展的对策。

绿色技术创新、环境规制对黄河流域城市绿色发展的影响机理

推动城市绿色发展不仅是实现“双碳”目标的现实举措,更是实现经济高质量发展的必然选择。黄河流域具有显著的资源、生态和区位特殊性,需协同推进生态保护和经济高质量发展。为探究绿色技术创新在黄河流域城市绿色发展中的作用,该研究选取黄河流域2009—2021年76个地级及以上城市的面板数据为研究样本,基于超效率SBM模型测算城市绿色全要素生产率来反映城市绿色发展水平,从调节作用和门槛效应的视角研究环境规制的作用机理。研究结论显示:①绿色技术创新对黄河流域城市绿色发展有显著促进作用,经过系列稳健性检验后结论仍然成立,且主要通过技术进步来提升城市绿色全要素生产率的增长。②基于环境治理成效的环境规制在绿色技术创新和城市绿色发展间的调节作用整体上不显著,但在上游和中游地区,环境规制的调节作用显著。③环境规制存在显著的双重门槛效应,在推动绿色技术创新影响城市绿色发展中存在一个合理的强度区间,强度过低或过高都会限制绿色技术创新对城市绿色发展的影响效果。④经异质性分析发现,不同区域绿色技术创新对城市绿色发展的影响仍然显著,影响程度的大小从上游地区到下游地区依次递减。基于此,该研究提出,要充分考虑黄河流域的地域特点,树立协同推进绿色创新与经济高质量发展的理念,完善绿色技术创新政策体系,进一步增强绿色技术创新在城市绿色发展中的作用;正确理解环境规制在推动城市绿色发展中的作用,科学合理设定环境规制强度,因地制宜实施环境规制政策,推动黄河流域城市绿色发展。