Review of Research on the Development of Tourism Resources in Ecological Economic Zone of Poyang Lake

Based on analyzing and summarizing the previous research results,the existing problems in the researches of tourism resources development in the ecological economic zone of Poyang Lake were analyzed. And then the research trend in the future was pointed out.

Evaluation of Fragility of the Economic System in Poyang Lake Ecological Economic Zone

From two aspects,namely the sensitivity of regional economic system to internal and external interference,and its resilience,we establish the evaluation indicator system of fragility of the economic system in Poyang Lake Ecological Economic Zone,and evaluate the internal differences in fragility of the regional economic system,using set pair analysis method. The results show that there is a great difference in fragility of the economic system between different administrative units; the difference in resilience is the major factor responsible for difference in fragility of the economic system in various cities and counties within the region; according to the difference in fragility characteristics,we conduct classification as follows: Nanchang City is a low-sensitivity and high-resilience type; Jiujiang City is a high-sensitivity and high-resilience type; Jiujiang County,Xingzi County,Yongxiu County,Hukou County,Duchang County,Ruichang County,De'an Xian,Wuning County,Pengze County,Leping City, Dongxiang County,Fengcheng City and Gao'an City are a high-sensitivity and low-resilience type; other cities and counties are a low-sensitivity and low-resilience type.

ECOLOGICAL LANDSCAPE EFFECTS OF WINDBREAK SYSTEMS IN DESERT ZONE OF WESTERN CHINA

This paper, by applying the theories of landscape ecology, illustrates the role and mechanism of windbreak system in the establishment and maintenance of oasis ecosystem on the basis of systematic analysis of characteristics and ecological crises of China's desert, and especially of desert zone in western China. Furthermore, direct economic benefits are summarized.

Research and Analysis of Regional Ecological Positioning in Planning Environmental Impact Assessment

The regional ecological positioning of one area is based on the region’s ecological orientation by the country or a larger region.Combined with the region’s natural geographical features,ecological background,main ecological problems,regional ecological structure,pattern,process,function and service,etc.,the position of a certain area in ecological space,structure,process,function and service,etc.is determined through the analysis and research.Regional ecological positioning is an important prerequisite and core basis for regional ecological impact assessment.However,in the current regional ecological impact assessment,most of them have not analyzed and studied the regional ecological positioning.Due to the lack of research on regional ecological positioning,it is rare to apply the research results of regional ecological positioning to the establishment of regional ecological objectives and the construction of index system.Regional ecological positioning does not guide the direction of regional ecological protection and construction well,and there is a general tendency of regional ecological positioning being one-sided and slogan-based.This paper analyzes the necessity and importance of research of regional ecological positioning,puts forward the technology framework of study on regional ecological positioning.With regional ecological positioning research in planning ecological impact assessment of the Chengdu-Chongqing Economic Zone as an example,how to carry out the study on the regional ecological positioning and how to apply the results of the study on the regional ecological positioning in regional ecological impact assessment are explained and illustrated.

Rural sustainable development:A case study of the Zaozhuang Innovation Demonstration Zone in China

Sustainable development is the central theme of modern global development.With the arrival of the urban era,the vulnerability and instability of rural areas have significantly increased,and rural sustainable development faces serious challenges.To address these issues,the study took the Zaozhuang Innovation Demonstration Zone in China under the National Sustainable Development Agenda as a case,combined with economic,social and land use data during 2016-2020,and applied Granger causality test method to explore the theoretical and practical pathways of“innovation-driven rural sustainable development”.The results showed that rural sustainable development and economic sustainability displayed a trend of synergistic change,with“explosive”growth from 2018 to 2020.The social sustainability steadily increased from 2016 to 2020.Ecological and spatial sustainability continuously declined during the study period.Moreover,the rural innovation capacity of the Zaozhuang Innovation Demonstration Zone displayed rapid growth during 2016-2020.Although the rural innovation capacity of the Zaozhuang Innovation Demonstration Zone has rapidly improved,it has a weak driving effect on rural sustainable development and economic sustainability.There are two primary challenges that must be overcome to ensure the rural sustainable development of the Zaozhuang Innovation Demonstration Zone.The first challenge is the imbalance among the multi-dimensional relationships in the process of rural sustainable development,and the second challenge is the weakening of rural innovation capacity to drive rural sustainable development.To overcome these challenges,this study proposed a systematic pathway for rural sustainable development in the Zaozhuang Innovation Demonstration Zone from multidimensions,such as policy actions,technologies,projects,and institutional guarantees,and formed a universal and representative“Zaozhuang model”.This study expands the theoretical foundation of rural sustainable development and provides theoretical and practical support for innovation-driven rural sustainable development.

国家生态文明试验区如何提升海南绿色经济效率?

利用非期望产出SBM模型测算了海南省各市县2010—2019年的绿色经济效率,并基于倍差法实证评价了国家生态文明试验区建设对海南绿色经济效率的影响及其机制。研究发现:样本期内海南各市县绿色经济效率明显提高;国家生态文明试验区显著提升了海南绿色经济效率,推动了处理组与对照组之间的差距缩小40.78%;国家生态文明试验区建设通过优化产业结构和强化环境规制提升海南绿色经济效率。上述结论对于海南以及其他省区绿色发展具有重要启示。

Ecological risk assessment of soil cadmium in China’s coastal economic development zone:a meta-analysis

The coastal area of China has faced major strategic planning and environmental pollution,including heavy metals pollution.This study aimed to provide a comprehensive evaluation of the effects of Cd pollution on the ecology in coastal areas of China.A soil Cd pollution database of 300 counties or districts in coastal areas was screened from academic dissertations and academic journal papers.Based on the database,the ecological risk was evaluated using entropy methods and probabilistic ecological risk assessment(PERA),and the advantages and disadvantages of these methods were analyzed.In China’s coastal areas,the soil Cd content in 10.33%of the counties was higher than the minimum of risk control value(1.5 mg/kg),and in 4.00%of the counties was higher than the maximum of risk control value(4.0 mg/kg).The ecological risks were highly compatible with national strategic planning areas.Guangxi Province,Zhejiang Province,and Guangdong Province ranked among the top three coastal areas for soil Cd contamination,and the ecological risks were 18.80%,17.89%,and 15.77%at the maximum no-effect concentration/lowest effect concentration(NOEC/LOEC)level.This study can provide insights to policymakers regarding the protection of ecosystems threatened by heavy metals in the process of regional strategic planning.

城镇化过程中生态产品生产能力变化特征分析——以湖北长江经济带为例

城镇化过程中生态产品生产能力变化深刻,探究城镇化过程中生态产品生产能力的变化规律,对推进城镇化可持续发展和生态产品价值实现具有重要意义。目前,生态产品核算体系尚未形成统一认识,鲜有研究将乡村休闲旅游点和社区游憩公园等文化服务纳入核算体系,对城镇化过程中生态产品生产能力的变化规律也缺乏系统认识。以湖北长江经济带为案例区,采用USLE、CASA等生态模型和市场价值法、替代成本法等价值评价方法,对2008、2018年研究区的生态产品生产能力进行核算,并分析其变化特征以及与城镇化的相关关系。结果表明:1)2008、2018年湖北长江经济带生态产品生产能力分别为34.21×10^(3)亿元、30.28×10^(3)亿元,其中土壤保持、气候调节和科研教育服务是生态产品生产能力的核心;2)与2008年相比,2018年湖北长江经济带生态产品生产能力下降了3.92×10^(3)亿元,降幅达11.47%,其中土壤保持能力下降显著,随着乡村旅游迅速发展,休闲游憩服务增长态势明显;3)空间变化上,湖北长江经济带三分之二的县(市、区)生态产品生产能力呈下降态势,下降区域主要分布于西部、东部地区,其中重点生态功能区下降尤为明显;4)2008、2018年湖北长江经济带城镇化与生态产品生产能力存在显著负相关关系,快速城镇化过程中,生态产品生产能力受到严峻挑战。因此,在城镇化过程中,要以“两山”理念为指导,保护生态资源基础,修复受损生态系统,开发地方特色生态产品,不断提升城乡生态产品的生产能力。

基于自然-经济综合视角的碳排放强度与生态盈亏多情景模拟研究——以淮海经济区为例

生态盈亏与碳排放强度是衡量生态环境质量与经济发展水平的重要指标,分析两者时空关联并预测未来演进方向对提升区域生态环境质量健康水平具有指导作用。以淮海经济区为研究对象,以2000年、2010年和2020年3期土地利用数据为基础,运用PLUS模型、双变量自相关、耦合协调度及面板计量回归模型等方法,预测并分析淮海经济区2000—2036年3种情景下碳排放强度、生态盈亏的演化特征及时空关联。结果表明:(1)常规发展情景下,淮海经济区生态性呈下降趋势,强耕地保护情景下生态性微有下降,强生态保护情景下,生态性有所上升,自然要素是主导。(2)常规发展情景下,淮海经济区碳排放量逐渐加大,强耕地保护及强生态保护情景下,则呈下降趋势;三种状态下,碳排放强度均呈下降趋势,时间轴2010—2020年降幅较大,空间序河流水系地区碳排放强度降幅较大。(3)淮海经济区碳排放强度与生态盈亏呈负相关关系,低低和低高聚类主要分布在城镇建设用地周边,高低和高高聚类分布在人类干扰较少的自然区域;高高聚类主要位于河流水系交汇区,表明水域有效降低碳排放强度的功能。(4)淮海经济区的碳排放强度与生态盈亏之间的耦合协调度呈东西高、中部低的态势,高耦合协调度主要分布于低高聚类,即自然地区域,低耦合协调度主要分布于西部平原区;科学技术、经济发展水平及二产占比对耦合协调度呈正影响,城镇化率、道路密度呈负影响。研究认为,淮海经济区当前的土地利用方式,不利于区域环境质量的改善,建议进一步强化建设用地管控、大力推进高标准农田建设和水域保护,以耕地质量提升和水域保护加强提升粮食主产区环境质量健康水平。

基于生态系统服务的川南经济区生态网络构建

为有利于提高区域生态系统服务功能,为形成高质量发展的国土空间格,本研究以川南经济区为研究范围,采用生态系统服务评估结果提取生态源地,采用可能连接度指数评价源地重要性程度,再采用MCR模型识别潜在廊道和生态节点,得到川南经济区生态网络总体格局.结果显示:(1)区域生态系统服务功能具有明显的空间异质性,识别出生态极重要区6133.50 km^(2);(2)结合生态功能重要性和景观结构重要性,共选取27块生态源地,占研究区面积的12.97%;(3)识别潜在生态廊道57条,生态节点21个,生态断裂点24个.针对网络重点要素提出了优化建议,构建了“一核五心,一带多廊”网络格局.

淮海经济区文化-生态-旅游耦合协调发展的时空演化及驱动因素

文化、生态、旅游协调发展有利于实现淮海经济区生态、社会、经济效益的统一,推动区域高质量发展.通过构建文化-生态-旅游3系统耦合协调评价指标体系,利用综合评价指数、耦合协调度模型和灰色关联度模型等方法研究2015—2021年淮海经济区市域文化-生态-旅游耦合协调度的时空演变及驱动因素.结果显示,各年度淮海经济区市域间生态系统综合评价值差别较小,文化和旅游综合评价值差别较大,评价值均值表现为生态>文化>旅游.旅游业发展普遍滞后,个别城市同时存在文化发展滞后现象.淮海经济区3系统耦合协调度各年均值多处于“勉强协调”状态,呈现“上升-下降-上升”趋势,市域间耦合协调度等级存在明显的空间分异现象.济宁、临沂和徐州3市耦合协调度较高.淮海经济区3系统的耦合协调受5种驱动因素的共同影响,关联度均值表现为:产业结构>政府行政力>经济发展水平>市场需求>对外开放水平.加紧补齐各城市发展短板、稳固发展底板是提升区域协调水平的关键.

基于生态系统服务价值评估的辽东绿色经济区生态补偿量化研究

对辽东绿色经济区进行生态系统服务价值及生态补偿研究,充分挖掘辽东绿色经济区的生态资源优势,为建立区域生态补偿机制提供科学依据。通过土地利用遥感数据和社会经济统计数据,基于生态系统生产总值核算方法,对辽东绿色经济区2019年生态系统服务价值、生态补偿优先级指数和生态补偿额度进行计算和分析,并将基于水权交易和碳汇交易方面的生态补偿进行市场化。结果表明:辽东绿色经济区2019年生态系统服务价值为2657.19亿元,生态补偿金额范围在26.80亿—260.69亿元,辽东绿色经济区大伙房水库水权交易价格在5.26元/m^(3),辽东绿色经济区绝大部分地区呈碳赤字,需进行碳生态补偿。辽东绿色经济区生态补偿仍需进一步加强,研究结果对于平衡生态、经济协调发展和区域生态补偿机制的建立提供一定参考。

四川省国家重点生态功能区保护发展面临的问题与对策建议

为落实国家主体功能区战略要求,实现国家重点生态功能区生态环境保护和经济社会发展的有机统一,立足四川省国家重点生态功能区基本情况,分析其在保护与发展方面存在的问题,提出完善政府管理考核机制、保护修复生态空间、健全生态补偿制度体系及探索生态产品实现路径等四方面建议,为完善四川省国家重点生态功能区保护与发展模式,促进国家重点生态功能区高水平保护和高质量发展协调统一提供理论支撑。

洞庭湖生态经济区环境治理:成效、问题与对策

扎实推进洞庭湖生态经济区环境治理是实现区域经济社会高质量发展的有力支撑。洞庭湖生态经济区已构建环境治理政策框架体系,持续确保环境治理资金投入,环境质量总体得到改善,但仍存在环境治理资金来源渠道单一且地区间差异大、尚未建立完善的环境治理协调机制、环境治理政策有待完善且执行与监管力度不够等问题。基于此,应拓宽环境治理资金来源渠道,建立湖区环境治理协调机制,完善环境治理政策体系,以提升湖区环境治理整体水平。

宁夏沿黄生态经济区生态系统服务价值及其提升对策

宁夏沿黄生态经济区是自治区各种生产要素最为集中的地区,其生态系统服务价值显得尤为重要。笔者采用修正当量因子法估算了5大生态系统11种生态系统服务价值,明确生态系统服务价值内部结构、时空分布特征及变化趋势,提出价值提升的对策建议,服务黄河流域宁夏段生态保护与高质量发展先行区建设。结果表明:经济区生态系统服务价值呈现出“中间高,四周低;盆地和山区高,荒漠和丘陵低”的空间分布特征;生态系统服务功能以水文调节、气候调节、水资源供给和气体调节服务为主,所占比重分别为59.07%、8.97%、5.02%、4.91%;生态系统服务价值呈增长趋势,与经济发展速度相比仍处于低协调度状态,下一步应在保护生态功能,兼顾美学价值的前提下,加强荒漠和丘陵地带的光伏、风能等清洁能源发展,提升生态系统服务价值。

基于生态系统服务价值的洞庭湖生态经济区生态补偿标准与策略优化

研究洞庭湖生态经济区生态补偿标准与策略优化,是解决该区域生态环境保护与社会经济发展矛盾的重要举措之一。基于2010—2020年洞庭湖生态经济区土地利用数据,首先采用生态系统服务价值修正模型测算生态系统服务价值,继而运用生态补偿优先级、生态补偿额度模型分析洞庭湖生态经济区生态补偿优先级、生态补偿标准,最后探讨洞庭湖生态经济区生态补偿优化策略。研究结果表明:(1)10年间洞庭湖生态经济区生态系统服务价值整体呈递减趋势,由2010年的2157.32亿元上升至2015年的2192.76亿元,后在2020年下降至2151.97亿元。(2)研究时段内,洞庭湖生态经济区各县(市、区)的生态补偿额度整体上呈现出递减趋势且空间差异较大,其中安化县需求强度系数最大,武陵区和岳阳楼区需求强度系数最小。(3)从补偿策略看,洞庭湖生态经济区西部、南部与东部的石门县、安化县、岳阳县等生态补偿额度与生态补偿优先级较高的县(市、区)需优先进行生态补偿与政策倾斜,同时应明确生态补偿重点与深化生态补偿模式改革。

国家生态文明试验区经济高质量发展政策效应研究

2016年,福建、江西和贵州正式成为我国首批国家生态文明试验区。为对生态文明建设推动经济高质量发展的成效进行研究,基于2006—2019年中国省际面板数据运用合成控制法对国家生态文明试验区经济高质量发展成效进行评估,并将合成控制法和双重差分法相结合对其进行稳健性检验。结果表明:(1)国家生态文明试验区设立后各试验区经济高质量发展水平提升成效较为显著。(2)以合成控制—双重差分法对国家生态文明建设试验区政策效应进行稳健性检验,结果显示政策效应的回归系数显著为正,通过了稳健性检验。因此,国家生态文明试验区的成立对于经济高质量发展的提升具有显著作用,这对当前和今后我国国家生态文明建设提供了较好的经验价值。

凤城市绿色经济区建设研究

在我国生态文明建设加速推进、高质量绿色发展成为经济结构转型升级关键推动力的背景下,凭借得天独厚的自然禀赋和历史悠久的产业基础,凤城市绿色经济区建设充满了新机遇,但在绿色发展的认识程度、发展水平、体制机制方面还面临不小挑战。为此,凤城市要严守生态安全的底线,通过做优绿色生态农业、推动绿色低碳工业发展、推进国家全域旅游示范区建设,突出区域特色,优化空间布局。应利用好国家、区域、省、市各个层面的规划、行动方案,增强绿色发展意识,加快构建绿色产业体系,融入新发展格局,探索出行之有效、可复制推广的绿色发展模式,初步建成辽东绿色经济区样板区和东北东部绿色发展示范县。

生态保护视角下内蒙古草原畜牧业分区经营研究

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