Research of Informatization Demands of New Countryside in Poyang Lake Ecological Economic Zone and Related Countermeasures

[Objective] The aim was to survey and analyze informatization demand in new countryside in Poyang Lake Ecological Economic Zone and to propose counter- measures, [Method] A questionnaire was made among farmers on informatization de- mands in different regions in Poyang Lake Ecological Economic Zone and the re- sults were analyzed to propose countermeasures promoting informatization. [Result] With strengthening of information awareness, information demands in rural areas in Poyang Lake Ecological Economic Zone change as follows： Information demand car- rier changes from traditional media to modern media; demand on information content changes from one-way to diversified one; demand of information service changes from one-way transmission to interaction and exchange. However, some problems still exist in informatization process, such as poor infrastructure, dispersed information resources, higher information expense and shortage of information-based talents. Hence, the countermeasures were proposed, as follows： Rational security systems should be established; financing should be as diversified as possible; informatization infrastructure should be reinforced; agricultural economic information and informatiza- tion service system should be established. [Conclusion] The research lays foundation for construction of informatization in new countryside in Poyang Lake Ecological Economic Zone.

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.

Research on the Tourism talents training mechanism of Poyang Lake Ecological Economic Zone

In order to promote the tourism development of Poyang Lake Ecological Economic Zone, to attract more customers, to build an effective personnel training mechanism, training professionals is very necessary. The advantages of Poyang Lake Ecological Economic Zone tourism development are introduced in this paper, and pointed out that the tourism talent training needs analysis of talent training status and improvement measures are proposed, including the integration of the region education resources, pay attention to the skilled personnel training, improve the teaching curriculum setting, improve the quality of Teachers, strengthen the construction of training base.

Study on Planning and Design Mode of Eco-agricultural Demonstration Base in Poyang Lake Eco-economic Zone

Guided by the Planning of Poyang Lake Eco-economic Zone, traffic and geographic conditions of the Eco-agricultural Demonstration Base in the study area were analyzed, and design principles proposed as "adaptation to local conditions, scientific planning, benign circulation and sustainable development". Detailed planning and design was interpreted from the perspectives of infrastructure planning and functional area planning. Specifically, infrastructure construction should focus on traffic design, water, power and gas supply design, and also architectural design; while functional areas should be gradually developed from south section to central and then north section. It was to establish a design and planning mode that can be widely applied.

Legal System for China's Forest Resource Protection:A Case Study of Poyang Lake Eco-economic Zone

Taking Poyang Lake Eco-economic Zone as an example,we analyzed existing problems in China'forest resource protection from the perspective of legal system.The problems include unclear property right system of forest resource,imperfect compensation mechanism for forest ecology,forest cutting quota scheme not resolutely put into practice,legal supervision of forest protection not implemented,and lack of integration in forest protection laws.Based on these problems,we put forward countermeasures and suggestions:establish clear forest resource property system;improve ecological benefit compensation mechanism in legal form;strictly implement forest cutting quota scheme;strengthen legal supervision of forest protection;and keep legal system integral for forest resource protection.

Development of Ecological Fishery in Poyang Lake Area

Through in-depth analysis on history and current situations of fishery development in Poyang Lake area,this paper presents location,resource and environment advantages in development of ecological fishery.According to orientation of leading functions,Poyang Lake can be divided into breeding development,capture operation,enhancement protection and ecological rehabilitation functional zones.In accordance with industrial foundation and ecological advantages of cities and counties in Poyang Lake,it determines the reasonable distribution of 8 leading industries:river crabs,shrimps(Procambarus clarkia),eels,Pengze crucian carp,Siniperca chuatsi,Channa argus,Ietalurus Punetaus,and pearl.On the basis of systematically summing up exploration experience,it comes up with the development path"ecology oriented fishery and industrialization oriented ecological fishery"for ecological fishery in Poyang Lake area.It proposes a series of key technological measures,including reducing fertilizer and drugs,increasing output and benefits,low consumption and emission,high quality and safety,and standardization,to realize a benign cycle of"cost saving,benefit increasing,quality improving and low carbon"and the multi-win objective of coordination between ecology,economy and society.

Ecological Footprint and Endogenous Economic Growth in the Poyang Lake Area in China Based on Empirical Analysis of Panel Data Model

In this paper, ecological footprint methods were used to calculate the ecological footprint of six cities （Nanchang, Jingdezhen, Jiujiang, Xinyu, Yingtan and Fuzhou） in the Poyang Lake Area, Jiangxi, China from 1991 to 2010. Ecological footprint was the input factor for ecological resources and the contribution of this and other factors such as labor and capital to economic growth were analyzed. The results showed that, from 1991 to 2010, ecological footprints in the six cities increased year by year. The amount of land for fossil energy, under cultivation and grassland influenced total ecological footprint in each city. The contribution of ecological resources, labor factors and capital factors to economic growth showed regional differences. Nanchang, Jiujiang, Xinyu, and Yingtan are capital-orientated and capital factor had a great influence on the economic growth rates, whereas, Jingdezhen and Fuzhou were labor-orientated. The contribution of ecological resources to economic growth in the six cities was the lowest of all three factors, meaning that efficiency of ecological resource utilization is low. Total productivity plays a key role in economic development; however, the overall level of total factor productivity for the six cities was low and indicates that the technological content of Poyang Lake Area’s economic growth is low and the utilization of input factors extensive. In summary, we suggest changing the mode of economic growth and developing tertiary industry in the region.

Spatio-temporal difference analysis of cultivated land use intensity based on emergy in the Poyang Lake Eco-economic Zone of China

Taking the emergy requirements of the five input indexes as the foundation, this paper analyzes the total temporal and spatial changes in cultivated land use intensity in the Poyang Lake Eco-economic Zone from 2000 to 2010. The results are obtained as follows： （1） Over a period of 10 years, the cultivated land use intensity has increased exponentially in the Poyang Lake Eco-economic Zone; agricultural machinery intensity has been the largest proportion of the total inputs, comprising more than 99.50% and increasing year by year, which indicates that agricultural mechanization is a basic trend in agricultural development in the Poyang Lake Eco-economic Zone. （2） The total number of counties belonging to the moderate- and low- intensity cultivated land use categories is the largest, while the number of counties belonging to the high-intensity cultivated land use and extensive cultivated land use categories is the smallest. （3） This zone can be divided into five areas： an eastern area of high-intensity cultivated land use, a central and eastern area of low-intensity cultivated land use, a central area of low-intensity cultivated land use, a southern area of moderate-intensity cultivated land use, and a northern area of moderate-intensity cultivated land use. （4） The counties which had a coordinated development between cultivated land use intensity and their socio-economic development level increase year by year, and the socio-economic development level had increasingly obvious effects on the cultivated land use intensity. Finally, this paper presents suggestions for the development of cultivated land use intensity in the Poyang Lake Eco-economic Zone, especially for different levels of intensity among counties.

鄱阳湖生态经济区景观生态风险评价及预测

该研究以2000、2010和2020年鄱阳湖生态经济区的土地利用数据为基础,使用基于景观格局的景观生态风险评价模型,分析了2000-2020年其景观生态风险的时空演变特征;使用PLUS模型,结合风险指数质心、标准差椭圆,揭示了2030年不同情景下研究区景观生态风险的空间格局。结果表明:(1)2000-2020年,鄱阳湖生态经济区耕地与林地面积不断减少,建设用地成片扩张;整体景观生态风险呈“中间高,四周低”的分布特征,其中高风险区面积最少,降幅最大(22.99%),总体生态风险呈降低态势。(2)与2020年相比,2030年自然发展情景下,研究区高风险区与较高风险区总面积同比增加30.36%,生态风险级别升高;城镇发展情景下,其高风险区面积同比增长150%,生态风险级别显著提升;生态保护情景下,其较高风险区面积同比下降了27.76%,区域生态风险等级下降明显。(3)相较于自然发展情景,城镇发展情景下研究区各级别生态风险呈扩散分布状态,生态保护情景下呈集聚收缩状态;不同情景下,研究区景观生态风险的质心移动方向多变,反映了生态风险变化的复杂性。研究结果可为鄱阳湖生态经济区及类似地区的生态风险防范及土地利用规划提供理论依据。

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。

基于RSEI鄱阳湖生态经济区生态质量评价

本文以陆地卫星(Landsat)影像为基础,运用遥感技术提取绿度、湿度、干度和热度四个指标,通过主成分分析方法构建了2002—2022年的鄱阳湖生态经济区遥感生态指数(RSEI),全面评估了该地区生态质量的时空变化。研究表明:2002—2020年,鄱阳湖生态经济区RSEI指数呈增长趋势,大部分区域的RSEI等级为良和优,占比从76.86%提高到了82.46%,变化最明显的地区主要集中在鄱阳湖流域的湖泊湿地。本研究为进一步实现鄱阳湖生态经济区的生态环境和经济的协调发展提供了科学依据。

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。

Industrial Greening of the Dongting Lake Eco-economic Zone

Extensive industrial development is a major challenge to ecological civilization construction. Industrial energy consumption and environmental pollution reduction are desperately needed. The Dongting Lake district, located in Wuhan and the Changsha-Zhuzhou-Xiangtan(CZT)pilot zone, bears the responsibility to ensure national food security and watershed ecological security, and it is an urgent need for the Dongting Lake district to accept the ecological transition of industries. On the analysis of the industrial development status and problems of the Dongting Lake district, some proposals based on the characteristics and reality of the district are pointed out, such as industrial cooperation, proper space layout, ecological innovation, industrial structure upgrading, building of ecological parks, clean production, elimination of backward production capacity, heavy metals governance and so on, as to develop the industrial ecology of the Dongting Lake district.

洞庭湖生态经济区智慧城市社会治理研究

本文以洞庭湖生态经济区为研究对象,以社会治理问题为切入点,探讨了基于大数据的智慧城市社会治理路径,并提出了相应的建议。研究发现,湖南湘江新区在智慧城市建设和社会治理方面进行的一些尝试,可以为洞庭湖生态经济区智慧城市社会治理提供借鉴,并提升社会服务的精确度和高效性。洞庭湖生态经济区政府应在加强数据管理和隐私保护、建立开放的数据平台、加强政策法规的制定等方面推动智慧城市社会治理,以解决洞庭湖生态经济区智慧城市社会治理问题,提升社会治理的效能,构建江湖协同治理引领区。

多情景模拟区域土地利用变化对碳储量的影响

以洞庭湖生态经济区为例,利用InVEST模型评估1990~2020年土地利用变化带来的碳储量效应,耦合Markov-FLUS模型模拟2030年、2060年在自然演变、耕地保护、生态保护、综合保护四种情景下土地利用变化及其对碳储量的影响.结果表明:1990~2020年洞庭湖生态经济区呈现出耕地、林地和草地面积减少,水域、建设用地和未利用地的面积持续增加的特征.区域内整体碳储量较高,但随着土地利用变化,造成区域固碳能力和潜力有所降低,1990~2020年区域碳储量总共减少0.433×10^(6)t.在自然演变、耕地保护、生态保护和综合保护四种不同情景下,2030年、2060年区域均表现出建设用地的变化量较大,综合保护情景建设用地的增加量得到较好控制.2030年、2060年洞庭湖生态经济区自然演变情景碳储量分别为19.927×10^(6)t、19.696×10^(6)t,耕地保护情景为19.891×10^(6)t、19.903×10^(6)t,生态保护情景为19.952×10^(6)t、19.873×10^(6)t,综合保护情景为20.004×10^(6)t、19.949×10^(6)t,相比可知在综合考虑耕地与生态保护的情景下,区域碳汇能力较强.研究结果有助于构建高碳汇国土空间格局,可为实现区域碳平衡和土地利用结构优化提供依据.

洞庭湖生态经济区乡村一二三产业融合发展时空演变分析

建立乡村一二三产业融合评价指标体系,运用熵权法、耦合协调度法和空间自相关分析法,研究2010—2019年洞庭湖生态经济区33个县市区乡村一二三产业融合发展水平的时空差异变化。研究表明:从时间序列分析来看,洞庭湖生态经济区乡村一二三产业融合发展水平总体呈上升趋势,耦合协调度从起步阶段的濒临失调水平提升到稳定阶段的中级协调水平,且具有阶段性发展特征;从空间布局分析来看,洞庭湖生态经济区乡村一二三产业的融合发展度和耦合协调度具有非均衡性特征,呈“东南高-西北低”格局分布;从时空关联分析来看,2010—2019年洞庭湖生态经济区的耦合发展度在空间上具有正向集聚特征,呈“东南高-北低”格局分布,即HH型聚集在生态经济区东南部,LL型聚集在生态经济区北部。因此,建议培育现代乡村产业体系,构建区域利益联结机制,强化高水平耦合地区的优势辐射功能,以促进洞庭湖生态经济区乡村一二三产业融合发展,推进乡村产业振兴。

生态安全约束下环鄱阳湖区城市经济韧性的空间关联网络特征

经济韧性是社会经济稳定的重要前提,而生态环境往往制约经济韧性的各个维度。构建环鄱阳湖区生态安全约束下城市经济韧性测度指标和方法,并采用社会网络分析对其空间关联网络的结构特征进行分析。结果表明:(1)研究区城市经济韧性表现出先下降后上升的趋势,其空间分布大体上呈现由环湖核心区向环湖外围区递减的环湖分布特征,表明生态安全约束下的湖域地区社会经济稳定性在增强,而空间分布差异显著。(2)研究区城市经济韧性空间关联网络整体特征呈现一主多次的分布格局,成员联系愈加紧密,网络密度呈上升趋势,但中心城市核心地位逐渐减弱,次核心地位逐渐上升,表明生态安全约束下环湖地区城市经济韧性的“核心边缘模式”在逐渐减弱。(3)生态安全约束下环湖地区城市经济韧性空间关联网络具有地域分异特征,并呈现出“抱团取暖”的动态联系规律。

湖南省洞庭湖生态经济区生态保护与修复重点区域的识别研究

提高湖南省洞庭湖生态经济区的生态系统环境承载力,对于维护生态安全具有重要意义。选用空间形态学方法(MSPA)、生态系统服务重要性评价和电路理论模型,判别生态保护修复重点区域。研究表明:生态保护重点区域共识别生态源地17742.35 km^(2),廊道121条,长579.73 km;生态修复重点区域共识别夹点42个,障碍点29个,生态系统服务功能低值区面积4044.46 km^(2);基于生态保护修复重点区域的生态现状,制定针对性生态保护修复策略,为研究区开展生态保护修复工作提供理论依据。

基于MODIS数据的洞庭湖生态经济区生态环境质量演变研究

快速城镇化对地区生态环境质量产生重要影响,及时评估生态环境质量变化对城市生态管理和规划具有重要意义。文章基于Google Earth Engine(GEE)云平台优势,利用MODIS数据对洞庭湖生态经济区的生态指数进行计算,评估了该区域20多年生态环境质量的时空变化。结果显示,近20年来洞庭湖生态经济区的生态环境质量表现出缓慢下降的趋势,下降区域主要集中于城镇周边及平原地区,其中益阳市生态环境质量最好,荆州市最差,尤其是荆州市的荆州区,在未来发展规划中需要优先引起重视。本研究成果可为环洞庭湖地区可持续发展提供重要的理论依据。