共查询到20条相似文献，搜索用时 46 毫秒
1.
湿地生态系统健康评价是湿地保护的基础,对提高湿地生态环境管理水平具有重要的指导作用。以国家级自然保护区湖南省东洞庭湖湿地为研究区,利用Mamdani FIS (模糊推理系统)模型,构建了包含水体PH值,水体悬浮物浓度、土壤pH值、土壤含水量、植被类型数量、入侵物种数量、湿地面积变化率、人口密度、产业结构等9个影响因子的指标体系,进行了湿地生态系统健康评价。结果证明,东洞庭湖湿地生态系统健康评价得分为1.37分,健康状态介于亚健康和不健康之间。利用Mamdani FIS 模型的非线性分析能力和基于专家意见的推理规则,评估湿地健康指数时不需要先验知识支撑,简化了模型使用时对数据的要求。通过对评价结果进行分析提出了保护利用的建议,以期为长江中下游湖泊湿地生态环境保护政策的合理制定提供科学依据。 相似文献
2.
《Journal of Landscape Research》2015,(3)
Wetland as one of the natural landscapes with the richest biodiversity and most closely related to our life is widely distributed all around the world, and capable of storing fl ood, preventing drought, purifying environment, adjusting climate, controlling pollution, maintaining regional ecological balance. Nanchang is famous for "City in the Lake and Lake in the City", and this paper begins with wetland resources in Nanchang City, analyzes problems of local wetlands. Taking the design of the Aixi Lake Wetland Park for example, this paper proposes suggestions for the renovation and improvement by analyzing the problems of its current landscape pattern, and specifi c problems in the landscape design of wetland park, and summarizes the ecological model fi t for the landscape design of urban wetland park in Nanchang City. The research contributes to the ecological restoration and conservation of wetland resources in Nanchang. 相似文献
3.
《Journal of Landscape Research》2016,(3)
Sustainable management of scenic and recreational forest based on the integration of forest landscape beauty and recreational functions is the foundation of forest tourism. Adhering to the principles of structural optimization, healthy and vital, beautiful landscape, sound function, and comprehensive benefi t, the hotspot and core task in the current construction of scenic and recreational forest is to conserve, transform and improve forest landscape. The ThousandIsland Lake National Forest Park is endowed with peculiar island scenery, it is necessary to construct a stable threedimensional comprehensive protection system covering "mountain, land and lake", enhance the ecological environment conservation of the lake as well as the lakefront wetland, promote the ecological restoration and coloring construction of forest, protect integrality and diversity of the biosystem, and construct ecological urban-rural system using regional scenic spot concept, so as to build the lake into a model of the sustainable operation of scenic and recreational forest. 相似文献
4.
《Journal of Landscape Research》2014,(Z2)
In addition to purifying water, constructed wetland has become an important ecological landscape in city. The characteristics and key design points of constructed wetland under the ecological principles were explored, taking the Jingyue Lake in Zhongxiang City, Hubei Province for example, treatment processes were designed for different infl ow waters on the basis of site analysis to facilitate the water environment control and ecological landscape construction, ecological theories were applied to explore functional layouts and landscape designs of wetland, to build a favorable ecological environment of urban wetland and design outstanding wetland ecological landscapes. 相似文献
5.
笔者通过对环洞庭湖地区农村进行实地调研,发现许多农村存在产业结构缺乏特色、基础设施水平不高、乡风文明陈旧滞后、生态环境破坏严重、民主制度不够健全等五个方面的问题。论文以＂生产发展、生活宽裕、乡风文明、村容整洁、管理民主＂为建设目标,对构建环洞庭湖地区新农村技术文明、物质文明、精神文明、生态文明和政治文明等＂五个文明＂作了深入的思考,并提出了＂五个文明＂建设的具体措施。 相似文献
6.
ZHU Guofei HU Yeqing LONG Haijun CAI Fang SHE Lihua 《Journal of Landscape Research》2019,(2):95-98,103
Through analyzing basic conditions of the "five mining areas" in the Laoqing Mountain of the Dianchi Lake Basin, in Kunming City, South China, the ecological restoration design of "integrating engineering protection and biological restoration, building the landscape ecological security pattern of the Laoqing Mountain" was proposed. Considering the different ecological functional areas, varying engineering measures, greening patterns, and irrigation means were selected for the ecological restoration, including site management, vegetation restoration, management and utilization etc.. These ecological restoration measures will produce favorable ecological benefits, and also take landscape effect and sustainable development into consideration, which will contribute to the ecological restoration of the "five mining areas", and provide a scientific and feasible reference for the ecological restoration in China. 相似文献
7.
8.
洞庭湖湿地生态系统服务功能效益分析 总被引：4，自引：2，他引：2
为了提高人们对洞庭湖湿地生态系统服务功能价值的认识,针对洞庭湖湿地生态功能受到严重破坏与威胁的现状,采用市场价值法、替代市场法等方法对洞庭湖湿地的水文调节、净化、维持物种多样性、碳固定、营养循环、休闲旅游、保护土壤等生态系统服务功能的价值进行了评价。结果表明：洞庭湖湿地生态系统服务功能价值巨大,其货币价值达239.85×108元/年。在整个生态系统服务功能价值中,水文调节功能价值最大,为107.44×108元/年,占总价值的44.79%,说明洞庭湖在调节长江洪水径流方面发挥着重要作用;维持物种多样性功能的价值最小,为4.89×108元/年,低于世界平均水平,说明洞庭湖生态环境已遭到严重破坏。因此,要在充分认识洞庭湖湿地生态功能价值的基础上,充分发挥其作用,促进洞庭湖湿地生态区域经济的协调发展。 相似文献
9.
《Journal of Landscape Research》2015,(3)
By reviewing the beautiful countryside construction in Xihu Lijia Village, Qianfang Town, Jinxian County, this paper further explored the concept of building happy and harmonious countryside, provided theoretical and technical instruction for the construction of "ecological settlement", "ecological environment", "ecological economy", "ecological culture", in order to instruct the construction of beautiful countryside. 相似文献
10.
《Journal of Landscape Research》2017,(1)
Shoal wetland and riverfront greening are important contents of "afforestation for flood control",in addition to increasing shoal wetland biodiversity and waterscapes,they can also restore and improve coastal ecological environment,and broaden the green area on the plain effectively. Through analyzing problems of shoal wetland and riverfront greening in Zhejiang Province,this paper took successful cases for example to propose the ideas for implementing plain greening effectively,such as "afforestation for flood control","landscaping construction is an ecological infrastructure project","plan wetland greening according to actual conditions","promote wetland greening by enhancing the cooperation among relevant departments","adopt multiple measures to enhance riverfront greening". 相似文献
11.
沧州东部滨海湿地具有独特的地理位置、复杂的生态环境和丰富的鸟类资源,是候鸟南北迁徙带与东西迁徙带的交汇点,也是东北亚内陆和太平洋西岸鸟类迁徙通道上的重要“中转站”、越冬地和繁殖地。由于20世纪80年代以后自然降水锐减,温度升高导致蒸发量增大,干旱情况加重,沧州地区东部滨海湿地的生态环境受到严重影响。就其生态价值、经济价值、社会价值受到的影响状况以及相关的积极保护行动等方面进行较系统的阐述,并从生态保护性开发和可持续发展远景规划等方面提出一些建设性的意见和建议。 相似文献
12.
南洞庭湖湿地龙虎山次生林林分空间结构研究 总被引：2，自引：1，他引：1
为了优化洞庭湖湿地典型森林类型林分空间结构,充分发挥湿地森林涵养水源、保持水土和调节气候等多项功能,以南洞庭湖湿地龙虎山林场次生林群落为研究对象,依据现代森林生态和森林经理学原理,在现有林分空间结构分析方法的基础上,应用混交度、大小比数分析林分空间结构的树种隔离程度和林木大小分化程度,并提出应用角尺度和空间密度指数在分布角度和林木分布密度上分析林分空间分布格局的新方法,克服了传统研究中用角尺度不能确切反映树木个体之间距离的不足。结果表明：南洞庭湖龙虎山林场次生林林分1、2、3、4的混交度分别为0.29、0.43、0.46、0.16,属于弱度混交与中度混交的过渡类型,树种隔离程度不高,与多次人为干扰有关;平均大小比数分别为0.45、0.43、0.7、0.22,其先锋树种生长优势明显;平均角尺度分别为0.65、0.47、0.53、0.40,平均空间密度指数为0.65,其值分布在[0.485,0.806]的区间,总体分布格局呈均匀分布向随机分布演替的趋势,接近于近自然的随机分布状况。龙虎山林场次生林群落林分空间结构是洞庭湖湿地区域森林生态系统空间结构恢复和近自然经营研究的较理想的森林群落。 相似文献
13.
《Journal of Landscape Research》2013,(Z3)
This study explored the effective means of constructing characteristic urban cultural landscapes in the design of urban waterfront landscapes by combining with planning and design of Xihan River Customs Line and adhering to the theme of "cultural reproduction",tried to integrate cultural landscapes into ecological landscaping,so as to fully demonstrate signifi cance of urban cultural background for theoretic researches and practices of urban landscaping. 相似文献
14.
生态系统服务功能是生态系统与生态过程所形成及所维持的人类赖以生存的自然环境条件与效用,对其服务价值进行货币化评价,可以推动自然资源可持续利用,促进区域生态环境保护。以达里诺尔湖湿地为研究对象,结合达里诺尔湖湿地生态系统的结构、特征及其生态过程特点,通过资料搜集与实地调研,运用资源经济学理论和方法,对达里诺尔湖湿地生态系统服务价值进行了划分。构建了达里诺尔湖湿地生态系统服务价值评价指标体系,并对其进行了价值评价。评价结果显示达里诺尔湖湿地的服务价值为93.70×104万元,其中直接使用价值为2.19×104万元,占比为2.36%,间接使用价值为91.51×104万元,占比为97.66%。各项生态系统服务功能中以调节空气湿度价值最大,为82.76×104万元,占总服务价值的88.32%。 相似文献
15.
克钦湖水体重金属分布特征及评价 总被引：2，自引：1，他引：1
为了更好地研究扎龙湿地的水环境质量,以扎龙湿地内的克钦湖水体为研究对象,分析了水体中重金属的含量及潜在生态危害程度。在湖内均匀布设29个采样点进行取样,测定了水体中的Cu、Zn、As、Cd、Pb的含量,重金属浓度含量的大小顺序为As＞Cu＞Pb＞Cd＞Zn。分别以方差分析和潜在生态危害指数评价法对污染情况进行分析评价,其中方差分析结果表明,克钦湖水体中As元素的污染比较严重。克钦湖水体重金属对扎龙湿地的潜在生态危害由强到弱依次为：As＞Cd＞Pb＞Cu,其中As的影响占主导地位。总体而言,克钦湖水体的重金属的潜在生态危害程度较高,已对扎龙湿地生态系统产生了潜在的生态风险。 相似文献
16.
利用GGE双标图划分长江流域棉花纤维品质生态区 总被引：4，自引：1，他引：3
长江流域棉区棉纤维品质区域特征明显,合理划分纤维品质生态区有助于提高原棉品质和配棉效率。本研究采用GGE双标图的“环境-性状”功能图分析2000-2012年期间长江流域国家棉花品种区域试验中环境与纤维品质性状的互作模式,提出长江流域棉纤维品质生态区划分方案。结果表明,长江流域棉区可划分为“中等品质生态区”、“高长度与比强度生态区”和“低马克隆值生态区”。其中,长江流域中等纤维品质生态区涵盖湖北省江汉平原和鄂东南岗地棉区、河南省与湖北省交界的南襄盆地棉区、湖南省环洞庭湖东部和西部棉区、江西省环鄱阳湖棉区、安徽省沿江与江淮棉区、江苏省宁镇丘陵与沿江棉区和浙江省沿海棉区,纤维品质较好,代表了长江流域的总体水平;高长度与比强度生态区位于湖南省环洞庭湖北部滨湖沃土棉区,纤维长度和比强度优良,而马克隆值偏高;低马克隆值生态区涵盖长江流域最西边海拔较高的棉花熟期早长势较弱的四川丘陵棉区和最东边土壤含盐度较高且棉花长势较弱的江苏沿海棉区,纤维马克隆值达到B级水平,为长江流域马克隆值最好的区域,但纤维比强度水平一般。本研究充分展示了GGE双标图的“环境-性状”功能图在纤维品质生态区划分方面的应用效果,可为长江流域棉花区域化种植和纺织企业合理用棉提供决策支持,也为其他棉区和作物生态区划分研究提供参考。 相似文献
17.
艾比湖湿地自然保护区植物群落数量分类研究 总被引：1，自引：1，他引：0
为了研究新疆艾比湖湿地自然保护区内植物群落的分类和排序,给湖区湿地生态恢复和植物多样性保护提供具有实践价值的参考依据,应用双岐指示种分类法(TWINSPAN)和DCA排序方法分析了新疆艾比湖湿地自然保护区25种主要植物在47个调查样地内的存在-缺失数据。结果表明：TWINSPAN将艾比湖湿地25种主要植物种划分为8个群丛,各群丛内的植物种之间具有相似的生境;DCA排序第1轴反映了土壤含水量梯度,第2轴反映了海拔梯度;TWINSPAN和DCA 2种方法对样地和植物种的分类、排序结果一致,能够有效处理艾比湖湿地植物种分布的稀疏性。 相似文献
18.
《Journal of Landscape Research》2013,(4)
Taking riverfront landscape construction of Wojiang River and its artery landscape engineering for example, the design follows the principle of "humanistic, ecological, landscape, sharable and open", respects and understands intentions of planning in the early stage, focuses on the extraction of historical elements, explores local cultural characteristics to integrate the features into riverfront landscape construction and create urban landscapes with local cultural connotations. 相似文献
19.
《Journal of Landscape Research》2013,(9)
Taking the design plan for Yingshan Reception Center in Jiawang District,Xuzhou City for example,the paper explores the ways of designing small special buildings in mountainous areas.Regional cultures and humanistic concern are combined to study design of small building from the perspectives of site,form,space,material,low technology and ecological strategies,and to explore a way of designing primitive civil architecture that is comfortable,livable and able to integrate into local environment. 相似文献
20.
《Journal of Landscape Research》2017,(2)
Confucian ethics, idea and behavior criterion were embodied in "everything" of life, especially in the building as an important tool for moralizing. Taking a case study on vernacular houses of Dongting East Mountain and West Mountain, this paper reveals the "moderate", "etiquette" and "benevolence" as moral contents in the building's layout, form, space, decoration and so on. The moralizing reflects a subtle way of guidance, as well as diversified and systematic characteristics. Vernacular houses deeply mingled with daily life, had unique influence as physical environment, thus realizing the implementation and manifestation of Confucian moralizing ideas that have been converted to folk customs. In sum, the Confucian moralizing function carried by vernacular houses is the product of institutions and rules, and it is also the manifestation of conscious inheritance of cultural identity. 相似文献