斑块论文：斑块 廊道 植物多样性 多样性指数 分区规划

斑块论文：斑块 廊道 植物多样性 多样性指数 分区规划 斑块论文:斑块 廊道 植物多样性 多样性指数 分区规划 【中文摘要】本文从景观生态学的斑块-廊道理论出发,对郫县城市绿地的植物多样性进行了研究。通过数据调查,对四个植物多样性指数进行了,数据结果得出:1)郫县各镇物种丰富度整体呈现出乔木层>灌木层>草本层的趋势;2)各镇间的优势度差异不大;3)多样性指数呈现出随城市化水平降低而减小的趋势;4)优势度较低的地区,其均匀度较高。从理论和实际出发,在研究郫县城市绿地的植物和多样性现状的基础上,具体的分析了郫县现阶段城市绿地系统植物多样性保护中存在的问题,主要有:1)城市的快速膨胀及不合理规划,使得植物的生存环境遭到严重破坏;2)城市内部生态系统趋于简化;3)城市空间分隔化现象严重;4)对植物多样性认识不足,管理措施混乱等。并且通过对绿地植物多样性的调查研究,结合郫县大量的现场调查、研究和资料的整理收集、分析,对郫县绿地系统的植物多样性保护作出了规划建议,并针对不同生态功能的城市绿地区域进行了分区规划及探讨。1)农业生态区:以保持农业生态系统类型的多样性为主要措施,根据不同地区的自然条件搞好农业区划,因地制宜,农林牧副渔要全面发展,相互镶嵌,形成多元化的生态系统格局,制造出丰富生态过渡带,增大边沿效应。2)河流生态区:向生态化、景观化、多学科化的方向发展,重点是对河流湿地的水污染进行治理,促进水生植物多样性的恢复,营建一个能发挥涵养和净化水源的生态功能区。加强河道、河岸的水体保护,以提高生态涵养能力,保持生态系统的稳定性,恢复河道湿地生态功能,同时提高景观效果。3)城镇人口密集区: 合理调整城镇人口密集区内各类块状绿地的尺度、数量、形状、位置 等,以便更好地发挥块状绿地的作用,并与城镇中其他类型的绿地相 互渗透,使各类绿地斑块按照不同的功能、规模和位置,构成整个城镇 的大区域的绿地系统,从而发挥其恢复并维持生态自然循环和自行净 化的生态功能。4)工业经济区:提高企业单位内的绿地及其附属绿地 的植物多样性是重点,关键还要营造一个具有净化环境、抗污染功能 的生态环境,大力发展和使用具有抗污染、吸收废气功能的树种。5) 林业生态区:应与其他类型的绿地类型相协作,加强自然保护区、风 景名胜区和森林公园的建设和保护,划定生态建设与保护红线,通过 创建生态林带等途径明确保护措施,由此来提高整个城市的植物多样 性。 【英文摘要】This paper studies the Pixian plant diversity in urban green space based on the Path-corridor theory of landscape ecology. Through data investigation, diversity index of the four plants were analyzed, Data results obtained:1) Pixian showed the species richness’trend of tree layer> shrub layer> herb layer; 2)towns little difference between the dominance; 3)diversity index showing a lower level of urbanization with decreasing tendency; 4)lower dominance region, the higher the evenness. Based on the status quo of plant and diversity of urban green space of Pixian, following problems have been analysed:1) the living environment of plants has been severely damaged caused by city’s rapid expansion and unreasonable planning; 2) ecosystems within cities tending to simplify; 3) the phenomenon of urban space separated seriously; 4) knowledge on plant diversity lacking and confusion of management etc.During the research, as combined with a large number of field investigation, studying, data collection and analysing, the planning proposals were made for green space system of plant biodiversity in Pixian. The proposals are planed and zoned by ecological functions as following:1)Agro-ecological zones:in order to maintain the diversity of agro-ecological system type, according to the natural conditions in different parts of their agricultural zoning, local conditions, forestry, animal husbandry and fisheries to overall development, mutual mosaic, diversified pattern of the ecosystem, to create a rich ecological transition zone, increasing the edge effect.2)River ecological zones:the ecological, landscape, multi discipline in the direction of development, focusing on water pollution of river wetlands to govern and promote the recovery of aquatic plant diversity, conservation and construction of a clean water source to play the ecological function area. Strengthen the river bank in the water protection, to enhance ecological conservation and ability to maintain the stability of ecosystems, restoration of river ecological functions of wetlands, while increasing the landscape.3)Densely populated cities and towns:reasonable adjustments within the various types of bulk green densely populated urban scale, number, shape, location, etc., in order to better play the role of massive green space, and with other types of urban green space in the mutual penetration, so that Various types of green patch in accordance with the different functions, size and location, constitute the entire town a large area of green space system, which play its restoration and maintenance of ecosystem self-purification of natural cycles and ecological functions.4)Industrial economic zones:improving business units and its subsidiaries within the green green plant diversity is the key, the key also to create a clean environment,anti-pollution features of the ecological environment, to develop and use a anti-pollution, trees absorb the gas function.5)Forestry ecological zones:the type and relative to other types of green space cooperation, strengthening nature reserves, scenic spots and forest parks in the construction and protection, ecological construction and protection of the red line delineated by creating clear channels such as ecological forest protection measures, which to increase the plant diversity of the city. 【关键词】斑块 廊道 植物多样性 多样性指数 分区规划 【英文关键词】Path Corridor Plant diversity Diversity index Zone planning 【】基于斑块—廊道理论的成都市郫县城市绿地系统植物多 样性保护规划 摘要 5-7 Abstract 7-8 引言 12-13 1. 选题背景 13-15 1.1 景观生态学与城市景观 格局 13-14 1.2 生态城市理论的发展对保护生物多样性的要 求 14-15 2. 研究综述 15-23 2.1 相关概念界定 15-16 2.1.1 城市绿地系统(Urban Green Space System) 15 2.1.2 植物多样性(Plant Diversity) 15-16 2.1.3 城市植物多样性保护 16 2.2 国内外研究进展 16-21 2.2.1 国外研究进展 16-18 2.2.2 国内研究进展 18-21 2.3 小结与存在问 题 21-22 2.4 研究目的及意义 22-23 3. 研究区概况及 研究范围 23-25 3.1 研究区概况 23-24 3.2 研究范围 24-25 4. 研究与、技术路线 25-28 4.1 内容 与方法 25-27 4.1.1 样地的选择与样方设置 25-26 4.1.2 植物多样性指标选择与计算 26-27 4.1.3 植物多样性保护规划研究 27 4.2 技术路线 27-28 5. 调查结果与分析 28-36 5.1 植物多样性指数分析 28-33 5.1.1 丰富度指数 30-32 5.1.2 Simpson优势度 32 5.1.3 Shannon—Weiner多样性指数 32 5.1.4 Piclou均匀度 32 5.1.5 小结 32-33 5.2 名木古树保护现状结果分析 33-35 5.3 存在问题 35-36 6. 基于斑块-廊道理论的郫县植物多样性保护规划 36-59 6.1 城市绿地空间格局分析 36-38 6.2 郫县植物多样性保护总体规划 38-39 6.3 郫县植物多样性保护分区规划 39-59 6.3.1 农业生态区----农田、茶园、苗圃等 40-44 6.3.1.1 区域范围、自然环境特点与多样性状况 40 6.3.1.2 保护策略与规划措施 40-44 6.3.2 河流生态区----水源及其净化涵养区 44-49 6.3.2.1 区域范围、自然环境特点与多样性状况 44-45 6.3.2.2 保护策略与规划措施 45-49 6.3.3 城镇人口密集区 49-55 6.3.3.1 区域范围、自然环境特点与多样性状况 49-50 6.3.3.2 保护策略与规划措施 50-55 6.3.4 工业经济区 55-57 6.3.4.1 区域范围、自然环境特点与多样性状况 55 6.3.4.2 保护策略与规划措施 55-57 6.3.5 林业生态区----林业绿地(天然林、人工林)、防护林、森林公园、风景名胜区 57-59 6.3.5.1 区域范围、自然环境特点与多样性状况 57 6.3.5.2 保护策略与规划措施 57-59 7. 结论与讨论 59-61 参考文献 61-65 致谢 65 【采买全文】 1.3.9.9.38.8.4.8 1.3.8.1.13.7.2.1 同时提供论文写作一对一辅导和论文发服务.保过包发 【说明】本文仅为中国学术文献总库合作提供，无涉版权。作者如有异议请与总库或学校联系。