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从野生花卉在品种、投资和景观性三个方面的主要特征分析入手,对野生花卉在城市公园中的景观应用形式进行详细分析,并对野生花卉的应用前景进行总结和展望。 相似文献
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对海河河西段沿岸绿化植物量进行了统计,运用大量数据展现出了河西区提升海河沿岸绿化景观成果和城市建设,吸引大量投资者驻足,以实现该地区及周边商贸、文化、经济的跨越,为促进河西整体经济发展提供参考。 相似文献
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研究采用AHP法对景观空间视觉吸引要素评价指标进行量化分析,针对甄别景观空间视觉吸引要素实验提取的7类吸引要素构建模型假设、比较判别矩阵和求解,分析模型的优缺点,计算出层次单排序和总排序的结果并进行一致性检验,得出该7类视觉吸引要素在各类景观空间中对风景资源的影响比重按从大到小排序为尺度和距离(0.293 7)、实体(0.217 8)、色彩(0.191 2)、植物(0.115 2)、瞬逝自然景象(0.093 5)、水体(0.045 1)、质地(0.043 6)。模型计算结果与经验判别法的结果基本一致,说明AHP法对景观空间视觉吸引评价具有客观量化描述的准确性并具有一定的科学意义,这为景观空间视觉吸引评价提供了理论依据。 相似文献
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2001年9月5日,资兴市青腰镇坪田村小坪田组与青腰镇企业办职工黄水廷及其妻弟李长庚俩人(均另案处理)签订了一份木材购销合同,决定将小坪田组“老虎垅”、“天地垅”两处集体山场间伐的杉木销售给黄、李俩人,双方口头约定,林木采伐指标及办理林木采伐许可证等事项由黄、李俩人负责,小坪田组自行组织劳力上山采伐,然后黄、李俩人按实际采伐木材的数量进行收购。同年9月13日,镇林管站工作人员与小坪田组组长刘海如、出纳何和林以及黄永廷、李长庚等人到该组“老虎垅”集体山场进行了伐区作业设计,并于9月25日办理了“老虎垅”山场间伐杉木34立… 相似文献
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高尔夫球场景观由高尔夫硬质景观和高尔夫软质景观组成,其中高尔夫硬质景观可分为点、线、面三类。点的元素主要有建筑、沙坑、小品;线的元素主要有道路的起伏变化、驳岸的曲线等;面的元素主要是场地造型的变化。软质景观主要指植被和水体,植被以草坪为主,水体主要形式为湖泊和小溪。所有景观元素的设计必须体现使用、审美和生态三大功能的平衡。 相似文献
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指出了环境资源是特色小镇打造的重要依托,以"城市双修"理念为指导,结合徐州特色小镇建设工作,对不同类型特色小镇的环境建设提出了建议和具体做法,以保护并利用现有环境,营造特色景观,增强特色小镇空间的可识别度,尤其对于环境已受到不可逆破坏的城镇,进行环境修补后良好的环境可以成为新的旅游资源,并且达到吸引投资的效果。 相似文献
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“里山倡议”是透过农业生物多样性的保育,平衡生态环境、生产和生活文化,利用自然资源和传统文化知识,确保社会—生态生产地景的永续利用,建立人与自然的良性互动。文中以台湾地区林务局推动里山倡议概念中的“林下经济永续经营可行性之研究”为基础,梳理里山倡议在社会—生态生产地景的运作内容及框架;在实践过程中强调传统知识和现代技术的融合,对山林地景的保护、恢复及营造,借由城乡交流和互惠,以地景为尺度、社区为主体,透过培力(充权)社区参与自然资源经营,构建生态与生计共存的永续经营模式;总结台湾社区里山倡议的发展过程,跨地域整合及促进生态福祉的整体策略架构。 相似文献
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再论"结构化森林经营" 总被引:14,自引:1,他引:13
在回顾和评价现有可持续森林经营途径的基础上,本文着重论述了"结构化森林经营"的科学性和可行性.文中指出,结构化森林经营的目标--培育健康森林,符合现代森林经营理念;经营理论建立在结构决定功能的系统法则上,理论基础稳固;经营方法充分利用了"基于相邻木关系的森林空间结构量化分析方法"的科学性、简洁性和可操作性,从而使林分结构调整成为可能;经营模式以健康森林结构的普遍规律为范式,以保证林分结构调整目标明确;经营原则在很大程度上借鉴并进一步量化了德国近自然森林经营的原则,有效规避经营风险.总之,结构化森林经营不失为一种简洁、操作性强、科学的森林可持续经营方法. 相似文献
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We evaluate the economic efficiency of even- and uneven-aged management systems under risk of wildfire. The management problems
are formulated for a mixed-conifer stand and approximations of the optimal solutions are obtained using simulation optimization.
The Northern Idaho variant of the Forest Vegetation Simulator and its Fire and Fuels Extension is used to predict stand growth
and fire effects. Interest rate and fire risk are found to be critical determinants of the superior stand management system
and timber supply. Uneven-aged management is superior with higher interest rates with or without fire risk. Alterations in
the interest rate affect optimal stocking levels of uneven-aged stands, but have only minor effects on the long-run timber
supply. Higher interest rates reduce rotation length and regeneration investments of even-aged stands, which lead to markedly
reduced timber supply. Increasing fire risk increases the relative efficiency of even-aged management because a single age
cohort is less susceptible to fire damage over the course of the rotation than multiple cohorts in uneven-aged stands. Higher
fire risk reduces optimal diameter limit under uneven-aged management and decreases optimal rotation length and planting density
under even-aged management. 相似文献
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为提高林业资源的管理水平 ,推进林业资源管理的科学、高效和可靠 ,应用数据库技术和面向对象的开发方法 ,以VisualBasic为工具 ,进行了木材出省批车计划信息系统的设计与开发 ,实现了基本设置、批车计划、出省证明的录入、查询、统计等功能。在黑龙江省林业厅的应用效果良好 相似文献
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旅游管理体制如何适应和促进旅游业的发展,一直是业内外人士探索的既具理论性又具实践性问题。本文以大别山国家森林公园为例,从森林旅游资源的价值特性和权属特性出发,通过分析我国现行森林旅游业管理体制现状及存在的问题,提出我国旅游管理体制的改革与创新的总体思路,建议实行“四权分离”的管理模式和“社区网络式”的管理模式。 相似文献
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Guillermo Martínez Pastur Emilie Andrieu Louis R. Iverson Pablo Luis Peri 《Agroforestry Systems》2012,85(3):315-318
Forest ecosystems are impacted by multiple uses under the influence of global drivers, and where landscape ecology tools may substantially facilitate the management and conservation of the agroforestry ecosystems. The use of landscape ecology tools was described in the eight papers of the present special issue, including changes in forested landscapes due to agricultural and forestry activities, landscape changes due to recent intensification of agriculture, and the impacts of agroforestry as compared to natural forest ecosystems. Landscape ecology can improve the economic, environmental and social values of agroforestry, and this knowledge should help to develop new management alternatives for agroforestry. We believe that these papers will inform management at the landscape level, especially in agroforestry landscapes, offering new tools for management and conservation. 相似文献
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Potential of Community-Based Forest Management to Mitigate Climate Change in the Philippines 总被引:1,自引:0,他引:1
Community-based forest management (CBFM) is the principal strategy in managing inhabited ‘forest land’ in the Philippines.
It involves the participation of local communities in various forestry activities to achieve sustainable forestry, advance
social justice and improve socioeconomic welfare, and promote a stable and healthy environment. This paper analyses the potential
benefits of agroforestry farms in CBFM sites to mitigate climate change. The incorporation of trees in farms and landscapes
has led to enhanced carbon storage and sequestration. Half a million hectares of agroforestry farms in CBFM sites in the Philippines
are estimated to store 25 MtC while sequestering 2.7 MtC annually. Lessons are drawn from three carbon sequestration projects
under development using CBFM as the main approach. Income from carbon credits is not sufficient to recover the cost of tree
planting. The transaction costs of forestry CDM projects are substantial and could prove to be the greatest barrier to project
fruition. Government institutions must find ways to encourage project developers by simplifying rules and regulations for
forestry carbon projects. Forest definition must be assessed. Project developers and the government could also explore the
voluntary carbon market which is more flexible than the CDM market. Policy and technical studies must be conducted to ascertain
the potential of the REDD for CBFM sites in the country. 相似文献
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瑞典森林认证之借鉴与启示 总被引:3,自引:0,他引:3
森林认证是实现林业可持续发展最有效的手段之一。为了确保森林可持续经营的实施,瑞典在开展森林认证工作方面做了很多探索和尝试,形成了一套有序的森林认证管理制度,这给四川推进森林认证工作带来了一些新的启示。 相似文献