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文章以义丰镇绿地系统规划为例,分析快速城市化背景下小城镇绿地建设出现的问题。提出构建稳定镇域大环境生态绿地格局、发展森林式绿地、体现地域文脉及实现多功能复合的小城镇绿地系统规划思路。
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构建森林式工业园区绿地体系——以苏州工业园区绿地系统规划为例 总被引:2,自引:1,他引:1
本文以苏州工业园区绿地系统规划为例,阐述并分析了景观生态学原理在城市绿地系统规划中的运用,尝试通过营造有秩序的森林式绿色景观体系,塑造鲜明的工业园区绿地系统特色,旨在为城市新区、工业园区绿地系统规划做出有益探索。
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当前在城市总体规划完成后才进行绿地系统规划,这样导致绿地建设的滞后性,为加快生态县建设,德化应加快绿地系统规划,文章在研究国内外有关城市绿地系统规划建设的基础上,提出德化县绿地系统规划的指导思想与内容。
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基于景观生态学的城市绿地系统规划——以葫芦岛市为例 总被引:2,自引:1,他引:1
概述了景观生态学的基本原理及城市绿地系统规划中的景观生态学特征,并以葫芦岛市为例,探讨了如何基于景观生态学原理进行绿地系统规划。
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马鞍山城市绿地系统规划 总被引:3,自引:2,他引:1
分析了马鞍山市绿地系统现状及城市热岛效应,以景观生态学原理为理论指导,以自然山水人文资源为生态框架,以可持续发展为目标,提出了山水生态园林城市绿地系统规划。
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基于层次分析法对海尔物流系统的评价 总被引:3,自引:2,他引:1
介绍海尔物流系统的相关内容,构建物流系统绩效评价指标体系,并从物流工程角度对海尔物流系统评价指标进行分类。利用层次分析法确立海尔物流系统中各指标的影响程度,为该物流系统应优先改进哪些指标,如何进行利润分配提供依据。 相似文献
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基于“CIS”的园林标识系统的功能研究 总被引:1,自引:0,他引:1
在总结前人有关标识研究的基础上,创新性地结合CIS战略,归纳梳理了园林标识系统的5大功能:创建无形资产的功能、界定领域的功能、服务的功能、管理的功能和美学的功能。通过提升和完善园林标识系统的功能,使得园林标识系统成为园林的使用者、经营管理者和设计者之间建立良好交流的重要载体。 相似文献
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通过对绿色基础设施相关概念的描述以及其概念中可与绿地系统规划相关联内容的分析,探讨了在绿地系统规划中融入"绿色基础设施"的规划建设方法,针对绿地系统规划中现实存在的一些问题提出了相应的对策与建议,以实现更加生态化、可行性高的规划结果。 相似文献
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通过对大穆溪景区景观特色和内部道路现状的分析,指出不应片面强调景区内部道路的交通疏导功能,其景观构建功能才是本质内涵;合理运用其景观建设功能,能够有效展现景区的本质神髓和地域总体风格。并在点、线、面与空间的4个景观构成层次上提出大穆溪旅游景区道路系统的景观建设构想,探讨旅游区充分利用景区内部道路系统展现景观特色,实现空间结构优化的途径。 相似文献
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环境经济综合核算体系研究 总被引:1,自引:0,他引:1
对联合国国民经济核算体系,即SNA中心框架和附属卫星帐户框架进行了全面的分析;对将环境资源因素与经济活动联系起来的环境经济核算帐户SEEA的结构、要素以及估价方法进行了探讨;并对SEEA中存在的不足,提出了若干完善的建议,以期进一步深化对环境资源核算的研究,为可持续发展提供有数据支持的框架与途径。 相似文献
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基于GIS的专家系统和决策支持系统在林业中的应用研究综述 总被引:1,自引:0,他引:1
基于GIS的专家系统和决策支持系统应用研究,极大地提高了数字林业信息化水平。介绍和评述了当前地理信息系统(GIS)、专家系统(ES)、决策支持系统(DSS)在森林防火、营造林、森林病虫害防治和森林资源管理等领域的应用;分析了GIS,ES和DSS在林业中应用所存在或面临的主要问题;提出了在林业应用中的发展前景。 相似文献
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《Southern Forests》2013,75(3-4):163-171
The Loblolly pine (Pinus taeda L.) plantation area in north-east Uruguay was 108 000 ha in 2008. Recent industrial capacity developments have resulted in major structural changes. Silvicultural system selection depends on site productivity, costs, timber prices and public policies. This study aimed to assess economic returns for two silvicultural systems in north-east Uruguay, in scenarios with and without a plantation subsidy: System I, with a short, 12-year rotation, primarily for small logs; and System II, with a longer, 24-year rotation. For System I, the underbark volume was 198 m3 ha?1 (mean annual increment16.5 m3 ha?1 y?1) and land expectation value (LEV) at a 9.7% discount rate was US$561 ha?1 and US$442 ha?1, with and without subsidy, respectively. System II resulted in 318 m3 ha?1 underbark volume (13.2 m3 ha?1 y?1) and the LEV was US$860 ha?1 and US$771 ha?1, with and without subsidy, respectively. System I was more profitable than extensive cattle husbandry only when the distance to mill was equal to or less than 60 km and wood millyard prices were equal to or higher than US$27.8 m?3 and US$28.8 m?3 with and without subsidy, respectively. Values for System II, in which the main product was a mix of sawlog diameters, were positive and higher than those for System I, both with and without subsidy. If a company invested in forest plantations without due provision for early silvicultural treatments, such as pruning and precommercial thinning, a high risk of financial loss would ensue. Long-rotation sawtimber regimes similar to System II would be more profitable and offer a lower risk of financial losses. The results suggest subsidy withdrawal in Uruguay should not lead to changes in silvicultural systems; in fact, it rendered regimes designed for low-value wood, such as System I, even less advisable. 相似文献
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Information about traditional and unreported agroforestry systems could be useful as a basis for developing adoptable innovations.
The Quezungual System, found in the department of Lempira in western Honduras near the border with El Salvador, is one such
indigenous system. The distinctive feature of the system is the existence of various naturally-regenerated trees and shrubs
that are pollared to a height of approximately 1.5 metres. Farmers also leave taller trees in the fields and these include
Cordia alliodora (laurel) and various fruit trees such as Psidium guajava (guayabo). A variety of crops is grown within the
System including Zea mays (maize), Sorghum bicolor (sorghum) and Phaseolus vulgaris (beans). Advantages of the System, identified
by farmers, include retention of soil moisture, production of fruits and timber, and the fact that plots can be cultivated
for longer periods than is normal practice before being left in fallow. One of the prerequisites for the establishment of
the System is that farmers abandon the practice of burning their fields prior to the beginning of the rains in April. Those
practising the Quezungual System are smallholder farmers living in areas with a scarcity of land. Farmers have customary but
not legally- recognised title to their land and many of them have fewer than 2.5 ha of land, much of it on slopes from 5%
to 50%. There is growing adoption of the System because of the direct benefits to the smallholder farmer.
This revised version was published online in June 2006 with corrections to the Cover Date. 相似文献