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太行山是京津冀晋豫的生态屏障和水源涵养地,也是著名的革命老区和最大的集中连片国家级贫困区。因其具有特殊的地理优势、政治地位和生态意义,各级政府多年来非常重视对太行山的综合开发治理。为了给太行山区乡村振兴和生态文明建设提供借鉴,总结了近40a来河北省太行山综合开发治理方面取得的研究进展,主要包括:辨识了太行山片麻岩区的景观生态经济资源特征是"旱、薄、蚀、穷、低";构建"蓄、集、整、改、排"标准化治理工程技术体系;创建了3种山地生态经济林高效治理模式,即生态林、观赏林、经济林立体配置的生态经济林旅游模式——前南峪模式,生态林和经济林协调发展的生态经济林模式——富岗模式,丘陵区果草畜立体发展的经济林循环模式——绿岭模式;开发了优质核桃、苹果和板栗等特色经济林产业标准化技术体系。 相似文献
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作者通过调查研究提出了5种经济林经营模式,包括多树种混植生态经济林模式、城郊景观经济林模式、保护栽培经济林模式、早产密植经济林模式、早产密植经济林模式、地堰经济林模式。各模式均取得了显著的经济效益。 相似文献
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通过对洪泽湖大堤背水台坡上种植的饲草、经济林等的生长调查 ,提出了背水台坡防护与利用的 3种模式 :草台草坡模式、杜仲台茶叶坡模式和林茶林药立体开发模式。达到了防止水土流失 ,巩固大堤 ,创造经济效益的目的。 相似文献
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四川退耕还林发展中经济林若干问题的思考 总被引:4,自引:0,他引:4
对经济林在生态防护效益、经济效益等几方面存在的缺陷以及目前经济林发展中出现的问题进行了探讨,提出了在退耕还林工程中发展经济林必须注重生态效益,走可持续发展的道路,并以产业化经营带动四川经济林良性发展的思路。 相似文献
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以生态经济学理论为基础,遵循科学性和实用性的原则,并以自然环境差异、土地利用类型、水土流失特征、生态经济功能差异和主要功能为依据,在充分调查研究的基础上,建立苍梧县生态经济型防护林体系3级的分类系统即体系——类型——林种,并将其分为3种类型、19个林种,确定各防护林类型和林种的配置范围和功能;提出具有珠江流域南亚热带季风气候区生态经济特色的防护林骨干布局、片区布局、网络布局的技术方案,为苍梧县珠江生态经济型防护林体系空间结构建设提供了科学依据;提出各区典型林种配置模式19个以及各模式的林种配置范围、防护功能、适宜树种和优良林分模式等,为生态经济型防护林体系结构配置提供具体的操作技术。 相似文献
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《内蒙古林业调查设计》2021,(5)
在国家大力弘扬生态文明建设的背景下,本研究根据包头市青山区的生态经济林建设现状,结合自然生态环境、经济和社会发展条件,提出了青山区生态经济林建设模式即立体栽培模式和庭院式经济林模式;提出了"家庭林场"产业化经营模式、生态经济林与农业、畜禽业复合的生态化产业模式,通过科学规划合理布局及科学和政策扶持,实现生态经济林的可持续发展。 相似文献
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经济林农作经营系统及其研究 总被引:1,自引:1,他引:0
本文从经济林生产的经济和生态两大功能出发,对经济林农作经营系统进行了综合性研究。提出了经济林农作经营系统的主要模式结构及主要特点,分析了经济林农作经营系统的建立原则和建立过程,还探讨了系统的生态经济效益及评估。 相似文献
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对高黎贡山自然保护区的非木材林产品的保护与利用进行了研究。经抽样调查,掌握了该保护区非木材林产品的采集状况。提出了影响本区非木材林产品可持续利用的3个因素,并对其进行了分析,进而阐述了对高黎贡山自然保护区非木材林产品施行合理保护与利用的9点建议。 相似文献
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《Forest Policy and Economics》2001,2(2):167-178
How much to cut and to remain, as well as when to cut is an important decision-making issue in forest management. Unlike forest age, forest stock and harvest levels are applicable to both plantations and natural forests. This paper investigates the optimal forest stock and harvest with the consideration of both timber and non-timber benefits. The impacts of the discount rate, silvicultural cost, marginal timber benefit, and marginal non-timber benefit on the optimal forest stock and harvest are also examined. The results indicate that forest stock should be thickened when non-timber benefits are valued in addition to timber. The optimal steady state stock increases with a decrease in the discount rate, or an increase in marginal non-timber benefit. However, the impacts of the discount rate, marginal timber benefit, and marginal non-timber benefit on the optimal steady state harvest are ambiguous. In addition, a decrease in the discount rate has the same effect on the optimal steady state stock and harvest as an increase in the ratio of marginal non-timber benefit to marginal timber benefit. These theoretical results are illustrated through an empirical example of the US coniferous forests. 相似文献
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世界非木材林产品发展战略 总被引:12,自引:0,他引:12
就世界非木材林产品的内涵、重要性及发展战略等问题进行了论述.保护和开发非木材林产品资源是发展中国家林区脱贫致富和保护天然林资源的重要途径,经济价值巨大,生态效益和社会效益显著.它可为保护我国天然林资源和林区脱贫致富提供借鉴. 相似文献
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京山县经济林产业发展现状与对策 总被引:1,自引:0,他引:1
笔者分析了京山县经济林产业发展的现状,指出了目前经济林产业发展过程中存在产业政策与体制不健全;布局不合理、管理水平低;缺乏龙头企业、经济效益差等方面的问题,并探讨了问题产生的原因.并从转变思想观念、健全产业政策与体制;加大扶持力度、作好市场需求预测;加大科技支撑力度、科学规划产业合理布局;大力培育和扶持龙头企业、推进规... 相似文献
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本文论述了林场、林业局(尤其是经营型林场、林业局)在编制森林经营方案时,进行经济林规设设计的重要性。并以陕西省宝鸡县5个国营林场为例,从投资及效益等方面着手 论证经济林规设的合理性以及在本经理期内为繁荣林场经济,摆脱资源和经济危困等方面所起的作用。 相似文献
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Forest landscape restoration (FLR) is a process that aims to regain ecological integrity and enhance human well-being in deforested
or degraded forest landscapes. To ensure that restoration efforts are successful, the first step is to understand the dynamics
of the forest landscape and the dominant forces responsible for its change. Taking Yong’an city, Fujian province in China
as a case for study, this paper constructed a Markov model to predict the dynamics of the forest landscape based on sample-plot
data of Continuous Forest Inventory at a county level. The study area was divided into eight landscape element types based
on FLR, including approximated primary forest, secondary broad-leaved forest, secondary forest of Pinus massoniana, natural bamboo forest, planted forest, non-timber product forest, degraded forest land and non-forestry land. The analysis
showed the following: (1) the extent of reforestation of planted forest, non-timber product forest and secondary forest of
Pinus massoniana would be greater than that of deforestation of approximated primary forest, broad-leaved secondary forest and natural bamboo
forest. Therefore, the total area covered by forest would increase steadily. (2) Conversely, conversion among different landscape
element types would occur frequently and have high transition proportions. (3) Remarkable decrease of the extent of approximated
primary forest, together with the conversion from degraded forest land to secondary forest, would probably result in the decline
of forest volume. (4) Forest productivity in the meantime will not be maintained or enhanced because of the conversion from
secondary forest to planted forest. These results suggest that the direct and underlying driving force of landscape dynamics
should be understood and addressed in the upcoming studies for remnant approximated primary forest protection, secondary forest
management and degraded forest land rehabilitation. The conclusion is that the Markov model can be used to analyze the forest
landscape dynamics for FLR based on sample-plot survey data of Continuous Forest Inventory at a county level. 相似文献