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1.
大兴安岭森林是受冻土控制下形成和发展的,保存了大量淡水资源,形成了冷湿生态环境。大兴安岭林业持续发展必须按特殊方式经营,建立生态林业,从而发挥其固有的多种效益。 相似文献
2.
Forests produce benefits over and above the revenue yielded from timber and other wood based products. Most important among these may be the recreational benefits for visitors, which have been examined in several studies. Total benefits for residents are perhaps more accurately captured in property values since, ceteris paribus, the price of a house reflects willingness to pay to live near an environmental amenity such as a forest to gain access to it, and also the amenity (non-use) value of the forest in so far as it creates a pleasant landscape. However, the total non-priced value of forestry is not the sum of HPM and ITCM benefit estimates. Recreational benefits will typically be less, and will be subsumed in the HPM estimates, since the hedonic price is partly induced by the value of recreational access. 相似文献
3.
林业企业信息化面临的问题及对策 总被引:5,自引:0,他引:5
面对信息化时代的到来,企业信息化成为企业生存和发展的关键,文章从目前我国林业企业的现状出发,分析了林业企业信息化中存在的主要问题,并提出了相应的对策。 相似文献
4.
This paper discusses and contrasts two mainroles of forestry in light of the debate on theglobal climate. As the main problem is relatedto the increases of the CO2-concentrationin the atmosphere, forests may be viewed aspart of the alleviation of the problem throughtheir function as (i) a source of biomass forenergy production, which may replace fossilfuels and thus indirectly reduceCO2-emissions, and as (ii) carbon storage,since a growing forest extracts atmosphericCO2 and fixes it as carbon in biomass. Inthe Scandinavian forestry, logging residues areincreasingly being used for energy production.In this paper the value of forests as a sourceof bioenergy is added to the traditional timbervalue. Formulated as a joint production modelwithin the Faustmann framework, the effect ofthis addition on the optimal rotation length isdiscussed. Based on data for spruce, thedominant species in the Scandinavian forestry,it is demonstrated that the rotation length isshortened compared to the standard Faustmannmodel. Shorter rotation length implies lesscarbon storage. Therefore, in this modelwithout explicit regard to the social carbonstorage value of the forest, the gains in termsof the climate problem from utilisation offorest biomass for energy production are beingdiminished by the value of reduced carbonstorage. The carbon value of the forest is thenadded to complete the model, with the effect ofincreasing the rotation length, a result thatis well known in the literature. Finally, theempirical effects of the interaction of thesetwo climate-related value elements of theforest are discussed. 相似文献
5.
Anne-Sophie Crépin 《Environmental and Resource Economics》2003,26(4):625-646
Recent research in natural sciences shows that the dynamics in boreal forests are much more complex than what many models
traditionally used in forestry economics reflect. This essay analyzes some challenges of accounting for such complexity. It
shows that the optimal harvesting strategy for forest owners is history dependent and for some states of the forest, more
than one strategy may be optimal.This paper confirms earlier literature on shallow lakes and coral reefs and shows that this
kind of phenomena seem much more common than previously thought. They are valid for a wide range of ecosystems that cover
large surfaces and they do not depend on the choice of some specific function to model the non-linearity. There are also indications
that theses results could be obtained even for resources with concave growth if at least one species with non-linear growth
affects their dynamics. 相似文献
6.
刘兴贵 《生态经济(学术版)》1995,(3)
本文运用大量的试验研究示范成果,阐述了生态林业对高寒阴湿地区农业生产和商品经济的发展所起的重要作用,认为开展生态林业建设是高寒阴湿山区解决燃料,改善环境,提高经济效益,增加群众收入,实现脱贫致富的有效途径。 相似文献
7.
生态林业可持续发展的资金筹集 总被引:1,自引:0,他引:1
中国生态林业建设面临严重的资金问题,本文通过对我国生态林业发展的资金特点进行研究,分析筹资面临的困难和资金缺口,旨在探讨生态林业资金筹集渠道的财政方式和市场方式,为研究解决生态林业建设资金筹集问题提供思路。 相似文献
8.
现代林业与生态经济林业理论和实践 总被引:4,自引:2,他引:2
试述现代林业的含义;浅释生态经济林业理论与推进现代林业建设的意义;通过分析中国森林生产力状况提出存在的矛盾,试论发展林业的主战场、由中央直接管理全国林业企业局、和建立集约化经营森林的制度与措施等发展森林生产力的意见。 相似文献
9.
现代林业集约化森林经营的思考 总被引:10,自引:1,他引:9
实行森林经营集约化是缓解森林资源危机的科学途径;反思林业机构设置对现代林业建设的影响;提出森林经营的关键在于把林况和经营措施落实到山头地块,编好和严格执行森林经营方案;小班林木经营的好坏,决定集约化森林经营的成败。 相似文献
10.