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1.
文章对鄂温克族自治旗森林立地进行了分类,共划出4个立地类型小区、6个立地类型组和15个立地类型。  相似文献   

2.
本文应用模糊数学理论,在缺或者没有足够的有林地上层树木资料时,利用二类调查和补充调查的资料,选择地形,土壤等主导立地因子。根据择近原则,计算贴近度的方法,划分立地类型亚区、立地类型组和立地类型。  相似文献   

3.
文章在2015年森林连续清查资料的基础上,遵循科学性和实用性的原则,采用综合多因子、多级序的方法,对太岳山森林立地类型进行了划分。以地貌、海拔、坡向、坡度、土壤厚度等因子为主要依据,与中国森林立地分类系统相衔接,将太岳山森林划分为4个立地类型小区,9个立地类型组,19个立地类型。  相似文献   

4.
关于中国森林立地分类与中国森林立地类型两项研究的特征及意义王永安,王可安(林业部中南院长沙市410014)(湖南省林业厅)1弓1言近10多年来,我国森林立地的研究进入了历史上空前繁荣的时期,一些重大的研究项目相继问世并通过鉴定.用于指导林业生产;见诸...  相似文献   

5.
楚雄州森林立地类型的划分   总被引:3,自引:0,他引:3  
将地形因子(海拔、坡位、坡度、坡向)、土壤厚度、植被类型等因素作为依据,进行了楚雄州森林立地类型划分.公布了划分结果.  相似文献   

6.
以2008年森林资源规划设计调查资料为基础,以科学性和实用性兼备的原则,采用综合多因子途径、多级序的方法,对景宁畲族自治县的森林立地类型进行划分。以植被类型、地貌、海拔、土壤、坡度、土层厚度等因子为主要依据划分3个立地类型组,17个立地类型。立地质量为优、中、差分别占林地面积的19.90%、69.11%、10.99%。  相似文献   

7.
文章根据森林立地分类原则及多伦县地形地势、土壤和植被差异,采用立地类型小区立地类型组———立地类型三级分类,共划出4个立地类型小区、8个立地类型组和26个立地类型,旨在满足多伦县森林资源规划设计调查和经营方案编制的需要。  相似文献   

8.
通过收集莫力达瓦达斡尔族自治旗的自然要素资料,依据中国森林立地分类系统、立地类型划分的原则、方法,并综合考虑海拔、地貌、坡向、土壤等立地因子,莫旗共划分4个立地类型组17个立地类型,对各立地类型进行了系统阐述,并对今后的经营利用,提出了合理化的建议。  相似文献   

9.
关于立地类型的概念   总被引:1,自引:0,他引:1  
本文阐述了立地分类的基本单位——立地类型的概念。提出依据选择出的环境主导因子来划分立地类型。为适应立地类型编制和生产应用的需要,在立地类型之上划分立地类型组。  相似文献   

10.
为保持水土,美化、净化环境,提高生态林业建设,在土石方大坝工程措施完成后,通过调查、测量,采用聚类分析法,划分临汾市汾河滩涂微域立地条件类型,分成三类,并结合实际划分成五类,根据所划分的立地条件类型对造林、林种、树种进行规划。  相似文献   

11.
The current forest planning system of Japan has been in place since the formulation of the Forest Law back in 1897. During this time, although addressing specified forests as demonstrated in the system for protection forests, in a more general sense, the execution of the forest planning system has placed forestry management at the core. In other words, it has instead been forest administration delivered in a manner relevant to forestry management. This trend is exhibited in, for instance, policies for the reorganization of common forest, the forest management planning system, forest owners associations, the proceeds-sharing reforestation system, cooperative silviculture management, and valley forestry revitalization; which have all been implemented.In this paper I review the results of these practices and explore the contemporary forest owners pattern of behavior. I also discuss the passive attitudes among forest owners, especially in comparison with the attitudes prevalent during the postwar reforestation era, continuing up to the 1960s, and the current tendency towards neglect in the afforested areas, as well as the increasing number of forest owners giving up forestry practice.In the postwar era (up to the 1960s), forestry had been following an upward trend of development that motivated forest owners to afforest, as this was the optimal choice for increasing the familys stocks for future generations (in the manner of holding an asset), and thus a rapid expansion of plantation forests resulted. By the 1970s, when domestic wood supply became less than a half of all domestic wood demand (it is still declining now), forest owners gradually began to lose interest in reforestation and care of the forest as a method of increasing assets. The current share of domestic wood supply in total consumption has dropped to 20%, and the annual cut volume is only 23% of the annual volume increment.Forests are as much a public property as they are private and, moreover, represent a globally significant resource. Active stewardship, such as materializing internationally agreed notions of sustainable forest management, promoting forest certification systems, and complying with the Kyoto Protocol, are now important issues, both domestically and internationally.The paradoxical gap between current forestry trends and public aspirations for forests is widening with each year, thus creating a grave social problem. I have been focusing on forestry revitalization as the primary step towards the resolution of this issue. As the logical basis for executing this policy, I review the relations between forest resource policies and forestry policies.At the same time, by reviewing the forest planning system and its developmental process, I sought to investigate what new policies would fulfill the need to realize the public functions of forests while revitalizing forestry, form the point of view of forestry policies and their influence on the forest planning system. I have concluded that there is a case for separating forest management from forest ownership in units of forest compartments; namely to establish an incorporative management system by which forest owners can invest in their stands.  相似文献   

12.
以义乌市为例,针对城市林业建设的现状,分析了城市林业建设跟不上城市发展的主要问题是:缺乏规划、生态景观的营造、资金投入,并提出了城市林业要纳入城市规划基础设施,加大科技力度,加快生态景观营造,点、线、面结合等是城市林业建设的必要措施,也是社会经济可持续发展的有效途径。  相似文献   

13.
浅谈城市生态建设与城市林业建设   总被引:4,自引:0,他引:4  
介绍了生态城市和城市林业的概念极其内涵,简单阐述了生态城市和城市林业的关系.论述了城市林业在城市生态建设中的作用和局限性。  相似文献   

14.
介绍了罗定市林业发展的基本情况,指出其存在的问题,并提出推进罗定市林业发展对策。  相似文献   

15.
根据森工企业森林资源现状和实行限额采伐的现实,对林场规模、布局进行了研究分析。目前,林场只有实行撤并重组、科学规划、讲求效益,才能推进森工企业体制改革和实现林业可持续发展。  相似文献   

16.
试谈林权改革及林业可持续发展   总被引:3,自引:0,他引:3  
林业产权制度一直是影响我国林业可持续发展的重要内容。本文首先概述了林权改革的内涵及重要意义以及我国历代林权改革内容和优缺点;其次阐述了林业可持续发展的内涵;最后综合分析了林权改革和林业可持续发展的相互关系,为从政策、制度创新上实现林业的社会、经济和生态环境目标的统一协调发展提供宝贵的意见和建议,从而促进我国林业的和谐发展。  相似文献   

17.
通过对闽侯县林木采伐存在问题的分析,提出商品林采伐管理应遵循依法治林、分类管理和可持续发展模式,以促进木材采伐管理制度的完善,更好地适应新形势林业发展需要,为林农服务。  相似文献   

18.
基于林业政策的商品林经营投资收益与投资风险研究   总被引:4,自引:1,他引:4  
曹建华  沈彩周 《林业科学》2006,42(12):120-125
对商品林经营的投资收益率和投资风险进行测定,分析林业政策以及不同因素对投资收益率和投资风险的影响,进而认识林业政策以及不同因素对商品林经营投资的决策行为的影响.分析得出:现有的政策条件还无法改变商品林经营相对投资收益率低、投资风险大的基本状况,对商品林经营的投资还不能产生足够的激励.  相似文献   

19.
通过分析我市森林经营思想的演变及我市现代林业的特点与基本属性 ,强调林业重新定位及其必要性。提出了建设森林生态市的总体目标、指标体系、战略布局及主要措施  相似文献   

20.
在论述五华区林业基本情况和产业发展现状的基础上,分析了产业发展存在的主要问题,并认为:五华区作为昆明市的主城区之一,生态区位十分重要,林业建设的工作重点是开展林业生态建设、改善人居条件和生态环境;但同时林业产业发展也不能被忽视,它不仅是山区群众脱贫致富的迫切需要也是林业发展自身的需要;据此,提出了五华区林业产业发展的建议和对策。  相似文献   

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