浏阳市楠竹业现状及发展对策

浏阳市有楠竹面积４５５万亩,蓄积５３６９万株。文章介绍了浏阳市楠竹开发的现状及存在的问题,认为发展楠竹产业的对策是：增加科技投入,提高经营水平;强化林政管理;抓好笋用竹林的培育;减轻林农税费负担,增加资金投入;狠抓龙头企业和拳头产品,加快楠竹产业化进程。     

桃源楠竹林生长规律初步探讨

楠竹(毛竹),生长快,用途广,经济价值高。研究楠竹生长规律,揭示楠竹各部分相关关系,可以为发展楠竹、充分利用楠竹、提高楠竹利用率提供依据,可以为研究楠竹与环境间能量交换,贮存和消耗,不断提高生产力提供依据。     

简讯

隆回林农开发楠竹产业发财致富目前,湖南省隆回县楠竹大户达8000余户,楠竹年产值过亿元,楠竹成为当地的支柱产业。近年来,该县县委、县政府把楠竹产业开发当作贯彻落实科学发展观的实践,大力调整和优化林业产业结构,     

通道县地连国有林场楠竹群落调查研究

指出了楠竹是一种非常好的生态、用材兼用竹种,一方面盘根错节的根条较好地固结着土壤,另一方面其茂密的枝叶,阻挡降雨对土壤的冲刷。2000年以来,地连国有林场在原有楠竹基础上大力营造楠竹林,采取马尾松混交林、楠竹阔叶混交林、楠竹纯林等方式造林。现已形成一定的规模,楠竹长势良好,为林场增加一个群落。对楠竹群落结构特征及演替进行了研究,为通道县楠竹发展提供科学依据。     

双峰县靠政策推动楠竹产业开发

近几年来,双峰县委、县政府在调整优化农业产业结构中,走“山上搞低改,山下搞加工,山外大流通,科技创高效”的楠竹产业发展之路。全县共完成楠竹抚育1万多公顷,兴办各类楠竹加工企业300余家,楠竹销售加工创年产值1.2亿元。过去,由于对楠竹产业开发意识不强,致使资源管理不善,经营粗放,经济效益差。为此,县委、县政府决定把楠竹开发做大做强。一是制定政策,激发群众开发楠竹的热情。县委、政府出台了《关于楠竹产业开发实施意见》,规定“允许鼓励采取招标、承包租赁、转包、股份合作等形式搞楠竹规模经营;允许拍卖荒山、荒地、荒坡、荒滩搞楠…     

市委书记谈楠竹产业化发展

前段，邵阳市委书记周本顺在调查研究后，给各县市区委书记写了一封信，信中充分阐述了发展楠竹的十大好处，号召大兴楠竹产业。近日，周本顺在听取邵阳市楠竹产业开发情况汇报时，对去冬今春我市 30万户农民种楠竹、 40万人从事竹产业， 12个县市区中 136个乡镇大办高标准楠竹示范点取得新造楠竹 2920公顷的好成绩给予了充分肯定，并再次就楠竹产业化发展作了深刻的阐述。 　　周本顺要求各级党委、政府深化发展楠竹产业对促进邵阳经济、优化产业结构的认识，高度概括了楠竹的五大产业地位：一是由于邵阳市楠竹资源分布广、数量多、且粗加…     

楠竹栽培与管理

一、楠竹栽培及抚育 1、造林地的选择。楠竹是浅根性树种,即需水又怕水。因此,造林地应选择土层深厚（50厘米以上）、肥沃、排水良好的酸性土壤。．从土壤的母岩来看,板页岩发育的土壤适宜于楠竹生长。石灰岩区、四纪红壤区的死黄土不利于楠竹生长,过于平坦和低矮的地方也不宜于营造楠竹速生丰产林。凡土壤过粘或积水地、瘠薄干燥且多风的地方,不适宜楠竹的生长。     

贵州赤水楠竹杆形结构规律

楠竹竹杆各器官直径、高度、壁厚、重量等结构因子的变化规律和相互关系,主要是由楠竹自身遗传特性所决定。同时一定程度上受到不同气候,立地条件所影响。研究楠竹杆形结构因子规律性的目的,是了解楠竹杆形结构各因子在不同部位的变化情况和它们之间的相关性。为研究楠竹生长、竹林产量、竹材特性和利用提供科学依据。     

不断总结经验 促进楠竹生产

楠竹,是我省主要用材树种之一。它具有生长快、成材早、伐期短、材质好、用途广、收益长的特点。我省土质、气候适宜于楠竹生长,群众对经营楠竹有悠久的历史和丰富的经验。在毛主席“农业学大寨”和“竹子要大发展”的伟大号召下,我省广大干部和群众,认真贯彻毛主席的指示,既抓田,又抓山,楠竹生产发展很快,竹林面积不断扩大,蓄积量逐渐增多。随着楠竹生产的发展,楠竹科研工作不断深入,三结合的试验小     

楠竹栽培与管理

<正>一、楠竹栽培及抚育1、造林地的选择。楠竹是浅根性树种,即需水又怕水。因此,造林地应选择土层深厚(50厘米以上)、肥沃、排水良好的酸性土壤。从土壤的母岩来看,板页岩发育的土壤适宜于楠竹生长,石灰岩区、四纪红壤区的死黄土不利于楠竹生长,过于平坦和低矮的地方也不宜于营造楠竹速生丰产林。凡土壤过粘或积水地、瘠薄干燥且多风的地方,不适宜楠竹的生长。     

马尾松林火灾后生态效益损失动态评估

依据林分生长规律和经营模式,建立生态效益损失动态评估模型;对广州从化30年生马尾松林分森林火灾后,经过人工更新的林分45年内所产生的生态效益进行模拟,认为该林分若未遭受森林火灾,封山育林模式的生态效益最大;灾后更新林分需要30年才能恢复相当于灾前林分的生态效益;其间生态效益的损失量为传统静态定量估算的25.92倍.如果林分采取30年轮伐的经营模式,在第19年左右时轮伐林分和灾后更新林分所产生的生态效益平衡;此后人工更新林分的生态效益渐高,而受灾林分经人工更新后第17年时的生态效益近似于轮伐林分的稳定值.轮伐型所带来的总效益在前6年大于封育型的总效益,但第7年以后其总效益开始小于封育型经营模式的生态效益.     

大庆龙凤湿地自然保护区综合效益评价

主要阐述大庆龙凤省级湿地自然保护区现状与生态环境的多样性,并尝试着从生态效益、社会效益、经济效益3个方面对湿地进行综合效益评价分析,从而提出湿地保护区保护、管理等方面措施。     

早期银杏林下复合经营模式的综合效益评价

在对北京房山地区试验基地建立的三种银杏林下复合经营模式进行样本调查和定点观测的基础上,参考国内外林下复合经营系统的综合效益评价研究进展,应用层次分析法,对3种银杏林下复合经营模式:银杏-平菇模式(M1),银杏-板蓝根模式(M2)和银杏-红豆模式(M3),分别从生态效益、社会效益、经济效益和综合效益进行了分析和评价。评价结果表明,在银杏林下复合经营模式的第一年经营中,银杏-平菇模式的效益最好,明显好于M2和M3模式。这为银杏林地的早期复合经营提供了理论依据,并为林地经营管理者提供有效的决策支持。     

A socio-demographic examination of the perceived benefits of agroforestry

Agroforestry has been suggested to produce an array of ecological and socio-economic benefits that not only reach their adopters, but society as a whole. In spite of strong evidence of the benefits of agroforestry, there is a lack of understanding of the public perceptions of those benefits, which prevents the development of benefit-based promotion strategies of agroforestry products. Thus, this study examines the awareness of these benefits among residents and explores whether perceptions vary across individuals with different socio-demographic characteristics. An on-line platform was used to survey three panels of residents from Missouri, Pennsylvania and Texas. Overall, respondents had a neutral perception of the importance of the ecological and socio-economic benefits that agroforestry farms provide to society when compared to farms employing conventional agricultural practices. These results stress the need to increase public awareness of agroforestry practices and their benefits to more strategically position their products among the final consumer. Gender, education level, and residence location were significantly associated with the perceived ecological benefits produced by agroforestry farms and to a lesser extent with the socio-economic benefits. Results also showed that females and young individuals have a greater awareness of several benefits produced by agroforestry farms. Critical marketing implications to stimulate the purchase of agroforestry products (e.g., berries, nuts) among specific groups of consumers are discussed.     

Production efficiency of community forest management in Nepal

Nepal's forests have been transferred to community management with the twin objectives of supplying forest products and addressing local environmental problems. Community forests provide a range of benefits, from direct forest products such as timber and non-provisioning ecosystem services such as soil protection. There is a need to understand the extent to which environmental and community benefits are joint products or substitutes. Stochastic frontier production analysis (SFPA) was used to study the production relationship between environmental and community benefits and production efficiency analysis to study the extent to which communities were able to achieve maximum benefits. SFPA indicated that the magnitude of direct forest product benefits was influenced by various socioeconomic and forest related factors such as distance to the government office, community forest size, and group heterogeneity negatively affect community forest products benefits. On the other hand, links to the market, forest products dependency, and the number of households in the community augment benefits from community forests. In addition, forest product benefits and environmental benefits were complementary to each other. Production efficiency analysis showed that communities were not producing forest products efficiently. Factors such as social capital contributed positively to production efficiency, whereas caste heterogeneity in the executive committees of community forest user groups was negatively associated with efficiency. These findings can contribute to better implementation of community forestry programmes in Nepal, improving the welfare of communities by increasing direct forest product benefits without environmental harm.     

厂矿园林绿化的特点与效益评价

基于厂矿园林绿化立地条件的特点,阐述了厂矿园林绿化树种选择的原则和各类树种配置比例,并从环境效益、社会效益和经济效益3个方面,对厂矿园林绿化进行了效益评价。     

Research on Evaluation of Forest Ecological Benefit

Forests possess many kinds of ecological functions,which, if expressed in monetary value, would be moreimpressive and definite to make the public as well asthe government recognize its comprehensive effectsand values, and to enhance their consciousness of forestresources protection. However, to date there is nostandard system about how to evaluate forest ecologicalbenefits. Therefore, it is exigent for us to find out howto identify its public benefits and to make scientificevaluation on variou…     

抚育间伐综合效益评价体系综述

抚育间伐是森林经营的关键措施,对其进行合理的综合效益评价有重要的生态学、社会学及经济学意义。在简要阐述抚育间伐的作用和目的的基础上,对其生态效益、社会效益及经济效益3大综合效益的评价指标进行了论述,并对今后的研究工作提出了建议。     

湖南省"长防林"生态效益监测站设计与布局研究

为了全面、科学评价长江防护林工程的综合效益，根据湖南省林业区划和“长防林”生态功能划分的实际情况，建立2个生态效益监测核心站、30个监测点。通过长期监测、计量，使长防林工程的生态效益价值化、数量化；为其它防护林工程的规划设计、生态公益林效益补偿以及公益林经营管理提供科学依据，为政府部门决策提供参考。     

森林火灾生态效益损失评估方法探讨

通过以一起森林火灾为例，针对森林生态效益的内涵，进行了森林生态效益损失的评估。量化了因火灾造成森林生态效益损失的货币值，并进行了一些森林生态效益损失评估方法的初步探讨。