Profiles of forestry contractors and development of the forestry-contracting sector in Sweden

Abstract

Contractors perform the majority of forestry activities in Sweden, yet little is known about the development of their company structures and strategies. By analyzing data from the Swedish Forest Agency's yearly survey to forestry contractors for 2006–2009 and comparing the results with previous data for 1993–1998, we examined the current profiles of Swedish forestry contractors and their recent development. For 2006–2009, responses were received from 700 to 770 forestry contractors, corresponding to ca. 20% of the estimated total number of Swedish forestry contractors. In 2009, 60% of contractors were mainly performing logging activities, whereas 30% were mainly performing silvicultural activities. Between 1993 and 2009, the number of contractors increased by ca. 80%, while the number of forestry working contractors and their employees increased by 157%. These increases were mainly due to increased silvicultural activities. Although one-person enterprises still dominate among Swedish forestry contractors, most logging work is performed by small-sized enterprises, whereas most silviculture work is performed by large-sized enterprises. Our study suggests that there is an increased dependency upon contractors and forestry contractors have become more diversified, but still specialized, in the type of work they perform.     

Visitor preferences of thinning practice in young even-aged stands of pedunculate oak (Quercus robur L.): comparing the opinion of forestry professionals in six European countries

This study compared visitor preferences of forestry professionals across six European countries (Sweden, Denmark, Great Britain, Austria, Romania and Portugal) using a questionnaire survey. The 598 interviewees were asked to rank photographs depicting recently thinned experimental plots in a 13-year old stand of pedunculate oak (Quercus robur L.) according to the criterion: “Which forest environment do you prefer as a visitor?” The plots represented five different residual stem densities: 7000 (no thinning, very high stem density), 5300 (heavy thinning, high stem density), 1000 (very heavy thinning, medium stem density), 300 (extremely heavy thinning, low stem density/open stand) and 100 (solitary trees, very low stem density/very open stand) stems ha^?1. The results indicated geographical variation in the preferences for different thinning practices in young stands of oak. Portuguese, Austrian and Romanian respondents generally favoured thinned, but dense stands, whereas Danish and British respondents preferred very heavily thinned stands. Swedish respondents preferred open stands resulting from extremely heavy thinning. Photographs taken along rows were favoured to photographs across rows, indicating a preference for scenes offering perspective and accessibility. The results indicate a variation of visitor preferences among forestry professionals for different silvicultural regimes. We interpret this in the context of national traditions and forestry paradigms that influence the shaping of preferences.     

抚育间伐对辽东山区3种林型林分总断面积和总收获量的影响

利用几十年的定位观测数据,分析了抚育间伐对辽东山区红松人工林、天然次生蒙古栎林和人工诱导的阔叶红松林3种林型林分总断面积和总收获量的影响。结果表明:与对照区相比,抚育间伐没有提高红松人工林的林分断面积和蓄积总生长量,但极强度和强度间伐能提高红松人工林的林分断面积生长率。林分总断面积随着间伐强度的增加先升高后降低,各间伐强度均能提高林分总断面积,极强度间伐除外。抚育间伐能提高红松人工林林分蓄积生长率,弱度区除外;红松人工林林分总收获量随着间伐强度的增加先升高后降低,各间伐强度均能提高林分总收获量,中度间伐效果最好。抚育间伐能提高蒙古栎林林分断面积和蓄积总生长量、生长率以及林分总断面积和总收获量,各指标随着间伐强度的增加先升高后降低,中度间伐效果最好。抚育间伐能提高人工诱导的阔叶红松林林分断面积和蓄积总生长量、生长率以及林分总断面积和总收获量,林分断面积和蓄积总生长量、林分总断面积和林分总收获量随着间伐强度的增加而升高,林分断面积和蓄积生长率随着间伐强度的增加先升高后略有降低,强度间伐效果最好。可见,合理的间伐强度能够提高3种林型的林分总断面积和总收获量。     

林业应为江西在中部地区崛起提供强大支撑--"江西在中部地区崛起,林业的定位和作为"研究报告

林业是经济和社会可持续发展的重要基础,是生态建设最根本最长期的措施。江西在中部地区崛赶,应赋予林业以重要地位。在江西的产业结构调整中,确立了建设“三个基地,一个后花团”的发展战略,林业应为此提供强大支撑。在研究我国中部地区及东部邻省林业发展经验及优势产业比较的基础上,按照我国林业历史性转变的指导思想,提出了“确立以生态建设为主的林业可持续发展的定位和作为”。     

福建森林资源现状和林业可持续发展建议

本文概述了福建森林资源发展所具备的基础；评述了制约福建森林资源良性发展和优势发挥的５个主要问题；提出福建林业可持续发展的５点建议：（１）把扩大森林资源放在首要位置；（２）重视林业的特殊地位，稳定投入，加大扶持；（３）提倡林工结合，优化结构，加强行业管理；（４）依靠科技进步，促进林业可持续发展；（５）加强领导，健全政策，增强全民林业可持续发展意识。     

雾灵山林区居民生活状况调查与经济发展对策研究

通过对雾灵山深山区3个村庄经济状况的调查,分析了其经济落后的主要原因,并有针对性地提出了解决途径,为生态环境建设和改善山区居民生活、经济发展等问题的解决提供了借鉴。     

云南省主要林业有害生物发生现状及综合治理发展方向

叙述云南省近几年来有害生物发生现状.结合最近国内外有害生物综合治理(Integrated Pest Management,IPM)的研究成果,阐述云南省林业有害生物综合治理的发展方向-林业有害生物可持续控制(Sustainable Pest Management in Forest ,SPMF).     

浙江省庆元县林业龙头企业引领竹产业高质量发展的建议

竹产业是浙江庆元县经济发展的主导产业之一。目前浙江庆元县拥有14家林业龙头企业,新时代面对机遇和挑战,林业龙头企业在引领竹产业高质量发展中发挥着重要作用。文章主要阐述了庆元县林业龙头企业基本情况和特点,对林业龙头企业引领竹产业高质量发展提出了建议。