德国林业体系及森林经营技术与管理

通过德国的培训考察，对其林业管理体系与政策、森林经营与理念、生物圈保护、森林公共教育等方面归纳叙述。     

Cooperation in private forestry of post-soviet system: Forest owners’ cooperatives in Lithuania

The current state of cooperation in private forestry in Lithuania is examined, with a focus on the analysis of objectives, organisational structure and the ways forest owners’ cooperatives operate. A postal survey has been used as a main research instrument, the questionnaire consisting of a series of multiplechoice close-ended questions. This paper provides insights into the state forest enterprises and other private companies operating in the private forestry sector, and places forest owners’ cooperatives in a broader context of the private forestry sector. A typical forest owner’s cooperative in Lithuania has up to 10 members and about 20 clients to whom services are provided. The leaders of cooperatives indicate that the optimal number of clients using their services should not exceed 40. The main stated objectives of cooperatives are the provision of services to their members under the most attractive conditions, uniting members, and earning a profit for the members. These activities of cooperatives revolve around timber harvesting and trade. It is concluded that the process of cooperation of private forest owners in Lithuania is rather slow, although positive development can be observed.     

沾益县天然林保护管理地理信息系统建设构想

论述了沾益县天然林保护管理地理信息系统建设的必要性及重要作用，并对该系统建设的软、硬件环境及系统架构、数据传递及更新等方案作了探讨。     

湖南会同杉木人工林生态系统的碳素含量

对杉木人工林生态系统的碳素含量进行了定位观测.结果表明:不同林龄杉木枝、叶中碳素含量的季节变化规律均表现为冬季＞秋季＞夏季＞春季:杉木叶的平均碳素含量为50.44%,枝的平均碳素含量为44.79%;不同层次杉木叶碳素含量的平均值依序为上层叶＞中层叶＞下层叶,不同层次杉木枝碳素含量的平均值依次为中层枝＞上层枝＞下层枝;10年生杉木各组分碳素含量的变化范围为45.29%～49.72%,11年生的为45.80%～50.22%,14年生的为45.80%～50.93%,变异系数范围为1.68%～8.44%;不同组分的碳素含量按大小可大致排列为树叶＞树皮＞树根＞树干＞树枝＞球果;同一林分中各层次植物的碳素含量按高低排列为乔木层＞灌木层＞草本层;10年生和14年生杉木林土壤各层的碳素含量随土壤深度的增加而逐渐下降.     

社区林业及其在四川的实践

本文探讨了社区林业的产生和发展过程，介绍了国内外社区林业发展的现状和经验，分析了四川的社区林业发展和取得较好效果的原因，指出了四川社区林业未来发展的目标：一是做好社区发展服务和为生态建设服务的工作；二是处理好社区林业发展与国家生态工程建设的关系；三是加大主区林业传播推广力度。     

南方森林经理与可持续发展的思考

从森林可持续发展的概念着手，论述了森林经理与可持续发展的关系及在新形势下森林经理理论定位，并提出了南方森林经营的基本思路。     

加拿大美国林业考察报告

本文介绍了加拿大、美国的林业发展、森林培育、森林经营等状况,并对吉林省林业的建设与发展提出了建议。     

Strategic Trend of Chinese Urban Forestry Development

1 STRATEGY BACKGROUND1.1 Quickening of Urbanization ProcessSince the reform and opening-up in China in 1978,economic community developed rapidly. By the endof 2003, GDP has exceeded $1 000 billion. With therapid development of Chinese economy, residentialmode focusing on rural population is now changing,urbanization process is quickening, traditional cityscale is expanding into metropolis (Tianjin, Xi’an,Chengdu, Chongqing, etc.) or super cities (Beijing,Shanghai, Guangzhou, etc.…     

山西省太行山林业生态工程混交林建设探讨

建设稳定的林分是历代务林人所追求之目标,该文根据太行山区植被演替现存的稳定群落结构及近年来混交林建设的实践经验,提出了在太行山林业生态工程建设中混交林的营造模式及途径。