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101.
论我国生态林业建设方略 总被引:14,自引:0,他引:14
目前我国的生态林业建设面临着许多问题。我们必须以全新的理念进行体制创新、制度创新、所有制结构创新,以实现林业生产关系的变革,最大限度地解放林业生产力,以超常规的方式推进中国林业跨越式发展。文章借鉴国内外林业经营理论的研究成果,对于我国生态林业的建设,提出并阐述了“地类规划、分类经营,区别对待、统筹协调,完善政策、产业化发展”的方略。 相似文献
102.
LIZhiyong* Project Secretariat of ChineseSustainable Development Forestry Strategic Research Scientificand Technological Information Institute of Forestry Chinese Academy of Forestry Beijing P.R.China 《中国林业科技(英文版)》2004,3(3):19-23
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.… 相似文献
103.
德钦县地处“天保”工程实施的重点区域 ,工程的实施 ,可从根本上遏制该县生态环境日益恶化的趋势 ,改善区域内的生态环境 ,对经济和社会的可持续发展产生重要作用。为保证“天保”工程的顺利实施 ,提出加强技术培训和人才培养 ;实施林下资源和旅游资源开发 ;协调林牧矛盾 ;加大公益林建设力度等 8条实施对策 相似文献
104.
湖南林业科技创新的思考 总被引:1,自引:0,他引:1
林业科技创新应根据林业发展的特殊情况和创新要求,建立以大学、科研机构为主体的知识创新体系,以企业为主体的技术创新体系,以政府部门为主体的创新推动体系和以中介机构、学会、协会等组织为主体的中介服务体系。作者从林业创新战略、机遇和挑战、深化科技体制改革、加快林业科技创新体系建设等方面论述了自己的观点。 相似文献
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TIAN Xiaorui SHU Lifu WANG MingyuResearch Institute of Forest Ecology Environment Protection Chinese Academy of ForestryBeijing P.R. China 《中国林业科技(英文版)》2003,(2)
The paper described the natural conditions and forest types in Northwestern Region of China. Most forests in the region are distributed in subalpine areas. It is important to protect the existent forests in the region for maintaining ecological balance. According to the statistics results of 1991~2000, the paper analyzes the forest fires distribution and fire severity. Annually the numbers of forest fires range from 52 to 240. The incidence rate of forest fires in Northwestern Region is under 0.33 per ten thousand ha. There are 0.67-64.4 ha burned area per ten thousand ha forest. The main reasons for forest fires lie in the dry weather conditions, many firebrands, and high fuel loading. The strategies of fire management in the region are to stress the fire education in forest regions, strength the firebrands' management, emphasize the fuel management, and improve the fire monitoring and fire control ability. 相似文献
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Satoshi Saito 《Journal of Forest Research》2002,7(3):137-143
The effects of a typhoon on forest dynamics and the response of major tree species were studied in a warm-temperate evergreen
broad-leaved forest in southwestern Japan. The strongest typhoon on record (T9313) passed through this region in 1993. Return
periods of typhoons over 30 ms−1 in instantaneous wind velocity and T9313 were estimated to be 2.2 and 104.5 years, respectively. Approximately 10% of all
stems suffered some damage from T9313 and annual stem mortality rose from 1.3 to 2.7%. The estimated period that the number
of stems would fall below 10% of the initial was four years shorter with T9313-class typhoons than without them. Thus, the
disturbance by T9313 was not catastrophic at the site although T9313 was an episodic typhoon. The short-term responses of
major tree species to T9313 were classified into four types: 1) blunt-response type with little decrease and recruitment of
stems in the DBH ≥ 5 cm class (Distylium racemosum), 2) retreat type with larger decrease than recruitment (e.g. Quercus acuta), 3) sharp-response type with a large decrease and much recruitment (e.g. Cinnamomum japonicum), and 4) advance type with less decrease than recruitment (Eurya japonica). Among the four regeneration types classified by previous studies (climax, light-demanding, subcanopy, and few-sapling),
the climax and few-sapling types each showed a specific short-term response, the blunt-response and retreat types, respectively,
that explains one aspect of the regeneration strategies of each type. On the other hand, the light-demanding or sub-canopy
type showed multiple short-term responses, indicating that each regeneration type contains species with various regeneration
strategies.
In this paper, I analyzed data from the database that was compiled by the Aya Research Team. 相似文献