林木种子的发芽技术

依据林木种子的生理、形态特征、解剖结构 ,在通常采用的 6种发芽方法中 ,选择适合于种子特征 (形态、生理 )的发芽方法 ,经 10 0个树种、 30 0 0多个种批的发芽验证 ,总结了 4类种子的发芽要点、技术条件 ,给出了 10 0个树种发芽率的最高值 ,为绿化造林、苗木培育的种子发芽提供参考依据     

菜阳河自然保护区3种森林类型的土壤特性

对设于菜阳河自然保护区 3种森林类型的 8块监测样地的土壤剖面调查结果得出 :3种森林土壤有较明显的差异。季节雨林土壤为粗骨性赤红壤 ,水热条件好 ,有机质等养分含量丰富 ,阳离子交换量较高。山地雨林土壤为紫色赤红壤 ,总孔隙度达 5 0 % ,通透性尚好 ,土壤氮磷钾全量较其他两类土壤低 ,有机质含量及有效氮磷钾含量与季风常绿阔叶林接近 ,交换性能较好。季风常绿阔叶林土壤主要为黄色赤红壤 ,总孔隙度达 5 6 % ,非毛管孔隙度 11 5 1% ,土壤通透性及保肥能力较好。     

浅析当前森林资源管护的现状及对策

分析了青田县万山片在森林资源管护上存在的林木凭证限额采伐制度实施难度大、木材流动秩序混乱、非法加工普遍、森林火灾的发生趋势上升、重砍轻造采伐迹地递增、林政管理队伍力量簿弱的现状，进一步揭示了所形成的原因，最后提出了继续深入开展学习贯彻执行宣传林业政策法律法规、增强基层政府领导的林业法制观念、抓好森林资源管理、加强林政资源队伍建设等措施。     

以人为本,突出自然"野趣"--广州市帽峰山森林公园规划构想

广州市近郊帽峰森林公园的基本功能定位为生态、科研、游憩和服务。据此提出了突出自然野趣，以人为本，促进人与自然的融合、沟通为内容的规划构想。     

抚育间伐对森林生长的影响及其模型研究

抚育间伐对森林生长的影响体现在很多方面,包括对林分生产力及其林分因子、林下植被及灌木、林下土壤和天然更新影响等方面。对国内外学者在这些方面的研究进行了综述,简单介绍了抚育间伐对森林生长影响的模型研究进展情况。指出了抚育间伐对森林生长影响研究方面存在的问题及今后的发展趋势。     

新世纪的城市林业方向——生态风景林兼论其在深圳市的示范意义

作为现代城市的城市林业新方向 ,生态风景林应具有改善城市生态环境和美化城市两种功能以提高城市的环境质量和居民的生活质量 ,本文为深圳市的生态风景林建设 ,提出了可供参考的原则     

Traditional fallows in Latin America

Traditional fallow systems of Latin America have not been extensively studied from either a socioeconomic or biophysical viewpoint. Only in the past decade have some of these systems — modified shifting cultivation in the Amazon, the bracatinga (Mimosa scabrella) fallow of southeastern Brazil, the babassu (Attalea spp.) system of the Amazon margins, and short bush fallows mostly for Phaseolus bean (the so-called frijol tapado) — received any attention. Over the past century, traditional cultivators have adopted several legumes such as Mucuna spp., Lathyrus nigrivalis, Canavalia spp., and Senna guatemalensis as green manures or managed fallows in food crop production systems, which have recently been the object of studies by social and biological scientists. Longer, monospecific fallows involving woody legumes have been studied to varying degrees. The legumes include Senna guatemalensis, Mimosa tenuiflora, and Gliricidia sepium. Systems in which crop production is alternated with animal grazing of secondary vegetation include the caatinga of Northeast Brazil, the espinales of Chile, the matorrales of northern Mexico, and the chaco of Argentina, Paraguay, and Bolivia. A classification is proposed depending on the nature of the species (woody or nonwoody) and their composition (mono- or multispecies) and land management (burned or not). Much work is still needed in more complete characterization, determination of economic importance and potential, understanding the relationships among components, studies of nutrient cycling, and verification of the effects of shorter fallow periods of these systems.This revised version was published online in November 2005 with corrections to the Cover Date.     

What is new about new forest owners? A typology of private forest ownership in Austria

With structural changes in agriculture, new types of forest owners have become increasingly important. This article develops an empirically-based typology of forest owners in Austria. Based on a representative survey and by means of cluster analysis, seven types of forest owners are identified. These types form a sequence, ranging from forest owners with a strong agricultural background to forest owners with no agricultural background at all. The latter exhibit markedly different behaviour in various respects, e.g. in their interest in forest-related information. The increasing number of ‘new’ forest owners raises important questions for forest policy, especially how policy instruments can reach these owners and how extension services can address them.     

湖南省森林经营现状与对策

据2002年湖南省森林资源统计年报，全省林业用地面积18343.2万亩，森林覆盖率53.13％，活立木蓄积量31352.34万m^2。文章对湖南省森林资源及现有林分结构和质量进行了分析与评价，总结了经验，对存在的问题进行了分析，并提出了加强森林经营工作的对策。