四川珍贵树种资源发展潜力及战略

珍贵树种是经济社会发展特需的战略资源,发展珍贵树种资源具有十分重要的意义。文章介绍了四川珍贵树种资源发展现状,分析了珍贵树种资源发展潜力,提出了珍贵树种资源发展原则和发展战略。     

试论我国主题公园存在的问题及发展对策

随着社会的进步,主题公园在中国大地上蓬勃发展,在取得了一定成就的同时也暴露出一些问题。作者介绍了主题公园的产生及主题公园的发展历程,分析了主题公园存在的主要问题,并提出了解决问题的对策,为主题公园的可持续发展提供了新的思路。     

积极发展黑龙江省森工林区“北药”产业

黑龙江省森工林区幅员辽阔,动植物资源丰富,其中,"北药"资源独具特色;近年来,黑龙江省政府将"北药"开发作为全省十大产业之一,寄予厚望。那么,要做大做强"北药"产业,必须加强野生动植物资源的保护和利用,加大科技和资金投入力度,对产品实施规模化精深加工,力求使"北药"开发产业为黑龙江省森工林区乃至全省的经济社会发展注入新的活力。     

矿山林业可持续发展问题研究

结合鸡西矿业集团林业发展的实际情况,通过对其林业可持续发展现状的分析,归纳和总结了其中存在的问题。从而从理顺矿区林业管理体制、合理调减木材产量、林业生产项目调整与优化等方面,有针对性地提出了比较合理又具有可操作性的发展对策和建议。     

广州塑石假山技艺发展研究

广州是国内较早使用工程手法,运用人工材料塑造假山的地区。广州塑石假山从早期以塑山法为雏形,发展至以水泥砂浆为塑面,砖石钢筋为骨架的塑石假山,以及GRC组装型假山。这类新型塑石假山与传统天然山石假山相比,具有材料易获取、可塑性强、承重轻、造价较低、建造效率高等特点。结合案例介绍了3种塑石假山的工艺特点：塑山法以砂浆和灰浆弥补形之不足,水泥砂浆塑面假山结构灵活且受环境约束小,GRC组装型假山具有很强的可塑性,能满足多种特殊形态的表现需求。     

新建县沙生植被的保护与开发利用

以农业生产为支柱产业的新建县地处鄱阳湖流域,区域内沙生植被较脆弱。随着经济与人口的快速增长及农、林、旅游业的大发展,如何保护县域内沙生植被、更好的开发和利用这种资源十分重要。在分析新建县沙生植被现状及影响其生长的主要因素的基础上,就该地区内沙生植被的保护和开发利用提出建议。     

九江市基层林业工作站的现状与对策

对九江市基层林业工作站的基本情况进行了调查了解,指出了存在的问题以及解决问题的对策。     

丽水市小径竹资源调查与分析

通过对丽水市小径竹林种类、面积、分布、立地条件、林分状况、经营现状的全面调查,掌握了资源状况,分析了资源特点和开发潜力,提出了保护与利用开发的建议.     

Tree planting in Tigray, Ethiopia: the importance of human disease and water microdams

We examine the decision to plant trees and level of tree planting for two sites, public microdam areas and household agricultural land, and two species groups in Tigray, Ethiopia. Both sites are not perfect substitutes, as they vary with respect to distance from the household and tenure security. The role of permanent pooled water irrigation microdams to tree planting is important but unknown, because water borne diseases, which may influence household income and productivity, are thought to be enhanced by the dams. We find both disease and microdams to be important predictors to tree planting. Disease seems more important in determining whether households plant at all, and less important in the level of planting for those that do plant. For example, disease increases the probability of planting both eucalyptus and other species groups on household-own land, but households suffering from malaria plant higher-cost eucalyptus trees with lower probability at both sites, while planting of other lower-cost species increases at dam sites where other villagers can monitor the trees. We also establish a connection between planting and agricultural residues, finding a strong substitution effect on own-land. Microdam access and age are also important. Households living nearer to dam sites will plant both species groups there with higher probabilities, but the decision to plant on agricultural own-land is not affected. For older dams with more developed irrigation, households are more likely to grow crops rather than plant trees on their own land, but they plant more trees at the dam sites. This revised version was published online in June 2006 with corrections to the Cover Date.     

西双版纳竹楼的发展

竹楼——云南少数民族竹文化的体现，具有浓郁的民族特色和不断发展变化的历史。随着经济的发展和人民生活水平的提高，竹楼文化也经历困难的发展阶段。作者基于竹类植物所具有的特性，分析和探讨了新型傣族竹楼建筑的优缺点，期待西双版纳竹楼在当地经济、社会发展中发挥更重要的作用。