安徽敬亭山国家森林公园开发利用探讨

敬亭山国家森林公园具有森林景观丰富多彩 ;历史文化底蕴丰厚 ;双塔辉映、古朴典雅等旅游资源特色 ,是集森林公园、风景名胜区和城市公园于一身的综合型公园 ,具有极强的竞争力和美好的发展前景。提出将公园划分为游览区、游乐区及管理服务区等功能分区的开发建设构想 ,并提出开展特色旅游等开发利用建议。     

长江上游低山丘陵区小流域森林植被变化对径流影响分析

森林植被的变化可以调节森林水文过程。本文以广元市碗厂沟的5个小流域为研究对象,根据实测水位资料,分析了在植被恢复过程中流域径流的变化情况。结果表明:随着森林植被的不断恢复,(1)流域降水转化为径流的数量(即径流系数)降低;(2)在相同的雨量级与相似的雨强情况洪峰得到削弱,洪峰时间延长;(3)在相似的降雨历时的条件下洪水过程线历时增长。     

森林重泡沫施用技术的研究

本文描述了在林缘草地施用森林重泡沫灭火剂技术，同时介绍了森林重泡沫灭火剂的质量问题，该剂的特点是稳定性好，抗风力强，并一具有良好的附着力，渗透性和抗烧性。     

浅谈森林病虫害防治

介绍了森林病虫害的危害后果对社会经济和生态环境带来的严重影响。为进一步加强森林病虫害的防治,结合实际工作,利用森防科技改进防治手段,做到"以预防为主,综合治理"。     

四川盆地中山地带日本落叶松林分生产力研究

本文根据日本落叶松人工林林分蓄积量、生产力与林龄、立地条件、林分密度等因子的关系,选取21个样地,采用标准地调查、树干解析方法对其人工林的蓄积量、生产力以及与立地条件之间的关系进行了较为系统的研究。研究表明:日本落叶松人工林在四川盆地中山地带生长良好,林分生产力与林分所处立地条件、林分密度、经营管理等密切相关。     

Bryophytes as potential indicators of forest integrity

Forest integrity has been proposed as one conservation endpoint that integrates desirable characteristics such as natural biodiversity, stand structure and continuity. Although its defining criteria are still under discussion, any surrogates must effectively represent or predict their status, and be easier to measure than the criteria themselves. Bryophytes have been proposed as such surrogates, because they are important components of forest integrity, and considerable research indicates that some groups are sensitive to the changes associated with specific forest management regimes. The objectives of this paper are (1) to review the issues in determining indicators of forest integrity, including desirable qualities in such indicators, (2) to review the state of knowledge concerning bryophytes as components of forest integrity (i.e. their responses to forest management practices), and (3) to assess bryophytes as potential indicators of forest integrity, in terms of both qualities desirable in indicators and our understanding of bryophyte response patterns. Although bryophytes possess some characteristics that suggest potential indicator value, many challenges prevent their reliable application. I highlight key areas in which research is required to identify operational bryophyte indicators of forest integrity. Along with a standardized protocol to select and calibrate such indicators, we urgently require strategic research to compile data on undisturbed reference forests on which to base selection of endpoints; species-specific ecological tolerances, with consideration of complex interactions; mechanisms of response to disturbance, with consideration of temporal aspects; population viability thresholds; and recruitment effects on community assembly. Whether we succeed in finding bryophyte indicators of forest integrity, this research would also provide the data to monitor and interpret the integrity of the bryophyte community.     

社区林业与天然林保护社区的可持续发展

本文探讨了我国天保社区的基本特征，阐述了社区林业的特点，分析了天保工程实施中存在的问题，提出了采用社区林业方法实施天保工程的几点建议，指出了社区林业是天保社区可持续发展的有效途径。     

Do “stakeholders” represent citizen interests? An empirical inquiry into assessments of policy aims in the National Forest Programme for Germany

Participatory National Forest Programmes (NFPs) intend to democratise forest sector policy, but they may suffer from a fundamental democratic legitimisation deficit since the stakeholders involved are neither democratically authorised nor accountable to the population. In order to scrutinise the empirical relevance of this problem in the case of the German NFP, it is analysed how the German population on the one hand and the NFP participants on the other hand assess central forest policy aims of the NFP, and how far both assessments coincide. Two surveys based on identical questionnaires are used as the data base. The respondents assessed the importance of the respective aims as well as at their implementation. Results show that the population considers the majority of the NFP aims to be generally relevant, but assesses the majority of the aims significantly differently from the stakeholders. The formal legitimisation deficit of the German NFP therefore also matters in terms of content. Discussing the NFP among the elected representatives and in the public seems indispensable.Moreover, the differences in the assessment of some policy aims are significantly dependent on how people judge the image of forest enterprises between the opposing poles of profit orientation and nature protection. Public acceptance of those aims could be furthered more appropriately by adjusting the partly incorrect image of forestry rather than by providing more information about the particular aims and their background.     

帽儿山林场4类天然次生林碳储量研究

运用森林生态学典型样地法设立标准地并获取野外数据,采用重铬酸钾-硫酸氧化湿烧法测定植物、土壤中的碳。通过对帽儿山林场4类天然次生林碳素密度及储量的比较研究,结果表明:1)天然次生林主要树种不同器官中碳素密度变化范围在0.331 6~0.501 4 gc/g之间,枯立木、林下植被、枯枝落叶和半分解的有机残体(A00层)各层的碳素密度差异不大,土壤各层的碳素密度的排列顺序为腐殖质(A0层)>表土层(A层)>亚表土层(B层)。2)硬阔叶林生态系统总的碳储量为261.31 tc/hm2,山杨林生态系统总的碳储量为195.20 tc/hm2,蒙古栎林生态系统总的碳储量为196.41 tc/hm2,白桦林生态系统总的碳储量为143.18tc/hm2。3)天然次生林年平均净碳固定量为4.647tc/hm2.a。     

2006年特大干旱条件下森林植被对土壤水分的影响

2006年四川发生了百年一遇的特大干旱。于旱期结束末,调查了蓬安县境内两座丘陵-石马寨(栎柏混交林)和碉堡梁(人工柏木林)上、中、下坡林地和林带中耕地及坡脚农田的土壤含水量;调查了四川盆地丘陵区内5个县9个乡镇17个小流域有无农田防护林条件下,稻田开裂起始时间和裂缝宽;以及按照自然地理条件相近、森林覆盖率有较大差异的原则,调查了宣汉县和达县5对乡镇(森林覆盖率高的乡镇森林覆盖率为28.26%～46.85%,平均为37.24%,相对应的低的乡镇森林覆盖率为12.75%～26.74%,平均为18.64%)内不同台地的土壤含水量。结果表明,混交林林地的保水能力强于纯林林地,林地的保水能力强于耕地,农田防护林对水稻具有庇护作用,森林覆盖率高的地区土壤保水能力强于森林覆盖率低的地区土壤。在干旱期末坡上、中、下部位的0～40 cm土层中,栎柏混交林林地的含水量比柏木纯林林地高出3%～7%,林地的土壤含水量比林带中的耕地高出0.7%～2.1%;栎柏混交林带中的耕地含水量比柏木纯林带中的耕地高出3%～6%,石马寨的坡脚农田含水量比碉堡梁的高出5%;在干旱期末不同台地0～40 cm土层中,与森林覆盖率低的地区相比,森林覆盖率高的地区水稻田含水量高3%～7%,二台土高4%～8%,三台土高2%～8%;有农田防护林的农田土壤开裂时间比无农田防护林的推迟5 d～20 d,裂口宽平均窄0.1 cm～3.1 cm。