森林生态学实习报告.doc

森林生态学实习报告 1．自然环境特征 30°54′n和和103°35′e。全山有有36座山峰，诸峰环绕状如如城廓，山上树木茂盛，终年年青翠，故名青城。全境周围围120km，保护面积15522hm2．区内气候温和和湿润，属亚热带温湿型气候候，年平均温度15.2℃，，最热月极端温度34.2℃℃，最冷月极端温度一7.11℃；平均相对湿度81％；；年降水量1225.1mmm；无霜期271d(数据由由成都市气象局提供)青城山山地质地貌上以“丹岩沟谷，，赤壁陡崖”为特征，土壤类类型主要为山地黄壤，母岩为为侏罗纪紫色砂岩、泥岩 2.植被概概况 根据青城山样地地调查资料、野外路线踏勘记记录的植物种类及《中国都江江堰市植物名录》中所记载的的青城山植物，初步估计植物物346种，其中蕨类植物551种，隶属于26属l6科科，种子植物295种，隶属属于192属90科。其中裸裸子植物7种6计青城山约有有维管属5科；双子叶植物2252种169属77科；单单子叶植物36种22属8科科。植物区系有明显从亚热带带向温带过渡的。 2个植被型型5个群系．常绿阔叶林类型型基本处于稳定阶段，尽管个个别样地受人为影响，一些阳阳生性的落叶成分侵入林内，，使群落具有明显的次生性质质。但是，目前常绿树种发育育良好，落叶成分缺乏更新幼幼苗。预计经过一段时间群落落会演替为顶极群落；暖性针针叶林中针叶树种杉木生长发发育情况不良。而常绿阔叶树树种在群落中发育良好。据此此可以断定，群落中杉木的地地位将会被常绿阔叶树种替代代，暖性针叶林将演替为常绿绿阔叶林。 3.青城山森林林植被种间联结的特点 4.结论 青城山风景区森森林植被种子植物种类丰富，，珍稀濒危植物和特有植物众众多，种子植物属区系起源古古老，植物区系成分十分复杂杂。温带成分和热带成分在这这里相互交触，充分显示了其其植物区系的过渡特征。 industrialization, industrial characteristics, contribute to ecological environmental protection. One is to actively implement the project support, vigorously implement the Microfinance in the area of hope project assistance projects; two is the key to implement talent support in the initiative for the economic development in the reservoir area of the introduction of talent at the same time, vigorously implement the reservoir youth transfer plans to promote employment, promote the transfer of labor in youth, promote the resettlement work in youth labor employment; three is to vigorously implement ecological support , in the reservoir area to carry out the service for the Three Gorges migrants, building a green reservoir activities, in order to protect the ecological environment of the reservoir area to make a real contribution.Five, continue to consolidate the work of the Communist Youth League FoundationAlways adhere to the party building, strengthen rural grassroots league construction, push the construction of rural youth center, vigorously extending the work of arms, and carry out the rural education to strengthen the sense of Youth League activities, continue to lay a solid fo