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北京市八达岭西沟水源涵养林结构与功能量化研究

The Quantitative Research of Xigou Water Conservation Forest’s Structure and Function in Badaling Forest of Beijing

【作者】 钟剑飞

【导师】 刘东兰; 郑小贤;

【作者基本信息】 北京林业大学 , 地图学与地理信息系统, 2010, 硕士

【摘要】 森林结构的不同,其森林功能也不同。研究森林结构与功能的关系对深入了解各种森林功能,以及森林的生长发育和森林经营规律具有重要意义,并可为制订科学的经营措施,营造稳定健康的森林,最大限度地发挥森林功能提供理论依据。本研究以八达岭林场西沟的水源涵养林为研究对象,利用“3S”技术等手段,结合地面固定样地调查数据和提取的RS、GIS信息,选取林分起源、树种组成、林层、林分年龄、郁闭度(覆盖度)、枯枝落叶层厚度、土壤厚度、非毛管孔隙度等8项指标作为水源涵养林结构与其涵养水源功能关系的量化指标,运用分级标准法,以定量为主、定性与定量相结合的方法,得出水源涵养林结构与功能的量化结果,绘制八达岭林场西沟水源涵养林结构与功能等级分布图,分析研究区内结构与功能状况。研究结果表明,八达岭林场西沟水源涵养林涵养水源功能评价为好的小班有9个;为中的小班有105个;为差的小班有7个。研究区小班的特点是各等级交错分布,从整体上看,水源涵养功能为好的占8.28%的面积,为中等的占了近83.97%的面积,为差的仅占了7.76%的面积,这说明研究区内森林的水源涵养功能较为合理。

【Abstract】 Forest Structure is different, its Function is different. It’s an important significance to study on the relationship of Forest Structure and Function, and thorough understanding the Discipline of the Forest Function, Forest Growth and Forest Management. It can provide the theory basis for formulating scientific management measures, building Stable and Healthy Forest, maximizing the Forest Function.This research takes Badaling Xigou Water Conservation Forest as the research object, uses the "3S" technology, combines with the survey data of permanent plot and the selective information of RS and GIS, selects 8 indexes:Stand Origin, Tree Species Composition, Forest Storey, Forest Age, Canopy Density (Coverage), Litter Thickness and Soil Thickness, as the quantitative index to study on the relationship of the Water Conservation Forest Structure and Function, uses the Classification standard method, and the primarily quantitative, the qualitative compile with quantitative method, then obtains the quantitative results of the Water Conservation Forest Structure and Function, draws the level distribution of Badaling Xigou Water Conservation Forest Structure and Function. In the end, the Author analyses the research area’s condition of the Forest Structure and Function.The research results show that the water conservation function of Badaling forest which is in the first rank have 9 sub-compartments, in the second rank have 105 sub-compartments, and in the third rank have 7 sub-compartments. In this research area, the characteristic of the water conservation function is the distribution contains each rank. Overall, the area of the water conservation function which is in the first and second rank is nearly 10.26% of the area, in the third rank is nearly 81.99% of the area, and in the forth rank is only 7.76% of the area. In conclusion, the Forest Water Conservation Function of the research area is appropriate.

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