【作者】 刘立新；

【导师】 胡海清； 吴晓春； 国庆喜；

【作者基本信息】 东北林业大学 ， 生态学， 2003， 硕士

【摘要】 本文以迎春林业局1:25000林相图、数字化1:50000地形图和1999年森林小班资料为基础，对森林景观进行了二级分类，在地理信息系统Arc view等软件及景观指数统计学软件FRAGSTATS等的支持下，应用景观生态学原理和方法，计算了斑块大小、形状指数、多样性指数、分维数、优势度、破碎度等，分析迎春林业局森林景观格局的现状。然后，结合迎春林业局地处三江平原，农林混杂情况严重的现状，对其生态脆弱性和重要性情况进行了分析。最后，提出比较合理的生态保护对策。结果表明：(1)迎春林业局以森林经营为主体，农林交错，农业生产在本地区也占有相当大的比重，林地、耕地和湿地人为干扰严重，斑块破碎化程度高；(2)在森林类型中，阔叶林占主导地位，但分布比较分散，而针叶林则呈聚集分布；天然林斑块形状复杂，人工林形状规则；(3)河流的中上游、湿地、裸地、陡坡和农林交错带为生态脆弱性区域，应该严加保护。 本文所探讨的是迎春林业局景观现状及生态对策问题，为迎春林业局乃至完达山林区森林可持续经营规划及生物多样性保护方案的制定提供了依据。更多还原

【Abstract】 Based on forest type map(1: 25000), digitized terrain map (1:50000) and general investigated material of 1999, two classes landscape types were divided in YingChun Bureau of Forestry. Supported by the GIS software Arc view and statistics software FRAGSTATS of landscape index, the landscape spatial pattern of the region was analyzed and assessed using landscape ecological principles, such as mass size, shape index, diversity index, fractal dimension, dominance, fragmentation. Then, combining with the status in quo of locating in SanJiang plain and intermix with fanning and forest, The author analysised its eco-frangibility and eco-essentiality. At last, a reasonable ecology programming is advanced. The result are: (1) The main body in YingChun is forest management, woodland and infield interleaving together. Agriculture production possesses a sizable proportion. Woodland, infield and everglade are disturbed badly. The degree of patch fragmentation is very high. (2) Broad-leaves forest is in the dominant, but its distributing is very disperse, pin-leaves forest patches take on a collective state; the shape of nature forest patch is very complex, the shape of plantation patch is very codex; (3) Superior and middle travel of river, everglade, naked-field, upsweep and the interleaving strap of woodland and infield are ecological frangibility area and need to be protected strictly.This study paved a way for the planning of the sustainable management and the protection of the bio-diversity.更多还原