【作者】 张海军；

【导师】 袁秀英； 张星耀；

【作者基本信息】 内蒙古农业大学 ， 森林保护学， 2007， 硕士

【摘要】 定量的分析松材线虫和松褐天牛在我国的潜在适生区,依据松材线虫和松褐天牛的生物学特性及其生长发育与环境的关系,选取年均温(T)、最热月均温(N)、海拔(H)、25℃以上的天数(D)、年降水量(W)和日日照时数(h)6项气候生态因子作为松材线虫适生评判因子,选取年均温(TA)、最热月均温(TM)、海拔(H1)、年有效积温(K)、年降水量(W)和日日照时数(h1)6项气候生态因子作为松褐天牛适生评判因子,应用模糊综合评判的数学方法分别定义6因子的隶属函数,以国家气象局气象资料室获取近30年全国739个台站的原始气象数据为依据,利用excel处理原始数据,把各个因子的原始气象数据根据各自定义隶属函数进行标准化处理得出隶属度,建立模糊综合评判矩阵,得出各个台站适生值:利用ArcGIS8.0制作专题图,并划分出μ>0.85为最适宜;μ>0.70为适宜;μ>0.55为次适宜;μ>0.40为不适宜;μ<0.40为极不适宜环境类型。结合云南省松材线虫病寄主植物的分布,进一步得到松材线虫病在云南省潜在分布区。更多还原

【Abstract】 Potential suitable areas of the pine wood nematodes, Bursaphelenchus xylophilus and Monochamus alternatus Hope were described with quantification, according to their biological characteristics and relationship of their development and environment, six key factors were chosen namely, year average temperature、hottest month average temperature、altitude、days above 25℃、hours of sunlight and precipitation were regarged as biological factors of Bursaphelenchus xylophilus. Year average temperature、hottest month average temperature、altitude、effective accumulated temperature、hours of sunlight and precipitation were regarged as biological factors of Monochamus alternatus Hope. Their subordination functions were defined with math method of synthetic assessment on fuzzy mathematics. Climatic data of 739 sites obtained from state weather administration were processed by excel in order to get its subordination value, and comprehensive suitable value of every site was calculated by creation of fuzzy judgment matrix. Finally ArcGIS8.0 software was adopted for data collection, processing and analysis to make thematic map, five environmental types were graded according to comprehensive suitable value.Combining the host of Bursaphelenchus xylophilus in Yunnan province, Potential suitable areas of the pine wood nematodes in Yunnan province were obtained.更多还原