杨树林分的胸径特征与溃疡病感病指数的关系
The Impact of Poplar Diameter Characteristics on Disease Index of Canker
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摘要: 在调查北方杨树人工林标准地的基础上,分析欧美杨108和新疆杨的8个胸径特征指标与杨树溃疡病感病指数的相关关系。研究结果表明,欧美杨108和新疆杨人工纯林的胸径特征指标与其溃疡病感病指数间存在一定的相关关系。欧美杨108和新疆杨位置参数与感病指数间存在显著负相关关系;新疆杨尺度参数与感病指数为显著正相关关系;欧美杨108与新疆杨形状参数与感病指数均存在显著负相关关系,形状参数越大,胸径分布越集中,优势林木越多,峰值越高,陡峭,感病指数越小,反之亦然;欧美杨108和新疆杨人工纯林的平均胸径、感病林木平均胸径、未感病林木平均胸径与感病指数相关关系不显著,但平均胸径与感病林木平均胸径、未感病林木平均胸径均为正相关关系;在同一树种内胸径小的林木较胸径大的林木易于感病,欧美杨108和新疆杨的感病面积最小林木的胸径与感病指数均成极显著负相关关系,欧美杨108感病面积最大林木的胸径与感病指数呈显著负相关关系,新疆杨感病面积最大的林木胸径与感病指数的相关关系不显著,可通过间伐小胸径林木尤其是感病小胸径林木控制溃疡病以提高整体林分生长潜力。Abstract: Based on the data of 60 standard sites of poplar plantations diameter which included Populus×euramericana cv.'Guarinento’ and Populus alba var.pyramidalis,8 diameter characteristics indicators were selected which included three weibull distribution parameters of diameter(location parameter(A), scale parameter(B), shape parameter(C)), average DBH(D/em>0), average DBH of poplar which was infected with canker(D1), average DBH of poplar which was uninfected with canker (D/em>2), the diameter of poplar which had the largest lesion canker (D/em>3), and the diameter of the poplar which had the smallest lesion canker (D/em>4). The relationship between 8 diameter characteristics indicators and disease index of canker(DI) was studied, the result showed that A, C, D/em>4 had a negative correlation with DI for Populus×euramericana cv. 'Guarinento’ and Populus alba var. pyramidalis;D/em>3 had a negative correlation with DI for Populus×euramericana cv. 'Guarinento’ only;B had a positive correlation with DI for Populus alba var. pyramidalis only.D/em>0,D/em>1, and D/em>2 had no significant correlation with DI. On the same poplar clone,the tree that had big DBH was more susceptible to canker disease than that had smaller DBH, and thinning of small diameter trees, which was infected with canker could control canker diseases.
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[1] 刘会香,贾秀贞,吕 全,等.中国杨树溃疡病的发生与防治[J].世界林业研究,2005,18(4):62-65 [2] 景 耀,王建军.杨树溃疡病潜伏侵染的研究[J].林业科学,1991,21(2):173-178 [3] 杨 旺,沈瑞祥.杨树溃疡病可持续控制技术的研究[J].北京林业大学学报,1999,21(4):13-17 [4] 骆有庆,沈瑞祥.试论森林有害生物可持续控制策略[J].北京林业大学学报,1998,20(1):96-98 [5] 梁 军,张星耀.森林有害生物生态控制[J].林业科学,2005,41(4):168-176 [6] 梁 军,张星耀.森林有害生物的生态控制技术与措施[J].中国森林病虫,2004,23(6):1-8 [7] 刘君然,赵东方.落叶松人工林威布尔分布参数与林分因子模型的研究[J].林业科学,1997,33(5):412-417 [8] 孟宪宇,邱水文.长白落叶松直径分布收获模型的研究[J].北京林业大学学报,1991,13(4):9-16 [9] 潘存德.林木直径分布预测动态模型的研究[J].林业科学,1990,26(5):470-474 [10] Nord-Larsen T,Cao Q V.A diameter distribution model for even-aged beech in Denmark[J].Forest Ecology and Management,2006,231(1 - 3):218-225 [11] 中华人民共和国林业部科技司.林业标准汇编(三)[M].北京:中国林业出版社,1991:87 [12] 赵仕光,景 耀.杨树对溃疡病的抗性研究Ⅰ.树龄及形态特征与抗病性[J].西北林学院学报,1997,12(3):35-40 [13] 黄维正.河南杨树感染杨树溃疡病调查初报[J].林业科技开发,2006,20(2):77-78 [14] 景 耀,张星耀,侯文智.箭杆杨溃疡病经济阈值的研究[J].森林病虫通讯,1990(3):1-3 [15] 金 勇,达 娃.西藏杨树溃疡病空间格局及抽样[J].西藏科技,1995(2):19-15 [16] 张星耀,赵仕光,刘贤德.杨树烂皮病空间格局及抽样技术的研究[J].西北林学院学报,1993,8(1):21-26 [17] Corzo O,Bracho N,Pereira A,et al.Weibull distribution for modeling air drying of coroba slices[J].Food Science and Technology,2008,41(10):2023-2028 [18] Utsugi H, Araki M, Kawasaki T, et al.Vertical distributions of leaf area and inclination angle,and their relationship in a 46-year-old Chamaecyparis obtusa stand[J].Forest Ecology and Management,2006,225(1 - 3) :104-112 [19] Chen W J. Tree size distribution functions of four boreal forest types for biomass mapping[J].For Sci,2004,50(4):436-449 [20] Liuc M,Zhang L J,Davis C J.A finite mixture model for characterizing the diameter distributions of mixed-species forest stands[J].For Sci,2002,48(4):653-661 [21] 张子达,赵丁选.用优化方法求韦布尔参数的最优估计[J].农业工程学报,1996,12(2):76-80 [22] 张 伟,赵善伦,吴志芬.山东赤松种群直径结构及其动态研究[J].西北植物学报,2001,21(4):749-754 [23] 陈东来.直径分布与地径分布的分析与研究[J].河北农大学报,1994,17(1):250-254 [24] 刘君然.株数按径级分布与林分测树因子变化规律的研究[J].内蒙古林学院学报,1997,19(2):38-42 [25] 胡 萍.日本落叶松林分生长预测及收获预估 .兰州:甘肃农业大学,2007 [26] 谢 华,杉木人工林抚育间伐效应研究 .合肥:安徽农业大学,2007 [27] 郭元涛.落叶松人工林林分因子模型的建立[J].西部林业科学,2005,34(1):26-28 -
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