南京林业大学学报(自然科学版) ›› 2013, Vol. 37 ›› Issue (06): 41-46.doi: 10.3969/j.issn.1000-2006.2013.06.009

• 研究论文 • 上一篇    下一篇

香梨优斑螟在库尔勒香梨园中的空间分布

侯世星1,刘 兵2,温俊宝1,2*,庞 华3,孙世国3   

  1. 1.北京林业大学林学院,北京 100083;
    2.新疆农业大学林学与园艺学院,新疆 乌鲁木齐 830000;
    3.新疆阿克苏地区林业科学研究所,新疆 阿克苏 843000
  • 出版日期:2013-12-18 发布日期:2013-12-18
  • 基金资助:
    收稿日期:2012-10-10 修回日期:2013-01-17
    基金项目:国家自然科学基金项目(31060115); 国际科技合作项目(2009DFA92900); 教育部新世纪优秀人才支持计划项目(NCET-10-0224)
    第一作者:侯世星,博士生。*通信作者:温俊宝,教授,博士。 E-mail:wenjb@bjfu.edu.cn。
    引文格式:侯世星,刘兵,温俊宝,等. 香梨优斑螟在库尔勒香梨园中的空间分布[J]. 南京林业大学学报:自然科学版,2013,37(6):41-46.

Distribution pattern of Euzophera pyriella Yang in the garden of Pyrus sinkiangensis

HOU Shixing1, LIU Bing2, WEN Junbao1,2*, PANG Hua3, SUN Shiguo3   

  1. 1. College of Forestry, Beijing Forestry University, Beijing 100083, China;
    2. College of Forestry and Horticulture, Xinjiang Agriculture University, Urumqi 830000, China;
    3. Forestry Research Institute of Xinjiang Aksu Prefecture, Aksu 843000,
  • Online:2013-12-18 Published:2013-12-18

摘要: 为调查香梨优斑螟(Euzophera pyriella Yang)在库尔勒香梨树上的危害特点,对所选样地内全部香梨树进行刮皮查虫,利用聚集度指数测定和地统计学方法对香梨优斑螟空间分布情况进行分析。结果表明:在垂直方向上,香梨优斑螟主要集中在距离地面50~100 cm范围内; 在水平方向上,香梨优斑螟集中分布于距离主干30~90 cm的侧枝上。不同聚集度指标表明香梨优斑螟在库尔勒香梨园中呈聚集型分布,且香梨优斑螟最适抽样公式为m*= 1.493 4 m+ 0.156 6(R2=0.969 1); 全方向的变异函数曲线图分析得知,所调查4块样地内香梨优斑螟种群的局部空间连续性强度分别为93%、96.3%、67.6% 和90.2%,空间依赖距离分别为5.64、6.38、7.79 和5.12 m,香梨优斑螟在香梨园中分布符合球形模型。

Abstract: In order to analyze the Euzophera pyriella Yang hazards to Pyrus sinkiangensis Yü,the distribution pattern of E. pyriella Yang in the garden of P. sinkiangensis Yü by using statistical methods of aggregation degree indication and GIS. Results showed that in vertical direction,the main distribution of E. pyriella Yang was above the ground 50-100 cm in horizontal direction, the E. pyriella Yang distributed mainly in the lateral branch away 30-90 cm from the main trunk. The spatial distribution pattern of the E. pyriella Yang was gathering type from aggregation degree indication analysis. According to the Iwao’s method, the most suitable sampledate formula was m*=1.493 4m+0.156 6(R2=0.969 1)under different population density of E. pyriella Yang. The isotropic variogram analysis indicated that the intensity of spatial continuity was 93%, 96.3%, 67.6%, and 90.2%, while the distance of spatial dependence of Euzophera pyriella Yang in the four samples was 5.64, 6.38, 7.79 and 5.12 m. The contour map was generated by using Kriging techniques. The theoretical model of spatial distribution pattern was spherical. The theoretical model had changed because of the anthropogenic factors.

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