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林业资源管理 ›› 2011, Vol. 0 ›› Issue (5): 53-59.

• 科学技术 • 上一篇    下一篇

森林生物量空间知识挖掘方法应用研究——以河南西峡县为例

李明阳1, 张向阳2, 吴文浩3, 刘方1   

  1. 1.南京林业大学 森林资源与环境学院,南京 210037;
    2.河南省林业调查规划院,郑州 450045;
    3.句容市农业委员会,江苏 镇江 212400
  • 收稿日期:2011-07-28 修回日期:2011-10-08 出版日期:2011-10-28 发布日期:2020-12-21
  • 作者简介:李明阳(1967-),男,河南三门峡人,教授,博士,主要研究方向:风景林调查规划、森林资源监测、3S应用研究。Email:lmy196727@ 126.com
  • 基金资助:
    国家自然科学基金“基于GIS的森林资源调查空间平衡抽样理论与方法研究”(30972298)

Application Research of Data Mining of Spatial Knowledge of Forest Biomass——A Case Study in Xixia of Henan Province

LI Mingyang1, ZHANG Xiangyang2, WU Wenhao3, LIU Fang1   

  1. 1. College of Forest Resources and Environment,Nanjing Forestry University,Nanjing 210037,Jiangsu,China;
    2. Henan Provincial Institute of Forest Inventory and Planning,Zhengzhou 450045,Henan,China;
    3. Agriculture Committee of Jurong City,Zhenjiang,212400,Jiangsu,China
  • Received:2011-07-28 Revised:2011-10-08 Online:2011-10-28 Published:2020-12-21

摘要: 以河南省重点林业县西峡为研究对象,以2003年森林资源连续清查空间数据库为主要信息源,在地理信息系统软件ArcGIS 9.3、数据挖掘软件Clemintine 12.0支持下,通过空间热点探测、趋势面分析、地理加权回归、C5.0决策分析来进行西峡县森林生物量空间知识挖掘。研究表明:生物量的空间分布与海拔梯度有关,呈现一种从北向南阶梯状逐渐降低的带状分布格局;生物量与平均树高、坡度正相关,与土壤厚度、灯光亮度负相关;C5.0决策分析4个主要输入变量的重要性依次为平均树高(0.30)> 灯光亮度(0.24)>坡度(0.23)>土壤厚度(0.22)。

关键词: 森林资源连续清查, 生物量, 空间知识挖掘, 西峡县

Abstract: Xixia,a key forest county in Henan province,was selected as the case study area,while spatial dataset of forest resources continuous inventory in 2003 was collected as the main information sources of data mining.Spatial hot explore,trend analysis,geographically weighted regression (GWR) and C5.0 decision tree analysis were performed on the platform of ArcGIS 9.3 and Clemintine 12.0 to mining spatial knowledge of forest biomass in Xixia county.Research shows that:(1) the spatial distribution of forest biomass is closely related with gradient of elevation,showing a tilting ladder pattern from north to south;(2) forest biomass is positively correlated with average tree height and slope,negatively with soil thickness and light brightness value;(3) the importance of the four major factors is as follows:average tree height (0.30)>light brightness value (0.24)>slope (0.23)>soil thickness (0.22).

Key words: forest resources continuous inventory, biomass, spatial knowledge mining, Xixia

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