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Geospatial relationships of tree species damage caused by Hurricane Katrina in south Mississippi.

机译:密西西比州南部卡特里娜飓风造成的树种破坏的地理空间关系。

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摘要

This study examined Hurricane Katrina damage in southeast Mississippi to identify stand and site characteristics that may contribute to wind-related damage. Aggregated forest plot-level biometrics were coupled with storm meteorology, topographical features, and soil attributes using GIS techniques to produce damage maps for specific tree species. Regression Tree Analysis was utilized to explore the relationship between damage type and distance variables (distance to coast/storm track). Results indicated that the total damage class had the greatest relationship with distance variables; individual damage classes (shear and blowdown) displayed a better relationship with stand-level variables (Quadratic Mean Diameter, Lorey's Mean Height, Trees Per Hectare). Logistic regressions identified a negative relationship between damage and height variation, elevation, slope, and aspect and a positive relationship with TPH. For plots/stands nearest to the coast and storm track height variation, TPH, QMD, and LMH consistently predicted damage levels for most species examined.
机译:这项研究检查了密西西比州东南部的卡特里娜飓风造成的损害,以确定可能造成风灾的林分和立地特征。使用GIS技术将汇总的森林地块级生物识别技术与风暴气象学,地形特征和土壤属性相结合,以生成特定树种的破坏图。回归树分析用于探索损伤类型与距离变量(到海岸/风暴路径的距离)之间的关系。结果表明,总损伤等级与距离变量之间的关系最大。单个损伤类别(剪切和排污)与林木级变量(二次平均直径,洛雷平均高度,每公顷树木)显示出更好的关系。 Logistic回归确定了损伤与高度变化,高程,坡度和坡向之间的负相关关系以及与TPH的正相关关系。对于最接近海岸和风暴路径高度变化的地块/林地,TPH,QMD和LMH一致地预测了大多数受检查物种的破坏水平。

著录项

  • 作者

    Garrigues, Mark William.;

  • 作者单位

    Mississippi State University.;

  • 授予单位 Mississippi State University.;
  • 学科 Agriculture Forestry and Wildlife.
  • 学位 M.S.
  • 年度 2011
  • 页码 168 p.
  • 总页数 168
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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