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首页> 外文学位 >Geology as a georegional influence on Quercus Fagaceae distribution in Denton and Coke Counties of central and north central Texas and Choctaw County of southeastern Oklahoma, using GIS as an analytical tool.
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Geology as a georegional influence on Quercus Fagaceae distribution in Denton and Coke Counties of central and north central Texas and Choctaw County of southeastern Oklahoma, using GIS as an analytical tool.

机译：使用GIS作为分析工具，地质学对得克萨斯州中部和北部中部的丹顿和可乐县的栎属科植物分布以及俄克拉荷马州东南部的乔克托县产生了影响。

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摘要

This study elucidates the underlying relationships for the distribution of oak landcover on bedrock and soil orders in two counties in Texas and one in Oklahoma. ESRI's ArcGis and ArcMap was used to create surface maps for Denton and Coke Counties, Texas and Choctaw County, Oklahoma. Attribute tables generated in GIS were exported into a spreadsheet software program and frequency tables were created for every formation and soil order in the tri-county research area. The results were both a visual and numeric distribution of oaks in the transition area between the eastern hardwood forests and the Great Plains.; Oak distributions are changing on this transition area of the South Central Plains. The sandy Woodbine and Antlers formations traditionally associated with the largest oak distribution are carrying oak coverage of approximately 31-32% in Choctaw and Denton Counties. The calcareous Blackland and Grand Prairies are traditionally associated with treeless grasslands, but are now carrying oak and other tree landcover up to 18.9%.; Human intervention, including the establishment of artificial, political and social boundaries, urbanization, farming and fire control have altered the natural distribution of oaks and other landcover of this unique georegion.
机译：这项研究阐明了得克萨斯州两个县和俄克拉荷马州一个县橡树土地覆盖物在基岩和土壤阶上的分布之间的潜在关系。 ESRI的ArcGis和ArcMap用于为得克萨斯州的登顿和可乐县以及俄克拉荷马州的乔克托县创建地表。将GIS中生成的属性表导出到电子表格软件程序中，并为三县研究区中的每个地层和土壤顺序创建频率表。结果是橡树在东部硬木森林和大平原之间过渡区域的视觉和数值分布。在中南部平原的这个过渡地区，橡树的分布正在发生变化。传统上与最大的橡树分布相关的沙性伍德拜恩和鹿角地层在乔克托和登顿县的橡树覆盖率约为31-32％。钙质的布莱克兰（Blackland）和大草原（Grand Prairies）传统上与无树的草原相关，但现在携带的橡树和其他树木的土地覆盖率高达18.9％。人为干预，包括建立人为，政治和社会边界，城市化，农业和消防，已改变了这个独特地理区域的橡树和其他土地覆盖的自然分布。

著录项

  • 作者

    Maxey, George F.;

  • 作者单位

    University of North Texas.;

  • 授予单位 University of North Texas.;
  • 学科 Physical Geography.; Geology.; Environmental Sciences.
  • 学位 Ph.D.
  • 年度 2007
  • 页码 208 p.
  • 总页数 208
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 自然地理学;地质学;环境科学基础理论;
  • 关键词

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