【24h】

Predicting Biodiversity Potential Using a Modified Layers of Habitat Model

机译:使用生境模型的修改层预测生物多样性潜力

获取原文
获取原文并翻译 | 示例

摘要

Ecological resources of the 360-km~2 Kennecott Utah Copper Corporation property in the Oquirrh Mountains has been studied since the 1970s. Detailed descriptions of the vegetation were undertaken in 1994 as part of a site-wide Ecological Risk Assessment (EcoRA). A vegetation map was produced from infrared aerial photographs and floristics lists were compiled for a site-wide ecological risk assessment. Vegetation cover was characterized using a releve sampling procedure. Data from georeferenced releve sampling points were used to propagate vertical structure characteristics across polygons. We adapted the Layers of Habitat HSI Model and calculated an index value for each polygon. Submontane shrub and the submontane shrub/desert shrub cover types comprised 32% and 12% respectively of the site-wide index; contributing more to the site-wide index than their area would suggest. Conversely, the grassland and salt desert shrub cover types contributed less to the site-wide index than their area would suggest. Index values were grouped into pentiles and the polygons were displayed in GIS format to illustrate the spatial distribution of structural diversity. The Layers of Habitat model is a surrogate for biodiversity (richness) potential. The spatial representation of structural diversity is being used to guide management practices to enhance site-wide biodiversity.
机译:自1970年代以来,一直在研究Oquirrh山脉的360 km〜2 Kennecott犹他铜公司财产的生态资源。 1994年对植被进行了详细描述,作为整个站点生态风险评估(EcoRA)的一部分。根据红外航空照片制作了植被图,并编制了植物区系清单以进行全站范围的生态风险评估。植被覆盖度采用不连续采样程序进行表征。来自地理参考的相关采样点的数据用于跨多边形传播垂直结构特征。我们调整了人居HSI模型的图层,并计算了每个多边形的索引值。地下灌木丛和地下灌木丛/沙漠灌木覆盖类型分别占全站指数的32%和12%。对网站范围索引的贡献超出了他们的建议范围。相反,草地和盐漠灌木覆盖类型对站点范围指数的贡献却小于其面积所暗示的。指标值分为五分位数,多边形以GIS格式显示,以说明结构多样性的空间分布。人居层模型是生物多样性(丰富度)潜力的替代物。结构多样性的空间表征被用来指导管理实践,以增强整个站点的生物多样性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号