一个基于激光雷达的国家模型的和其他木质线性特征在英格兰农村
Richard K Broughton1, Rich J Burkmar1, Morag E McCracken1
1UK Centre for Ecology & Hydrology, Benson Lane, Crowmarsh Gifford, Wallingford, OX10 8BB, UK.
Journal of environmental management
|July 25, 2025
概括
在英格兰使用开放式激光雷达数据绘制木质线性特征 (WLF),其范围和总长度非常准确. 这种遥感方法为监测这些重要的农田息地和碳储存提供了一个可扩展的解决方案.
科学领域:
- 环境科学 环境科学
- 遥感 遥感 遥感 遥感
- 生态生态学 生态生态学
背景情况:
- 木质线性特征 (WLF) 是农业景观中重要的半自然息地,文化元素和碳汇,特别是在西欧.
- 由于传统绘图的局限性,对WLF范围和尺寸的大规模监测具有挑战性.
- 遥感为WLF映射提供了高分辨率,可扩展的解决方案,但国家规模的应用很少.
研究的目的:
- 为了评估使用公开可用的1米2分辨率激光雷达数据来建模英格兰各地的WLF范围和高度的可行性.
- 为了比较激光雷达衍生WLF模型与广泛的地面验证数据进行验证.
- 为了估计英格兰WLF的总长度和特征.
主要方法:
- 利用高性能计算处理英格兰国家激光雷达数据.
- 开发模型来绘制木质线性特征 (WLF) 的范围和高度.
- 在248个样本方块 (每一个1平方公里) 进行了地面验证,以验证模型.
主要成果:
- 激光雷达模型对WLF范围和总长度的地面验证显示出高度一致 (99.7%).
- 74%的建模WLF在距离地面20米之内对齐.
- 据估计,英格兰的WLF总长度为641,079.8公里,其中61%被确定为经营的树 (1-6米高).
结论:
- 在高性能计算环境中处理的公开的国家激光雷达数据,为绘制和监测木质线性特征 (WLF) 提供了强大的工具.
- 开发的模型显著改善了之前的WLF绘图工作,提供了可扩展的国家概述.
- 进一步的研究应该探索该模型的局限性和增强生态和碳储存评估的潜力.
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