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Profile Leveling and Cross Sections01:26

Profile Leveling and Cross Sections

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Profile leveling and cross-sections are surveying methods used to determine and document terrain elevations for infrastructure projects such as highways, railroads, canals, and pipelines. These methods provide data for earthwork planning and alignment of proposed routes.  Profile leveling involves measuring elevations along a fixed line to create a vertical terrain profile. A surveyor sets up a leveling instrument at the benchmark (BM) and records a backsight (BS) to determine the...
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Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
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加拿大泥炭地上的泥炭资料数据库.

Ilka E Bauer1, Marissa A Davies2, Kelly A Bona3

  • 1Independent Contractor, Victoria, British Columbia, Canada.

Ecology
|August 15, 2024
PubMed
概括

加拿大的泥炭地储存了大量的碳. 加拿大泥炭地模型 (CaMP v. 2.0) 数据库量化了这种碳储存,有助于将其纳入国家温室气体库存和气候解决方案.

关键词:
加拿大加拿大加拿大加拿大加拿大加拿大灰含量 灰含量 灰含量生物地质化学生物地质化学散装密度 散装密度 散装密度碳含量 碳含量 碳含量泥炭地泥炭地泥炭地泥炭地泥炭地泥炭地

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科学领域:

  • 地球和环境科学 地球和环境科学
  • 生态生态学 生态生态学
  • 气候科学 气候科学

背景情况:

  • 泥炭地占加拿大12%的面积,由于长期储存碳,对碳循环至关重要.
  • 了解泥炭地碳动态对于自然气候解决方案和国家温室气体库存至关重要.

研究的目的:

  • 开发和参数化加拿大泥炭地模型 (CaMP v. 2.0) 数据库.
  • 收集和分析加拿大各地的泥炭形状数据,以估计碳库存.
  • 支持将泥炭地纳入国家温室气体库存和气候变化建模中.

主要方法:

  • 汇编了来自加拿大1217个泥炭地址的数据.
  • 分析了关于散装密度,碳含量和水文反应的泥炭概况.
  • 利用插值和回归树来填补碳质量估计的数据缺口.

主要成果:

  • 开发了一个全面的数据库 (CaMP v. 2.0) 包含网站位置,碳质量和个人资料数据.
  • 估计的加拿大多个泥炭地网站的单位面积总碳质量.
  • 包含了网站子集的地化学数据,增强了数据集的实用性.

结论:

  • 该CaMP v. 2.0数据库提供了碳库存映射和生态系统建模的基本数据.
  • 该资源有助于将泥炭地碳动态纳入气候变化评估.
  • 这些数据可以在加拿大开放政府网站上公开访问,用于未来的研究和政策制定.