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将遥感和土壤特性联系起来,以模拟亚马逊雨林自然保护区的空间模式

Ygor Oliveira Sarmento Rodrigues^1,2, Lucas Cabrera Monteiro^3,4, Ronaldo de Almeida⁵

¹Laboratório de Geoestatística E Geodésia, Faculdade UnB Planaltina, University of Brasília, Brasília, DF, Brazil.

Environmental monitoring and assessment

|December 29, 2025

概括

亚马逊土壤中的热点与地形和植被有关,受大气沉积和水流的影响. 整合遥感数据可以改善对保护工作的预测.

科学领域:

环境科学环境科学
地质化学地质化学
生态生态学生态生态学

背景情况:

亚马逊土壤中的 (Hg) 积累是一个复杂的过程.
了解其空间分布对于评估生态系统脆弱性和为热带森林的保护战略提供信息至关重要.

研究的目的:

研究亚马逊土壤中总 (THg) 度的空间分布.
评估环境变量对Hg分布的影响.
开发Hg度的准确预测模型.

主要方法:

在亚马逊雨林保护区的5x5公里网格中采集了30个地表土壤样本.
使用冷蒸汽生成原子吸收光谱仪分析总 (THg) 度.
地质统计插值 (普通Kriging和Co-Kriging) 和变形图分析的应用.
综合遥感变量 (主要生产率 - GPP,距离最近排水处的高度 - HAND),土壤分类和土壤有机物 (SOM).

主要成果:

平均THg度为60.51±18.16μg/kg−1.1. 这一值为0.51±18.16μg/kg−1.
结合GPP和HAND的协同造模型实现了最低的平均绝对误差 (MAE = 0.027).
仅GPP是一个显著的预测指标 (MAE = 0.04),表明与大气Hg沉积和地形的联系.
Hg热点被确定在中间的地形区域,具有高活动和漏.

结论:

将地缘统计建模与遥感产品相结合,为预测亚马逊土壤中Hg分布提供了一个强大的方法.
这些发现可以为敏感的热带生态系统的环境监测和管理提供信息.
的空间模式受到大气沉积,水文过程和土壤性质的结合的影响.

关键词:

亚马逊的土壤是亚马逊的土壤.地理统计学分析.毛初级生产率的生产率.在最近的排水道上方的高度.遥感是一种远程传感.土壤有机物质土壤有机物质.

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