Estimate of carbon stock in the soil via diffuse reflectance spectroscopy (vis/nir) air and orbital remote sensing

IF 0.9 4区 农林科学 Q3 AGRONOMY
Ohana C. O. Faria, G. N. Torres, L. A. D. L. D. Raimo, E. Couto
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引用次数: 0

Abstract

ABSTRACT Current procedures for determining soil organic carbon (SOC) content are costly, time-consuming, and generate polluting chemical waste. Therefore, developing new protocols using aerial and orbital remote sensing and diffuse reflectance spectroscopy (DRS) for digitally mapping the stock of soil organic carbon (CS) is essential for promoting actions of research and monitoring SOC in Brazilian soils. Given this, three areas of commercial plots in the region of the Middle North of Mato Grosso were studied, where sampling was carried out for the determination of SOC in the layer from 0 to 30 cm, evaluated by the dry combustion method and estimated through DRS in the visible to near -infrared region - Vis-NIR-SWIR/350-2500 nm). To obtain the images by aerial remote sensing, the Carcará II® Unmanned Aerial Vehicle was used, with a MicaSense® multispectral camera (RGB + NIR + RedEdge) attached. The orbital sensors used were the Sentinel 2® and Planet® satellites. This study showed that soil carbon stock values could be predicted using different modeling approaches based on field and laboratory spectral measurements. Predictive models to estimate SOC can be established using remote and near sensing, thus allowing a better understanding of spatial patterns of SOC in crop fields.
通过漫反射光谱(可见光/近红外)空气和轨道遥感估算土壤中的碳储量
目前测定土壤有机碳(SOC)含量的方法成本高,耗时长,并且会产生污染的化学废物。因此,开发利用航空和轨道遥感以及漫反射光谱(DRS)对土壤有机碳(CS)储量进行数字测绘的新方案,对于促进巴西土壤有机碳的研究和监测行动至关重要。鉴于此,我们对马托格罗索州中北部地区的三个商业地块进行了研究,在那里进行了采样,以测定0至30 cm层的有机碳,通过干燃烧法进行评估,并通过可见光至近红外区域(Vis-NIR-SWIR/350-2500 nm)的DRS进行估算。为了通过航空遥感获得图像,使用carcar II®无人机,附带MicaSense®多光谱相机(RGB + NIR + reddge)。使用的轨道传感器是Sentinel 2®和Planet®卫星。研究表明,基于田间和实验室光谱测量的不同建模方法可以预测土壤碳储量值。利用遥感和遥感技术可以建立土壤有机碳的预测模型,从而更好地了解农田土壤有机碳的空间分布规律。
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来源期刊
Revista Caatinga
Revista Caatinga AGRONOMY-
CiteScore
2.10
自引率
11.10%
发文量
67
审稿时长
6-12 weeks
期刊介绍: A Revista Caatinga é uma publicação científica que apresenta periodicidade trimestral, publicada pela Pró-Reitoria de Pesquisa e Pós-Graduação da Universidade Federal Rural do Semi-Árido – UFERSA, desde 1976. Objetiva proporcionar à comunidade científica, publicações de alto nível nas áreas de Ciências Agrárias e Recursos Naturais, disponibilizando, integral e gratuitamente, resultados relevantes das pesquisas publicadas.
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