Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.3390/w12010261 |
| Estimating Soil Organic Carbon in Agricultural Gypsiferous Soils by Diffuse Reflectance Spectroscopy | |
| Jose Marques, Maria1; Maria Alvarez, Ana1; Carral, Pilar1; Esparza, Iris2; Sastre, Blanca2; Bienes, Ramon2 | |
| 通讯作者 | Jose Marques, Maria |
| 来源期刊 | WATER
 |
| EISSN | 2073-4441 |
| 出版年 | 2020 |
| 卷号 | 12期号:1 |
| 英文摘要 | Contents of soil organic carbon (SOC), gypsum, CaCO3, and quartz, among others, were analyzed and related to reflectance features in visible and near-infrared (VIS/NIR) range, using partial least square regression (PLSR) in ParLes software. Soil samples come from a sloping olive grove managed by frequent tillage in a gypsiferous area of Central Spain. Samples were collected in three different layers, at 0-10, 10-20 and 20-30 cm depth (IPCC guidelines for Greenhouse Gas Inventories Programme in 2006). Analyses were performed by C Loss-On-Ignition, X-ray diffraction and water content by the Richards plates method. Significant differences for SOC, gypsum, and CaCO3 were found between layers; similarly, soil reflectance for 30 cm depth layers was higher. The resulting PLSR models (60 samples for calibration and 30 independent samples for validation) yielded good predictions for SOC (R-2 = 0.74), moderate prediction ability for gypsum and were not accurate for the rest of rest of soil components. Importantly, SOC content was related to water available capacity. Soils with high reflectance features held c.a. 40% less water than soils with less reflectance. Therefore, higher reflectance can be related to degradation in gypsiferous soil. The starting point of soil degradation and further evolution could be established and mapped through remote sensing techniques for policy decision making. |
| 英文关键词 | VIS NIR spectrometry desertification erosion Spain olive orchards |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | Spain |
| 开放获取类型 | Green Published, gold |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000519847200261 |
| WOS关键词 | NEAR-INFRARED SPECTROSCOPY ; QUANTITATIVE-ANALYSIS ; GYPSUM ; CLAY ; NIR ; CLASSIFICATION ; DEGRADATION ; MANAGEMENT ; INDICATOR ; KNOWLEDGE |
| WOS类目 | Environmental Sciences ; Water Resources |
| WOS研究方向 | Environmental Sciences & Ecology ; Water Resources |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/315708 |
| 作者单位 | 1.Autonomous Univ Madrid, Fac Sci, Geol & Geochem Dept, Calle Francisco Tomas y Valiente, E-28049 Madrid, Spain; 2.Inst Madrileno Invest & Desarrollo Rural Agr & Al, Dept Invest Aplicada & Extens Agr, Finca El Encin Autovia A-2 Km 38-2, Alcala De Henares 28800, Spain |
| 推荐引用方式 GB/T 7714 | Jose Marques, Maria,Maria Alvarez, Ana,Carral, Pilar,et al. Estimating Soil Organic Carbon in Agricultural Gypsiferous Soils by Diffuse Reflectance Spectroscopy[J],2020,12(1). |
| APA | Jose Marques, Maria,Maria Alvarez, Ana,Carral, Pilar,Esparza, Iris,Sastre, Blanca,&Bienes, Ramon.(2020).Estimating Soil Organic Carbon in Agricultural Gypsiferous Soils by Diffuse Reflectance Spectroscopy.WATER,12(1). |
| MLA | Jose Marques, Maria,et al."Estimating Soil Organic Carbon in Agricultural Gypsiferous Soils by Diffuse Reflectance Spectroscopy".WATER 12.1(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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