Soil, as a non-renewable resource, should be monitored continuously to prevent its
degradation and promote sustainable agriculture. Soil spectroscopy in the visible-near …

Coastal wetland soil organic carbon (CW-SOC) is crucial for both “blue carbon” and carbon
sequestration. It is of great significance to understand the content of soil organic carbon …

The aim of this research was to examine the potential of visible and near infrared (Vis–NIR)
spectroscopy for the prediction and mapping of sand and clay fractions of soils in one …

Determinations of soil carbon and nitrogen stocks are important to evaluate land fertility and
agricultural potential and because of their influence on the global climate. Spectroscopic …

The demand for quality and low-cost soil information is growing due to the demands of land
use planning and precision agriculture. Soil texture is one of the key soil properties, as it …

There is a great challenge in combining soil proximal spectra and remote sensing spectra to
improve the accuracy of soil organic carbon (SOC) models. This is primarily because mixing …

The conventional methods for measuring soil properties are time-consuming and expensive.
Over the past few decades, reflectance spectroscopy has been widely applied as a rapid …

As the use of visual soil evaluation (VSE) methods has spread globally, they have been
exposed to different climatic and pedological scenarios, resulting in the need to elucidate …

Highlights•MIR instruments provided the best performance for the prediction of soil
properties.•Performance of portable MIR instruments similar to laboratory …

Regular and routine soil analysis is vital to properly understand agricultural soil evolution
and sustainably manage nutrient applications over time. Hyperspectral imaging (HSI) is a …