A briga pela primeira posição do Campeonato Espanhol segue acirrada. Após o Atlético de Madrid conseguir uma vitória ...

The color variety of soil is response of its physical, chemical, biological and mineralogical composition. The Munsell color system is based on an objective color evaluation in which it is possible to ...

The variability of the soil total organic carbon (TOC) is due to the soil constant losses, contributions, and exchanges of carbon with other systems, mainly with vegetation and atmosphere. Determining ...