20131227

Author : Zhao, S. Q. Zhu, C. Zhou, D. C. Huang, D. Werner, J.
Year : 2013
Title : Organic Carbon Storage in China's Urban Areas
Journal : Plos One
Comment : They estimated that total carbon storage in China’s urban areas was 577±60 Tg C in 2006. Soil was the largest contributor to total carbon storage (56%), followed by buildings (36%), and vegetation (7%), while carbon storage in humans was relatively small (1%). This value might be useful for estimating urban carbon storage at regional to global scales.

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20190405

Author  :  Moura-Bueno, J. M. Dalmolin, R. S. D. ten Caten, A. Dotto, A. C. Dematte, J. A. M. Year  : 2019 Title  :  Stratification of a local VIS-NIR-SWIR spectral library by homogeneity criteria yields more accurate soil organic carbon predictions Journal  :  Geoderma Comment   :    The aim of this research was to  i) characterize and identify differences among spectra obtained for subtropical soils samples, ii)  evaluate different pre-processing techniques and multivariate methods to propose SOC prediction models from  the spectral data and iii) evaluate the performance of SOC prediction models calibrated from the stratification of  a local library.  Spectral reflectance measurements were performed in the  laboratory with a spectroradiometer in the range of 350–2500 nm. Six pre-processing techniques were applied to  the spectra (including derivatives, normalization and non-linear transformations) and four multivariate calibration  methods, namely, partial least
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20181130

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Author  :  Eleanor Hobley, Markus Steffens, Sara L. Bauke & Ingrid Kögel-Knabner Year  : 2018 Title  :  Hotspots of soil organic carbon  storage revealed by laboratory  hyperspectral imaging Journal  :  Scientific Reports Comment   :   They tested the application  of laboratory hyperspectral imaging with a variety of machine learning approaches to predict OC  distribution in undisturbed soil cores.  Despite a  large increase in variance and reduction in OC content with increasing depth, the high resolution of the  images enabled statistically powerful analysis in spatial distribution of OC in the soil cores.  Laboratory hyperspectral imaging enables  powerful, fine-scale investigations of the vertical distribution of soil OC as well as hotspots of OC  storage in undisturbed samples, overcoming limitations of traditional soil sampling campaigns.
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20140912

Author  : Carlos A. Cuevas, Alberto Notario, Jose´ Antonio Adame, Andreas Hilboll, Andreas Richter, John P. Burrows & Alfonso Saiz-Lopez Year  : 2014 Title  :  Evolution of NO2 levels in Spain from 1996 to 2012 Journal  : Scientific reports Comment   : In this work, they report on the NO2 geographical distribution and concentration trends over Spain using combined multiple satellite datasets and ground-based observations from five metropolitan areas in the country: Madrid, Barcelona, Valencia, Sevilla and Bilbao. NOx emissions in a country or region are directly related to its industrial and economic development. The results in these five cities show a smooth decrease in the NO2 concentrations of, 2% per year in the period 1996–2008, due to the implementation of emissions control environmental legislation, and a more abrupt descend of,7% per year from 2008 to 2012 as a consequence of the economic recession.
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