Article
Forestry
Miao Long, Tianxiang Yue, Zhe Xu, Jiaxin Guo, Jie Luo, Xi Guo, Xiaomin Zhao
Summary: The rapid quantitative assessment of soil organic carbon (SOC) is crucial for understanding SOC dynamics and developing management strategies in forest ecosystems. Visible and near-infrared spectroscopy is an efficient and inexpensive technique widely used for predicting SOC content. By comparing different spiking strategies, a cost-effective and accurate method was developed for local-scale SOC assessment in target forest areas using a large soil spectral library.
Article
Chemistry, Analytical
Baohua Tan, Wenhao You, Shihao Tian, Tengfei Xiao, Mengchen Wang, Beitian Zheng, Lina Luo
Summary: This study presents a method for rapid detection of nitrogen content in soil using near-infrared spectroscopy and random forest regression. The results show that the proposed method has higher prediction accuracy compared to other models and effectively reduces data redundancy.
Article
Biodiversity Conservation
Jianfei Cao, Han Yang
Summary: In this study, a new dynamic normalized difference index (DNDI) was proposed to estimate soil organic matter (SOM) using visible and near-infrared spectroscopy. The results showed that the DNDI index had a higher correlation with SOM compared to the two-dimensional normalized difference index (NDI). The DNDI model exhibited better performance in SOM estimation.
ECOLOGICAL INDICATORS
(2023)
Article
Soil Science
Shuyu Liu, Jiaying Chen, Long Guo, Junguang Wang, Zefan Zhou, Jingyi Luo, Ruiqing Yang
Summary: With the development of near Earth remote sensing technology, the near-Earth hyperspectral imaging system can acquire hyperspectral images of soil profiles and characterize the fine texture differences and spectral variations of soil. This study used visible-near-infrared hyperspectral imaging spectroscopy to predict organic carbon in soil profiles.
SOIL & TILLAGE RESEARCH
(2023)
Article
Soil Science
Yongsheng Hong, Muhammad Abdul Munnaf, Angela Guerrero, Songchao Chen, Yaolin Liu, Zhou Shi, Abdul Mounem Mouazen
Summary: Spectral techniques, including the fusion of visible-to-near-infrared and mid-infrared absorbance, can improve the estimation of soil organic carbon. The use of continuous wavelet transform and optimal band combination strategies contribute to the accuracy of the prediction models. Among the investigated models, the combination of visible-to-near-infrared and mid-infrared using the optimal band combination fusion at a specific scale yielded the best prediction.
SOIL & TILLAGE RESEARCH
(2022)
Article
Environmental Sciences
Yang Yan, Jiajie Yang, Baoguo Li, Chengzhi Qin, Wenjun Ji, Yan Xu, Yuanfang Huang
Summary: This study aims to test the feasibility of using UAV hyperspectral data to map soil organic matter at a 1 m resolution. The results show that the random forest model based on UAV hyperspectral data can successfully predict soil organic matter with high accuracy, compared to other prediction methods.
Article
Chemistry, Multidisciplinary
Xiaomi Wang, Can Yang, Mengjie Zhou
Summary: This study combines the PLS-MARS method and the MVARC-R-KS method to construct a nonlinear prediction model for soil organic matter, achieving local optimization considering spatial heterogeneity. Through a case study in Jianghan Plain, China, the proposed method shows superior accuracy and robustness compared to existing methods.
APPLIED SCIENCES-BASEL
(2021)
Article
Environmental Sciences
Paulina B. Ramirez, Francisco J. Calderon, Michelle Haddix, Emanuele Lugato, M. Francesca Cotrufo
Summary: Large-scale quantification of soil organic carbon and nitrogen stocks, particularly in different carbon pools, is necessary for developing land management strategies. Diffuse reflectance mid-infrared spectroscopy coupled with partial least square analysis has shown promise for predicting soil properties accurately, but further calibration may be needed for specific soil types or land uses.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2021)
Article
Environmental Sciences
Wei Zhou, Jieyun Xiao, Haoran Li, Qi Chen, Ting Wang, Qian Wang, Tianxiang Yue
Summary: This study revealed that UV/VIS spectroscopy can be used to improve the prediction accuracy of soil organic matter content. By combining four wavelength optimization algorithms and inversion models, and using 269 soil samples, the optimal prediction model was obtained.
JOURNAL OF SOILS AND SEDIMENTS
(2023)
Article
Spectroscopy
Jinbao Liu, Zhenyu Dong, Junshi Xia, Huanyuan Wang, Tingting Meng, Ruiqing Zhang, Jichang Han, Ni Wang, Jiancang Xie
Summary: The study utilized the CARS algorithm and RF regression model to establish an accurate model for estimating the SOM content of farmland soil, thereby improving the model's precision and predictive ability.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Forestry
Chunxu Li, Jinghan Zhao, Yaoxiang Li, Yongbin Meng, Zheyu Zhang
Summary: Using VIS-NIR technology and multiple regression analysis, a highly accurate and stable prediction model for soil organic matter content was developed in the forest of the Greater Khingan Mountains. By combining various preprocessing algorithms and characteristic variable selection methods, significant improvements in model performance and prediction efficiency were achieved. The results showed that the combination of S-G smoothing with SNV or MSC preprocessing strategies had the best performance in enhancing the model accuracy.
Article
Soil Science
Aymbire Angeletti da Fonseca, Celio Pasquini, Daniela Cristina Costa, Emanuelle Merces Barros Soares
Summary: Increasing the sample area probed using a rotational-linear sample probing device resulted in more representative and reproducible spectral data, improving the performance of compact spectrophotometers in SOC determination. Significant enhancements in SOC determination ranging from 146 to 400 % were found, with the rotationallinear sample probing device being recommended for SOC determinations using compact NIR spectrophotometers.
Article
Soil Science
Severin-Luca Belle, Jean Riotte, Muddu Sekhar, Laurent Ruiz, Marcus Schiedung, Samuel Abiven
Summary: The study found that soil organic carbon stocks and quality in southwestern India are influenced by various factors including vegetation, geology, and soil properties. Importantly, a significant portion of organic carbon is stored in soils below 30 cm, highlighting the importance of tropical subsoils.
Article
Spectroscopy
Rui Li, Yan Liu, Zhenzhen Xia, Qiao Wang, Xin Liu, Zhiyong Gong
Summary: NIRS combined with chemometric methods was used for geographical discrimination of water caltrop shells and quantitative analysis of total phenolic content (TPC) and total flavonoid content (TFC). The results showed the feasibility of this method for accurate discrimination of water caltrop shells from different regions, and for quantitative analysis of TPC and TFC.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Forestry
Mateusz Kania, Dawid Kupka, Piotr Gruba
Summary: This study investigated the use of NIR spectroscopy to predict the content of different fractions of soil organic matter and evaluate forest soil properties. The results showed the potential of NIR spectroscopy in determining soil parameters, although it had less accuracy in assessing the light fraction.
Article
Geography, Physical
Barbora Vyslouzilova, Damien Ertlen, Ludek Sefrna, Tibor Novak, Klara Viragh, Mathieu Rue, Arnaud Campaner, Dagmar Dreslerova, Dominique Schwartz
QUATERNARY INTERNATIONAL
(2015)
Article
Soil Science
Damien Ertlen, Dominique Schwartz, Didier Brunet, Jean-Michel Trendel, Pierre Adam, Philippe Schaeffer
SOIL BIOLOGY & BIOCHEMISTRY
(2015)
Article
Biodiversity Conservation
Eugenie Schwoertzig, Damien Ertlen, Michele Tremolieres
Article
Geochemistry & Geophysics
Blandine Courel, Philippe Schaeffer, Pierre Adam, Estelle Motsch, Quentin Ebert, Emile Moser, Clement Feliu, Stefano M. Bernasconi, Irka Hajdas, Damien Ertlen, Dominique Schwartz
ORGANIC GEOCHEMISTRY
(2017)
Article
Environmental Sciences
Anne-Desiree Schmitt, Natalia Borrelli, Damien Ertlen, Sophie Gangloff, Francois Chabaux, Margarita Osterrieth
Article
Infectious Diseases
Valerie Goldstein, Nathalie Boulanger, Dominique Schwartz, Jean-Claude George, Damien Ertlen, Laurence Zilliox, Mickael Schaeffer, Benoit Jaulhac
TICKS AND TICK-BORNE DISEASES
(2018)
Article
Geochemistry & Geophysics
Gilles Schnell, Philippe Schaeffer, Herve Tardivon, Estelle Motsch, Jacques Connan, Damien Ertlen, Dominique Schwartz, Nathalie Schneider, Pierre Adam
ORGANIC GEOCHEMISTRY
(2014)
Article
Plant Sciences
Barbora Vyslouzilova, Lenka Dankova, Damien Ertlen, Jan Novak, Dominique Schwartz, Ludek Sefrna, Claire Delhon, Jean-Francois Berger
VEGETATION HISTORY AND ARCHAEOBOTANY
(2014)
Article
Geology
Stoil Chapkanski, Damien Ertlen, Claire Rambeau, Laurent Schmitt
Article
Geosciences, Multidisciplinary
Franck Lavigne, Julie Morin, Patrick Wassmer, Olivier Weller, Taaniela Kula, Ana V. Maea, Karim Kelfoun, Fatima Mokadem, Raphael Paris, Mukhamad Ngainul Malawani, Audrey Faral, Mhammed Benbakkar, Segolene Saulnier-Copard, Celine M. Vidal, Tu'I'ahai Tu'I'afitu, Fuka Kitekei'aho, Martine Trautmann, Christopher Gomez
Summary: Despite significant scientific advances in recent years, the pre-colonial history of Tonga and West Polynesia before the 16th century still has major gaps. In the 14th century, the powerful Tu'i Tonga kingdom united the islands under central authority, but by the mid-15th century, they faced deep crisis possibly linked to a large tsunami event.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Geosciences, Multidisciplinary
Bachtiar W. Mutaqin, Franck Lavigne, Patrick Wassmer, Martine Trautmann, Puncak Joyontono, Christopher Gomez, Bagus Septiangga, Jean-Christophe Komorowski, Junun Sartohadi, Danang Sri Hadmoko
Summary: Indonesia is prone to earthquakes, volcanic activities, and tsunamis. The study aimed to investigate marine-origin sediments along the Alas Strait of Indonesia to find evidence and determine their ages. Coral and seashell samples from the western coast of Sumbawa yielded possible tsunami deposits dating back to the 4th, 9th, and 17th centuries, indicating past large earthquakes triggered these tsunamis rather than volcanic eruptions.
Article
Geosciences, Multidisciplinary
Ferreol Salomon, Dario Bernal-Casasola, Jose J. Diaz, Macarena Lara, Salvador Dominguez-Bella, Damien Ertlen, Patrick Wassmer, Pierre Adam, Philippe Schaeffer, Laurent Hardion, Cecile Vittori, Stoil Chapkanski, Hugo Delile, Laurent Schmitt, Frank Preusser, Martine Trautmann, Alessia Masi, Cristiano Vignola, Laura Sadori, Jacob Morales, Paloma Vidal Matutano, Vincent Robin, Benjamin Keller, Angel Sanchez Bellon, Javier Martinez Lopez, Gilles Rixhon
SCIENTIFIC DRILLING
(2020)
Article
Geosciences, Multidisciplinary
Lucie Froehlicher, Dominique Schwartz, Damien Ertlen, Martine Trautmann