Results 111 to 120 of about 897 (206)

Validating the regional estimates of changes in soil organic carbon by using the data from paired-sites: the case study of Mediterranean arable lands. [PDF]

Carbon Balance Manag, 2021
Schillaci C, Saia S, Lipani A, Perego A, Zaccone C, Acutis M.   +5 more
europepmc   +1 more source

The problematic case of data leakage: A case for leave-profile-out cross-validation in 3-dimensional digital soil mapping

Geoderma
Data leakage occurs when there is an overlap between the data used for model fitting and hyperparameter tuning, and those used for testing. This overlap biases the model performance, making it uninformative regarding the model’s ability to generalize ...
Kingsley John, Daniel D. Saurette, Brandon Heung   +2 more
doaj   +1 more source

The roles of sampling depth, lateral profile density and vertical sampling density in 3D digital soil mapping of soil organic carbon

Geoderma
Sampling density and depth play crucial roles in three-dimensional (3D) soil modeling and prediction, particularly in digital soil mapping (DSM). However, previous studies have yielded inconsistent and even contradictory results regarding impacts of ...
Mei-Wei Zhang, Xiao-Lin Sun, Xiao-Qing Wang, Hua-Lei Yang, Hui-Li Wang, Zhi-Gang Huang, Dai-Hua Jiang, Yun-Jin Wu   +7 more
doaj   +1 more source

Traditional or digital soil mapping? [PDF]

, 2016
bitstream/item/147689/1/pedometron23.pdfThe Newsletter of the Pedometrics Commission of the ...
MENDONÇA-SANTOS, M. de L.
core  

Spatial variability of urban forest topsoil properties: towards representative and robust sampling design. [PDF]

Open Res Eur, 2021
Galle N, Brinton W, Vos R, Duarte F, Collier M, Ratti C, Pilla F.   +6 more
europepmc   +1 more source

Measuring in situ soil carbon stocks: A study using a novel handheld VisNIR probe

Geoderma
To be commercially viable, soil carbon project developers need to be able to measure soil carbon stocks across large scales (e.g., 100,000 to 1,000,000 ha). These measurements need to be accurate, unbiased, inexpensive, and fast.
Ayush Joshi Gyawali, Marissa Wiseman, Jason P. Ackerson, Sarah Coffman, Kevin Meissner, Cristine L.S. Morgan   +5 more
doaj   +1 more source

Assessing the geographic specificity of pH prediction by classification and regression trees. [PDF]

PLoS One, 2021
Egelberg J, Pena N, Rivera R, Andruk C.
europepmc   +1 more source

Digital tools against COVID-19: taxonomy, ethical challenges, and navigation aid. [PDF]

Lancet Digit Health, 2020
Gasser U, Ienca M, Scheibner J, Sleigh J, Vayena E.   +4 more
europepmc   +1 more source

Effect of measurement error in wet chemistry soil data on the calibration and model performance of pedotransfer functions

Geoderma
Soil properties that are considered difficult to measure are frequently determined through pedotransfer functions (PTFs). Calibration and validation datasets, containing measurements of the target soil property as well as widely available basic soil ...
Cynthia C.E. van Leeuwen, Vera L. Mulder, Niels H. Batjes, Gerard B.M. Heuvelink   +3 more
doaj   +1 more source

The Economics of Desertification, Land Degradation, and Drought; Toward an Integrated Global Assessment [PDF]

Land degradation has not been comprehensively addressed at the global level or in developing countries. A suitable economic framework that could guide investments and institutional action is lacking.
Baumgartner, Philipp, De Pinto, Alessandro, Gerber, Nicolas, Graw, Valerie, Kato, Edward, Kloos, Julia, Nkonya, Ephraim M., von Braun, Joachim, Walter, Teresa   +8 more
core   +4 more sources