The spectroscopic predictions of the soil properties were compared with actual values in a subset of sample data separated from the whole data for validation. The criteria of success that we used were the root mean squared error (RMSE) to measure the inaccuracy of our predictions, the mean ...
Moreover, the model’s ability to identify each diagnostic horizon was different depending on whether their visual features embodied in the images as defined in the CST were obvious and broad, as well as their respective sample sizes. Furthermore, the special case of simultaneous claying and fer...
We collected two kinds of tea leaf samples (young and old leaf samples) from study area. For every sample site, we first assessed the quantity of young leaves. If the tea trees had many young leaves, we picked 1 bud and 2–3 young leaves from ten or more tea trees around the sample...
Sample storage before analysis x Reliability and reproducibility of measurement x x x x x x x Existence of a standard method of estimation (standard operating procedure) x x Availability of reference material for quality control x Cost (sampling, hardware, analysis, labour) x x x x x x...
Additionally, we sample earthworms over the whole catchment to estimate earthworm distribution maps. In lab studies, we apply near-infrared-spectroscopy to link the signal of macropores and aggregates to certain earthworm species, as well as to derive the age of the structures. Individual-based ...
Before immersion in soil solutions, the properties of P25 was investigated. The SEM micrograph shows that the P25 sample contained particles of different shapes due to its polycrystalline structure (Fig.2a). The XRD pattern shows that it contained anatase and rutile phases based on the diffraction...
1). Tufts of guard-hair were collected from free ranging badgers using non-invasive hair traps (consisting of lengths of barbed wire stretched between two upright poles near to sett entrances49). Hair traps were set seven days prior to sample collection. Subsequently, hair samples were collected...
As such, the specific objectives and aims of this research were to: (1) sample and scan soils from golf courses, and develop spatial variability of them via EBK; (2) Moreover, perform coupled relationships between soil properties and PXRF-quantified elements based on OLSM, and reveal the ...
Szerement J, Woszczyk A, Szypłowska A, Kafarski M, Lewandowski A, Wilczek A, Skierucha W (2019) A seven-rod dielectric sensor for determination of soil moisture in well-defined sample volumes. Sensors 29(1646):1–12.https://doi.org/10.3390/s19071646 ...
Figure 1. Study area showing hydrologic units (HUC8 watersheds) that are dominated by grasslands andshrublands(area > 70%). Stars represent locations of United States Climate Reference Network (USCRN) soil moisture observation sites used in this study. The background image is the sample image ...