Autor: Renger, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Wpływ mikroreliefu i wapnowania na odczyn i mikrostrukturę gleby leśnej
Influence of microrelief and liming on the soil reaction and the microstructure of forest soil
Autorzy:: Hajnos, M.
Sokolowska, Z.
Renger, M.
Powiązania:: https://bibliotekanauki.pl/articles/801960.pdf
Data publikacji:: 1998
Wydawca:: Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Opis:: Influence of microrelief and liming on the soil reaction and the microstructure of acid sandy forest soil were investigated. Sampling site was a 40 year old pine plantation on a Cambic Arenosol. The site was characterized by ridge - furrow microrelief. The microstructure of soil samples, taken from two profiles was determined on the base of the mercury intrusion porosimetry measurements. Total porosite, pore volume, bulk density and pore size distribution curves were obtained. Generally, a decrease of the microstuctura) parameters after liming were observed, especially in the ridge samples. Dependence between organic carbon, fulvic to humic acids ratio and total porosity, pore volume, bulk density for lime sample was noted. Solubilization of organic matter, their redistribution within soil profile by leaching and their quantity and quality are the base for explaining the influence of liming on the microstructure of forest soil.
Źródło:: Zeszyty Problemowe Postępów Nauk Rolniczych; 1998, 456
0084-5477
Pojawia się w:: Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: New pedotransfer function (“CRC”) for the prediction of unsaturated soil hydraulic conductivity using soil water retention data
Autorzy:: Bohne, K.
Renger, M.
Wessolek, G.
Powiązania:: https://bibliotekanauki.pl/articles/2082651.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: soil texture
hydraulic conductivity
transfer
function
soil water retention
Opis:: Several review articles have emphasized, that a comprehensive set of pedotransfer functions may be applied throughout a wide range of disciplines of Earth system sciences and are of great importance for land surface models. Most pedotransfer functions deducing soil hydraulic data from nonhydraulic soil data such as soil texture and bulk density, yield soil water retention predictions, but do not provide information concerning soil hydraulic conductivity. For this reason, a simple method was developed to estimate soil hydraulic conductivity using soil water retention information. Empirical equations are established to predict soil hydraulic conductivity from soil water retention information. These equations are relatively straightforward and do not require the fitting of nonlinear functions. Predictions of soil hydraulic conductivity using 106 soil samples indicates the reliable performance of the new method. The prediction quality of the new method was estimated from the calibration data set, which produced equivalent results to the Zacharias and Wessolek pedotransfer function, which were even better than the predictions obtained from the original Mualem-van Genuchten model, the Soto fractal model, and the pedotransfer function reported by Weynants and Vereecken. The stochastic structure of the calibration data reflects the presence of important soil structural properties, which are not represented by the soil water retention characteristics.
Źródło:: International Agrophysics; 2019, 33, 4; 503-510
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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