Zobrazeno 1 - 10
of 20
pro vyhledávání: '"R. J. Heck"'
Publikováno v:
Hydrology and Earth System Sciences, Vol 13, Iss 10, Pp 1993-2002 (2009)
The hydraulic conductivity of unsaturated peat soil is controlled by the air-filled porosity, pore size and geometric distribution as well as other physical properties of peat materials. This study investigates how the size and shape of pores affects
Externí odkaz:
https://doaj.org/article/8493d8f24c6547dd8db744512bec5eaf
Publikováno v:
Nonlinear Processes in Geophysics, Vol 15, Iss 6, Pp 881-891 (2008)
With the advent of modern non-destructive tomography techniques, there have been many attempts to analyze 3-D pore space features mainly concentrating on soil structure. This analysis opens a challenging opportunity to develop techniques for quantify
Externí odkaz:
https://doaj.org/article/064f5057c14d4556850b111839630d1f
Publikováno v:
Revista Brasileira de Ciência do Solo, Vol 26, Iss 1, Pp 191-202 (2002)
This study compares the chemical composition of the solution and exchange complex of soil in a 3-year-old irrigated vineyard (Vitis vinifera L., Red Globe cultivar) with that of adjacent clearing in the native hyperxerophyllic 'caatinga' vegetation.
Externí odkaz:
https://doaj.org/article/c2ced2f4333d42e4b210fb077073ef53
Publikováno v:
Revista Brasileira de Ciência do Solo, Vol 23, Iss 3, Pp 651-660 (1999)
This study was conducted to examine the distribution and nature of Fe oxides in plinthic soils on the sediments of Barreiras Group (in the state of Piauí) and Itapecuru Formation (in the state of Maranhão) in Northeastern Brazil. Four pedons were s
Externí odkaz:
https://doaj.org/article/38b1eb0ccced41ac90929f841f2abc4e
Publikováno v:
Revista Brasileira de Ciência do Solo, Vol 22, Iss 4, Pp 761-771 (1998)
Investigações micromacromorfológicas, físicas, químicas e mineralógicas foram realizadas em solos Podzólicos Amarelos na região do submédio São Francisco, município de Petrolina, estado de Pernambuco. O objetivo do estudo foi caracterizar
Externí odkaz:
https://doaj.org/article/049e0e45c52d4612ad925fb5920cbbaf
Publikováno v:
Precision Agriculture. 12:623-638
A world-wide need to use water resources efficiently necessitates more effective approaches to study water and contaminant transport in soil. This study examined the effectiveness of a multi-receiver electromagnetic induction probe (Geonics EM31-3RT)
Publikováno v:
Canadian Journal of Soil Science. 85:233-244
The major horizons of Gleysolic and Chernozemic soils and the underlying deep till of five cores were separated into sand-, silt- and clay-sized fractions. Pedogenesis increased the ranges of magnetic susceptibility (χ) and oxalate (Feo) and dithion
Publikováno v:
Revista Brasileira de Ciência do Solo v.23 n.3 1999
Revista Brasileira de Ciência do Solo
Sociedade Brasileira de Ciência do Solo (SBCS)
instacron:SBCS
Revista Brasileira de Ciência do Solo, Volume: 23, Issue: 3, Pages: 651-660, Published: SEP 1999
Revista Brasileira de Ciência do Solo, Vol 23, Iss 3, Pp 651-660 (1999)
Revista Brasileira de Ciência do Solo
Sociedade Brasileira de Ciência do Solo (SBCS)
instacron:SBCS
Revista Brasileira de Ciência do Solo, Volume: 23, Issue: 3, Pages: 651-660, Published: SEP 1999
Revista Brasileira de Ciência do Solo, Vol 23, Iss 3, Pp 651-660 (1999)
This study was conducted to examine the distribution and nature of Fe oxides in plinthic soils on the sediments of Barreiras Group (in the state of Piauí) and Itapecuru Formation (in the state of Maranhão) in Northeastern Brazil. Four pedons were s
Autor:
R. J. Heck, A. R. Mermut
Publikováno v:
Soil Science. 164:242-251
Although the dissolution of Fe oxides has been studied extensively, information regarding the dissolution of Fe from tropical plinthic soils is limited. This study examined the influence of acidity, temperature, and chemical reduction on extraction f
Autor:
A. R. Mermut, R. J. Heck
Publikováno v:
Soil Science Society of America Journal. 56:842-848