Autor: Poesen, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Pinhole test for identifying susceptibility of different horizons in less - derived soils to piping erosion
Autorzy:: Nadal-Romero, M. E.
Verachtert, E.
Poesen, J.
Powiązania:: https://bibliotekanauki.pl/articles/295142.pdf
Data publikacji:: 2011
Wydawca:: Stowarzyszenie Geomorfologów Polskich
Tematy:: pinhole test
subsurface erosion
hydraulic head
antecedent soil moisture content
water quality
Opis:: The pinhole test is an empirical test based on the qualitative evaluation of the dispersivity (colloidal erodibility) of compacted fined-grained soils. This study evaluates the pinhole test device for the quantitative assessment of the susceptibility of soil horizons to piping. The experiments performed on different loess-derived soil horizons, with different hydraulic head and using distilled water show that the clay-enriched horizon (Bt horizon) is less susceptible to piping than the decalcified (C1) and the calcareous horizon (C2). This study demonstrates that the pinhole test is suitable for assessing the susceptibility of soil horizons to piping in a quantitative way.
Źródło:: Landform Analysis; 2011, 17; 131-134
1429-799X
Pojawia się w:: Landform Analysis
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Impact of land use and soil properties on piping in Belgium
Autorzy:: Verachtert, E.
Devoldere, S.
Van Den Eeckhaut, M.
Poesen, J.
Powiązania:: https://bibliotekanauki.pl/articles/295206.pdf
Data publikacji:: 2011
Wydawca:: Stowarzyszenie Geomorfologów Polskich
Tematy:: soil piping
subsurface erosion
biological activity
earthworm
Opis:: Field observations and literature reveal that land use and soil characteristics play an important role in the development of piping. In this study, the hypothesis is tested that discontinuities in the soil profile favour piping erosion in loess-derived soils in a temperate humid climate. Abiotic characteristics (clay content, bulk density, Ksat, penetration resistance) and the biological activity in the soil were measured for each soil horizon until a depth of at least 40 cm below the pipes (ca. 1.30 m) for 12 representative soil profiles with different land use (pasture with and without collapsed pipes, arable land and forest). No clear discontinuities in abiotic characteristics were observed at soil depths where subsurface pipes occurred, but pastures with piping had significantly more earthworm channels and mole burrows at larger depths than pastures without piping, arable land or forest.
Źródło:: Landform Analysis; 2011, 17; 215-218
1429-799X
Pojawia się w:: Landform Analysis
Dostawca treści:: Biblioteka Nauki

Artykuł

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