The abundance of free organic matter (L[F.sub.fr]), is more than 2.4 times higher in forest soil
, relative to arable soil.
This lack of attention to soils has been generally due to limited data on forest soil
carbon and lack of clarity regarding what actions landowners can take to positively or negatively impact this carbon pool.
It also works on the improvement of the protection of forest soil
, water preservation, a clean environment, sanitarian and hygienic actions, preservation of species of animals in the forests, ensuring biodiversity, the establishment of cultural, scientific and recreational complexes throughout nature, as well as the protection and expansion of the gene pool in the growth of forest seed.
was used as reference of quality, superior to the cultivated soil.
The forest soil
was a sandy, glacial-till Haplic Podzol (FAO 2006) with a C: N ratio of 46 and a pH ([H.sub.2]O) of 3.8 (Table 3).
The physico-chemical properties of study site (Table-1) showed higher organic matter in forest soil
and lower in cultivated.
During the years (2008-2010) the DHA activity of oak forest soil
were 10.7, 12.7 and 9.9 [micro]g TPF [g.sup.-1] soil [h.sup.-1] and Pine forest soil
were 6.4, 7.2 and 6 [micro]g TPF [g.sup.-1] soil [h.sup.-1] respectively.
The FDMs showed that different soil chemical and grain size features were sufficient to distinguish significantly the forest soil
ages in the four chronosequences of the SPE.
The degree to which a forest soil
is compacted by mechanized logging depends on several variables and characteristics, typical of the forest site (soil texture, soil organic matter content, slope), season (soil water content, soil temperature) or the harvesting activity itself (machine type, machine mass, traffic intensity) (Ampoorter et al., 2010; Naghdi and Solgi, 2014).
In fact, soils often are enriched by fires - both ash and charcoal add to forest soil
layers, while bacteria and nitrogen- fixing plants increase significantly after fires and contribute to soil fertility.
In forest soil
, caoilinite was abundant (42%), followed by mica and montmorillonite with 20% and 17%.
In this study, we investigated the thermal characteristics of forest soil
at a site in the Haean basin of Korea.