Changes in soil’s chemical and biochemical properties induced by road geometry in the hyrcanian temperate forests
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Changes in soil’s chemical and biochemical properties induced by road geometry in the hyrcanian temperate forests. / Rahbarisisakht, Saeid; Moayeri, Mohammad Hadi; Hayati, Elyas; Sadeghi, Seyed Mohammad Moein; Kepfer-Rojas, Sebastian; Pahlavani, Mohammad Hadi; Schmidt, Inger Kappel; Borz, Stelian Alexandru.
I: Forests, Bind 12, Nr. 12, 1805, 2021.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Changes in soil’s chemical and biochemical properties induced by road geometry in the hyrcanian temperate forests
AU - Rahbarisisakht, Saeid
AU - Moayeri, Mohammad Hadi
AU - Hayati, Elyas
AU - Sadeghi, Seyed Mohammad Moein
AU - Kepfer-Rojas, Sebastian
AU - Pahlavani, Mohammad Hadi
AU - Schmidt, Inger Kappel
AU - Borz, Stelian Alexandru
N1 - Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021
Y1 - 2021
N2 - Forest roads play an important role in providing access to forest resources. However, they can significantly impact the adjacent soil and vegetation. This study aimed to evaluate the effects of road geometry (RG) on the chemical and biochemical properties of adjacent soils to assist in environmentally friendly forest road planning in mountainous areas. Litter layer, canopy cover, soil organic carbon (SOC) stock, total nitrogen (TN), the activity of dehydrogenase (DHA), and urease (UA) enzymes at a 0–20 cm soil depth were measured by sampling at various distances from the road edge to 100 m into the forest interior. The measurements were done for three road geometries (RG), namely straight, curved, and bent roads, to ensure data heterogeneity and to reflect the main geometric features of the forest roads. Analysis of variance (ANOVA) showed that the effects of RG on the measured variables were statistically significant. Spearman’s correlation test clearly showed a strong positive correlation between environmental conditions, SOC, TN, DHA, and UA for given RGs. Based on piecewise linear regression analysis, the down slope direction of the straight and the inside direction of bent roads accounted for the lowest and highest ranges of ecological effects, respectively. The results of this study contribute to our understanding of the environmental effects brought about by road geometry, which can be important for forest road managers when applying the best management practices.
AB - Forest roads play an important role in providing access to forest resources. However, they can significantly impact the adjacent soil and vegetation. This study aimed to evaluate the effects of road geometry (RG) on the chemical and biochemical properties of adjacent soils to assist in environmentally friendly forest road planning in mountainous areas. Litter layer, canopy cover, soil organic carbon (SOC) stock, total nitrogen (TN), the activity of dehydrogenase (DHA), and urease (UA) enzymes at a 0–20 cm soil depth were measured by sampling at various distances from the road edge to 100 m into the forest interior. The measurements were done for three road geometries (RG), namely straight, curved, and bent roads, to ensure data heterogeneity and to reflect the main geometric features of the forest roads. Analysis of variance (ANOVA) showed that the effects of RG on the measured variables were statistically significant. Spearman’s correlation test clearly showed a strong positive correlation between environmental conditions, SOC, TN, DHA, and UA for given RGs. Based on piecewise linear regression analysis, the down slope direction of the straight and the inside direction of bent roads accounted for the lowest and highest ranges of ecological effects, respectively. The results of this study contribute to our understanding of the environmental effects brought about by road geometry, which can be important for forest road managers when applying the best management practices.
KW - Biogeochemistry
KW - Enzyme
KW - Forest road
KW - Hyrcanian temperate forests
KW - Organic carbon
KW - Road-effect zone
KW - Soil
KW - Total nitrogen
U2 - 10.3390/f12121805
DO - 10.3390/f12121805
M3 - Journal article
AN - SCOPUS:85121597047
VL - 12
JO - Forests
JF - Forests
SN - 1999-4907
IS - 12
M1 - 1805
ER -
ID: 288851977