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http://dx.doi.org/10.13087/kosert.2013.16.1.099

Effects of Soil Covering Depth and Vegetation Base Materials on the Competition between Pinus densiflora Siebold & Zucc. and Lespedeza cyrtobotrya Miq. at Abandoned Coal Mine Land in Gangwon, Korea  

Yi, Koong (Division of Forest Soil and Water Conservation, Korea Forest Research Institute)
Lim, Joo-Hoon (Division of Forest Soil and Water Conservation, Korea Forest Research Institute)
Kim, Jeong-Hwan (Division of Forest Soil and Water Conservation, Korea Forest Research Institute)
Lee, Im-Kyun (Forest Policy Division, Korea Forest Service)
Jeong, Yong-Ho (Division of Forest Soil and Water Conservation, Korea Forest Research Institute)
Publication Information
Journal of the Korean Society of Environmental Restoration Technology / v.16, no.1, 2013 , pp. 99-107 More about this Journal
Abstract
This study was conducted to evaluate the effect of soil covering depth and vegetation base materials on the competition between Pinus densiflora Siebold & Zucc. and Lespedeza cyrtobotrya Miq., which were grown in an abandoned coal mine land for three years after seeding, by comparing their growth and stem density. The study site was consisted of sub-plots with four different soil covering depths (0cm, 10cm, 20cm, and 30cm) and four different compounds of vegetation base materials (peat moss (control), soil conditioner+peat moss (S+P), erosion control material+peat moss (E+P), and soil conditioner+erosion control material+peat moss (S+E+P)). Results of this study showed opposite pattern between P. densiflora and L. cyrtobotrya with different soil covering depth and compounds of vegetation base materials in general. P. densiflora showed the highest growth and stem density in plots with 10cm and 0cm depths of soil covering, respectively, while the lowest was shown in plots with 20cm depth of soil covering. In contrast, L. cyrtobotrya showed the highest growth and stem density in plots with 20cm depth of soil covering, while the lowest was shown in plots with 0cm depth of soil covering. In case of vegetation base materials, P. densiflora showed the highest growth and stem density in control plots and plots treated with S+P, respectively, while the lowest was shown in plots with S+E+P treatment. On the other hand, L. cyrtobotrya showed the highest growth and stem density in plots treated with S+E+P, while the lowest was shown in control plots. These results suggested the competition between two plants as a major cause of opposite patterns, which is induced by the suppressed growth and stem density of P. densiflora by fast growing L. cyrtobotrya. Despite the suppression of L. cyrtobotrya on P. densiflora, L. cyrtobotrya can play a positive role in improving soil quality, and thus it would be more desirable for restoring abandoned coal mine land to manage the growth of L. cyrtobotrya periodically, rather than eliminate them.
Keywords
phytorestoration; vegetation cover; mine wastes; soil conditioner; erosion control material;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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