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Fertilization Effects on Soil Properties, Understory Vegetation Structure and Growth of Pinus densiflora Seedlings Planted after Forest Fires  

Won, Hyung-kyu (Korea Forest Research institute)
Lee, Yoon Young (Korea Forest Research institute)
Jeong, Jin-Hyun (Korea Forest Research institute)
Koo, Kyo-Sang (Korea Forest Research institute)
Lee, Choong-Hwa (Korea Forest Research institute)
Lee, Seung-Woo (Korea Forest Research institute)
Jeong, Yong-Ho (Korea Forest Research institute)
Kim, Choonsig (Department of Forest Resources, Jinju National University)
Kim, Hyungho (Korea Forest Research institute)
Publication Information
Journal of Korean Society of Forest Science / v.95, no.3, 2006 , pp. 334-341 More about this Journal
Abstract
This study was to investigate the growth of planted red pine (Pinus densiflora S. et. Z.) seedling, soil properties and understory vegetation structure after fertilizer treatments [unfertilized plot (control), CF plot (Combination Fertilizer), UF plot (Urea Formaldehyde Fertilizer)] in a Pinus densiflora stand planted after the forest fires in Gosung, Gangwon province. The height growth rates of seedlings in four years were 264% in unfertilized, 404% in CF, and 388% in UF plots, respectively. The root collar diameters were increased 340% in unfertilized, 454% in CF, and 427% in UF plots, respectively. No significant changes occurred in soil total nitrogen and potassium ion ($K^+$) with the fertilization. However, available $P_2O_5$, content in the soil surface (0-15 cm) increased with the fertilizer application. Soil organic matter increased significantly with fertilizer treatments, while gradual decrease occurred in unfertilized plots. Sodium ion ($Na^-$) decreased in all sites. Soil pH, CEC, calcium ion ($Ca^{2+}$) and magnesium ion ($Mg^{2+}$) contents were not significantly different among treatments. Although Shannon's species diversity index and species richness in understory vegetation did not change with fertilizer treatments, vegetation cover rates in forest floor increased significantly with the fertilization. These results suggest that the increase of pine seedling growth and vegetation cover rates with fertilization could enhance soil stabilization in forest tire areas.
Keywords
fertilization; forest fire; soil properties; species diversity; Pinus densiflora;
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Times Cited By KSCI : 2  (Citation Analysis)
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