경상남도 밤나무임지의 지역별 토양특성

Abstract

This study was carried out to evaluate soil properties by regions from chestnut (Castanea crenatasamples of top 20 cm collected from three hillslopes (upper, midle, lower) of the chestnut stands in six regions(Jinjusi, Sacheonsi, Sancheongun, Hadonggun, Goseonggun, Hapcheongun) where are major chestnut cultivationareas throughout the province. Soil properties were significantly different among regions (p<0.05), while werenot significantly diferent among hilslopes (p>0.05). Soil bulk density, soil pore space, soil pH, organic matercontent, total nitrogen, available phosphorus, and CEC were significantly diferent among regions (p<0.05). Soilbulk density was significantly lower (p<0.05) in Hadonggun (0.96 g/cm3) than in other regions (1.12~1.2 g/cm3). Soil pH was below pH 5.03 in most regions and Sancheonggun showed the lowest soil pH value (pHhighest in Hadonggun (6.46%), while other regions ranged between 2.93% and 3.47%. Total nitrogen contentshowed a similar trend like the organic matter content. Available phosphorus was above 100 ppm in Jinjusi,Hadonggun and Sancheonggun, but Sacheonsi showed the lowest concentration (15 ppm) among the regions.Cation Exchange Capacity (CEC) was above 10 cmolc/kg in Goseonggun and Hadonggun, but below 8.6 cmolc/kg in Jinjusi and Hapcheongun. Potasium content ranged between 0.07 and 0.14 cmolc/kg, and magnesium wasabove 0.66 cmolc/kg in all regions. The results indicate that soil property in chestnut stands was diferent among90 ...... . 96 . . 1 . (2007)regions in Gyeongnam province. This suggested that the chestnut stands should be managed by the fertilizationapplication reflected in the variability of regional soil property in chestnut stands.