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Characteristics of Water Relation Parameters for Pinus densiflora at Different Aspects in Central South Korea  

신만용 (국민대학교 산림자원학과)
정동준 (경희대학교 생명과학대학 생태시스템공학)
신창섭 (충북대학교 산림자원학과)
Publication Information
Korean Journal of Agricultural and Forest Meteorology / v.6, no.1, 2004 , pp. 18-23 More about this Journal
Abstract
This study was conducted to provide a national forest management method for natural Pinus densiflora forest stands in central South Korea based on growth characteristics and water relations. Average stand volume per hectare was 259.3㎥ in the pine study site. Basal area, volume, annual mean increment and periodic annual increment of DBH for 10 years at each slope aspect appeared to decrease as the aspect shifts from north to south. Stems per hectare showed the lowest value at the northern aspect. Maximum water potentials measured between 12 and 14 o'clock were analyzed by aspect and elevation. Water potential of pine decreased as the aspect changed from north to south, and water potential increased at lower elevations. Soil water content for the pine stands tended to decrease as the aspect shifted from north to south. Water potential and soil moisture content were highly correlated. Soil water deficits indicate that pines have a higher moisture requirement on the ridge and the southern aspect.
Keywords
environmental factors; growth; Pinus densiflora; pressure chamber; water potential;
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