삼림에서 임관에 (林冠) 의한 항우차단 (降雨遮斷) 손실에 관한 연구 (Ⅰ) = Study on Rainfall Interception Loss from Canopy in Forest (Ⅰ)

다국어 초록 (Multilingual Abstract)

To investigate the effects of forest stand and stony characteristics on interception loss from canopy trees, throughfall and stemflow under the canopy of a pine stand and a hardwood stand were measured during 4-month periods July to October, 1986 at the Kwanak Arboretum near Anyang, and the data were analysed by correlation and regression methods. The man results obtained from this study are sumrnerized as follows : 1. The overall throughfall collected during measurement period were 593.5㎜(76.7%) in the pine stand and 663.1㎜(81.8%) in the hardwood stand oui of total percipitation of 773.8㎜. Combined regression analysis describes the relation between total precipitation(P) and throughfall(T) in the pine stand as T=-1.8673+0.8320 P. in the hardwood stand as T=-8179-0.8805P. 2. and the sum of stemflow from measurement of total precipitation in the pine stand and the hardwood stand were 37.4㎜(4.8%) and 15.5㎜(2%) respectively. In total precipitation less than 2.5㎜, stemflow- were not measured in both the pine stand and the hardwood stand. Regression equations for the pine stand and the hardwood stand are S=-0.6155+0.0698P, S=-0.0497+0.0183P. The mean slope and intercept of the individual regression of stemflow on rainfall for each fewest stand indicate the proportion of the rain diverted to the trunks and trunk water capacity, respectively. 3. Interception loss accounted for 142.9㎜(18.5%) in the pine stand and 125.2㎜(16.2%), in the hardwood stand. 4. By quadratic predictive model of relation between interception loss and total incident rainfall, the extent of variance in interception loss explained was about 72% and 61% in the pine stand and the hardwood stand respectively.