한국농림기상학회지, 제 5권 제1호(2003) (pISSN 1229-5671, eISSN 2288-1859)
Korean Journal of Agricultural and Forest Meteorology, Vol. 5, No. 1, (2003), pp. 24~29
ⓒ Author(s) 2014. CC Attribution 3.0 License.


산립을 통과한 강우의 pH 및 화학적 조성의 변화

주영특(1), 김홍률(2), 이상덕(1)
(1)강원대학교 산림과학대학 삼림자원학부, (2)경희대학교 생명과학부

(2002년 12월 20일 접수; 2003년 03월 04일 수락)

Changes to the pH and Chemical Composition of the Precipitation
inside the Pinus densiflora and Pinus rigida Stands

Yeong-Teuk Joo(1), Hong-Ryul Kim(2), Sang-Deok Lee(1)
(1)Division of Forest Resources, Kangwon National University, Chunchon 220-701, Korea
(2)College of Life Science, Kyunghee University, Yongin 449-701, Korea

(Received December 20, 2002; Accepted March 04, 2003)

ABSTRACT
This study was conducted to investigate vertical movement properties of precipitation passing forest stands (Pinus densiflora and Pinus rigida stands) in Chunchon, Kangwon-do. The results were as follows: The pH range of precipitation was 4.08∼7.08, and the average pH showed 6.2±0.7. The average pH of the Pinus densiflora stand showed that the stemflow was 5.9±0.9, and the throughfall was 6.0±0.8. The pH value of stemflow and throughfall in the Pinus rigida stand was lower than for the Pinus densiflora stand. Changes of the cation concentrations in two different stands, Ca2+, increased more than the Mg2+, K+, and Na+ ions. Anions, SO42- and NO3- increased more than Cl-. Leaching and washout for each species differed by precipitation and influence of tree organs (crown, branch, stem, etc.).etc.).

Keyword: precipitation, Pinus densiflora, Pinus rigida, chemical composition, stemflow, throughfall

MAIN

적요

강우가 산립을 통과하면서 변화하는 화학적 조성을 알아보기 위하여 강원도 춘천지역의 소나무와 리기다소나무 임분에서 임외우와 수관통과우, 수간류를 채취하여 pH 및 용존원소를 중심으로 한 화학적 조성의 수직적인 이동특성을 구명하그자 수행한 본 연구의 결과를 요약하면 다음과 같다.
임외우의 pH의 범위는 4.1~7.1 이었으며, 평균 pH 는 6.2±0.7 로 나타났다. 소나무 임분의 경우는 수간류가 평균 pH 5.9±0.9 이었으며, 수관통과우는 pH 6.0±0.8로 측정되었다. 리기다 소나무 임분의 경우는 수간류가 pH 5.5±0.6, 수관통과우는 pH 5.8±0.7의 평균값이 측정되었다. 강우량에 따른 임외우와 임내우 (수간류, 수관통과우)의 pH 변화는 전체적으로 강우량이 적은 경우에 pH 값이 넓게 분포하였으나, 강우량 이 증가함에 따라 점차 감소하거나 증가하여서 안정화 되는 것을 알 수 있었다.
임외우와 소나무와 리기다 소나무의 수관통과우, 수간류에서 측정한 화학적 조성의 농도 변화는 양이온 중에서는 Ca2+의 농도 변화가 가장 크게 나타났으며, 음이온에서는 Cl을 제외한 나머지 SO42−와 NO3에서 임외우보다 현저하게 이온 농도가 증가하거나 변화 하는 것을 볼 수 있었다. 이와 같은 결과로 볼 때, 강우에 의한 수목의 용탈과 세정의 차이가 있으며, 이는 수목의 각 기관을 통과하면서 그 차이가 있다는 것을 알 수 있다.

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