Variation in Growth Characteristics of Pinus densiflora S. et Z. at Eight Experimental Plantations of Korea

8개(個) 시험지(試驗紙)에서 소나무 산지별(山地別) 생장특성(生長特性) 변이(變異)

  • Kim, Kyu Sick (Forest Genetics Research Institute, Forestry Administration) ;
  • Han, Young Chang (Forest Genetics Research Institute, Forestry Administration)
  • Received : 1996.06.24
  • Published : 1997.06.30

Abstract

Japanese red pines growing along the Taebaek mountains have been called "Kangsong" and considered to be superior in growth and wood quality. An attempt was made to determine whether their boundaries for planting may be expanded by testing their early growth at eight experimental plantations of the Republic of Korea. Seeds were collected from the six different natural populations including Uljin in Kyongbuk province. For the provenance test, they were planted in eight different regions including Taean in the spring of 1987. Experimental planting was a randomized complete block design with 3 replications. Height growth was measured at the ages of 2, 4, and 6 after planting, and the diameter at root collar at the age of 6 after planting. Significant variation in height growth was observed among the plantations. The height growth measured at the age of 6 after planting showed a positive correlation with the latitude of the test plantation, and the contents of phosphate, potassium and calcium in the soil. A negative correlation, however, was observed between the longitude of the test plantation and height growth. Ponghwa provenance appeared to be the best among the provenances in that the trees from the area grew 16% better in volume growth than the average of all the trees tested in the study, while the worst one was Kyongju from which trees grew 11% less than the average.

본 연구(硏究)는 태백산맥(太白山脈) 주위(周圍)에 분포(分布)하는 형질(形質)이 우수(優秀)한 소나무를 전국적(全國的)으로 확대(擴大) 조림(造林)할 수 있는 가능성(可能性)을 알아보기 위하여 수행(遂行)하였다. 경북(慶北) 천진(薦珍) 등(等) 6개(個) 천영임분(天然林分)에서 채종(採種)된 종자(種子)를 양묘(養苗)하여 1987년(年) 4월(月) 충남(忠南) 태안(泰安) 등(等) 8개(個) 지역(地域)에 1-1묘(苗)를 난괴법(亂塊法) 3반복(反復)으로 식재(植栽)하였다. 생장조사(生長調査)는 식재(植栽) 후(後) 2, 4년생(年生)일때 수고생장(樹高生長)을, 6년생(年生)일 때 수고(樹高)와 근원경(根元徑)을 조사(調査)하였다. 식재(植栽) 후(後) 2, 4, 6년생(年生)의 수고생장(樹高生長)은 시험간(試驗地間)에 많은 차이(差異)가 있었고, 6년생(年生) 수고생장(樹高生長)과 시험지(試驗地)의 위도(緯度), 토양중(土壤中)의 치환성(置換性) 인산, 칼륨, 칼슘함량(含量)과는 정(正)의 상관관계(相關關係)가 있었으며 경도(經度), 표고(標高)와는 부(負)의 상관관계(相關關係)가 있었다. 또한 수고생장(樹高生長)은 산지간(産地間)에 많은 차이(差異)를 보였으며, 6년생(年生) 수고생장(樹高生長)이 가장 우수(優秀)한 봉화산(奉化産)은 전(全) 산지(産地) 평균(平均)보다 16% 더 좋은 생장(生長)을 하였고, 가장 저조(低調)한 경주산(慶州産)은 전(全) 산지(産地) 평균(平均)보다 11% 더 저조(低調)한 생장(生長)을 하였으며, 소나무 산지간(産地間) 생장(生長) 양상의 차이(差異)가 있어 태백산맥(太白山脈) 주위(周圍)에 분포(分布)하는 형질(形質)이 우수(優秀)한 소나무, 일명 강송(剛松)을 전(全) 지역(地域)에 식재(植栽)할 수 있다는 가능성을 보였다.

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