TITLE:
The Growth Pattern of Chamaecyparis obtuse Stand along Longevity in Gyeongnam Province, South Korea
AUTHORS:
Moon Hyun Shik, Tamirat Solomon
KEYWORDS:
Growth Pattern, Soil Properties, Longevity, Climate Change, Growth Rings
JOURNAL NAME:
Open Journal of Forestry,
Vol.10 No.4,
September
14,
2020
ABSTRACT: Tree growth is affected by environmental factors,
climate condition and tree age. The objective of this study was to evaluate the
growth patterns of Chamaecyparis obtusa (C. obtusa) stand in the
Gyeongnam province. Data was collected from two cities and one county by using
sample quadrats of 20 * 20 m. A total of 11 quadrats were used to collect tree
height, diameter at the breast height (DBH), annual growth rings and soil data.
The data analysis of soil moisture content, pH, organic matter (%), EC (cmol + /kg
of soil), and available phosphorous was conducted. Growth ring was analyzed by
using computer based software and the ages of the trees were identified.
Average growth of height and DBH was computed from the surveyed data and annual
growth of each tree was assessed by computer based reading of annual growth
rings. The results of the study revealed that tree growth showed a reducing
trend along the longevity. It was identified that soil pH, age, variation in
annual average temperature, and altitude were the main factors related with
growth of C. obtusa trees along the life of the stand.