CAJ | 학술논문

在山西芦芽山林线附近,应用树干径向变化记录仪(Dendrometer)测量了6株白杄树干的径向生长过程,同步监测环境因子.观测期分为两个阶段,分别是7月15日～8月7日(夏季期),9月5日～10月9日(秋季期).结果表明:(1) 白杄树干径向变化在晴好天气呈现出有规律地波动式上升,在阴雨天气下则表现为持续上升,降雨结束后迅速下降;(2) 树干径向生长生长曲线在两个阶段都呈二次曲线形式,在夏季期内树干径向生长为正,在秋季期初始阶段为负在9月中旬后逐渐变为0.(3)在两个观测期内的非降雨期内,树干径向变化与空气温度负相关,与空气相对湿度、土壤含水量、土壤水势正相关与土壤温度相关关系在两个时期内不同;在两个观测期内的降雨时段内,树干径向变化与环境因子的相关关系均不同.(4) 距离分析结果表明,在秋季期内,温暖湿润的环境适宜白杄的生长,在夏季期内,湿润环境有利于白杄的生长.
재산서호아산림선부근,응용수간경향변화기록의(Dendrometer)측량료6주백천수간적경향생장과정,동보감측배경인자.관측기분위량개계단,분별시7월15일～8월7일(하계기),9월5일～10월9일(추계기).결과표명:(1) 백천수간경향변화재청호천기정현출유규률지파동식상승,재음우천기하칙표현위지속상승,강우결속후신속하강;(2) 수간경향생장생장곡선재량개계단도정이차곡선형식,재하계기내수간경향생장위정,재추계기초시계단위부재9월중순후축점변위0.(3)재량개관측기내적비강우기내,수간경향변화여공기온도부상관,여공기상대습도、토양함수량、토양수세정상관여토양온도상관관계재량개시기내불동;재량개관측기내적강우시단내,수간경향변화여배경인자적상관관계균불동.(4) 거리분석결과표명,재추계기내,온난습윤적배경괄의백천적생장,재하계기내,습윤배경유리우백천적생장.
The Stem radius variation (SRV) was measured by dendrometer from six sample trees of Picea meyeri at the tree-line of Luya Mountain, North China, combined with synchronized instrumental observation and measurement of habitat temperature, moisture, etc., from July 15~(th) to the August 7~(th) (summer phase) and from September 5~(th) to October 9~(th) (autumn phase) in 2007. The preliminary analytic results were as follows: (1) the diameter of stems varied on sunny days with a daily fluctuation but steadily widened, while on rainy days it continuously increased during the rain but shrinked rapidly after the rain. (2) The Stem radial increment(SRI) pattern in both phase, was fitted with a conic curve pattern, The SRI was shown a positive value in the summer phase, whereas in the autumn phase, it was turned out to be a negative figure first in early September but then kept as a zero constantly from the middle September on. (3) In no rain stage of both of these phase, the stem radius variation (SRV) was negatively correlated with air temperature and positively correlated with relative humidity (RH), soil moisture and soil water potential. Correlations between SRI and soil temperature were different. Daily stem fluctuation rhythm broken by precipitation correlations of soil temperature and other factors were different in rainy phase of both phases. (4) Through distance analysis, we found that a relative warmer and moister environment was suitable in autumn phase, and high RH and soil moisture was suitable for the growth of Picea meyeri in summer phase.