广西植物
廣西植物
엄서식물
GUIHAIA
2014年
2期
276-280,219
,共6页
年轮宽度%年轮指数%环境因子%喀斯特%团花新木姜子
年輪寬度%年輪指數%環境因子%喀斯特%糰花新木薑子
년륜관도%년륜지수%배경인자%객사특%단화신목강자
Tree-ring width%tree-ring index%environmental factors%karst%Neolitsea homilantha
树木年轮记录着树木生长过程中气候和环境因子的变化。该文采用树木年轮分析方法研究云南石林地区萌生生长的团花新木姜子树干年轮特征与环境因子之间的相互关系。结果表明:团花新木姜子萌生个体具有显著的差异性;其不同样树之间年轮宽度和年轮指数变化幅度较大,随着基径的增大,年轮指数与年轮宽度也逐渐增大;年轮指数与雨季降水呈正相关,而与干季降水和5、6、11和12月的温度呈负相关,但相关性均未达到显著水平。这表明退化迹地上萌生生长的团花新木姜子个体对降水和温度年间变化有较强适应能力和个体调节能力。
樹木年輪記錄著樹木生長過程中氣候和環境因子的變化。該文採用樹木年輪分析方法研究雲南石林地區萌生生長的糰花新木薑子樹榦年輪特徵與環境因子之間的相互關繫。結果錶明:糰花新木薑子萌生箇體具有顯著的差異性;其不同樣樹之間年輪寬度和年輪指數變化幅度較大,隨著基徑的增大,年輪指數與年輪寬度也逐漸增大;年輪指數與雨季降水呈正相關,而與榦季降水和5、6、11和12月的溫度呈負相關,但相關性均未達到顯著水平。這錶明退化跡地上萌生生長的糰花新木薑子箇體對降水和溫度年間變化有較彊適應能力和箇體調節能力。
수목년륜기록착수목생장과정중기후화배경인자적변화。해문채용수목년륜분석방법연구운남석임지구맹생생장적단화신목강자수간년륜특정여배경인자지간적상호관계。결과표명:단화신목강자맹생개체구유현저적차이성;기불동양수지간년륜관도화년륜지수변화폭도교대,수착기경적증대,년륜지수여년륜관도야축점증대;년륜지수여우계강수정정상관,이여간계강수화5、6、11화12월적온도정부상관,단상관성균미체도현저수평。저표명퇴화적지상맹생생장적단화신목강자개체대강수화온도년간변화유교강괄응능력화개체조절능력。
Tree-ring records changes of climate and environmental factors in the process of growth.Some plants can survive over the rocky desertification process own to their sprouting ability.Tree ring of Neolitsea homilantha in Shi-lin karst region.The relationship between sprouter growth and environment factors were investigated in Yunnan Province.The results were as follows:Individuals of N .homilantha was significantly different from each other;The ring width and ring index of N .homilantha had large variations between different sample trees,and the ring width and ring index were increased in association with basal diameter increases;The ring index of N .homilantha was pos-itively correlated with precipitation of the rain season,while it was negatively correlated with precipitation of the dry season,and it was also negatively correlated with temperature of May,June,November and December.But all of the relationships were not statistically significant.These results indicated that the sprouters of N .homilantha had high capability to adapt to the rain and temperature variation,and thus tenaciously survive in the rocky desertification area.