广东林业科技
廣東林業科技
엄동임업과기
FORESTRY SCIENCE AND TECHNOLOGY OF GUANGDONG PROVINCE
2015年
2期
22-27
,共6页
朱臻荣%刘庆云%刘悦%段海龙%许丽萍
硃臻榮%劉慶雲%劉悅%段海龍%許麗萍
주진영%류경운%류열%단해룡%허려평
七叶莲%野生资源%分布
七葉蓮%野生資源%分佈
칠협련%야생자원%분포
Schefflera venulosa%wild resource%distribution
在全面调查普洱市七叶莲野生资源地理分布基础上,采用主成分分析法研究七叶莲野生资源地理分布与气候、地形之间的关系,并对海拔与七叶莲枝叶总皂甙含量做相关性分析。调查结果表明:七叶莲野生资源在普洱全市均有分布,在喀斯特地貌区域分布尤为集中,其水平分布范围为99°20′11″E~101°55′04″E,22°18′20″N~24°17′58″N,垂直分布范围为海拔500~1900 m。经主成分分析表明,影响七叶莲地理分布的主要水热指标的排序为湿度因子>热量因子>降水因子;相关分析结果表明,七叶莲所分布的海拔与其林木枝叶总皂甙的含量具负相关关系,其相关系数为-0.948,最高海拔(1460 m)与最低海拔(1006 m)的七叶莲枝叶总皂甙含量比为1.0∶1.5。
在全麵調查普洱市七葉蓮野生資源地理分佈基礎上,採用主成分分析法研究七葉蓮野生資源地理分佈與氣候、地形之間的關繫,併對海拔與七葉蓮枝葉總皂甙含量做相關性分析。調查結果錶明:七葉蓮野生資源在普洱全市均有分佈,在喀斯特地貌區域分佈尤為集中,其水平分佈範圍為99°20′11″E~101°55′04″E,22°18′20″N~24°17′58″N,垂直分佈範圍為海拔500~1900 m。經主成分分析錶明,影響七葉蓮地理分佈的主要水熱指標的排序為濕度因子>熱量因子>降水因子;相關分析結果錶明,七葉蓮所分佈的海拔與其林木枝葉總皂甙的含量具負相關關繫,其相關繫數為-0.948,最高海拔(1460 m)與最低海拔(1006 m)的七葉蓮枝葉總皂甙含量比為1.0∶1.5。
재전면조사보이시칠협련야생자원지리분포기출상,채용주성분분석법연구칠협련야생자원지리분포여기후、지형지간적관계,병대해발여칠협련지협총조대함량주상관성분석。조사결과표명:칠협련야생자원재보이전시균유분포,재객사특지모구역분포우위집중,기수평분포범위위99°20′11″E~101°55′04″E,22°18′20″N~24°17′58″N,수직분포범위위해발500~1900 m。경주성분분석표명,영향칠협련지리분포적주요수열지표적배서위습도인자>열량인자>강수인자;상관분석결과표명,칠협련소분포적해발여기림목지협총조대적함량구부상관관계,기상관계수위-0.948,최고해발(1460 m)여최저해발(1006 m)적칠협련지협총조대함량비위1.0∶1.5。
Based on a comprehensive survey of the geographical distribution wild resources ofSchefflera venulosa in Pu’er city , this paper, through the PCA method and the correlation analysis, studied the relationship among geographic distribution, climate and topography, and also discussed the correlation between the altitude and total saponins content ofSchefflera venulosa. The results showed that, the wild resources ofS. venulosa located in Pu’er city, the horizontal distribution in 99°20′11″~101°55′04″E, and vertical distribution range of 500~1 900 meters. Meanwhile, the principal component analysis showed that the main water heat index which affected the geographical distribution wild resources of Puer cityS. venulosa, of indicators was humidity factor> heat factor > precipitation factor . The correlation analysis results also showed that the altitude distribution and its total saponin content of tree branches and leaves had negative correlation, its correlation coefficient is-0.948, the content ratio of total saponin from Schefflera venulosa leaves between the highest altitude(1 460 m)and the minimum altitude(1 006 m)is 1.0∶1.5.