CAJ | 학술논문

通过访谈、查阅文献资料与实地调查，对云南省腾冲县古银杏资源的分布、数量及结构特征进行分析。结果显示，腾冲县共有古银杏3000余株，分布在界头乡和固东镇；其中107株古银杏有生长指标，雌株占94.34％；树高最大为30.0 m，最小为9.5 m；树龄最长为610年；胸径最大为3.08 m；平均冠幅最大为18.8 m。垂乳银杏有82株，单株垂乳个数最多为78个，垂乳最长达0.70 m；复干银杏有56株，单株复干数最多为15株，复干胸径最大为0.95 m；叶籽银杏有4株。
통과방담、사열문헌자료여실지조사，대운남성등충현고은행자원적분포、수량급결구특정진행분석。결과현시，등충현공유고은행3000여주，분포재계두향화고동진；기중107주고은행유생장지표，자주점94.34％；수고최대위30.0 m，최소위9.5 m；수령최장위610년；흉경최대위3.08 m；평균관폭최대위18.8 m。수유은행유82주，단주수유개수최다위78개，수유최장체0.70 m；복간은행유56주，단주복간수최다위15주，복간흉경최대위0.95 m；협자은행유4주。
The distribution , quantity and structural characteristics of the ancient ginkgo in Tengchong County of Yunnan Province were analyzed , through interview , literature review and field investigation .The results showed that there were more than 3 000 ancient trees of Ginkgo biloba distributed in Tengchong county , especially in Jietou township and Gudong township .There were 107 ancient ginkgo trees with growth indexes , and among which , fe-male trees accounted for 94.34 %. The highest and shortest tree was 30.0 m and 9.5 m in height respectively . The oldest tree was 610 years.The maximum DBH was 3.08 m.The maximum average crown was up to 18.8 m. There were 82 chichi ginkgo trees , and among with the maximum number of chichies was 78 of the single plant and the biggest chichi was as long as 0.70 m.There were 56 mult-trunk ginkgoes , and among which the maximum number of mult-trunks was 15 of the single plant and the DBH of the biggest mult-trunk was 0.95 m.There were 4 of Ginkgo biloba var.epiphylla trees.