CAJ | 학술논문

对冀北山地杨桦次生林五角枫更新幼苗种群结构进行了研究，分析了五角枫幼苗种群的径级结构、高度结构、时间序列预测以及点格局。结果表明，五角枫更新苗总株数为1094株/hm2，五角枫更新苗径级主要集中在0．5～2cm之间，占总株数的73．31％。其高度主要集中在0．5～2．5m，占总株数的81．81％。Ⅱ径级、Ⅳ径级和Ⅵ径级后，五角枫更新苗株数分别下降了5％，40％和83％，表明五角枫更新幼苗小径阶种群仍然保持较多的个体，五角枫种群保持相对的稳定性。五角枫更新幼苗在0～13 m范围内呈聚集分布，在14～16 m范围内呈随机分布，在17～25 m范围内呈均匀分布。适当间伐五角枫更新幼苗对杨桦次生林结构优化和功能发挥具有重要意义。
대기북산지양화차생림오각풍경신유묘충군결구진행료연구，분석료오각풍유묘충군적경급결구、고도결구、시간서렬예측이급점격국。결과표명，오각풍경신묘총주수위1094주/hm2，오각풍경신묘경급주요집중재0．5～2cm지간，점총주수적73．31％。기고도주요집중재0．5～2．5m，점총주수적81．81％。Ⅱ경급、Ⅳ경급화Ⅵ경급후，오각풍경신묘주수분별하강료5％，40％화83％，표명오각풍경신유묘소경계충군잉연보지교다적개체，오각풍충군보지상대적은정성。오각풍경신유묘재0～13 m범위내정취집분포，재14～16 m범위내정수궤분포，재17～25 m범위내정균균분포。괄당간벌오각풍경신유묘대양화차생림결구우화화공능발휘구유중요의의。
The structure population of renewed Acer mono seedlings in secondary poplar-birth forest in Northern Hebei mountain was researched systematically with its diameter class , height class ,time sequence ,and point pattern analyzed .The results showed that the total plant number of renewed Acer mono seedling was 1 094/hm2 ,and its diameter class between 0 .5 cm and 2 cm ,accounted for 73 .31% of the total number of trees ,with its height class between 0 .5 cm and 2 .5 cm accounting for 81 .81% of the total number of trees .Time se-quence prediction model for renewed Acer mono seedling populations after Ⅱ ,Ⅳ and Ⅵ di-ameter calss indicated 5% ,40% and 83% decline in regeneration seedling number respective-ly .Small population remains larger number ,which showed Acer mono seedlings were re-newed stably .Renewed Acer mono seedlings in the range of 0~13 m was in an aggregated distribution ,with its random distribution in 14~16 m ,and its uniform distribution in 17~25 m .Therefore ,it is of great significance to proper intermediate cutting the renewed Acer mono seedlings for the optimization of its structure and function .