闽北4种木兰科树种生长过程及其对气象因子的响应  

Growth process of 4 Magnoliaceae species and their responses to meteorological factors in Northern Fujian

作　　者：章允清 ZHANG Yunqing(Fujian Shunchang Pushang State-owned Forest Farm,Nanping,Fujian 353200,China)

机构地区：[1]福建省顺昌埔上国有林场,福建南平353200

出　　处：《亚热带农业研究》2023年第3期170-178,共9页Subtropical Agriculture Research

基　　金：中央财政林业科技推广示范项目“乳源木莲标准化示范区建设”(标准示范[2014]2号)。

摘　　要：[目的]比较闽北4种木兰科树种生长过程及其对气象因子的响应差异,为选择适宜该区种植的木兰科树种提供参考。[方法]调查了闽北17年生乐东拟单性木兰、黄山木兰、乳源木莲及深山含笑林分生长情况,采用树干解析法比较4种树种生长过程差异,并分析了树高、胸径和单株材积连年生长量与气象因子的相关性。[结果]随着林龄的增长,4种树种林分胸径、树高及单株材积总生长量均呈增长趋势。乐东拟单性木兰、黄山木兰、深山含笑、乳源木莲胸径平均生长量最大值分别出现在第10、第7、第9、第12年,胸径连年生长量最大值分别出现在第5、第3、第5、第6年,树高连年生长量最大值分别出现在第5、第4和第6、第3、第7年。4种树种胸径、树高连年生长量与年均气温、年相对湿度呈负相关,与年日照时数呈正相关;单株材积连年生长量与年均气温、年降水量、年相对湿度呈正相关。[结论]乐东拟单性木兰、深山含笑在闽北地区生长速度较快,适宜在该区种植推广。[Purpose]The study aimed to compare the growth process of 4 Magnoliaceae plants and their responses to meteorological factors,so as to provide reference for the selection of suitable Magnoliaceae cultivar grown in Northern Fujian.[Method]The growth of Parakmeria lotungensis,Magnolia cylindrica,Manglietia yuyuanensis and Michelia maudiae forests in Northern Fujian were monitored for 17 consecutive years via trunk analysis,and the correlation between current annual increment of growth indicators[tree height,diameter at breast height(DBH)and individual tree volume]and meteorological factors were also analyzed.[Result]The gross increments of DBH,tree height and individual volume of all Magnoliaceae species increased with forest age.For P.lotungensis,Magnolia cylindrica,Manglietia yuyuanensis and Michelia maudiae forests,the average increment of DBH was respectively maximized at the 10th,7th,9th and 12th year,the greatest current annual increments of DBH occurred at the 5th,3th,5th,and 6th year,and the maximum current annual increments of height were observed at the 5th,4th and 6th,3th,7th year.Current annual increments of DBH and height were negatively correlated with average annual temperature and average relative humidity,but positively correlated with annual sunshine duration.Current annual increment of individual volume was positively correlated with average annual temperature,precipitation and average relative humidity.[Conclusion]P.lotungensis and Michelia maudiae grew relatively faster,which were suitable to planted in Northern Fujian.

关 键 词：木兰科树种 树干解析 生长过程 气象因子 闽北 

分 类 号：S758.5[农业科学—森林经理学]