作　　者： ; ; ;

机构地区： 广东海洋大学农学院

出　　处： 《广东海洋大学学报》 2007年第1期84-88,共5页

摘　　要： 对特呈岛陆地成年乔木资源进行调查与分析,结果表明,特呈岛陆地的成年乔木:第一类(胸径≥20cm)共1584株,隶属26科41属51个树种,优势树种突出,其中百株以上的树种有4种;第二类(胸径≥20cm与树高≥6m)共1445株,其中大乔木1株、中乔木368株、乔木1076株;第三类(树龄≥80a)30株,其中有古树3种共23株及古树后续资源7株,有胸径≥100cm的大树14株;第四类有二级国家重点保护野生树种樟树32株。建议调整古树后续资源规定标准为树龄≥50a,以加强成年乔木保护。 The adult arbors become important resource of sound residential environment and ecotourism. The survey showed the land adult arbors on Techeng Isle as follows：The first category （DBH ≥20 cm） has 1584 plants,belonging to 26 family 41 genus 51 species,and 4 outstanding dominant tree species with more then 100 plants each;The second category（DBH≥20cm and H≥6 m）has 1445 plants making up of one big arbor and 368 middle arbors and 1076 small arbors; The third category（with age of 80 a or older）has 30plants, consisted of 23 plants ancient trees and 7 backup ancient trees belonging to 3 spceies, including 14 big trees with DBH over 100cm; The fourth category has 32 plants of Cinnamomum camphora as the second grade national key protective plants. Suggestions for updating the criterion of stipulating backup ancient trees and for strengthening conservation of adult arbors were proposed.

关 键 词： 成年乔木 古树 名木 资源 保护 特呈岛

领　　域： [农业科学] [农业科学]