摘要
地形因子对杉木及其伴生树种的影响 ,因树种而异。影响杉木优势度的首要因素为坡向和海拔 ,影响木荷的首要因素为坡度和坡形 ,而影响甜槠的首要因素为坡位和坡形。对同一立地因子而言 ,不同树种的适应性在其不同资源位上反应不一。因此 ,在杉木伴生树种选择时 ,要考虑到不同树种对地形、地貌的要求不一样。
The effects of topographical factors on the dominance of Chinese-fir and its associated tree species vary with tree species. The chief factors influencing Chinese-fir’s dominance are slope-face and altitude; those influencing S.superba’s dominance are slope-degree and slope-shape; those influencing C.eyrei’s dominance are slope-position and slope-shape. According to the same site factor, the adaptability of different species is different with different resource zones. So selecting Chinese-fir associated tree species, it should be taken into consideration that when the requirements on topography, physiognomy of different tree species are different.
出处
《江西农业大学学报》
CAS
CSCD
2000年第4期558-563,共6页
Acta Agriculturae Universitatis Jiangxiensis
基金
福建省科学技术委员会科学基金资助项目 !(97-Z - 2 19)
关键词
优势度
混交林
杉木
伴生树种
dominance
topographical factors
mixed forest
