deciduous leaf

基本解釋

Winter drought rest period is normal deciduous leaf .
冬季干旱休眠期正常落葉。
Configuration feature: For lofty deciduous leaf arbor, the bark of grown tree has the phellem layer that develop.
形態(tài)特征：為高大的落葉喬木，成年樹的樹皮有發(fā)達(dá)的木栓層。
In the deciduous broad leaf forest areas of less drying layer in south beyond Yan an, measures of combining grasses, shrubbery with trees should be taken to recover forest vegetation.
在以往劃分的延安以南的落葉闊葉林帶，土壤干層發(fā)育較輕，可采取草、灌、喬木相結(jié)合的措施逐步恢復(fù)森林植被。