摘要
在低丘红壤上，自然植被破坏殆尽，水土流失严重，土壤粘重板结，伏秋高温干旱，恢复植被困难．采用50×50cm的沟状整地，可加深活土层的厚度，提高土壤的蓄水、透气和抗旱能力，防止容器效应，使造林成活率从过去的40％提高到97．3％，生长量大幅度地提高．9年生的林木，平均每ha蓄积量75m3；用良种苗造林，平均蓄积量达105m3，经济效益显著，经定位观测表明，低丘红壤上的人工林对小气候的调节、防止水土流失和增加养分的积累等生态效益也非常显著。
The experiment of man-made forest was conducted on red earth slope land. It was shown thatthe soil depth was increased and the soil water storage and the drought-resistance were enhanced byman-made forest. The planted forest with a furrow increased survival rate of trees from 40% to 97.3%.Significant econormic benefit and ecological effeet are acquired from it. The man-made forest improvedmicro-climate and soil fertility, prevented water and soil runoffloss.
出处
《浙江农业学报》
CSCD
1995年第3期234-237,共4页
Acta Agriculturae Zhejiangensis
关键词
低丘
红壤
人工林
经济效益
生态效益
Low hill
Red earth
Man-made forest
Economic benefit
Ecological effect
