thinning from below

网络释义

1.	下层抚育法杉木速生丰产林 ... 3.6 下层抚育法（ thinning from below） 3.7 郁闭度（ crown density） ... www.gzforestry.gov.cn
2.	下层疏伐 ... "上层疏伐"," Thinning from above" "下层疏伐"," Thinning from below" "下层疏伐"," Thinning in the lower story" ... www.guandang.com
3.	下层畩伐 50林学 -... ... 上层畩伐 Thinning from above 下层畩伐 Thinning from below 下层畩伐 Thinning in the lower story ... www.docstoc.com