Strengthen young forest cradle management , strict according to cradle cut regulations , fixed rotate carries out exercise 加强幼林的抚育治理，严格按照抚育采伐规程，定期轮换实施作业。
Better fostering and managing the existing forests is very important to have more forest biomass and better environmental effect that regional forests offered 随着珠江三角洲区域中、幼林不断发育成熟，区域森林的生物量将不断增加，其环境效应也将不断增强。
The growth of fine provenance families in guangdong and guangxi in the young forest period was widely superior to that of the control , the relatively big differences existed among and inside the provenance families 两广优良种源家系幼林期生长普遍优于对照，种源家系间和家系内存在着较大差异。
Should strengthen right young forest protection , young forest protective period is controlled 10 years commonly , this period can use drive to avoid agent , agent or machinery catch of all kinds raticide kill 要加强对幼林的保护，幼林保护期一般10年左右，此期可使用驱避剂，各类杀鼠药剂或机械捕杀。
He saw the whippers - in in their red caps galloping along the edge of the overgrown ravine ; he could see the dogs even , and was every instant expecting the fox to come into sight on the further side among the green corn 他看见几个头戴红帽子的看守猎犬的猎人沿着长满幼林的峡谷边沿疾驰，甚至还看见猎犬，他时刻等待狐狸从那边的绿荫中出现。
Article 17 water and soil conservation measures must be adopted to prevent soil erosion when preparations for afforestation , tending of young growth , and cultivation of commodity trees such as oil - tea camellia and tung tree are done on hillsides with a slope of above 5 degrees 第十七条在五度以上坡地上整地造林，抚育幼林，垦复油茶、油桐等经济林木，必须采取水土保持措施，防止水土流失。
Young forest suffer rat the most easily to kill , begin from afforestation , answer to consider to prevent the measure that rat kills from integrated processing angle , basically be : according to place sort harmful rat is reached to harm the law , the tree that chooses to suffer rat not easily to kill is planted 幼林最易遭受鼠害，从造林开始，就应从综合治理角度来考虑预防鼠害的措施，主要是：根据当地害鼠种类及为害规律，选择不易遭受鼠害的树种。
Heilongjiang saves the experiment of institute of science of the forestry that bring mountain range to make clear , in cradle and clear when forest land , cradle the part the branch authority below is lain between wide calm distance piles up between forest , let rat kind gnaw bite , can remove protection effectively young forest action 黑龙江省带岭林业科学研究所的实验表明，在抚育和清理林地时，将部分抚育下的枝权隔广定距离堆放在林木之间，让鼠类啃咬，可有效地起到保护幼林的作用
The results showed the trend of soil ifi changes was partial " u " , namely , during the course of artificial picea succession , soil ifi decreased sharply at the initial stage , after artificial picea reaches mature forest , soil ifi recovered slowly and reached soil ifi of natural coniferous forest finally 在人工云杉林地中，土壤ifi表现出非正“ u ”型的变化，即云杉幼林向成熟林演替时，土壤ifi迅速下降，大约在云杉40龄出现自疏之后，土壤ifi回升，但恢复速度十分缓慢。
In cradle while cut down divides low - grade forest , notice to do authority of nice area branch and low layer vegetation clear the job , can reduce rat already kind concealment place , destroy mouse kind live condition , reduce rat kind density , can reduce miscellaneous bush to wait again at the same time right young forest competition , those who be helpful for forest is hale grow and shift to an earlier date closing cheng lin , the forest land after yu ren is shut goes against rat kind habitat , can rise to control rat to feel the effect that produces greatly 在抚育伐除劣等林木的同时，注重做好地面枝权及低层植被的清理工作，既可减少鼠类的隐蔽场所，破坏鼠类生存条件、降低鼠类密度，同时又能减少杂灌木等对幼林的竞争，有利于林木的健壮生长和提前郁闭成林，郁人闭后的林地不利于鼠类栖息，可以起到控制鼠害大发生的作用。
