检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:陈清远[1] Chen Qingyuan(Toyota State-Owned Forest Farm in Anxi,Anxi,Fujian,362416,China)
机构地区:[1]福建省安溪丰田国有林场,福建安溪362415
出 处:《绿色科技》2020年第3期125-126,130,共3页Journal of Green Science and Technology
摘 要:进行了青钱柳红豆杉混交林、纯林造林技术试验。经过3年经营管理,对林木生长量进行了调查,幼林林木生长良好。结果显示:青钱柳红豆杉混交林幼林林木生长量,比青钱柳、红豆杉纯林幼林林木树高大于2.89%、29.66%,平均胸径粗于17.07%、23.08%,平均树冠宽于6.02%、19.72%。This paper conducts an experiment on afforestation technology of mixed forest and pure forest of red bean fir.After 3a,the growth of forest was investigated,and the young forest grew well.The results showed that the growth of young trees in mixed forests of Taxus chinensis and Taxus chinensis was higher than that of pure forests of Taxus chinensis and Taxus chinensis by more than 2.89%and 29.66%.The average breast diameter was thicker than 17.07%and 23.08%,and the average crown width was 6.02%,19.72%.
分 类 号:S725.2[农业科学—林木遗传育种]
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:13.59.172.7