摘要
本文以广西国有雅长林场12年生西南桦人工林为研究对象,通过树干解析,确定各树龄时的树高和胸径以及连年生长量和平均生长量,找出其在该区域西南桦人工林的生长规律。研究结果表明:西南桦人工林树高、胸径的总生长量都是伴随着西南桦年树龄的增长而增加,到第12年时西南桦单株的胸径总生长量达到最高为15.6 cm、树高总生长量也达到最高为16.8 m。
Taking the 12 year old Betulaalnoides plantation of Guangxi state owned Ya Chang Forest farm as the research object through trunk analysis. The article determined the age of tree height and diameter at breast height （DBH） and years of growth quantity and average growth, found that growth of Betulaalnoides plantation in the region. The results of the study show that ： Betulaalnoides artificial tree height, diameter at breast height （DBH） total growth is accompanied by the growth of Betulaalnoides in age and increased to 12 years southwest birch plant growth of breast diameter reached highest for 15.6 cm, tree high total growth quantity has reached 16.8 m, the highest.
出处
《林业科技情报》
2016年第1期7-10,共4页
Forestry Science and Technology Information
关键词
西南桦
人工林
生长规律
Birch
plantation
growth regularity
