摘要
以黑龙江省东北林业大学老山人工林实验站26林班白浆土栽培的红松人工林为试验地,林龄20年,公顷株数为3 240株,研究结果表明,矿质元素贮量为502.37 kg.h-1.m-2,平均每年为25.12 kg.h-1.m-2。其中乔木层占总量的81.46%,灌木层占11.17%,草本层占2.56%,凋落层占4.81%。为增加矿质元素含量与贮量,应调整林分结构,促进生长,提高林地生产力。
The plantations of Pinus koraiensis at the compartment 26 of Laoshan experimental station of Northeast Forestry University were studied. The plantations are 20 years old, and there are 3 240 individual plant per hectare. The results indicate the total storage of nutritive elements is 502.37 kg · h^-1· m^-2 The mean storage is 25. 12 kg · h^-1 ·m^-2 per annum. The storage of arbor is 81.46% , followed by shrub 11.17%, herb 2.56% and litter 4.81%, respectively. To improve the content and storage of nutritive elements and production, the management of plantations is needed.
出处
《植物研究》
CAS
CSCD
北大核心
2008年第4期503-508,共6页
Bulletin of Botanical Research
关键词
红松人工林
矿质营养元素
乔木层
凋落层
plantation
Pinus koraiensis
mineral nutritive elements
arbor
litter
