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不同密度马尾松人工林凋落物及养分归还量的年变化特征(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2006年05期
Page:
83-86
Column:
研究论文
publishdate:
2006-05-20

Article Info:/Info

Title:
The Annual Variation Feature of Litter and Nutrient Restitution in Different Density Pinus massoniana Plantation
Article ID:
1000-2006(2006)05-0083-04
Author(s):
YAO Rui-ling12 DING Gui-jie1* : WANG Yin1
1. College of Forest Guizhou University, Guiyang 550025, China; 2. College of Forest Resources and Environment Nanjing Forestry University, Nanjing 210037. China
Keywords:
Pinus massoniana Plantation Litterfall Nutrient-restitution Annual variation
Classification number :
S718
DOI:
10.3969/j.jssn.1000-2006.2006.05.020
Document Code:
A
Abstract:
Taking the measure of many sampling plots’ collector which was periodical, accurate and fix-spotted,this paper deals with the annual variation feature of litter and nutrient restitution in three kinds of density stand from 14-year-old Pinus massoniana. The results showed that with the increasing of density, the annual amount of litterfall was 2 74S. 821~4 911. 179 kg/(hm2? a) respectively. The annual restitution amount of N,P,K,Ca and Mg in litter was 15.558~27.374 kg/(hm2? a), 1.437~2.900 kg/(hm2?a), 12.393~2,5. 365 kg/(hm2? a),10. 850~22. 056 kg/(hm2? a) and 2. 487~3. 278 kg/(hm2? a). The seasonal dynamics of forest litter and nutrient restitution was in the order of autumn,winter, summer,spring. Except for Mg, the bigger the density of plantation was, the more the amount of seasonal litterfall and nutrient restitution was.

References

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Last Update: 2013-05-20