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不同落叶林林下凋落物的分解与养分归还(PDF)

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

Issue:
2004年05期
Page:
59-62
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
Decomposition and Nutrient Return of the Leaf Litter under the Pure and Mixed Plantations of Juglans mandshrica and Larix gmelinii
Article ID:
1000-2006(2004)05-0059-04
Author(s):
LI Shu-lan~1CHEN Yong-liang~(12)
1.Linyi Normal College,Linyi 276005,China;2.Shandong Agricultural University,Taian 271018,China
Keywords:
Pure plantationMixed plantationLeaf litterDecomposing rateNutrient return
Classification number :
S718
DOI:
10.3969/j.jssn.1000-2006.2004.05.014
Document Code:
A
Abstract:
The characteristics of the decomposition and the nutrient return of the leaf litters under the pure and mixed plantations of Juglans mandshurica and Larix gmelinii were studied by decomposing-bag method.The result showed that in one growth season the decomposing rates were as follows:the J.mandshurica pure plantation>mixed plantation>the L.gmelinii pure plantation.The return rate of the nitrogen element was the fastest in the pure plantation of J.mandshurica and on the other hand the return rates of the phosphorus and potassium were the fastest in the pure plantation of L.gmelinii.The return rate of the nitrogen in the mixed plantation was obviously faster than it was in the L.gmelinii pure plantation and those of the phosphorus and potassium were obviously faster than they were in the J.mandshurica pure plantation.In contrast with the pure plantations,the improvement of the return rates of the nutrient elements in the mixed plantation may be one of the machenisms for the growth improvement of the mixed plantation.

References

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Last Update: 1900-01-01