Effects of Litter Input Change on Soil Organic Carbon in Dendrocalamus Affinnis Forest

PENG Lin; WANG Xiao-jun; HUANG Cong-de; LI Kai-zhi

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Effects of Litter Input Change on Soil Organic Carbon in Dendrocalamus Affinnis Forest

- Effects of Litter Input Change on Soil Organic Carbon in Dendrocalamus Affinnis Forest
- Bulletin of Soiland Water Conservation Vol. 33, Issue 1, Pages: 129-132(2014)
- 作者机构：
  
  四川农业大学林学院,四川,雅安,625014
- 作者简介：
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- Published：2014
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PENG Lin, WANG Xiao-jun, HUANG Cong-de, et al. Effects of Litter Input Change on Soil Organic Carbon in Dendrocalamus Affinnis Forest[J]. Bulletin of Soiland Water Conservation, 2014, 33(1): 129-132.
DOI：

PENG Lin, WANG Xiao-jun, HUANG Cong-de, et al. Effects of Litter Input Change on Soil Organic Carbon in Dendrocalamus Affinnis Forest[J]. Bulletin of Soiland Water Conservation, 2014, 33(1): 129-132. DOI：

摘要

通过野外试验

研究了凋落物输入改变对慈竹林土壤有机碳的影响。设置10%

50%和70%这3种去除凋落物量和分别添加15%

25%的绵竹、杉木凋落物处理及对照。结果发现

去除凋落后慈竹林土壤有机碳含量明显减少(p<0.05)

而且去除量越大

有机碳含量减少越大。添加外源凋落物显著提高了慈竹林土壤有机碳含量(p<0.05)

其中

15%的添加比例比25%更有利于土壤有机碳的积累

添加绵竹凋落物对土壤有机碳增加的效应高于添加杉木凋落物。研究表明

选择适合的树种和恰当的混交比例以及加强对凋落物层的保护

对维持慈竹林土壤有机碳具有重要的意义。

Abstract

A field experiment with three litter removed(10%

50% and 70%) and four litter added(15% and 25% Bambusa intermedia

and 15% and 25% Cunninghamia lanceolata) treatments was conducted to study soil organic carbon in Dendrocalamus affinnis forest as affected by changeing litter input. Results showed that soil organic carbon content in the forest significantly decreased after litter was removed(p<0.05). The more the litter removed

the larger the decrease in soil organic carbon content was. Litter adding can significantly increase soil organic carbon content(p<0.05). Higher soil organic carbon content was detected in the 15% litter added treatment as compared with the 25% litter-added. Moreover

adding B. intermedia litter was more beneficial to soil carbon accumulation than adding C. lanceolata litter. This study suggests that the appropriate mixed species and proportion

as well as the protection of litter layer

can play important roles in maintaining soil organic carbon in D. affinnis forests.

关键词

Keywords

references

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