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苏南丘陵区4种典型人工林土壤活性有机碳分布特征(PDF)

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

Issue:
2012年04期
Page:
79-83
Column:
研究论文
publishdate:
2012-07-31

Article Info:/Info

Title:
The variations of soil labile organic carbon in four plantations in south of Jiangsu province
Author(s):
LI Ping1 WANG Guobing1 ZHENG Abao2 SHEN Yujuan1 ZHAO Qiqi1 WANG Linfei1 JIANG Rusheng3 LI Li4 RUAN Honghua1*
1.Jiangsu Key Laboratory of Forestry and Ecological Engineering, Nanjing Forestry University, Nanjing 210037, China; 2.Forestry Department of Jiangsu Province, Nanjing 210036, China; 3.Liyang City Agricultural and Forestry Bureau, Liyang 213300, Ch
Keywords:
plantations soil carbon cycle water soluble organic carbon readily oxidation carbon south of Jiangsu province
Classification number :
S714.5
DOI:
10.3969/j.jssn.1000-2006.2012.04.016
Document Code:
A
Abstract:
The soil labile carbon is one of the important components of the global carbon cycle. The variations of soil total organic carbon(TOC), water soluble organic carbon(WSOC), readily oxidation carbon (ROC)and their correlations with basic physicochemical properties at four plantations were examined in south area of Jiangsu province. Our results showed that the soil TOC concentration ranged in order as follow: Quercus acutissima>Cunninghamia lanceolata>Phyllostachys pubescens>Pinus elliottii. The soil WSOC concentration ranged in order as follow: Ph. pubescens>C. lanceolate>P. elliottii>Q. acutissima. The soil ROC concentration ranged as follow: Q. acutissima>Ph. pubescens>C. lanceolata>P. elliottii. The WSOC/TOC, ROC/TOC ratios were varied. There was significantly correlation among AOC(WSOC & ROC)and TOC, TN, respectively. Meanwhile, there was no significantly correlation between AOC and other soil basic physicochemical properties. Our study indicated that the soil organic carbon of broadleaved plantations was higher than that in the coniferous plantations, and Ph. pubescens might play an important role in carbon cycling of forest ecosystems. However, the stabilization of soil carbon storage of them did not obvious different.

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Last Update: 2012-07-07