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乌岩岭不同林分土壤有机碳含量及分布特征(PDF)

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

Issue:
2018年04期
Page:
198--1
Column:
研究简报
publishdate:
2018-07-12

Article Info:/Info

Title:
Distribution of soil organic carbon among different forest types in Wuyanling Nature Reserve
Article ID:
1000-2006(2018)04-0198-05
Author(s):
QUAN Wei1 RONG Jiantao1 ZHENG Fangdong2
1.Wenzhou Key Laboratory of Adding Carbon Sinks and Reducing Carbon Emissions of Agriculture, Forestry and Fishery Ecosystem, Wenzhou Vocational College of Science and Technology, Wenzhou 325006, China; 2. Wuyanling National Nature Reserve Management Bureau of Zhejiang Province, Taishun 325500, China
Keywords:
Keywords:soil water-soluble organic carbon distribution character of soil organic carbon forestry soil Wuyanling Nature Reserve in Zhejiang Province
Classification number :
S714
DOI:
10.3969/j.issn.1000-2006.201710031
Document Code:
A
Abstract:
Abstract: 【Objective】Forest ecosystems at the Wuyanling Nature Reserve in Zhejiang Province close to the Pacific Ocean have a unique marine climate and play an important role in the subtropical region of China. Exploring the soil organic carbon content and its distribution characteristics among different forest types can provide information for improving the management of soil carbon pools and promoting sustainable management and development of forest ecosystems.【Method】The content of the soil organic carbon(SOC)and soil water-soluble organic carbon(WSOC)of seven forest types(pine forest, Chinese fir forest, Cryptomeria fortunei forest, broad-leaved forest, mixed forest bamboo forest, and tea plantation)were determined by Shimadzu TOC-LCPH total organic carbon analyzer, and their correlations with soil factors were analyzed. 【Result】 The SOC content and WSOC contents of all seven forest types decreased with increasing soil depth, showing obvious vertical distribution patterns. The SOC contents in all soil layers were the highest in the Chinese fir forest, and the WSOC contents in the soil layers ≥10-25 cm and ≥25-40 cm were also the highest in the Chinese fir forest. The percentage of WSOC to SOC varied from 0.59% to 1.51%, among which the highest was found in the layer ≥25-40 cm in the Chinese fir forest and the lowest was found in the layer ≥25-40 cm of the pine forest. There was an extremely significant negative linear correlation between SOC and bulk density(P < 0.01), and a significant negative linear correlation of SOC with pH(P < 0.05). The content of WSOC showed an extremely significant negative linear correlation with both soil bulk density and pH(P < 0.01). 【Conclusion】Soil bulk density and pH are both important factors affecting SOC and WSOC contents in the Wuyanling Nature Reserve.

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Last Update: 2018-07-27