[1]黄雪菊,王琴,孙辉,等.不同地表覆盖下低温季节对西南亚高山土壤微生物量碳动态的影响[J].山地学报,2012,(05):543.
　HUANG Xuejue,WANG Qin,SUN Hui,et al.Soil Biomass Carbon Dynamics of Subalpine Forest in Western Sichuan Province during the Cold Season[J].Mountain Research,2012,(05):543.
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不同地表覆盖下低温季节对西南亚高山土壤微生物量碳动态的影响()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2012年05期
页码:
543
栏目:
山地学报
出版日期:
2012-01-01

文章信息/Info

Title:
Soil Biomass Carbon Dynamics of Subalpine Forest in Western Sichuan Province during the Cold Season
作者:
黄雪菊;王琴;孙辉;李沙;
1.四川省环境科学保护研究院, 四川 成都610041;
2.四川大学环境科学与工程系, 四川 成都610065
Author(s):
HUANG Xuejue; WANG Qin; SUN Hui; LI Sha
1. Sichuan Research Academy of Environmental Science, Chengdu 610041，China;
2. Department of Environmental Science and Engineering, Sichuan University, Chengdu 610065,China
关键词:
亚高山土壤; 森林土壤; 土壤微生物量(MBC); 低温季节; 土壤有机碳
Keywords:
alpine soil;  forest soil;  soil microbial biomass (MBC);  cold season;  soil organic carbon
分类号:
S714
文献标志码:
A
摘要:
西南亚高山森林土壤是我国土壤碳密度最高区域之一,作为敏感的低温生态系统越来越受到关注。通过对均质化土壤重装土柱在积雪与凋落物覆盖(Control)、积雪覆盖(BNS)、凋落物覆盖(LNS)和裸露土壤(BNS)条件下原位培养,测定各处理0～10 cm和10～20 cm土壤微生物量变化。结果显示,低温季节亚高山土壤微生物量仍处于较高水平,显示低温季节是亚高山土壤生态过程重要时期;雪被和凋落物覆盖对亚高山森林土壤低温季节的微生物量碳影响显著,在0～10 cm土层control微生物量最高,裸地(BNS)最低,只有凋落物(LNS)或积雪覆盖(BS)处理介于二者之间;control在10～20 cm深度...
Abstract:
Subalpine forest in the southwestern of China, as one of the most important cold ecosystem with high sensitivity and altitude, and high density of soil organic carbon, attaches more and more attentions recently. Repacked columns of homogenized subalpine forest topsoil (0~20 cm) were incubated onsite under three treatments, i.e., bare soil without litter and snow cover (BNS), bare soil with snow cover (BS), snowfree soil with litter cover of 10 cm depth (LNS), and control (soil with 10 cm litter and snow cover) to determined the impacts of surface coverage on soil microbial biomass (MBC) dynamics during the cold season. The results showed that content of MBC was bery high during the cold season, indicating that cold season is an important period for soil C storage and turnover. Coverage of snowpack and litter impacted MBC significantly, and MBC of the control is higher than other treatment during the mid and later period of cold season while the BNS (bare soil) is the lowest, suggesting that snowpack and litter cover improve the soil MBC significantly. The temporal fluctuations, and difference of MBC contents between 0~10 cm and 10~20 cm of the 3 treatments and control are also different during the cold season, and there were significant interactions between snowcover, litter cover, soil depth and sampling time on soil MBC. We conclude that snow and litter cover improved soil MBC due to insulating soil from adruptly temperature fluctuation and frequently freezethaw cycle, and disappearance of snowpack and litter under climate change and LUCC would reduce soil MBC, soil respiration, and organic carbon mineralization for subalpine forest soil during the cold season.

相似文献/References:

[1]李明锐,沙丽清.云南保山西庄河流域森林土壤磷吸附特性[J].山地学报,2002,(03):313.

备注/Memo

备注/Memo:
收稿日期(Received date)：2011-09-20；改回日期(Accepted) : 2012-04-12。
基金项目（Foundation item）：国家自然科学基金(40871124)，国际科学基金(D/4600-1)和中央高校基本科研业务费(2010SCU2207)。\[Supported by National Natural Science Foundation of China (40871124), International Foundation for Science (D/4600-1), and the Fundamental Research Funds for the Central Universities (2010SCU2207).\]
作者简介（Biography）：黄雪菊(1978-)，女，甘肃兰州人，硕士，工程师，主要从事土壤生态和环境生态方面的研究工作。 \[Huang Xueju (1978-), female, M S, major in soil ecology.\] E-mail: avis4512@yahoo.com.cn *
通讯作者(Corresponding author)：E-mail: sunhuifiles@gmail.com
更新日期/Last Update: 1900-01-01