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[1]张伟东,汪思龙,杨会侠,等.树种和凋落物对杉木林土壤微生物性质的影响[J].应用与环境生物学报,2010,16(02):168-172.[doi:10.3724/SP.J.1145.2010.00168]
 ZHANG Weidong,WANG Silong,YANG Huixia,et al.Effects of Broad-leaved Trees and Litter on Productivity and Soil Microbes of Chinese Fir Plantation[J].Chinese Journal of Applied & Environmental Biology,2010,16(02):168-172.[doi:10.3724/SP.J.1145.2010.00168]
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树种和凋落物对杉木林土壤微生物性质的影响()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
16卷
期数:
2010年02期
页码:
168-172
栏目:
研究论文
出版日期:
2010-04-25

文章信息/Info

Title:
Effects of Broad-leaved Trees and Litter on Productivity and Soil Microbes of Chinese Fir Plantation
文章编号:
200904046
作者:
张伟东汪思龙杨会侠于小军
(1中国科学院沈阳应用生态研究所 沈阳 110016)
(2中国科学院会同森林生态实验站 会同 418307)
(3中国科学院研究生院 北京 100049)
Author(s):
ZHANG WeidongWANG SilongYANG HuixiaYU Xiaojun
(1Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China)
(2Huitong National Station of Forest Ecology, Chinese Academy of Sciences, Huitong 418307, Hunan, China)
(3Graduate University of Chinese Academy of Sciences, Beijing 100049, China)
关键词:
杉木固氮树种凋落物生物量微生物量碳呼吸熵
Keywords:
Chinese fir N-fixing tree species litter microbial biomass C metabolic quotient
分类号:
S714.33 : S791.270.2
DOI:
10.3724/SP.J.1145.2010.00168
文献标志码:
A
摘要:
调查了两个阔叶树种(固氮树种桤木Alnus cremastogyne Burkill和非固氮树种五角枫Acer mono Maxim)及凋落物施放对杉–阔混交林生物量和土壤微生物性质的影响. 结果表明,杉–阔混交林中杉木生物量没有显著差异(P>0.05),杉木–桤木混交林总生物量比杉木–五角枫多200%(P<0.05),增加的生物量源于阔叶树种的差异. 凋落物对两个类型混交林的生物量都没有产生显著影响(P>0.05). 桤木混交处理0~10 cm层土壤的土壤有机碳增加了16.8%,而土壤基础呼吸和呼吸熵下降了13.1%和16%. 覆盖凋落物使0~10 cm层的微生物量碳增加了10.8%,此外,树种和凋落物对土壤基础呼吸和呼吸熵有显著的交互作用(P<0.05). 土壤有机碳和树木的生物量呈显著的正相关(R=0.775,P=0.005,N=12). 不考虑处理间的差异,土壤微生物量碳与土壤有机碳(R=0.438,P=0.032,N=24)、可溶性有机碳(R=0.0.541,P=0.006,N=24)具有显著的相关性. 混交林树种的选择和凋落物对杉–阔混交林林地土壤微生物学性质都具有重要的作用. 图3 表2 参23
Abstract:
The effects of broad-leaved tree introduction and litter formation on the productivity and soil microbial properties were investigated in the Chinese fir [Cunminghamia lanceolata (Lamb) Hook] plantation. The results showed that the productivity was increased by 200% after the introduction of N-fixing Alnus cremastogyne (AC) compared with that of non-N-fixing Acer mono (AM) , and the increment was obtained from A. cremastogyne. The productivity of fir was not affected by tree species (P<0.05). A. cremastogyne increased the total organic C by 16.8%, and decreased soil basal respiration and qCO2 by 13.1% and 16% in 0~10 cm soil, respectively. The microbial biomass C in soil at 0~10 cm depth was increased by 10.8% by litter (P<0.05). Furthermore, the tree species and litter had significant interactive effects on soil basal respiration and qCO2 (P<0.05). The total organic C in 0~10 cm soil was positively related with the productivity of tree (R2=0.775, P=0.005, N=12), and the microbial biomass C was significantly related with total organic C (R2=0.438, P=0.032, N=24). The results suggested that the tree species and litter were both important to soil microbial properties in mixed plantation. Fig 3, Tab 2, Ref 23

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备注/Memo

备注/Memo:
中国科学院知识创新工程重要方向项目(Nos. KZCX2-YW-405, KZCX2-YW-413)资助 Supported by the Key Project of the Knowledge Innovation Program of the Chinese Academy of Sciences (Nos. KZCX2-YW-405, KZCX2-YW-413)
更新日期/Last Update: 2010-04-20