鹞落坪4种典型植被类型土壤活性碳、氮特征比较

doi:10.11924/j.issn.1000-6850.2013-2620

中国农学通报 ›› 2014, Vol. 30 ›› Issue (4): 23-28.doi: 10.11924/j.issn.1000-6850.2013-2620

鹞落坪4种典型植被类型土壤活性碳、氮特征比较

葛萍王伟波朱晓林达良俊

收稿日期:2013-10-09 修回日期:2013-11-11 出版日期:2014-02-05 发布日期:2014-02-05
基金资助:
城乡一体化建设中林业关键技术研究“生态公益林抚育与多功能经营关键技术研究”(48104410)；低碳技术在生态农业中的集成应用“上海森林生态系统的碳储量估测研究”(48102700)。

The Characteristics Comparison of Soil Active Organic Carbon and Nitrogen of 4 Kinds of Vegetation Types in Yaoluoping

Received:2013-10-09 Revised:2013-11-11 Online:2014-02-05 Published:2014-02-05

摘要/Abstract

摘要： 为了探讨不同植被类型土壤活性碳氮的差异特征，系统分析了不同植被类型土壤活性碳氮水平。以安徽省鹞落坪自然保护区内常绿阔叶林(EBF)、常绿落叶阔叶混交林(EDBF)、落叶阔叶林(DBF)和常绿针叶林(ECF)4种典型植被类型为对象，研究其土壤微生物量碳(MBC)、氮(MBN)和溶解性有机碳(DOC)、氮(DON)的含量。结果表明：用热水浸提的土壤DON和DOC含量分别是用KCl浸提的1.5~2.8倍。不同植被类型下，用热水和KCl溶液浸提的DOC和DON含量的大小顺序均为：DBF>EDBF>EBF>ECF；DONKCl的含量与DONhw的含量之间均不存在显著的相关关系，土壤潜在性可矿化氮(PMN)含量与DONhw含量存在显著的正相关关系(r=0.85，P＜0.05)，与DOCKCl含量不存在显著的相关关系，说明用热水浸提的DON含量比KCl溶液浸提的DON含量能更好地指示土壤活性有机氮库。土壤MBC的变化范围在136.45~297.23 mg/kg，土壤MBN的变化范围在16.33~37.11 mg/kg，4种林型土壤MBC、MBN的特征均为：DBF>EBF>EDBF>ECF。相关性分析显示，土壤MBC与DOC之间以及土壤MBN与DON之间的相关性达显著或极显著水平，说明土壤MBC、MBN、DOC和DON之间有密切联系，且不同植被类型下土壤活性碳氮来源不同是DOC、DON 与MBC、MBN相关性差异的主要原因。

关键词: 栽培管理措施, 栽培管理措施

Abstract: In order to explore the difference characteristics of soil active organic carbon and nitrogen in different vegetation types, the author systematically analyzed the different vegetation types in the level of soil active organic carbon and nitrogen. This field study was conducted at Yaoluoping Nature Reserve, Anhui Province. In order to determine the concentrations of soil microbial biomass carbon (MBC), microbial biomass nitrogen (MBN), dissolved organic carbon (DOC), and dissolved organic nitrogen (DON) under 4 different vegetations, including evergreen broad-leaved forest (EBF), evergreen broad-leaved and deciduous broad-leaved mixed forests (EDBF), deciduous broad-leaved forests (DBF) and evergreen coniferous forests (ECF). The results showed that hot water extracted 1.5-2.8 times more soil DOC and DON than 2 mol/L KCl. The pool sizes of DOC and DON were measured by hot water and 2 mol/L KCl extraction were in the order of DBF>EDBF>EBF>ECF under 4 different vegetations；The amounts of DON in 2 mol/L KCl extracts were not significantly correlated with those in hot water extracts. The DON in hot water extracts was significantly related to potential mineralizable N (PMN) (r =0.85, P＜0.05), while there was no such relationship present between the PMN and the DOC in KCl extract. This indicated that the DON in hot water extracts might better indicator of soil active organic N pool. Soil MBC and MBN concentrations were 136.45-297.23 mg/kg, and 16.33-37.11 mg/kg, respectively. 4 forests in soil MBC and MBN were characterized by DBF>EBF>EDBF>ECF. There were significant positive correlations between MBC, MBN and DOC, DON, indicating the close relationships between MBC, MBN and DOC, DON and the main reason of this distinction was the diverse source in active organic carbon and nitrogen under different vegetation.

葛萍王伟波朱晓林达良俊. 鹞落坪4种典型植被类型土壤活性碳、氮特征比较[J]. 中国农学通报, 2014, 30(4): 23-28.

参考文献

[1] Kalbit K, Solinger S, Park J K, et al. Controls on the dynamic of dissolved organic matter in soils: A review[J].Soil Science,2000, 165:277-304.
[2] Jenkinson D S. The turnover of the organic carbon and nitrogen in soil[J].Philosophical Transactions of the Royal Society,1990,329: 361-368.
[3] 姜培坤,周国模.侵蚀型红壤植被恢复后土壤微生物量碳、氮的演变[J].水土保持学报,2003,17(1):112-114.
[4] Wardle D A. A comparative assessment of factors which influence microbial biomass carbon and nitrogen levels in soil[J].Biological Reviews,1992,67(3):321-358.
[5] Chapman P J, Williams B L, Hawkins A. Influence of temperature and vegetation cover on soluble inorganic and organic nitrogen in a spodosol[J].Soil Biology and Biochemistry,2001,33(7):1113-1121.
[6] Kara O, Bolat I. Soil microbial biomass C and N changes in relation to forest conversion in the northwestern Turkey[J].Land Degradation and Development,2008,19(4):421-428.
[7] Jiang Y M, Chen C R, Liu Y Q, et al. Soil soluble organic carbon and nitrogen pools under mono- and mixed species forest ecosystems in subtropical China[J].Journal of Soils and Sediments, 2010,10:1071-1081.
[8] Park J H, Kalbitz K, Matzner E. Resource control on the production of dissolved organic carbon and nitrogen in a deciduous forest floor [J].Soil Biology and Biochemistry,2002,34:813 822.
[9] Hedin L O, Armesto J J, Johnson A H. Patterns of nutrient loss from unpolluted old-growth temperate forest: evaluation of biogeochemical theory[J].Ecology,1995,76:439-509.
[10] 刘占锋,刘国华,傅伯杰,等.人工油松林恢复过程中土壤微生物生物量 C、 N的变化特征[J].生态学报,2007,27(3):1011-1018.
[11] 刘满强,胡蜂,何园球,等.退化红壤不同植被恢复下土壤微生物量季节动态及其指示意义[J].土壤学报,2003,40(6):937-944.
[12] 江玉梅,陈成龙,徐志红,等.退化红壤区人工林土壤的可溶性有机物、微生物生物量和酶活性 [J]. 应用生态学报,2010,21(9): 2273-2278.
[13] Waring S A, Bremner J M. Ammonium production in soil under waterlogged conditions as an index of nitrogen availability[J]. Nature,1964,201:951-952.
[14] Burton J, Chen C R, Xu Z H, et al. Soluble organic nitrogen pools in adjacent native and plantation forests of subtropical Australia[J]. Soil Biology and Biochemistry,2007,39:2723–2734.
[15] Jiang Y M, Chen C R, Liu Y Q, et al. Soil soluble organic carbon and nitrogen pools under mono- and mixed species forest ecosystems in subtropical China[J].Journal of Soils and Sediments, 2010,10:1071-1081.
[16] Kalbitz K, Solinger S, Park J H, et al. Controls in the dynamics of dissolved organic matter in soils: A review[J].Soil Science,2000,165 (4):277-304.
[17] Chapman P J, Williams B L, HawkinsA. Influence of temperature and vegetation cover on soluble inorganic and organic nitrogen in a spodosol[J]. Soil Biology and Biochemistry,2001,33(7):1113-1121.
[18] Chen C R, Condron L M, Xu Z H. Impacts of grassland afforestation with coniferous trees on soil phosphorus dynamics and associated microbial processes: a review[J].Forest Ecology and Management,2008,255:396-409.
[19] Witt C, Set?l?, H. Do plant species of different resource qualities form dissimilar energy channels below-ground?[J].Applied Soil Ecology,2010,44:270-278.
[20] Wang Q, Wang S. Response of labile soil organic matter to changes in forest vegetation in subtropical regions[J].Applied Soil Ecology, 2011,47:210-216.
[21] Xing S H, Chen C R, Zhou B Q, et al. Soil soluble organic nitrogen and microbial processes under adjacent coniferous and broadleaf plantation forests[J].Journal of Soils and Sediments,2010,10: 1071-1081.
[22] Anderson T H, Domsch, K H. The metabolic quotient for CO2 as a specific activity parameter to assess the effects of environmental conditions, such as Ph,on the microbial biomass of forest soils[J]. Soil Biology and Biochemistry,1993,25:393-395.
[23] Bauhus J, Pare D, Cote L. Effects of tree species stand age and soil type on soil microbial biomass and its activity in a southern boreal forest[J]. Soil Biology and Biochemistry,1998,30:1077-1089.
[24] Narnbu I T, Yonebayashi K. Acidic properties of dissolved organic matter leached from organic layers in temperate forests[J].Soil Science and Plant Nutrition,1999,45:65-77.
[25] Xu, X K, Inubushi, K, Sakamoto, K. Effect of vegetations and temperature on microbial Biomass carbon and metabolic quotients of temperate volcanic forest soils[J].Geoderma,2006,136(1): 310-319.
[26] 何容.对武夷山亚热带森林土壤微生物量沿海拔高度的变化[D].南京:南京林业大学,2007:27-28.
[27] 黄靖宇,宋长春,宋艳宇,等.湿地垦殖对土壤微生物量及土壤溶解有机碳、氮的影响[J].环境科学,2008,29(5):1380-1387.
[28] 多祎帆,王光军,闫文德,等.亚热带 3种森林类型土壤微生物碳、氮生物量特征比较[J].中国农学通报,2012,28(13):14-19.
[29] 张海燕,肖延华,张旭东.土壤微生物量作为土壤肥力指标的探讨[J].土壤通报,2006,37(3):422-425.
[30] Jia G M, Cao J, Wang C Y, et al. Microbial biomass and nutrients in soil at the different stages of secondary forest succession in Ziwulin, northwest China[J].Forest Ecology and Management,2005, 217(1):117-125.

鹞落坪4种典型植被类型土壤活性碳、氮特征比较

The Characteristics Comparison of Soil Active Organic Carbon and Nitrogen of 4 Kinds of Vegetation Types in Yaoluoping

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 1

编辑推荐

Metrics

本文评价

关于本刊

作者中心

审者中心

在线期刊

联系我们