霍林河流域湿地土壤碳氮空间分布特征及生态效应

应用生态学报 ›› 2003, Vol. ›› Issue (9): 1494-1498.

霍林河流域湿地土壤碳氮空间分布特征及生态效应

白军红, 邓伟, 朱颜明, 栾兆擎, 张玉霞

中国科学院东北地理与农业生态研究所, 长春 130021

收稿日期:2001-03-07 修回日期:2001-06-21 出版日期:2003-09-15
通讯作者: 白军红,男,1976年生,博士研究生,主要从事湿地生源要素生物地球化学过程及生态效应等方面的研究.发表论文10多篇.E-mail:junhongbai@163.comorjunhongbai@yeah.net.
基金资助:
中国科学院知识创新工程项目(KZCXZ-302);湖沼三期(ZKHZ-03-06);中国科学院“百人计划”资助项目

Spatial distribution characteristics and ecological effects of carbon and nitrogen of soil in Huolin River catchment wetland

BAI Junhong, DENG Wei, ZHU Yanming, LUAN Zhaoqing, ZHANG Yuxia

Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences, Changchun 130012, China

Received:2001-03-07 Revised:2001-06-21 Online:2003-09-15

摘要/Abstract

摘要： 对霍林河流域湿地土壤有机碳及全氮空间分布特征及其生态效应的研究表明,有机碳和全氮的水平分异和垂直分异都十分显著,干湿交替周期是引起分异的关键因子;表层土壤有机碳与全氮含量显著相关(r=0.977),土壤碳氮比基本沿湿度梯度变化;土壤pH值对土壤表层碳氮含量及碳氮比值影响显著;流域湿地土壤与流域草原土壤碳氮比与土壤碳氮含量的相关性差异显著;其生态效应主要表现在生产效应和净化效应两方面。

Abstract: This paper studied the spatial distribution characteristics and ecological effects of organic carbon and nitrogen in soils of Huolin River catchment wetland in horizontal and vertical levels.The results showed that the differences of horizontal and vertical distribution of organic carbon and nitrogen were very obvious, and of all the factors such as the period of wetting and drying cycles, leaching, plant and flood etc.,the period of wetting and drying cycles was contents the critical one, which caused the differences.Soil organic carbon was significantly correlated with soil nitrogen (r=0.977).The ratio of carbon and nitrogen (C/N) changed along with the humidity gradient, and soil pH values obviously influenced the concentration of organic carbon and nitrogen.The correlation of C/N values and organic carbon and nitrogen contents in wetland soil and in grassland soil were remarkably different, and the ecological effects mainly included production effect and clarification effect.

中图分类号:

S156.8

白军红, 邓伟, 朱颜明, 栾兆擎, 张玉霞. 霍林河流域湿地土壤碳氮空间分布特征及生态效应[J]. 应用生态学报, 2003, (9): 1494-1498.

BAI Junhong, DENG Wei, ZHU Yanming, LUAN Zhaoqing, ZHANG Yuxia . Spatial distribution characteristics and ecological effects of carbon and nitrogen of soil in Huolin River catchment wetland[J]. Chinese Journal of Applied Ecology, 2003, (9): 1494-1498.

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