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生态学杂志 ›› 2012, Vol. 31 ›› Issue (11): 2775-2780.

• 研究报告 • 上一篇    下一篇

浑河河岸带六种草本植物氮、磷含量特征

于帅1,2,陈玮1**,何兴元1,刘周莉1,黄彦青1   

  1. 1森林与土壤生态国家重点实验室, 中国科学院沈阳应用生态研究所, 沈阳 110164; 2中国科学院研究生院, 北京 100049)
  • 出版日期:2012-11-10 发布日期:2012-11-10

Nitrogen and phosphorus contents of six herb species in riparian zone of Hunhe River,  Northeast China.

YU Shuai1,2, CHEN Wei1**, HE Xing-yuan1, LIU Zhou-li1, HUANG Yan-qing1   

  1. (1State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang
    110164, China; 2Graduate University of Chinese Academy of Sciences, Beijing 100049, China)
  • Online:2012-11-10 Published:2012-11-10

摘要: 通过实地采样方法,测定了大伙房水库上游浑河河岸带水蒿(Artemisia selengensis)、狼牙委陵菜(Potentilla cryptotaeniae)、水金凤(Impatiens nolitangere)、茵陈蒿(Artemisia capillaries)、金盏银盘(Bidens biternata)、桃叶蓼(Polygonum persicaria)6种草本植物在7、8和9月根、茎和叶的总氮(TN)、总磷(TP)含量。结果表明:浑河上游6种草本植物TN含量为5.10~45.06 mg·g-1,TP含量为1.60~18.01 mg·g-1,氮/磷比平均值为2.68,范围0.92~6.14,显示出该地区P过剩;不同植物之间、同种植物不同器官中的TN、TP含量有显著性差异。综合考虑,水金凤中TN、TP含量高于其他5种植物,可以作为以水体修复为目的的河岸带植被恢复的备选植物。  

关键词: 恢复湿地, N2O, 硝化-反硝化作用, 氮输入, 黄河口

Abstract: In this paper, the root, stem, and leaf samples were collected from six herb species (Artemisia selengensis, Potentilla cryptotaeniae, Impatiens nolitangere, Artemisia capillaries, Bidens biternata, and Polygonum persicaria) in the riparian zone at the upstream of Hunhe River in July, August, and September, 2010, aimed to compare the total nitrogen (TN) and total phosphorus (TP) contents in the organs of these herb species. In the test organs, the TN and TP contents were 5.10-45.06 mg·g-1 and 1.60-18.01 mg·g-1, respectively, and the N/P ratio ranged from 0.92 to 6.14, with an average of 2.68. There existed significant differences in the N and P contents between different organs of the same or different herb species. Among the test five species, I. nolitangere had the highest TN and TP contents, being able to be selected as a candidate species used for the improvement of water quality in the riparian zone of Hunhe River.

Key words: restoration wetland, nitrous oxide (N2O), nitrification-denitrification, exogenous nitrogen, Yellow River estuary.