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应用生态学报 ›› 1999, Vol. 10 ›› Issue (4): 404-406.

• 研究论文 • 上一篇    下一篇

固氮树种在混交林中的作用研究Ⅲ.固氮树种凋落物分解及N的释放

何兴元, 赵淑清, 杨思河, 田春杰   

  1. 中国科学院沈阳应用生态研究所, 沈阳 110015
  • 收稿日期:1998-12-28 修回日期:1999-04-12 出版日期:1999-07-25 发布日期:1999-07-25
  • 通讯作者: 何兴元,男,37岁,博士,研究员,主要从事木本植物与微生物共生生态及应用技术方面的研究,发表论文20余篇.E-mail:hexy@iae.syb.ac.cn.
  • 基金资助:

    中国科学院”九五”重点资助项目(KZ951-B1-101).

Role of nitrogen fixing trees in mixed forest Ⅲ Leaf litter decomposition and its N release of nitrogen fixing tree species

He Xingyuan, Zhao Shuqing, Yang Sihe, Tian Chunjie   

  1. Institute of Applied Ecology, Academia Sinica, Shenyang 110015
  • Received:1998-12-28 Revised:1999-04-12 Online:1999-07-25 Published:1999-07-25

摘要: 研究了11种固氮和非固氮树种凋落物分解及可利用态N的释放。结果表明,固氮树木凋落物中N的生物分解系数、落叶分解过程中干重的损失率及有效态氮的释放分别比非固氮树种高出1.3、1.5和8.2倍。

关键词: 固氮树种, 凋落物分解, N的释放, 植被类型, 绿地, 土壤水库, 上海中心城区

Abstract: Studies on the leaf litter decomposition and its N release of 11 N-fixing and non-N-fixing tree species showed that the biological decay coefficient of leaf litter, the dry weight loss of leaf litter during its decay, and the N release from the leaf litter of N-fixing tree species were 1.3, 1.5 and 8.2 times higher than those of non-N-fixing ones, respectively.

Key words: Nitrogen-fixing tree species, Leaf litter decomposition, N release, vegetation type, water reservoir, green belt, Shanghai, soil, central urban area