TEMPORAL-SPATIAL DISTRIBUTION OF SOIL INORGANIC NITROGEN IN CYPERUS MALACCENSIS RHIZOSPHERE AND NON-RHIZOSPHERE
文献类型: 外文期刊
第一作者: Li, Jiabing
作者: Li, Jiabing;Li, Jiabing;Su, Shaowei;Weng, Wenqiu;Yao, Deng;Zheng, Xueping;Zhang, Liyan;Shao, Hongbo
作者机构:
关键词: Ammonium nitrogen;Nitric nitrogen;Rhizosphere;Cyperus malaccensis;Minjiang River estuary
期刊名称:FRESENIUS ENVIRONMENTAL BULLETIN ( 影响因子:0.489; 五年影响因子:0.479 )
ISSN: 1018-4619
年卷期: 2016 年 25 卷 9 期
页码:
收录情况: SCI
摘要: The pilot-scale wetlands system and a specially-made root PVC chamber were used to cultivate Cyperus malaccensis in outdoor to study soil inorganic nitrogen temporal-spatial distribution characteristics in Cyperus malaccensis rhizosphere/non-rhizosphere. The results showed that different parts of Cyperus malaccensis had various interstitial water ammonium nitrogen content with time and space differences, ranging from 0.32 mg/L to 0.32 mg/L. The temporal-spatial distribution variability is the biggest among the non-rhizosphere, rhizosphere, root zone in time and space distribution with relative stability. Nitrate nitrogen in water was less than 0.12 mg/L to trace changes. Inorganic nitrogen of Cyperus malaccensis three partitions in the soil increases gradually over time. The non-rhizosphere distribution change is less than in the root zone and rhizosphere. There are no clear difference between different root system distributions.
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