Effects of simulated acid rain on NH+4,NO-3,H+ ion fluxes in roots of Oenanthe javanica

doi:10.3969/j.jssn.1000-2006.2012.02.021

JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2012, Vol. 36 ›› Issue (02): 101-105.doi: 10.3969/j.jssn.1000-2006.2012.02.021

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Effects of simulated acid rain on NH⁺₄,NO^-₃,H⁺ ion fluxes in roots of Oenanthe javanica

LUO Ying^1,2, XUE Jianhui^1*, YIN Lu¹, WU Dianming¹

1. College of Forest Resources and Environment, Nanjing Forestry University,Nanjing 210037, China; 2. Department of Engineering and Technology,Xiamen City University, Xiamen 361008, China

Online:2012-04-10 Published:2012-04-10

Abstract

Abstract: Nitrogen is necessary for plant growth of the nutritional elements. To absorb Nitrogen from eutrophicational water by using aquatic plants is important means to ecological restoration. Acid rain has become a serious region environment problem. China is the third acid rain area in the world. It should be further studied that how aquatic plants responded with simulated acid rain, and how acid rain effected on the nutrition cycle of roots. It was significant for the further physiological and ecological studies on the interrelationship between acid rain and aquatic plants in acid rain region. In this study, Oenanthe javanica was selected as research material to study the effects of simulated acid rain on H⁺, NH⁺₄, NO^-₃ fluxes in the roots and root activity among middle eutropher or hyper eutropher. The results showed:(1)O. javanica preference to absorption of NH⁺₄.(2)Compared with the contrast, simulated acid rain reduced H⁺effluxes, receded NH⁺₄ influxes, increased NO^-₃ effluxes, and no significant effect on the root activity.(3)The effect of simulated acid rain on ion fluxes in the roots was enhanced and the root activity was significant deceased among hyper eutropher. To conclude that acid rain affected the absorption of Nitrogen ions fluxes and advanced eutrophication level would strengthen the influence of acid rain.

CLC Number:

S718

LUO Ying, XUE Jianhui, YIN Lu, WU Dianming. Effects of simulated acid rain on NH⁺₄,NO^-₃,H⁺ ion fluxes in roots of Oenanthe javanica[J]. JOURNAL OF NANJING FORESTRY UNIVERSITY, 2012, 36(02): 101-105.

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Effects of simulated acid rain on NH⁺₄,NO^-₃,H⁺ ion fluxes in roots of Oenanthe javanica

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