A Study of Variation Character of Soil Nitrogen Compositions under Drainage Condition in Typical Alpine Marsh Wetlands of the Western Sichuan Plateau

YANG Jing-yu; YU Ling-fan; YAN Wu-xian; CAO Xiao-jun; Jia Chen

doi:10.16779/j.cnki.1003-5508.2018.06.002

Aiming to understand the variation character of various nitrogen compositions in typical alpine swamp soil,three sites with different ground water tables in Zoige Plateau were selected as test objects in August 2017, soil samples from different layers(0~20 cm, 20~40 cm, 40~60 cm, 60~80 cm)were determined. The result showed that there was significant vertical variation by soil profile in total nitrogen (TN), effective nitrogen (EN), nitrate nitrogen (NN), organic nitrogen (DON). In different layers, there was regular distribution (PM > SM > GM) by wetland types. Nevertheless, ammonia nitrogen (AN) showed considerable spatial variability and less distribution rules, there was significant positive relationship between any two of soil nitrogen compositions. In conclusion:EN, NN and DON will be of great importance in indicating the alpine swamp wetland degradation.

Sichuan Academy of Forestry, Chengdu 610081, China

Received Date: 2018-11-13

Key words:

Abstract: Aiming to understand the variation character of various nitrogen compositions in typical alpine swamp soil,three sites with different ground water tables in Zoige Plateau were selected as test objects in August 2017, soil samples from different layers(0~20 cm, 20~40 cm, 40~60 cm, 60~80 cm)were determined. The result showed that there was significant vertical variation by soil profile in total nitrogen (TN), effective nitrogen (EN), nitrate nitrogen (NN), organic nitrogen (DON). In different layers, there was regular distribution (PM > SM > GM) by wetland types. Nevertheless, ammonia nitrogen (AN) showed considerable spatial variability and less distribution rules, there was significant positive relationship between any two of soil nitrogen compositions. In conclusion:EN, NN and DON will be of great importance in indicating the alpine swamp wetland degradation.

HTML

Reference (21)

[1]	雷昆,张明祥.中国的湿地资源及其保护建议[J].湿地科学,2005,3(2):81~86.
[2]	王洋,刘景双,孙志高,等.湿地系统氮的生物地球化学研究概述[J].湿地科学,2006(04):311~320.
[3]
[4]	王雪,郭雪莲,郑荣波,等.放牧对滇西北高原纳帕海沼泽化草甸湿地土壤氮转化的影响[J].生态学报,2018,38(07):2308~2314.
[5]	王玉博,赵光影,臧淑英,等.小兴安岭不同类型沼泽湿地土壤碳氮分布特征[J].安徽农业科学,2017,45(04):47~50	,91.
[6]	金宝石,闫鸿远,章文龙,等.互花米草入侵下闽江河口沼泽土壤中各形态氮含量和储量[J].湿地科学,2017,15(03):375~384.
[7]	徐慧博,乔红娟,雷茵茹.中国湿地保护现状问题及对策分析[J].南方农业,2018,12(19):19-20	,23.
[8]	张骁栋,康晓明,李春义,等.排水对三江平原和若尔盖沼泽生态影响的比较[J].生态学杂志,2015(7):2030~2040.
[9]	张明,扎科,王乾,等.若尔盖高寒湿地排水沟壑填堵工程定性评价[J].四川林勘设计,2010(4):15~19.
[10]	张晓云,吕宪国,顾海军.若尔盖湿地面临的威胁、保护现状及对策分析[J].湿地科学,2005,3(4):292~297.
[11]	张昆,田昆,吕宪国,等.纳帕海湖滨草甸湿地土壤氮动态对水文周期变化的响应[J].环境科学,2009,30(8):2216~2220.
[12]	马坤,张颖,唐素贤,等.若尔盖高寒湿地土壤全氮空间分布特征[J].生态学杂志,2016,5(8):1988~1995.
[13]	孙志高,刘景双.三江平原典型小叶樟湿地土壤氮的垂直分布特征[J].土壤通报,2009,40(6):1342~1348.
[14]	肖烨,黄志刚,武海涛,等.三江平原4种典型湿地土壤碳氮分布差异和微生物特征[J].应用生态学报,2014,25(10):2847~2854.
[15]	李丽,高俊琴,雷光春,等.若尔盖不同地下水位泥炭湿地土壤有机碳和全氮分布规律[J].生态学杂志,2011,30(11):2449~2455.
[16]	Kaye J P,Hart S C.Competition for nitrogen between plants and soil microorganisms[J].Trends in Ecology & Evolution,1997,12(4):139~143.
[17]	胡金明,董云霞,袁寒,等.纳帕海湿地不同退化状态下土壤氮素的分异特征[J].土壤通报,2012,3(3):690~695.
[18]	陶宝先,宋长春.氮素形态对泥炭沼泽土壤有机碳矿化的影响[J].生态环境学报,2015(3):372~377.
[19]	马维伟,王辉,李广,等.甘南尕海湿地退化过程中植被生物量变化及其季节动态[J].生态学报,2017,37(15):5091~5101.
[20]	Min K,Kang H,Lee D.Effects of ammonium and nitrate additions on carbon mineralization in wetland soils[J].Soil Biology & Biochemistry,2011,43(12):2461~2469.
[21]	Jones D L,Shannon D,Murphy D V,et al.Role of dissolved organic nitrogen(DON) in soil N cycling in grassland soils[J].Soil Biology & Biochemistry,2004,36(5):749~756.

A Study of Variation Character of Soil Nitrogen Compositions under Drainage Condition in Typical Alpine Marsh Wetlands of the Western Sichuan Plateau

doi: 10.16779/j.cnki.1003-5508.2018.06.002

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

Related

Proportional views