Calculation of Inorganic Nitrogen Fluxes in the Yangtze Estuary Tidal Wetland

  • Key Laboratory of Geo-information Science of the Ministry of Education, East China Normal University, Shanghai 200062, China

Received date: 2006-01-16

  Revised date: 2006-04-15

  Online published: 2006-07-25

Supported by

he Science & Technology Department of Shanghai, No.05DZ12007; No.05JC14059; National Natural Science Foundation of China, No.40571006, No.40131020


Based on the data of inorganic nitrogen fluxes at the sediment-water interface of eleven typical sectional sites in tidal wetland of the Yangtze estuary from 2002 to 2004, we established the inorganic nitrogen fluxes interpolation model and calculating model. Using these models, we studied the spatio-temporal distributing characteristics of inorganic nitrogen fluxes, and calculated the total fluxes in different sectional tidal wetlands and different seasons. The results show: (1) compared to IDS and Ordinary Kriging, the forecast precision of fluxes interpolation is better using revising GIDS interpolation model; (2) the sediment-water exchanges of inorganic nitrogen showed complicated spatial differences and seasonal variations; (3) when using revising GIDS model to interpolate, in order to improve calculating precision of fluxes, the spatial scale should adopt 1.2' ×1.2'; (4) the Yangtze estuary tidal wetland releases inorganic nitrogen fluxes into water in spring, and the releasing quantity is 1.33×104 t. In summer, autumn and winter, Yangtze estuary tidal wetland purifies inorganic nitrogen fluxes from water, and the purifying quantity is 4.36×104 t, 6.81×104 t and 2.24×104 t, separately. All the year round, the Yangtze estuary tidal wetland purifies inorganic nitrogen fluxes from water, tand he purifying quantity is 12.1×104 t; and (5) the purifying ratio is about 23.0%.

Cite this article

WANG Jun, CHEN Zhenlou, WANG Dongqi, XU Shiyuan, BI Chunjuan, LIU Jie . Calculation of Inorganic Nitrogen Fluxes in the Yangtze Estuary Tidal Wetland[J]. Acta Geographica Sinica, 2006 , 61(7) : 729 -740 . DOI: 10.11821/xb200607007


[1] Zhang J. Nutrient elements in large Chinese estuaries. Continental Shelf Research, 1996, 16: 1023-1045.

[2] Shen Zhiliang, Liu Qun, Zhang Shumei et al. The dominant controlling factors of high content inorganic N in the Changjiang River and its mouth. Oceanologia et Limnologia Sinica, 2001, 33(5): 465-473.
[沈志良, 刘群, 张淑美 等. 长江和长江口高含量无机氮的主要控制因素. 海洋与湖沼, 2001, 33(5): 465-473.]

[3] Yan Weijin, Zhang Shen, Wang Jiahui. Nitrogen biogeochemical cycling in the Changjiang drainage basin and its effect on Changjiang River dissolved inorganic nitrogen. Acta Geographica Sinica, 2001, 56(6): 505-514.
[晏维金, 章申, 王嘉慧. 长江流域氮的生物地球化学循环及其对输送无机氮的影响. 地理学报, 2001, 56(6): 505-514.]

[4] Chen Zhenlou, Wang Dongqi, Xu Shiyuan et al. Inorganic nitrogen fluxes at the sediment-water interface in tidal flats of the Yangtze Estuary. Acta Geographica Sinica, 2005, 60(2): 328-336.
[陈振楼, 王东启, 许世远 等. 长江口潮滩沉积物-水界面无机氮交换通量. 地理学报, 2005, 60(2): 328-336.]

[5] Jickells T D. Nutrient biogeochemistry of the coastal zone. Science, 1998, 281: 217-222.

[6] Nedwell D B, Raffaelli D G. Advances in Ecological Research: Estuaries. London: Academic Press, 1999.

[7] Nedwell D B. Inorganic nitrogen metabolism in a eutrophicated tropical mangrove estuary. Water Res., 1975, 9: 221-231.

[8] Billen G, Somville M, Servais P et al. A nitrogen budget of the Scheldt hydrographical basin, Netherlands. Journal of Sea Research, 1985, 19: 233-230.

[9] Law C S. Temporal of denitrification in estuarine sediments. Estuary Coastal Shelf Science, 1991, 33: 37-56.

[10] Ogilvie B, Nedwell D B, Harrison R M et al. High nitrate, muddy estuaries as nitrogen sinks: the nitrogen budget of the River Colne estuary (United Kingdom). Marine Ecology Progress Series, 1997, 150: 217-228.

[11] Trimmer M, Nedwell D B, Sivyer D B et al. Nitrogen fluxes through the lower estuary of the Great Ouse, England: the role of the bottom sediments. Marine Ecology Progress Series, 1998, 163: 109-124.

[12] Nixon S W, Granger S L, Nowicki B L. An assessment of the annual mass balance of carbon, nitrogen and phosphorous in Narragansett Bay. Biogeochemistry, 1995, 31: 15-61.

[13] Stockenberg A, Johnstone R W. Benthic denitrification in the Gulf of Bothnia. Estuarine, Coastal and Shelf Science, 1997, 45: 835-843.

[14] Barnes J, Owens N J P. Denitrification and nitrous oxide concentrations in the Humber estuary, UK, and adjacent coastal zones. Marine Pollution Bulletin, 1998, 37: 247-260.

[15] Berelson W M, Heggie D, Longmore A et al. Benthic nutrient recycling in Port Phillip Bay, Australia. Estuarine, Coastal and Shelf Science, 1998, 46: 917-934.

[16] Beusekom J E, Jonge V N. Retention of phosphorous and nitrogen in the Ems estuary. Estuaries, 1998, 21: 527-539.

[17] Shen Huanting et al. Material Flux of the Changjiang Estuary. Beijing: China Ocean Press, 2001.
[沈焕庭 等. 长江河口物质通量. 北京: 海洋出版社, 2001.]

[18] Shen Zhiliang. Nitrogen biogeochemical cycling in the Changjiang River and its mouth. Marine Science, 2000, 24(11): 10.
[沈志良. 长江和长江口氮的生物地球化学研究. 海洋科学, 2000, 24(11): 10.]

[19] Chen Zhenlou, Liu Jie, Xu Shiyuan et al. Impact of macrofaunal activities on the DIN exchange at the sediment-water interface along the tidal flat of Yangtze Estuary. Environmental Science, 2005, 26(6): 43-50.
[陈振楼, 刘杰, 许世远 等. 大型低栖动物对长江口潮滩沉积物-水界面无机氮交换的影响. 环境科学, 2005, 26(6): 43-50.]

[20] Zhang Xingzheng, Chen Zhenlou, Deng Huanguang et al. Nitrogen fluxes and seasonal change at the sediment-water interface in northern Yangtze River Estuary. Chongqing Environmental Sciences, 2003, 25(9): 31-34.
[张兴正, 陈振楼, 邓焕广 等.长江口北支潮滩沉积物-水界面氮的交换通量及季节变化. 重庆环境科学, 2003, 25(9): 31-34.]

[21] Cao Yaodong. Spatial variation of combined heavy metal pollution of red soils in a hill region. Soils, 2005, 37(2): 140-146.
[曹尧东. 丘陵红壤重金属复合污染的空间变异分析. 土壤, 2005, 37(2): 140-146.]

[22] Tang Qicheng. River Hydrology of China. Beijing: Science Press, 1998.
[汤奇成. 中国河流水文. 北京: 科学出版社, 1998.]

[23] Yuan Xingzhong, Lu Jianjian, Liu Hong. Influence of characteristics of Scirpus mariqueter community on the benthic macro-invertebrate in a salt marsh of the Changjiang Estuary. Acta Ecologica Sinica, 2002, 22(3): 326-333.
[袁兴中, 陆健健, 刘红. 河口盐沼植物对大型底栖动物群落的影响. 生态学报, 2002, 22(3): 326-333.]

[24] Compiling Group of Investigation Report. The Integrated Investigation Report of Island Resource of Shanghai City. Shanghai: Shanghai Science and Technology Press, 1995.
[上海市海岛资源综合调查报告编写组. 上海市海岛资源综合调查报告. 上海: 上海科学技术出版社, 1995.]

[25] Yuan Xingzhong, Lu Jianjian. Ecological characteristics of macrozoobenthic community of tidal flat wetland in the Changjiang Estuary. Resources and Environment in the Yangtze Basin, 2002, 11(5): 414-420.
[袁兴中, 陆健健. 长江口潮滩湿地大型底栖动物群落的生态学特征. 长江流域资源与环境, 2002, 11(5): 414-420.]

[26] Liu Min, Xu Shiyuan. Environmental Biogeochemical Processes and Ecological Risk of POPs in the Yangtze Estuarine Tidal Flat Ecosystem. Beijing: China Environmental Science Press, 2005.
[刘敏, 许世远. 长江口潮滩POPs环境生物地球化学过程与生态风险. 北京: 中国环境科学出版社, 2005.]

[27] Lin Zhonghui, Mo Xingguo, Li Hongxuan et al. Comparison of three spatial interpolation methods for climate variables in China. Acta Geographica Sinica, 2002, 57(1): 47-56.
[林忠辉, 莫兴国, 李宏轩 等. 中国陆地区域气象要素的空间插值. 地理学报, 2002, 57(1): 47-56.]

[28] Feng Zhiming. Optimization of the spatial interpolation methods for climate resources. Geographical Research, 2004, 23(3): 357-364.
[封志明. 气象要素空间插值方法优化. 地理研究, 2004, 23(3): 357-364.]

[29] Ashraf M, Loftis J C, Hubbard K G. Application of geostatistics to evaluate partial station networks. Agric. For. Meteorol., 1997, 84: 225-271.

[30] Dodson R, Marks D. Daily air temperature interpolated at high spatial resolution over a large mountainous region. Climate Res., 1997, 8: 1-20.

[31] Wang Hong, Liu Gaohuan, Gong Peng. Use of Cokriging to improve estimates of soil salt solute spatial distribution in the Yellow River Delta. Acta Geographica Sinica, 2005, 60(3): 511-518.
[王红, 刘高焕, 宫鹏. 利用Cokriging提高估算土壤盐离子浓度分布的精度: 以黄河三角洲为例. 地理学报, 2005, 60(3): 511-518.]

[32] Guo Xudong, Fu Bojie, Chen Liding et al. The spatio-temporal variability of soil nutrients in Zunhua plain of Hebei province: semivariogram and Kriging analysis. Acta Geographica Sinica, 2000, 55(5): 555-566.
[郭旭东, 傅伯杰, 陈利顶 等. 河北省遵化平原土壤养分的时空变异特征: 变异函数与Kriging插值分析. 地理学报, 2000, 55(5): 555-566.]

[33] Nalder I A, Ross W W. Spatial interpolation of climatic Normals: test of a new method in the Canadian boreal forest. Agricultural and Forest Meteorology, 1998, 92: 211-225.

[34] Christopher D. A statistical-topographic model for mapping climatological precipitation over mountainous terrain. Journal of Applied Meteorology, 1994, 33: 140-158.

[35] Zhu Qiu'an. The spatial interpolations in GIS. Journal of Jiangxi Normal University (Natural Science), 2004, 28(2): 183-188.
[朱求安. 基于GIS的空间插值方法研究. 江西师范大学学报(自然科学版), 2004, 28(2): 183-188.]

[36] Pan Yaozhong, Gong Daoyi, Deng Lei et al. Smart distance searching-based and DEM-informed interpolation fo surface air temperature in China. Acta Geographica Sinica, 2004, 59(3): 366-374.
[潘耀忠, 龚道溢, 邓磊 等. 基于DEM的中国陆地多年平均温度插值方法. 地理学报, 2004, 59(3): 366-374.]

[37] Journel A G. (trans. by Hou Jingru, Huang Jingxian). Mining Geologic Statistics. Beijing: Metallurgical Industry Press, 1982.
[Journel A G (侯景儒, 黄竞先 译). 矿业地质统计学. 北京: 冶金工业出版社, 1982.]

[38] Patrick M B, Keller C P. Multivariate interpolation to incorporate thematic surface data using inverse distance weighting (IDW). Computers & Geosciences, 1996, 22(7): 795-799.

[39] Price D T, Mckenney D W, Nalder I A et al. A comparison of two statistical methods for spatial interpolation of Canadian monthly mean climate data. Agric. For. Meteorol., 2000, 101: 81-94.

[40] Li Xin, Cheng Guodong, Lu Ling. Comparison of spatial interpolation methods. Advance in Earth Sciences, 2000, 15(3): 260-265.
[李新, 程国栋, 卢玲. 空间内插方法比较. 地球科学进展, 2000, 15(3): 260-265.]

[41] Aller R C, Mackin J E et al. Early chemical diagenesis, sediment-water solute exchange, and storage of reactive organic matter near the mouth of the Changjiang, East China. Continental Shelf Research, 1985, 4: 227-251.

[42] Shen Zhiliang, Gu Tangxiu. Nitrogen transport fluxes in the Yangtze River. Marine Sciences, 1996, 15(6): 67-69.
[沈志良, 古堂秀. 长江生源要素的输出通量. 海洋科学, 1996, 15(6): 67-69.]

[43] Shen Zhiliang. Nitrogen transport fluxes in the Yangtze River. Advances in Water Science, 2004, 15(6): 752-759.
[沈志良. 长江氮的输送通量. 水科学进展, 2004, 15(6): 752-759.]