Nitrogen Elements Transferring Processes and Fluxes under Different Land Use in West Tiaoxi Catchment

  • 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. Institute of Geography and Limnology, CAS, Nanjing 210008, China;
    3. Institute of Resources Science, Beijing Normal University, Beijing 100875, China

Received date: 2002-02-21

  Revised date: 2002-04-08

  Online published: 2002-07-25

Supported by

Knowledge Innovation Project of CAS, No. KZCX2-310-04-01; the National Key Basic Research Project of China, No. G1999045710


As the main topic of global environmental change, researches on land use/land cover change (LUCC) have been extensively carried out. Effects of land use/land cover changes on regional ecological environment were one of the top concerns recently. By affecting regional material cycling and energy flows, LUCC has great impact on regional climate, soil, rainfall, and water quality. The study of the influences of LUCC on regional environment, especially on process and flux of nutrient elements and heavy metals in catchment scale, is significant to raise and draw up land use polices in accordance with sustainable development strategies. In this study, five typical land covers in West Tiaoxi catchment were studied on nitrogen loss in artificial rainstorm runoff. Triple duplication experiments have been carried out under the artificial rain condition with an intensity of 2 mmin-1 and lasting 32 minutes in a 3 m2 field. Transportation and flux of various species of nitrogen in runoff and sediment were investigated. The results show that nitrogen loss amount and rate are quite different among five kinds of land covers. The loss of total nitrogen in runoff of mulberry is the largest and that of paddy field is the smallest. Particle nitrogen accounts for 70%~90% of total nitrogen in runoff of various kinds of land covers. Loss of dissolved nitrogen in pine trees is much higher than the other kinds of land covers, which are similar among them. More detailed species of dissolved nitrogen show their respective features among various land covers. Total amounts of nitrogen loss from top 10 cm layer of 5 kinds of soils are estimated as high as 4.66-9.40 gm-2, of which nitrogen loss through sediment of runoff accounts for more than 90%. The rate of total nitrogen loss ranges in 2.68-14.48 mgm-2min-1 in runoff, which is much lower than that of 100.01-172.67 mgm-2min-1 in sediment of runoff.

Cite this article

LIANG Tao, ZHANG Xiumei, ZHANG Shen, YU Xingxiu, WANG Hao . Nitrogen Elements Transferring Processes and Fluxes under Different Land Use in West Tiaoxi Catchment[J]. Acta Geographica Sinica, 2002 , 57(4) : 389 -396 . DOI: 10.11821/xb200204002


[1] Li Xiubin. A review of the international researches on land use/land cover change. Acta Geographica Sinica, 1996, 51(6): 553-558.
[李秀彬. 全球环境变化研究的核心领域—土地利用和土地覆被变化的国际研究动向. 地理学报, 1996, 51(6): 553-558.]

[2] Guo Xudong, Chen Liding, Fu Bojie. Effects of land use/land cover changes on regional ecological environment. Advances in Environmental Science, 1999, 7(6): 66-75.
[郭旭东, 陈利顶, 傅伯杰. 土地利用/土地覆被变化对区域生态环境的影响. 环境科学进展, 1999, 7(6): 66-75.]

[3] Novotry V, Olem H. Water quality: prevention, identification and planning. Journal of Water Resource Planning Management, 1993, 119: 306-315.

[4] Ma Lishan. Nitrogen pollution from agricultural non-point sources and its control in water system of Taihu Lake. Chinese Journal of Applied Ecology, 1992, 3(4): 346-354.
[马立珊. 苏南太湖水系农业非点源氮污染及其控制对策研究. 应用生态学报, 1992, 3(4): 346-354.]

[5] Zhu Zhaoliang. Loss of fertilizer N from plants-soil system and the strategies and techniques for its reduction. Soil and Environmental Sciences, 2000, 9(1): 1-6.
[朱兆良. 农田中氮肥的损失和对策. 土壤与环境, 2000, 9(1): 1-6.]

[6] Shen Bing, Wang Quanjiu, Li Huaien et al. Review on the research of agro-chemical compound in soil moving with surface runoff. Bulletin of Soil and Water Conservation, 1995, 15(3): 1-7, 60.
[沈冰, 王全久, 李怀恩 等. 土壤中农用化合物随地表径流迁移研究述评. 水土保持通报, 1995, 15(3): 1-7, 60.]

[7] Zhu Xuan, Lu Jixing, Bian Jinzhong et al. Features of non-point source pollution load in agricultural system and discussion on quantity method on its load in runoff. Environmental Sciences, 1985, 6(5): 6-11.
[朱萱, 鲁纪行, 边金钟等. 农田径流非点源污染特征及负荷定量化方法探讨. 环境科学, 1985, 6(5): 6-11.]

[8] U. Mander, Ain Kull, Valdo Kuusemets, Toomas Tamm. Nutrient runoff dynamics in a rural catchment: Influence of land-use changes, climatic fluctuations and ecotechnological measures. Ecological Engineering, 2000, 14: 405-417.

[9] Yan Wumei. Pollution characteristics of surface water runoff from various types of land use in the Lake Chaohu basin. Resources and Environment in the Yangtze Valley, 1998, 7(3): 274-277.
[阎伍玫. 巢湖流域不同土地利用类型地表径流污染特征研究. 长江流域资源与环境, 1998, 7(3): 274-277.]

[10] Chen Hao, Zhang Shen. A simulation study on loss of nitrogen and phosphorous in loess area. Scientia Geographica Sinica, 1991, 11(2): 142-147.
[陈皓, 章申. 黄土地区氮磷流失的模拟研究. 地理科学, 1991, 11(2): 142-147.]

[11] Zhang Xiumei, Zhang Shen. A simulation research on content variation pattern of nutritious elements and heavy metals in the silt of farmland runoff in Baiyangdian region. In: Study on Water Pollution Control for Baiyangdian Lake Area. Beijing: Science Press, 1995. 101-108.
[张秀梅,章申. 白洋淀地区农田径流中氮磷与重金属元素变化规律的模拟研究. 白洋淀区域水污染控制研究. 北京: 科学出版社, 1995. 101-108.]

[12] Huang Manxiang, Zhang Shen, Tang Yijian et al. Nitrogen losses from farm runoff under simulated rainfall conditions. Soil and Environmental Sciences, 2001, 10(1): 6-10.
[黄满湘, 章申, 唐以剑 等. 模拟降雨条件下农田径流中氮的流失过程. 土壤与环境, 2001, 10(1): 6-10.]

[13] Zhang Xingchang, Liu Guobin, Fu Huifang. Soil nitrogen losses of catchment by water erosion as affected by vegetation coverage. Environmental Sciences, 2000, 21(6): 16-19.
[张兴昌, 刘国彬, 付会芳. 不同植被覆盖度对流域氮素径流流失的影响. 环境科学, 2000, 21(6):16-19.]

[14] Wu Lun, Li Peiwu. Studies on rainfall process, flow-making and nitrogen and phosphorous losses. Acta Scientiae Circumstantiae, 1996, 16(1): 111-116.
[邬伦, 李佩武. 降雨-产流过程与氮、磷流失特征研究. 环境科学学报, 1996, 16(1): 111-116.]

[15] Kang Lingling, Zhu Xiaoyong, Wang Yunzhang et al. Research on nutrient loss from a loessial soil under different rainfall intensities. Acta Pedologica Sinica, 1999, 36(4): 536-543.
[康玲玲, 朱小勇, 王云璋 等. 不同雨强条件下黄土性土壤养分流失规律研究. 土壤学报, 1999, 36(4): 536-543.]