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首页> 外文期刊>Environmental earth sciences >The streamflow trend in Tangwang River basin in northeast China and its difference response to climate and land use change in sub-basins
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The streamflow trend in Tangwang River basin in northeast China and its difference response to climate and land use change in sub-basins

机译：东北汤王河流域的径流趋势及其对子流域气候和土地利用变化的响应

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摘要

In this study, the hydro-climatic trends (1964-2006) of Tangwang River basin (TRB) were examined using the Kendall's test. Moreover, the impacts of climate variability and land use change on streamflow in each sub-basin were assessed using the Soil and Water Assessment Tools (SWAT) model. The results indicated that annual mean flow and peak flow showed insignificant decreasing trends (-0.14 m~3 s~(-1) year~(-1), 1 %; -8.67 m~3 s~(-1) year~(-1), 40 %), while annual low flow exhibited a slightly increasing trend (0.02 m~3 s~(-1) year~(-1), 11 %). Correspondingly, the annual precipitation for the entire basin decreased by 0.02 mm year~(-2), while the annual means of daily mean, maximum and minimum temperature increased significantly by 0.07,0.10 and 0.02 ℃ year~(-1), respectively. On the other hand, with the implementation of "Natural Forest Protection Project" and "Grain for Green Project", the forests in TRB totally increased by 744.5 km~2 (4.00 %) from 1980 to 2000. Meanwhile, the grasslands and the farmlands decreased by 378.0 km~2 (-1.98 %) and 311.9 km~2 (-1.63 %), respectively. Overall, land use changes played a more important role for the streamflow reduction than climate change for SUB1, SUB2 and SUB3, in which the primary conversions were from grassland, farmland and bare land to forests. Conversely, in SUB4, the influence of climate variability was predominant. The results obtained could be a reference for water resources planning and management under changing environment.
机译：在这项研究中，使用肯德尔检验检验了汤旺河流域（TRB）的水文气候趋势（1964-2006）。此外，使用土壤和水评估工具（SWAT）模型评估了气候变化和土地利用变化对每个子流域河流流量的影响。结果表明，年平均流量和峰值流量没有明显的下降趋势（-0.14 m〜3 s〜（-1）年〜（-1），1％；-8.67 m〜3 s〜（-1）年〜（-）。 -1），40％），而每年的低流量呈小幅增长趋势（0.02 m〜3 s〜（-1）年〜（-1），11％）。相应地，整个盆地的年降水量减少了0.02 mm年〜（-2），而年平均，最高和最低温度的年均值分别显着增加了0.07、0.10和0.02℃年〜（-1）。另一方面，随着“天然林保护工程”和“粮食绿化工程”的实施，TRB的森林从1980年到2000年共增加了744.5 km〜2（4.00％）。同时，草地和农田分别减少了378.0 km〜2（-1.98％）和311.9 km〜2（-1.63％）。总体而言，土地用途的变化在减少河流流量方面比SUB1，SUB2和SUB3的气候变化影响更大，因为SUB1，SUB2和SUB3的主要转化是从草地，农田和光秃秃的土地转变为森林。相反，在SUB4中，气候变化的影响最为明显。研究结果可为环境变化下的水资源规划与管理提供参考。

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  • 来源
    《Environmental earth sciences》 |2013年第1期|51-62|共12页
  • 作者

    Wenbin Liu; Tijiu Cai; Guobin Fu; Aijing Zhang; Changming Liu; Hongzhou Yu;

  • 作者单位

    Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences,Beijing 100101, China Graduate University of Chinese Academy of Sciences,Beijing 100049, China;

    Department of Ecology, Northeast Forestry University,Harbin 150040, China;

    CSIRO, Land and Water, Wembley, WA 6913, Australia;

    School of Hydraulic Engineering,Dalian University of Technology, Dalian 116024, China;

    Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences,Beijing 100101, China;

    Department of Ecology, Northeast Forestry University,Harbin 150040, China;

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  • 正文语种 eng
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  • 关键词

    Hydro-climatic trend; Kendall's test; Land use change; SWAT; Tangwang River basin; Northeast China;

    机译：水文气候趋势;肯德尔的测试;土地用途变化;扑打;汤旺河流域;中国东北;

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