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首页> 外文会议>International Conference on Agro-Geoinformatics >Trend analysis for blue and green water resources in the Weihe River basin of Northwest China during the past thirty years and in the near future
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Trend analysis for blue and green water resources in the Weihe River basin of Northwest China during the past thirty years and in the near future

机译：西北渭河流域近三十年及近期蓝绿水资源趋势分析

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摘要

Climate change is an important factor affecting the availability of both blue and green water resources. Analyzing changing trends of green and blue water enhances our understanding of the potential influences climate change may have on different water sources, subsequently informing the development of water resources management. In this study, we simulated blue water flow, green water flow and green water storage by using the Soil and Water Assessment Tool (SWAT) at the Weihe River basin. We then analyzed the changing trends from 1972 to 2012 at different spatial scales by using the Mann-Kendall (M-K) and Theil-Sen Median (TSM) methods. The M-K and TSM analyses showed that the green water flow, blue water flow and the green water storage were decreased from 1972 to 2012 at the whole river basin. At the sub-basin level, the change of blue/green water trends varied among locations within a basin. The Hurst exponent results indicated that the blue and green water resources will be decreased at the whole river basin, but their future change will be different at the level of sub-river basin. For the Beiluohe River basin, the blue water flow will continue to increase, while the green water flow and green water storage will decrease. However, the green water storage will continue to increase in the Jinghe River basin, while the blue water flow and the green water flow will decrease.
机译：气候变化是影响蓝色和绿色水资源供应的重要因素。分析绿色和蓝色水的变化趋势有助于我们了解气候变化可能对不同水源产生的潜在影响，从而为水资源管理的发展提供了信息。在这项研究中，我们使用渭河流域的水土评估工具（SWAT）模拟了蓝色水流量，绿色水流量和绿色水存储量。然后，我们使用Mann-Kendall（M-K）和Theil-Sen中位数（TSM）方法分析了从1972年到2012年在不同空间尺度上的变化趋势。 M-K和TSM分析表明，从1972年到2012年，整个流域的绿水流量，蓝水流量和绿水储量都下降了。在次流域水平上，流域内不同位置的蓝/绿水趋势变化不同。赫斯特（Hurst）指数结果表明，整个流域的蓝色和绿色水资源将减少，但在次河流域水平上，它们的未来变化将有所不同。对于北lu河流域，蓝色水流量将继续增加，而绿色水流量和绿色水存储量将减少。但是，the河流域的绿水储量将继续增加，而蓝水流量和绿水流量将减少。

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