Temporal Evolution of Water Environment in Huaihe Eco-Economy Belt under Global Warming
气候变暖背景下淮河生态经济带水环境演变特征
作者: 郑玲王军王怀军潘莹萍张云
作者单位: 1淮阴师范学院城市与环境学院,江苏 淮安
刊名: Geographical Science Research, 2018, Vol.07 (02), pp.148-156
中文刊名: 地理科学研究, 2018, Vol.07 (02), pp.148-156
来源数据库: Hans Pubs Journal
DOI: 10.12677/GSER.2018.72020
英文摘要: Based on the meteorological and water resources data of Huaihe basin from 1960 to 2014, this paper analyzes the hydrological changes and evolution characteristics of water quality in Huaihe eco-economy zone. The main conclusions are as follows: 1) Temperature increased significantly, and precipitation did not change obviously. The cold extremes showed a significant decrease trend, warm extremes being an increase trend, and the precipitation extreme showed no obvious change. There was no significant change in drought/flood indices at the annual and seasonal scale; 2) The total amount of water resources was fluctuated with the change of precipitation. The quantity of wastewater emissions showed a significant increasing trend, while the COD emissions have reduced. The proportions of I, II...
中文摘要: 本文基于1960~2014年气象数据以及1998~2014年淮河流域水资源公报数据,对淮河生态经济带水文情势和水质演变特征进行了分析。主要结论如下:1) 气温表现为显著上升趋势,降水量变化不显著。冷极值呈显著下降,暖极值呈波动上升趋势,降水极值表现为不显著变化;年与季节旱涝指数无显著变化趋势;2) 水资源总量随降水变化呈波动变化。废水排放量呈显著增长趋势,化学需氧量(COD)排放量减少。I、II、III类水的比重增加,IV和V类水的比重减少,水质总体向好,但污染仍然较为严重。
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