Temporal and Spatial Variation of Characteristics of Precipitation in Songhua River Basin during 1958-2009

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  • 1. Institute of International Rivers Research Academy, Hohai University, Nanjing 210098, China;
    2. State Key Lab. of Hydrology-Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, China;
    3. College of Hydrology and Water Resources, Hohai University, Nanjing 210098, China

Received date: 2011-06-24

  Revised date: 2011-09-13

  Online published: 2012-06-20

Abstract

In order to illustrate and analyze temporal and spatial variation of characteristics of precipitation in Songhua River Basin, the precipitation data were interpolated by Kriging interpolation method. The Mann-Kendall test was applied to examine the trend of precipitation. The concentration degree and period of annual precipitation were used to analyze the annual distribution of precipitation. The results show that ∶1) In recent 52 years (1958—2009) the annual precipitation shows an indistinctive negative trend. The annual precipitation decreases from eastern part to western part, and most of the basin area show an indistinctive negative trend. 2) The annual precipitation distribution is uneven, occurs mainly from May to September, with June to August being most abundant. The flood-season (from June to September) precipitation occupies 77.65% of the annual precipitation and shows a weak negative trend throughout the basin. 3) The concentration degree of annual precipitation is very high, averaging 0.682, and the concentration degree of southeastern part is smaller than that of northwestern part. The concentration period of annual precipitation is from 181.90° to 187.68°, the annual precipitation is concentrated from 20, July to 26, July, the concentration period of northern part is longer than that of southern part. The concentration degree of annual precipitation shows an indistinctive decreasing trend,while the concentration period of annual precipitation shows a significant decreasing trend.

Cite this article

LU Zhi-hua, XIA Zi-qiang, YU Lan-lan, WANG Jing-cai . Temporal and Spatial Variation of Characteristics of Precipitation in Songhua River Basin during 1958-2009[J]. JOURNAL OF NATURAL RESOURCES, 2012 , 27(6) : 990 -1000 . DOI: 10.11849/zrzyxb.2012.06.010

References

[1] 张运福, 胡春丽, 赵春雨, 等. 东北地区降水年内分配的不均匀性[J]. 自然灾害学报, 2009, 18(2): 89-94.
[2] 张文, 张天宇, 刘剑. 东北降水过程年集中度和集中期的时空变化特征[J]. 南京气象学院学报, 2008, 31(3): 403-410.
[3] 唐蕴, 王浩, 严登华. 近50年来东北地区降水的时空分异研究[J]. 地理科学, 2005, 25(2): 172-176.
[4] 刘胤雯, 赖格英, 陈元增, 等. 梅江河流域年均降雨量空间插值方法研究[J]. 亚热带资源与环境学报, 2007, 2(3): 29-34.
[5] 王兆礼, 陈晓宏, 张灵, 等. 近40年来珠江流域降水量的时空演变特征[J]. 水文, 2006, 26(6): 71-75.
[6] 邵晓梅, 严昌荣, 魏红兵. 基于Kriging插值的黄河流域降水时空分布格局[J]. 中国农业气象, 2006, 27(2): 65-69.
[7] 黄峰, 夏自强, 王远坤. 长江上游枯水期及10月径流情势分析[J]. 河海大学学报: 自然科学版, 2010, 38(2): 129-133.
[8] 穆兴民, 李靖, 王飞, 等. 黄河天然径流量年际变化过程分析[J]. 干旱区资源与环境, 2003, 17(2): 1-5.
[9] 李想, 李维京, 赵振国. 我国松花江流域和辽河流域降水的长期变化规律和未来趋势分析[J]. 应用气象学报, 2005, 16(5): 593-599.
[10] 宋小燕. 松花江流域水沙演变及其对人类活动的响应. 中国科学院研究生院, 教育部水土保持与生态环境研究中心, 2010.
[11] 孟悦. 松花江流域气候年代际变化分析及预测. 兰州: 兰州大学, 2007.
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