地理科学 ›› 2002, Vol. 22 ›› Issue (1): 57-62.doi: 10.13249/j.cnki.sgs.2002.01.57

• 论文 • 上一篇    下一篇

近几十年来西北江三角洲网河区顶点的河相关系

贾良文1, 杨清书2, 钱海强3, 罗宪林2, 罗章仁2, 杨干然2   

  1. 1. 广东省航道局, 广东, 广州, 510115;
    2. 中山大学河口海岸研究所, 广东, 广州, 510275;
    3. 广东省水文局三水水文站, 广东, 三水, 528133
  • 收稿日期:2001-02-13 修回日期:2001-06-16 出版日期:2002-01-20 发布日期:2002-01-20
  • 基金资助:
    交通部"九五"重点科技攻关项目"珠江三角洲航道网水沙及数学模型研究"(编号:95-05-01-53)之Ⅱ级课题"珠江三角洲主要水道河床演变研究"的部份内容

Variations in At-a-Station Hydraulic Geometry of the Pearl River Delta in Recent Decades

JIA Liang-wen1, YANG Qing-shu2, QIAN Hai-qiang3, LUO Xian-lin2, LUO Zhang-ren2, YANG Gan-ran2   

  1. 1. Guangdong Channel Bureau, Guangzhou, Guangdong 510115;
    2. Institute of Estuarine and Coastal Research, Zhongshan University, Guangdong 510275;
    3. Sanshui Hydrometric Station, Guangdong Hydrological Bureau, Sanshui, Guangdong 528133
  • Received:2001-02-13 Revised:2001-06-16 Online:2002-01-20 Published:2002-01-20

摘要: 据西北江三角洲网河区顶点马口、三水两水文站1959~1988年的实测大断面、流量、流速和水位资料,采用Leopold的水力几何形态关系建立断面河相关系,探讨两水文观测断面的河相关系特征、年际变化及河相关系的差异.河相关系表明,西北江三角洲的断面水力几何形态指数β1值相对较小,而β3值相对较大,代表了珠江特有的丰水少沙河流的河相关系.

Abstract: Hydrological data of Sanshui and Makou hydrometric stations were collected in the Pearl River Delta. Hydraulic geometry represents the regulation of flow and channel. Hydraulic geometry was used to analyse the at-a-station hydraulic geometry. It was shown that the change in discharge (Q) with river width (B), mean depth(h), mean velocity(U) at the Sanshui cross section differ from those at Makou cross section. The characteristics of the at-a-station hydraulic geometry in the Pearl River Delta indicated that the exponent value β1 is much less and β3 is much greater than that of the Yellow River and the Yangtze River.

中图分类号: 

  • P332.3