河南省内四大流域边界提取与水系分析

魏义长; 许澍; Shah Jahan Leghari; 王同朝; 朱得胜; 王绍业

引用本文:	魏义长,许澍,Shah Jahan Leghari,等.河南省内四大流域边界提取与水系分析[J].灌溉排水学报,0,():-.
	Yichang Wei,Shu Xu,Shah Jahan Leghari,et al.河南省内四大流域边界提取与水系分析[J].灌溉排水学报,0,():-.

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河南省内四大流域边界提取与水系分析
魏义长¹, 许澍¹, Shah Jahan Leghari², 王同朝³, 朱得胜¹, 王绍业¹
1.华北水利水电大学测绘与地理信息学院;2.中国农业大学土地科学与技术学院;3.河南农业大学农学院

摘要:

【背景】绘制流域边界和分析其河流分布特征对水资源管理和保护至关重要。【方法】本研究基于数字高程模型(DEM)数据，利用ArcGIS扩展模块ArcHydro Tools(ArcGIS的一个扩展模块)提取流域的边界和水系，得到了长江、黄河、淮河、海河四大流域在河南省的边界和水系分布图。【结果】结果表明，河南省境内流域面积最大的是淮河流域(占全省面积的52.2%)，依次是黄河流域(21.9%)、长江流域(16.7%)，流域占有面积最小的是海河流域(9.2%)；河网密度最大的是淮河流域(0.068km/km2)，依次是长江流域(0.056km/km2)、西部的黄河流域(0.052km/km2)、海河流域(0.045km/km2)，河网密度最小的是河南东北部的黄河流域(0.036km/km2)；黄河沿岸部分地区(郑州市、开封市等)虽然根据流域性质不属于黄河流域，但其生产和生活用水主要依靠黄河。【结论】因此，黄河对河南省的影响不仅局限于流域内，而且对淮河流域也有影响，河南省应更加重视对黄河的保护和有效利用。

关键词: 水文分析；河南省；数字高程模型；流域边界；水系

DOI：

分类号:P333.9

基金项目:国家重点研发计划(编号：2017YFD0301102-5)；中原科技创新领军人才项目(编号194200510008)

Boundary extraction of the basins and analysis of river system in Henan province

Yichang Wei¹, Shu Xu¹, Shah Jahan Leghari², Tongchao Wang³, Desheng Zhu¹, Shaoye Wang¹

1.College of Surveying and Geo-informatics,North China University of Water Resources and Electric Power,Zhengzhou;2.College of Land Science and Technology,China Agricultural University,Beijing;3.College of Agronomy,Henan Agricultural University,Zhengzhou

Abstract:

【Background】Mapping the boundary and analyzing river distribution characteristics of the basins are critically important for managing and conserving water resources. 【Methods】Based on the digital elevation model (DEM) data, this study used ArcHydro tools, an extension module of ArcGIS, to extract basin boundary and the river systems of the Yangtze River, the Yellow River, the Huaihe River, and the Haihe River in Henan province. 【Results】Results showed that the biggest basin area in Henan province is the Huai river basin (52.2% of the whole province area), in turns are the Yellow River basin (21.9%) and the Yangtze River basin (16.7%), whereas, the smallest occupied area is the Haihe River basin (9.2%). Furthermore, the Huaihe River basin has the highest river network density (0.068km/km2), followed by the Yangtze River basin (0.056km/km2), the Yellow River Basin (0.052km/km2) in western Henan province and the Haihe River Basin (0.045km/km2). The lowest density of the river network is the Yellow River basin (0.036km/km2) in the northeast of Henan province. Although some districts (Zhengzhou city, Kaifeng city, etc.) along the Yellow River do not belong to the Yellow River basin according to the nature of the river basin, their production and domestic water mainly depend on the Yellow River. 【Conclusions】Therefore, the impact of the Yellow River on Henan province is not only limited to the basin, but also on the Huaihe River basin, Henan province should pay more attention to the protection and effective utilization of the Yellow River.

Key words: Hydrological analysis; Henan province, Digital elevation model (DEM); Basin boundary；River system