Flood control and shrinkage in the Haihe River Mouth

Hu, Shixiong; Wang, Zhao Yin; Lee, Joseph Hun Wei

doi:10.1007/bf02884832

Cited by 6 publications

(2 citation statements)

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“…The serious problems facing the river network in the lower reaches of the Hai River basin also validate this conclusion. The lower reaches of the Hai River basin have serious ecological problems, with the river network often in a state of disconnection and little water flowing out of the estuary, resulting in the severe shrinkage of many estuaries (Hu et al, 2001).…”

Section: Correlation Between River Network Patterns and Topography In...mentioning

confidence: 99%

Study on the correlation between river network patterns and topography in the Haihe River basin

Xingyuan

Fawen²

2023

Front. Earth Sci.

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In recent decades, the river network patterns (RNPs) in China’s Haihe River basin have changed dramatically, and the topology of the river network has become increasingly complex. It is important to quantitatively study the correlation between river network patterns and topography (CRNPT) and the changes in the correlation. In this paper, the Haihe River basin was spatially gridded (4 km × 4 km), and different geomorphological areas were extracted for a multiarea study. We selected topographic and river network indicators and proposed new indicators to characterize regional topographic ‘stressfulness’ and then used redundancy analysis for correlation studies. The results showed that the variance of RNP explained by topography was 53.39%. The combined contribution of the topographic wetness index (TWI) and topographic wetness stress index (TSI) ranged from 35.66% to 78.29% in multiple areas, and the TSI showed stronger explanatory power. The regional effect of the CRNPT was significant, with mountains and transition areas having higher effects than plain areas. Compared to the natural river network, the CRNPT of the current river network was significantly lower. Among the RNP indicators, the artificial channel proportion (Pac) had the highest proportion of variance, and the CRNPT was strongly influenced by artificial channels. Artificial channels changed the consistency of topography with the RNP and reduced the topographic interpretation of the RNP, which may weaken the stability and hydrological connectivity of the river network. The variation in interpretation was related to the distribution of artificial channels, which showed a logarithmic function relationship between them.

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Section: Correlation Between River Network Patterns and Topography In...mentioning

confidence: 99%

Study on the correlation between river network patterns and topography in the Haihe River basin

Xingyuan

Fawen²

2023

Front. Earth Sci.

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“…Binhai New Area is located in the downstream of the Haihe River basin (38°40′-39°00′E, 117°20′-118°00′N), the west coast of Bohai Bay. It is one of the district of Tianjin city which is the third largest city of China, with a population of 2.02 million, an area of 2,270 km 2 and a coastline of 153 km [2][3] . With the regional economic development, land use structure undergos dramatic changes, which brings a series of urban economic and environmental problems, land use and sustainable development presented a huge challenge [4].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Land Use Change in Binhai New Area Based on Remote Sensing Images

Xia

Zheng

Zhao

2014

AMR

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Based on the TM remote sensing images in autumn 1992, 2001 and 2009, the land use change of Binhai New Area is analyzed through the ENVI software. During remote sensing images processed, Binhai New Area is collected according to the administrative zoning maps. The results of land use change are vegetation cover and water changing little, which show the ecological environment remained stable in overall Binhai New Area. At that time, the area of unused land and salt works area is reduced, and the area of land reclamation and construction sites is increased, which indicates the rapid economic development of Binhai new area in past 20 years.

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