Resistance Characteristics of Riparian Plants in South China:A Case Study of Shenzhen River

The water-blocking characteristics of riparian plants are an important factor affecting the flood discharge capacity of the river.Taking the Shenzhen River as an instance,this paper adopts image analysis remote sensing to analyze the changes in the growth range of riparian plants from 2008 to 2018.B...

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Main Authors: ZHENG Shaoping, TONG Xiaolei, HU Haonan
Format: Article
Language:zho
Published: Editorial Office of Pearl River 2023-01-01
Series:Renmin Zhujiang
Subjects:
Online Access:http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2023.08.003
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author ZHENG Shaoping
TONG Xiaolei
HU Haonan
author_facet ZHENG Shaoping
TONG Xiaolei
HU Haonan
author_sort ZHENG Shaoping
collection DOAJ
description The water-blocking characteristics of riparian plants are an important factor affecting the flood discharge capacity of the river.Taking the Shenzhen River as an instance,this paper adopts image analysis remote sensing to analyze the changes in the growth range of riparian plants from 2008 to 2018.Based on the measured flood data and a one-dimensional mathematical model,research combinations of different channel composite roughness are set to quantitatively analyze the influence of the riparian plants on the composite roughness of the river section and then study the degree of influence of riparian plants on flood flow velocity and flood stage.The study shows that from 2008 to 2018,the riparian plants in the middle and lower reaches of the Shenzhen River expanded by nearly 30 m into the river channel.The composite roughness of the river channel increased by about 0.005.In flood conditions of once in 200,100,and 50 years,the water level of the river channel increased by 1.1 m,0.7 m,and 0.5 m,respectively.
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institution Kabale University
issn 1001-9235
language zho
publishDate 2023-01-01
publisher Editorial Office of Pearl River
record_format Article
series Renmin Zhujiang
spelling doaj-art-baed9fe9be0946389257e1158b00077b2025-01-15T02:22:09ZzhoEditorial Office of Pearl RiverRenmin Zhujiang1001-92352023-01-014447637820Resistance Characteristics of Riparian Plants in South China:A Case Study of Shenzhen RiverZHENG ShaopingTONG XiaoleiHU HaonanThe water-blocking characteristics of riparian plants are an important factor affecting the flood discharge capacity of the river.Taking the Shenzhen River as an instance,this paper adopts image analysis remote sensing to analyze the changes in the growth range of riparian plants from 2008 to 2018.Based on the measured flood data and a one-dimensional mathematical model,research combinations of different channel composite roughness are set to quantitatively analyze the influence of the riparian plants on the composite roughness of the river section and then study the degree of influence of riparian plants on flood flow velocity and flood stage.The study shows that from 2008 to 2018,the riparian plants in the middle and lower reaches of the Shenzhen River expanded by nearly 30 m into the river channel.The composite roughness of the river channel increased by about 0.005.In flood conditions of once in 200,100,and 50 years,the water level of the river channel increased by 1.1 m,0.7 m,and 0.5 m,respectively.http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2023.08.003river resistancecomposite roughnessflood control capacityShenzhen River
spellingShingle ZHENG Shaoping
TONG Xiaolei
HU Haonan
Resistance Characteristics of Riparian Plants in South China:A Case Study of Shenzhen River
Renmin Zhujiang
river resistance
composite roughness
flood control capacity
Shenzhen River
title Resistance Characteristics of Riparian Plants in South China:A Case Study of Shenzhen River
title_full Resistance Characteristics of Riparian Plants in South China:A Case Study of Shenzhen River
title_fullStr Resistance Characteristics of Riparian Plants in South China:A Case Study of Shenzhen River
title_full_unstemmed Resistance Characteristics of Riparian Plants in South China:A Case Study of Shenzhen River
title_short Resistance Characteristics of Riparian Plants in South China:A Case Study of Shenzhen River
title_sort resistance characteristics of riparian plants in south china a case study of shenzhen river
topic river resistance
composite roughness
flood control capacity
Shenzhen River
url http://www.renminzhujiang.cn/thesisDetails#10.3969/j.issn.1001-9235.2023.08.003
work_keys_str_mv AT zhengshaoping resistancecharacteristicsofriparianplantsinsouthchinaacasestudyofshenzhenriver
AT tongxiaolei resistancecharacteristicsofriparianplantsinsouthchinaacasestudyofshenzhenriver
AT huhaonan resistancecharacteristicsofriparianplantsinsouthchinaacasestudyofshenzhenriver