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适应气候变化上海水安全 保障的实践 PowerPoint PPT Presentation


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适应气候变化上海水安全 保障的实践. Water security under climate change in Shanghai. 上海市发展改革委秘书长 周强 Zhou Qiang General secretary Shanghai Municipal Development and Reform Commission 2014 年 9 月 5 日. Disclaimer:

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适应气候变化上海水安全 保障的实践

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6420198

Water security under climate change in Shanghai

Zhou Qiang General secretary

Shanghai Municipal Development and Reform Commission

201495

Disclaimer:

The views expressed in this document are those of the author, and do not necessarily reflect the views and policies of the Asian Development Bank (ADB), its Board of Directors, or the governments they represent. ADB does not guarantee the accuracy of the data included in this document, and accept no responsibility for any consequence of their use. By making any designation or reference to a particular territory or geographical area, or by using the term country in this document, ADB does not intend to make any judgments as to the legal or other status of any territory or area.


Outline

Outline

  • Climate change in Shanghai

  • Climate change challenges for water safety in Shanghai

  • Measure and practice for citys water security

  • Future plan


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The unique geographic and climatic pattern

  • Shanghai is located on China's central eastern coast near the mouth of the Yangtze River

  • With rapid urbanization and its unique location, the local circulation is affected by the geographic distribution of Tai Lake, Ocean and enhanced heat island effect due to urbanization


1950 2010

1950-2010

Annual precipitation has decreased during the past 30 years

50

30


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Change of rainfall type

Light rainfall decreased

(%)

Heavy rainfall increased


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Rainfall has significant difference in geographical distribution, with a centralization in the city center.

1()24()


Outline1

Outline

  • Climate change in Shanghai

  • Climate change challenges for water safety in Shanghai

  • Measure and practice for citys water security

  • Future plan


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New challenges for flood prevention in Shanghai

  • 1990


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Increase in typhoon intensity and moving northward of typhoon landfall

  • 200520092012

Landfall moved from border area between Fujian and Zhejiang to north central part of Zhejiang, which brings a significant threat to Shanghai.


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Increase in frequency of short-time strong rainfall

16mm5

Number of hours of Heavy rain in Shanghai(hourly rainfall 16mm)

20139131001644

Traffic was attacked by the storm of 100mm On September 13, 2013

>35.5mm

Spatial distribution of total hours for hourly rainfall>35.5mm in shanghai


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Rising highest tide level

  • 4.655.221997115.724.552.5

Highest tide level in Huangpu Park station since 1950s


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Rising flood water level

19911999

The impact results of fast drain from the flood in upstream need high attention.


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Simultaneity of different kinds of meteorologicaldisasters

2013

The typhoon, storm surge ,flood may occur together and become a big threat to Shanghai.


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The quality of water supply in Shanghai has been significantly affected by the upstream

The water quality of Huangpu river is considerably affected by the upstream of Yangtze River and Tai Lake, which are mainly flow through Jiangsu and Zhejiang Province.


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Other climate change impacts

(salttide aggravates)

The invasion path of salt tide

intake


Outline2

Outline

  • Climate change in Shanghai

  • Climate change challenges for water safety in Shanghai

  • Measure and practice for citys water security

  • Future plan


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Measures and practice for urban inundation control

( The prime work of flooding prevention is to reduce risks of dyke breach, road waterlogging , flooded low-lying area, house collapse, underground space waterlogging, and falling object caused injuries )


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(Five principals, Four defense lines, Five systems)

Measures and practice for urban inundation control


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Five principals

  • (Insist on principle of safety first)

  • (Insist on people oriented)

  • (Insist on chief executive responsibility)

  • (Insist on construction and management)

  • (Insist on corporation between army and public, and regional linkage action)


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Four defense lines

  • (523 Kilometer Seawall)

    523


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Four defense lines

  • (511 Kilometer Embankment)511


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(Regional inundation control)14385263711161910

Four defense lines


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Four defense lines

  • (City Drainage System)3614135/8442222483/492616058


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System of organization and commanding

System of early warning and emergency plan

System of information assurance

System of rescue and relief


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Measures and practice for water supply security

(Assuring public water supply through measures of construction and protection of water source, intensification supply of suburb, strict management of underground water, and water quality improvement, etc. )


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Establish two drinking water sources for Shanghai

2007170201210585/1300


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Water source project

201462014


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Promote intensification supply of suburb urban

20102003152101179


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Improve supplied water quality

2012


Outline3

outline

  • Overview of Shanghai climate change

  • Challenge of climate change on water safety in Shanghai

  • Measure and practice for citys water security

  • Future plan


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Future Plan

Strengthen the research ability of fundamental science, develop and introduce the professional evaluation model

Urban water-logging risk analysis mode

9.13


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Future Plan

Promoting infrastructure construction


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Future Plan

Transformation of Emergency Management to Risk Management


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Thanks for your attention


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