Application of Source IMS
This presentation is the property of its rightful owner.
Sponsored Links
1 / 29

Application of Source IMS Lake Tai – China Dave Waters PowerPoint PPT Presentation


  • 234 Views
  • Uploaded on
  • Presentation posted in: General

Application of Source IMS Lake Tai – China Dave Waters. Lake Tai (or Taihu). Lake Tai (or Taihu), is the 3rd largest freshwater lake in China (southern part of Yangtze River delta). Total area of Lake Tai approx. 2,338 km 2 , average depth of 2m

Download Presentation

Application of Source IMS Lake Tai – China Dave Waters

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Application of source ims lake tai china dave waters

Application of Source IMS

Lake Tai – China

Dave Waters


Lake tai or taihu

Lake Tai (or Taihu)

Lake Tai (or Taihu), is the 3rd largest freshwater lake in China

(southern part of Yangtze River delta).

Total area of Lake Tai approx. 2,338 km2, average depth of 2m

The lake provides water to 30 million residents.

Lake Tai has been increasingly polluted due primarily to rapid economic growth and increased population in the basin area


Water crisis in lake tai

Water Crisis in Lake Tai

Large algal bloom outbreaks in Lake Tai since 1990.

The most significant algal bloom broke out in 2007 in Mei Liang Bay near the Wuxi City, and led to the " Wuxi City Water Crisis”.

Wuxi City

Yixing City

Suzhou City

Lake Tai

N

Huzhou City

(Google Earth)


2007 water crisis in lake tai

2007 Water Crisis in Lake Tai

- Water quality worse than Class V of the Surface Water Quality Standard (GB3838-2002).

- Tap water supply in Wuxi City had to be temporarily terminated due to the crisis.

- Led to the development of the Lake Tai Master plan 2008


Project

Project

  • Australian China Environmental Development

    Partnership (ACEDP)

  • 5 year, $25Million Aust Gov. AusAID initiative

  • Aimed at supporting and enhancing Policy development in China

  • Working in areas of mutual interest

    – focus on water resource management


Aus lake tai cluster

Aus Lake Tai Cluster

AUS Cluster Lake Tai Team include:

Earth Systems

Melbourne Water

DSE Victoria

EPA Victoria

Hyder Consulting

Extension Activities:

  • Existing AUS partners +

  • DPI Victoria

  • eWater Cooperative Research Centre

  • Hunter Water Corporation


Chinese lake tai cluster

Chinese Lake Tai Cluster

  • Lake Tai Basin Authority, China

  • Nanjing Institute of Geography and Limnology, Chinese

    Academy of Science (NIGLAS)

  • Environmental Research Institute, Suzhou

  • Agricultural Bureau, Suzhou


The lake tai project

The Lake Tai Project

  • Demonstration of eWater tools November 2010

  • Resulted in a 1 year project - commenced March 2011

  • Workshops China/Australia 2011

  • Base models and scenario development

  • Final meeting January 2012


Working group in china june 2011

Working Group in China June 2011


Visit to australia september 2011

Visit to Australia September 2011


Source ims project objectives

SOURCE IMS PROJECT OBJECTIVES

  • Building capacity within the Chinese working group

  • Apply Source IMS model to a pilot area (Dongshan Peninsula)

  • Model demonstration to improve non point source nutrient management into the lake and inform policy


Model development

Model Development

  • Pilot Area Dongshan Peninsula (82 km2)

  • Modelling water Quantity, Nitrogen, Phosphorus

  • 7 landuse categories of interest

  • Assessing relative contribution for each

    landuse

  • Running a range of scenarios to look at management

    options to reduce nutrient export to Lake Tai


Application of source ims lake tai china dave waters

Lake Tai

N


Application of source ims lake tai china dave waters

Landuse

Upland Trees

High Density Urban

Low Density Urban

Vegetables

Industrial

Aquaculture Ponds


Aquaculture ponds 50

Aquaculture Ponds (50%)


Upland fruit trees 30

Upland Fruit Trees (30%)


Vegetables 6

Vegetables (6%)


High density urban 10

High Density Urban (10%)


Application of source ims lake tai china dave waters

Base Model Built


Modelling challenges

Modelling challenges

  • Data access

  • Data availability

  • Replication of aquaculture pond management

  • Replication of gate closure/pumping of rainfall runoff to lake


Source able to reflect aquaculture pond management

Source able to reflect aquaculture pond management


Canal gates closed at threshold lake level

Canal gates closed at threshold lake level


Pumping to lake tai when gates closed

Pumping to Lake Tai when gates closed


Scenarios

Scenarios

  • Relocation of STP plant

  • Conversion of remaining 20% septics

  • Major wetland construction

  • Improved management of inputs


Total nitrogen load

Total Nitrogen Load


Conclusions

Conclusions

  • Project has provided great exposure for eWater

  • Source IMS flexibility key to success

  • Versatility to be able to model rural/urban and regulated areas and simplicity attractive features to Chinese delegation


Thank you

THANK YOU


The lake tai project1

The Lake Tai Project

Activity Objectives:

Contribute to successful environmental governance mechanisms at Municipal, Province and Basin levels.

Assist greater use of science-based planning, management and interventions to support lake and river basin management to improve lake conditions

3) Contribute to a substantial decrease in the frequency and intensity of algae blooms as a result of specific and modern IRBM, science and management technologies.


  • Login