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Policies for water savings in the yellow river basin: a DSS applied to ningxia and shandong

Objective

* To evaluate the potential water savings in the irrigation water supply and distribution systems, and to identify corresponding alternative solutions for improved management;
* to identify improvements in the on-farm irrigation systems in combination with irrigation scheduling which lead to reduced water demand and high yields;
* to evaluate the potential for water reuse and related requirements on environmental and health friendliness;
* to assess drainage and salinity problems, and to identify appropriate measures to control water logging and salinity;
* to assess environmental problems and to evaluate the environmental value of improved soil and water management, as well as the economic and social value of such measures;
* to develop a DSS which could be a tool for multi-criteria analysis of water savings.
Expected Outcome

Given the water shortages occurring in the Yellow River basin due to excessive water withdraws, aggravated when droughts occur, the social-economic benefits of the project shall result from the implementation of water saving measures. The quantification of those benefits is a component of the research proposed. The project does not lead directly to socio-economic and environmental benefits but create an appropriate framework for decision making on water saving.
The key activities involve :
* Field research on several items such as :
a) Supply systems : field research to establish the inflow-outflow balance of the systems, to estimate the time lags between main nodes, to evaluate the operational rules of the regulation structures.
b) Distribution and delivery systems : field research aims at the evaluation of inflow-outflow balances in selected distributors and related delivery characterization. Specific surveys will be performed along the irrigation season in relation to crop demand.
c) Crop demand : field research will resume to collect soils data, crop data and weather data to be used in semi-empirical models like ISAREG and IRRICEP.
d) Drainage to control waterlogging and salinity : field research both in NX and SD, several pilot drainage areas have been established and are being explored, which constitute an important source of data.
e) Water reuse : field research in areas where surface drainage water and return flows are being used for irrigation will be surveyed both on water and soil quality.
f) Environmental impacts and benefits : water quality surveys will be conducted in conjunction with field studies on irrigation (item a, b, c above), and water and soil quality surveys under items d) and e) will also provide appropriate information.
* Desk research - treating the data provided by field research.
* Development of a DSS using field research to build up or calibrate/validate the simulation models to be used to formulate the alternative scenarios, and to define the socio-economics and environmental parameters which will serve to the multi-criteria analysis.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

Universidade Tecnica de Lisboa
Address
Tapada Da Ajuda
1399 Lisboa
Portugal

Participants (8)

Central Soil Salinity Research Institute
India
Address

132001 Karnal - Haryana
Centre National du Machinisme Agricole, du Genie Rural, des Eaux et des Forets
France
Address
Parc De Tourvoie
92185 Antony
Ecole Polytechnique Federale de Lausanne
Switzerland
Address

1015 Lausanne
Institute of Water Conservancy and Hydroelectric Power Research
China
Address

100012 Bei-jing
International Institute for Infrastructural, Hydraulic and Environmental Engineering
Netherlands
Address
7,Westvest
2601 DA Delft
Ningxia Water Conservancy Service - Nigxia Huizu Autonomous Region
China
Address
188,West Jiefang Street
750000 Yinchuan
Shandong Bojili Irrigation District -Binzhou Prefecture, Shandong Province
China
Address
16,Wenmiaco Street
251700 Huimin
Wuhan University of Hydraulic and Electric Engineering
China
Address
8,Donghu Nan Road
430072 Wuhan City