Irrigation water pricing policy for water demand and environmental management: a case study in the Weihe River basin

Water Policy ◽  
2013 ◽  
Vol 15 (5) ◽  
pp. 816-829 ◽  
Author(s):  
Fanus Asefaw Aregay ◽  
Zhao Minjuan ◽  
Zahra Masood Bhutta
Keyword(s):  
River Basin ◽  
Irrigation Water ◽  
Environmental Sustainability ◽  
Water Demand ◽  
Water Pricing ◽  
Pricing Policy ◽  
Weihe River ◽  
Weihe River Basin ◽  
The Impact ◽  
Irrigation Water Pricing

Irrigated agricultural production is the backbone of the Chinese agricultural sector, but the increasing demand for irrigation water, its inefficient utilization and overuse of chemical inputs, accompanied by the short supply of water resources have endangered the nation's agricultural and environmental sustainability. The Chinese government has proposed a water pricing policy with the expectation of improving the efficiency of utilizing irrigation water and fertilizer, to mitigate these problems. With the main objective of this paper being to assess the impact of this policy on water demand and environmental sustainability, a positive mathematical programming model was adopted to simulate different irrigation water pricing scenarios based on farm-level primary data from three irrigation districts along the Weihe River basin. The main parameter for assessing water demand was the change in total water consumption relative to the base year, while change in fertilizer consumption and water demand was determined to evaluate the impact of pricing policy on environment sustainability. According to the results, irrigation water demand and fertilizer consumption were mostly price inelastic to water pricing. This implies that water pricing policy can have only a minor role in regulating the water demand and environment in the region even when the base-year water price is doubled.

scholarly journals Analysing the influence of human activity on runoff in the Weihe River basin

2015 ◽  
Vol 368 ◽  
pp. 269-274
Author(s):  
C. Shen ◽  
H. Qiang
Keyword(s):  
Economic Development ◽  
River Basin ◽  
Human Activity ◽  
Principal Component ◽  
Agricultural Activity ◽  
Exponential Relationship ◽  
Weihe River ◽  
Grey Relational ◽  
Weihe River Basin ◽  
The Impact

Abstract. Changing runoff patterns can have profound effects on the economic development of river basins. To assess the impact of human activity on runoff in the Weihe River basin, principal component analysis (PCA) was applied to a set of 17 widely used indicators of economic development to construct general combined indicators reflecting different types of human activity. Grey relational analysis suggested that the combined indicator associated with agricultural activity was most likely to have influenced the changes in runoff observed within the river basin during 1994–2011. Curve fitting was then performed to characterize the relationship between the general agricultural indicator and the measured runoff, revealing a reasonably high correlation (R2 = 0.393) and an exponential relationship. Finally, a sensitivity analysis was performed to assess the influence of the 17 individual indicators on the measured runoff, confirming that indicators associated with agricultural activity had profound effects whereas those associated with urbanization had relatively little impact.

Irrigation water pricing: policy implications based on international comparison

2004 ◽  
Vol 9 (6) ◽  
pp. 735-755 ◽  
Author(s):  
YACOV TSUR ◽  
ARIEL DINAR ◽  
RACHID M. DOUKKALI ◽  
TERRY ROE
Keyword(s):  
Income Distribution ◽  
Water Use ◽  
Irrigation Water ◽  
Water Pricing ◽  
Policy Implications ◽  
Pricing Policy ◽  
Efficient Water Use ◽  
Pricing Schemes ◽  
Policy Discussion ◽  
Irrigation Water Pricing

This paper is concerned with the regulation of irrigation water via pricing. The main concepts underlying efficient water use are first discussed and then applied in actual practice to demonstrate empirically how readily available data can be used to implement pricing schemes that achieve efficient allocation of water. The policy discussion includes also equity considerations. The empirical findings, however, reveal that water prices have a small effect on income distribution within the farming sector, thereby supporting the view that water pricing should be designed primarily to increase the efficiency of water use, leaving income distribution considerations to other policy tools.

Irrigation Water-Pricing Policy

2016 ◽  
pp. 217-235
Author(s):  
Jinxia Wang ◽  
Qiuqiong Huang ◽  
Jikun Huang ◽  
Scott Rozelle
Keyword(s):  
Irrigation Water ◽  
Water Pricing ◽  
Pricing Policy ◽  
Irrigation Water Pricing

scholarly journals Assessing effects of climate change on irrigation water demand in the Lombok River Basin, Indonesia

2021 ◽  
Vol 930 (1) ◽  
pp. 012061
Author(s):  
A W W Saputra ◽  
N A Zakaria ◽  
N W Chan
Keyword(s):  
Climate Change ◽  
River Basin ◽  
Irrigation Water ◽  
Water Demand ◽  
Irrigation Efficiency ◽  
Command Area ◽  
Efficiency Improvement ◽  
Water Requirements ◽  
Irrigation Water Demand ◽  
The Impact

Abstract Irrigation water demand in the command area is affected by rainfall and climate conditions in the river basin. In climate change conditions, rainfall and temperature are predicted to increase and projected to impact irrigation water requirements significantly. Therefore, understanding the climate change effects on irrigation demand in the command area is significant to the river basin manager and planner for managing water resources effectively. This study aims to predict the impact of climate change and irrigation efficiency improvement on the irrigation water requirement in 2032-2040. This study used the CropWat model to estimate irrigation water requirements in 1995-2005 and 2032-2040. Irrigation water demand in the Dodokan watershed as a part of the Lombok river basin was computed using the historical rainfall and climate data from observation stations. Further, the observed data from 2006 to 2014 were projected into climate change in 2032-2040 as an input for the model to predict the demand in corresponding years. Result suggests that the change of annual irrigation water demand in the Dodokan watershed was expected to rise by 1.61% in 2032-2040 compared with 1995-2005, and irrigation efficiency improvement effort would decrease the demand -18.18% in the climate change period.

scholarly journals Impacts of Climate Change on Irrigation Water Management in the Babai River Basin, Nepal

Hydrology ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 85
Author(s):  
Yogendra Mishra ◽  
Mukand Singh Babel ◽  
Tai Nakamura ◽  
Bhogendra Mishra
Keyword(s):  
Climate Change ◽  
River Basin ◽  
Low Income ◽  
Irrigation Water ◽  
Water Demand ◽  
General Circulation ◽  
General Circulation Models ◽  
Spring Discharge ◽  
Impact Of Climate Change ◽  
The Impact

The diminishing spring discharge in the Middle Mountain Zone (MMZ) in Nepal is a matter of concern because it directly affects the livelihoods of low-income farmers in the region. Therefore, understanding the impacts of changes in climate and land-use patterns on water demand and availability is crucial. We investigated the impact of climate change on streamflow and environmental flow, and the demand for spring-fed river water for irrigation using the limited meteorological data available for the Babai River Basin, Nepal. SWAT and CROPWAT8.0 were used to respectively calculate present and future streamflow and irrigation water demand. Three general circulation models under two representative concentration pathways (RCPs 4.5 and 8.5) for the periods of 2020–2044, 2045–2069, and 2070–2099 were used to investigate the impact of climate change. Results indicate that the catchment is likely to experience an increase in rainfall and temperature in the future. The impact of the increment in rainfall and rise in temperature are replicated in the annual river flow that is anticipated to increase by 24–37%, to the historical data of 1991–2014. Despite this increase, projections show that the Babai River Basin will remain a water deficit basin from January to May in future decades.

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