Water resources management in the framework of sustainable development

Μαριολάκος, Ι.

doi:10.1016/j.desal.2006.05.062

Cited by 55 publications

(20 citation statements)

References 1 publication

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“…Water scarcity has become a main challenge for the world with increasing demand resulting from burgeoning population, accelerating economic development, and rapid urbanization [1,2]. Globally, agriculture activities consume the vast majority of freshwater among irrigation withdrawals, representing approximately 70% of total water use, and the ratio is even higher in many developing countries [3].…”

Section: Introductionmentioning

confidence: 99%

Participatory Irrigation Management and Irrigation Water Use Efficiency in Maize Production: Evidence from Zhangye City, Northwestern China

Zhou

Deng

et al. 2017

Water

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Abstract:Water has become increasingly scarce in northwestern China due to climate change, economic growth and burgeoning population. Improving agriculture water use efficiency is of strategic significance in promoting socio-economic water productivity for arid and semi-arid inland river basins. Based on the household-level data collected in Zhangye City, which is located in the middle reaches of Heihe River Basin (HRB) in northwestern China, irrigation water use efficiency (IWUE) of maize is estimated based on stochastic frontier analysis. The impacts of influential factors, especially the participatory irrigation management (PIM) through water user associations (WUAs), on IWUE were further examined. Results show that the estimated average Technical efficiency (TE) and IWUE of maize production are 0.74 and 0.24, respectively. The participation level in irrigation management is very low, with only 40% of the respondents participating in WUA meetings. In addition, most have a relatively superficial understanding of the roles and management scheme of WUAs. Empirical results show that though significantly positive, the magnitude of the impact of PIM on IWUE is relatively small. Households that participated in WUA meetings achieved only 0.002% higher IWUEs than those have never participated in. WUAs are not operating with their designed objectives. Consequently, reform of the traditional management form of WUAs to make them more transparent, fair, and extensively participated in among farmers is in urgently need. In addition, we also find that water price, source of irrigation water, irrigation technology adoption and famers' education level and farming experience also have significant positive impacts on IWUE.

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Section: Introductionmentioning

confidence: 99%

Participatory Irrigation Management and Irrigation Water Use Efficiency in Maize Production: Evidence from Zhangye City, Northwestern China

Zhou

Deng

et al. 2017

Water

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“…Often, increasing water demands due to population growth further aggravate the problem [1]. At the global level, the agricultural sector is the largest consumer of water resources.…”

Section: Introductionmentioning

confidence: 99%

Optimal Irrigation Water Allocation Using a Genetic Algorithm under Various Weather Conditions

Sadati

Speelman

Sabouhi

et al. 2014

Water

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Growing water scarcity, due to growing populations and varying natural conditions, puts pressure on irrigation systems, which often are the main consumptive water users. Therefore, water resources management to improve the allocation of limited water supplies is essential. In this study, a non-linear programming optimization model with an integrated soil/water balance is developed to determine the optimal reservoir release policies and the optimal cropping pattern around Doroudzan Dam in the South-West of Iran. The proposed model was solved using a genetic algorithm (GA). Four weather conditions were identified by combining the probability levels of rainfall, evapotranspiration and inflow. Moreover, two irrigation strategies, full irrigation and deficit irrigation were modeled under each weather condition. The results indicate that for all weather conditions the total farm income and the total cropped area under deficit irrigation were larger than those under full irrigation. In addition, our results show that when the weather conditions and the availability of water changes the optimal area under corn and sugar beet decreases OPEN ACCESSWater 2014, 6 3069 sharply. In contrast, the change in area cropped with wheat is small. It is concluded that the optimization approach has been successfully applied to Doroudzan Dam region. Thus, decision makers and water authorities can use it as an effective tool for such large and complex irrigation planning problems.

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“…Since the 1990s, numerous empirical studies on the effects of urbanization on soil quality (Aparicio and Costa 2007;Tan et al 2003;Sun et al 2006;Zhang et al 2005) and the relationship between ecological environment (Li et al 2007;Hakan and Hakan 2006;Pietropaolo et al 2004), land use (Lebert and Rohde 2007;Kivinen et al 2007;Moscatelli et al 2007), water resource (Mariolakos 2007;Sharma and Shakya 2006), industrialization (Kivinen et al 2007;Li 1996) and economic development (Cohen 2006;Lamptey et al 2005) have been carried out by domestic and foreign researchers, and a good quantity of results have been achieved. With the progress of economic globalization, considerable changes taking place in the regions with rapid urbanization and economic relationships within the regions have caused serious effects on soil characteristics, especially regarding soil nutrients and heavy metal content, and as a result, the regional environment and human health are threatened (Masaka and Muunganirwa 2007;Gao et al 2005;Atkinson et al 2007).…”

Section: Introductionmentioning

confidence: 95%

The impact of urban land expansion on soil quality in rapidly urbanizing regions in China: Kunshan as a case study

Jian

Liu

Bu-zhuo

et al. 2010

Environ Geochem Health

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At a stage of rapid economic development and urbanization in China, most cities are faced with serious problems caused by environment deterioration such as pollution, space press, afforestation degradation, and disordering. Kunshan City, one of the most economically vigorous regions in China, has suffered a more prominent conflict between urbanization and environmental safety. In this paper, urban land expansion in Kunshan City in the Yangtze River Delta was measured with reference to the Landsat data recorded in 1982, 1991, 1995, and 2003 and change in land-use pattern in 1981, 1991, 1995, and 2004 as well as that in nutrients in soils of different purposes between the periods were analyzed to study the effect of urban land-use expansion on soil characteristics. To get a better understanding of soil nutrients, heavy metal content, and pollution, on-the-spot investigation, sampling and laboratory analysis were all conducted, and the geo-accumulation factors and revised Nemerow comprehensive index method were adopted for evaluation of the findings. The results show that the content of organic matter, total nitrogen, rapidly available nitrogen, and available phosphorus in the soil (except available potassium) all increased, and the average content of As, Cd, Cr, Cu, Pb, Ni, Hg, Se, and Zn prove to be 8.61, 0.12, 83.53, 32.49, 29.93, 30.45, 0.27, 0.24, and 93.3 mg kg(-1), respectively, showing degradation in soil quality.

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Water resources management in the framework of sustainable development

Cited by 55 publications

References 1 publication

Participatory Irrigation Management and Irrigation Water Use Efficiency in Maize Production: Evidence from Zhangye City, Northwestern China

Participatory Irrigation Management and Irrigation Water Use Efficiency in Maize Production: Evidence from Zhangye City, Northwestern China

Optimal Irrigation Water Allocation Using a Genetic Algorithm under Various Weather Conditions

The impact of urban land expansion on soil quality in rapidly urbanizing regions in China: Kunshan as a case study

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