Irrigation Sustainability Assessment of Selected Projects in Tha Chin Basin, Thailand

Abstract

This study assesses the sustainability of the Kamphaengsaen (KPP) and Phophraya (PPP) projects located in the Tha Chin Basin, Thailand. The assessment is based on the investigation of sustainability indicators using principal component analysis. The dominant indicators affecting sustainability are identified. The key indicators are weighted and computed to obtain the irrigation sustainability index (ISI) used to classify the sustainability into five levels. The results for KPP show net farm income, awareness on irrigation water use, matching of water delivery schedule and agricultural operation, and field application ratio being the major sustainability indicators. For KPP, six zones show a very low sustainability level; five zones are low; 11 zones are medium; four zones are high and one zone very high. Four key indicators are found in PPP, including perception of drained water quality, satisfaction on adequacy of water distribution, field application ratio, and net farm income. For PPP, one zone shows a very low sustainability level; three zones are low; five zones are medium; one zone is high and one very high. The ISI developed may also help stakeholders and policy makers to understand the roles, influences and implications of the key indicators towards sustainable management of the irrigation sector in the country. Copyright # 2010 John Wiley & Sons, Ltd. A KPP, six zones ont un IDI très faible; cinq en ont un faible; 11 zones ont un IDI moyen; quatre zones ont un IDI élévé, et une, un très élevé. Quatre indicateurs majeurs sont identifiés à PPP: la perception (par les irrigants) de la qualité de l'eau de drainage, leur satisfaction sur l'adéquation entre distribution de l'eau et besoins, l'efficience d'application au champ, et le revenu net par exploitation. A PPP, une zone a un IDI très faible; trois zones en ont un faible; cinq zones ont un IDI moyen; une zone en a un élevé, et une autre un très élevé. Les index IDI ainsi développés peuvent aider les gestionnaires et les acteurs politiques de l'irrigation à mieux comprendre les indicateurs les plus importants pour la durabilité des systèmes irrigués, leurs rôles, et les implications en terme de gestion durable de ces systèmes.

Income Groups, Social Capital, and Collective Action on Small‐Scale Irrigation Facilities: A Multigroup Analysis Based on a Structural Equation Model

“…Therefore, collective action may possibly be enhanced in different ways by farmers of different income groups. Tiewtoy et al () explain this disparity by arguing that farmers are often motivated to use special components of social capital to maximize their personal benefits in a collective environment. In this regard, differences in income have leveraging effects that encourage farmers to allocate their social capital components in an efficient way.…”

Governance of the irrigation commons under integrated water resources management – A comparative study in contemporary rural China

“…One explanation may be the incomplete understanding of how to tailor programs to build or make effective use of social capital based on differences in the implications of social capital (Ghazouani et al, 2012). Alternatively this may be due to the fact that stakeholders with their individual identity, often are motivated to use social capital in their personal benefits even in a collective environment (Tiewtoy et al, 2011). Moreover much of the focus has been one-sided, looking at intrinsically positive aspects as a built-in mechanism ensuring cooperative behaviours and collective action (Ostrom, 1990;Uphoff, 2000), while few studies have paid attention to the diverse outcomes of localized uses of collective action and social capital.…”

Valoración de la sostenibilidad del sistema de riego localizado de alta frecuencia del minidistrito de riego ASOLABELLA, Municipio de Pereira

“…Se estableció a partir de 5 niveles de sostenibilidad siguiendo el método de agrupación de intervalos de clases iguales referenciado por Tiewtoy (2011). Estos niveles de sostenibilidad se definieron en cada predio después de realizar el análisis multicriterio.…”

“…Una vez obtenido el valor del índice de sostenibilidad para cada predio se procedió a realizar la estimación estadística respectiva siguiendo a Tiewtoy (2011) 9…”