Irrigation

Accordingly, the book is written as a technical manual that remains accessible to people seeking to gain necessary expertise in the planning, design, installation and maintenance of lift irrigation systems (LIS). 

It offers prospective benefits from the agro-environmental management point of view.

Guest post: Ramaswamy R Iyer

This is in response to the comments made by Rahul Banerjee (“National Water Policy”, 13 August 2011) and Chetan Pandit (“Alternative National Water Policy: A Critique”, 10 September 2011) on my article “National Water Policy: An Alternative Draft for Consideration” (25 June 2011).

Epigrammatic Style

This paper published in the Economic and Political Weekly argues that the transformation of human settlements over time can affect the relationship between communities and commons when, for example, social geographies change from rural to urban, or from traditional systems of management to modern bureaucratic systems.

The book covers entire eras from the ancient to the current period. It also gives information about the structural, financial and institutional aspects of tank construction and management.

The full book is available for download on the India Water Portal. Please right-click on the cover page image of the book, and select 'Save link as', to download the full book.

Source: Culture Unplugged

Nor is the introduction of the private sector and the reduction in the role of the government going to help. Rather, the time has come to introduce changes at the basic or the fundamental level in the way in which the water sector functions.

There is an urgent need to bring about reforms in governance by moving towards decentralisation and democratisation, leading to  involvement of people from all the sections of the society, who know and understand that they are responsible for the system and its functioning, as well as by introducing principles of equity and social justice. The papers demonstrate the successful implementation of this approach by describing the experience of Tamil Nadu at democratising water management through introduction of reforms at the level of governance, through involvement of the Tamil Nadu Water Supply and Drainage Board (TWAD).

This article by Kishore C Samal in the Economic and Political Weekly (EPW) discusses how in the natural disater prone state of Orissa the authorities have not been able to draw up an effective disaster management plan and politicians continue to play politics with relief works. It argues that for dealing with these disasters and the relief and rehabilitation work that follows what is needed is the participation of the local community and functionaries of panchayati raj institutions, and coordination with national and international bodies.

It is evident that the domestic resistance to the project was variously compromised by nationalist rhetoric, imperatives of state development and absence of transnational support. The Hirakud dam project has failed on all of its objectives – flood management, hydropower production, irrigation and navigation. Its socio-economic impact has been devastating.

Bagmati river in Kathmandu: From holy river to unthinkable flowing filth

Ajaya Dixit initiated his presentation with a general account of how rivers shape the landscape and how riverine ecosystems have nurtured society and kept civilisations vibrant, cultured and creative. Dixit went on to discuss the basin characteristics of the Bagmati, a tributary of the Kosi that rises in the Shivapuri hills, north of the Kathmandu valley. Around fifteen percent of the basin area (3700 sqkm) lies in Nepal, while the remaining is in India. The average annual rainfall in the basin is 1400 mm and is more than 2000 mm in the hills. Bagmati is a seasonal river with rainfall and springs as its main source. Its mean flow is 15.6 cubic metre/second and low flow is 0.15 cubic metre/second in April.

Kathmandu lies in the Upper Bagmati basin and studies suggest that an ancient lake called the Paleo-Kathmandu lay within the Kathmandu valley as a lacustrine formation. Early settlers lived in lower slopes and used springs and river in the upper reaches. When they moved to the valley floor, they built dongia dharas, which are stone water spouts fed by the unconfined aquifers and delivered water through surface channels. Even today, dongia dharas dated back to 1500 years exist. The state built canals (raj kulo) tapped the upper stretches of the rivers close to the mountains. Rivers and irrigation helped recharge aquifers and ponds.

However, rising urbanisation has damaged these ancient artifacts. Over the last sixty years Kathmandu has expanded massively and its population has increased from 0.41 million in 1951 to 2.6 million in 2011. The city has a huge transient population aside from this, reducing it to a concrete nightmare. Seismologists suggest that Kathmandu is a rubble city in the making. Though the Bagmati river flow has not changed significantly in the last seventy years, the character of the river has been transformed significantly during the period 1970 to 1990. The river has been canalised while the dumping of the city’s garbage into it continues. Dixit identified a plethora of problems faced by the river such as upstream water diversion for drinking water needs, disposal of untreated liquid waste, disposal of solid waste, river jacketing for roads and commercial activities, sand mining and physical encroachment.

The state of the river is an outcome of the current approach to waste management particularly liquid waste management. Three types of waste water namely yellow water flux, grey water and yellow black flux are being generated and flowing water is being used as a vehicle to dispose these. The idea of a water based disposal system e.g. flush toilet embedded in Victorian engineering has led to a technological lock-in with the result that the notion of a natural hydrological cycle has undergone a fundamental transformation.

All the same, the bulk of the load in the river is biological though there are some factories releasing effluents. In the last 20 years some of them have been closed or relocated and the river now stands a chance of being salvaged.