This Highlight reports on the trip, which included a field visit to newly-modernized Shijin irrigation system in Hebei province. If the Shijin system is any guide, three elements of China?s irrigation modernization strategy are: [a] total rehabilitation of old, earthen systems into modern, lined…
In this Highlight, historical antecedents of energy-irrigation nexus in India are examined and it has been found that its genesis lies in policy decision taken over two decades ago to supply unmetered electricity to farmers. This has led to a number of problems, most important of which is lack…
Total Factor Productivity (TFP) measures the growth in output which is not accounted for by inputs. Data Envelopment Analysis which forms the basis for the computation of Malmquist TFP index is used in this paper to study the performance of different river basins in Andhra Pradesh state, India.…
This highlight compares data on wells and tube wells, diesel and electric pumps from four sources, namely, Minor Irrigation Census (MIC), Agricultural Census (Ag), Input Survey (InS) and statistics from State Electricity Boards (SEBs) and/ or the State Statistical Bureaus for four time periods…
Studies from nine states indicate that adoption of micro-irrigation (MI) technologies - drip and sprinkler systems - has a positive impact in terms of water saving, yield and income enhancement at farm level. However, the overall impression among the farmers is that MI is capital intensive and…
Indian Himalayan basins are earmarked for widespread dam building, but aggregate effects of these dams on terrestrial ecosystems are unknown. We mapped distribution of 292 dams (under construction and proposed) and projected effects of these dams on terrestrial ecosystems under different…
High population growth, increasing urbanization and rapid economic development are exerting pressure on the already scarce water resources in India. Treatment and reuse of wastewater can play an important role in addressing some of the urban water challenges. Conventional treatment plants have…
This document updates and builds on the 2004 Guidelines for Water Reuse by incorporating information on water reuse that has been developed since the 2004 document was issued. This document includes updated discussion of regional variations of water reuse in the United States, advances in…
Pterocarpus santalinus L.f. (Red Sanders) is an endemic and endangered species largely confined to the southern portion of the Eastern Ghats, Andhra Pradesh, India. To understand its ecological and geographic distribution, we used ecological niche modelling (ENM) based on field sample-based…
Humanity is facing an enormous challenge in managing water to secure adequate food production. By the middle of this century, the world?s population is projected to reach 9.1 billion, 34 percent higher than today. Nearly all of this increase will occur in developing countries. In order to…
India's National River Linking Project (NRLP), which has been on the drawing board for some three decades, is the largest inter-basin water transfer planned to date in India or elsewhere. The idea has waxed and waned depending upon the political dispensation at any given point in time.…
Low and uncertain crop yields and concentrated poverty in the vast rainfed regions, diminishing returns from the public irrigation systems, climate change induced chaotic fluctuations in the hydrologic regimes and a large demand-supply gap in non-cereal food items are all compelling reasons for…