Agri Kultuur June / Junie 2018 | Page 22

Depletion and degradation of land and water resources is posing serious challenges to producing enough food and other agricultural products to sustain livelihoods and meet the needs of both rural and urban populations. Since increased food production will have to come from the same limited land and water resources, the focus will have to be on increasing agricultural and water productivity with efficient and optimal use of available resources. This will require adoption of improved agriculture practices, bringing more area under irrigation along with modernisation of existing irrigation systems, institutional reforms and strengthening of irrigated agriculture. In this connection, the role of more enabled Water Users’ Associations (WUAs) in meeting increasing demands in the face of more competitive and volatile markets and increasing (frequencies and intensities) extreme events induced by climate change will be crucial. Globally, about 40% of the world’s total food supply comes from irrigated land and as the population grows, demand for food will also grow (See figure 4). Only a tiny minority of the required increase in food production can come from expanding development of arable land, or by increasing the number and types of crops grown per year. The remaining must be met via yield increases and better water-use efficiency. Figure 4: Cultivated and irrigated areas in the world The Fourth Industrial Revolution—a fusion of cloud-connected technologies, Big Data, and biotech—is changing the way we do business, travel, communicate, and even how we eat and produce food. The agriculture industry has already seen two revolutions of its own, with scientists and manufacturers dabbling in mechanization, plant breeding, and genetics. Now, this technological shift has sparked the AgriKultuur |AgriCulture rise of smart farms and what is being called the Third Green Revolution. The term Green Revolution refers to a series of research, development, and technology transfers that happened between the 1940s and the late 1970s. The initiatives involved: • Development of high yielding varieties of cereal grains • Expansion of irrigation infrastructure 22