By Christopher J Barrow
An creation to runoff agriculture - a sort of agricultural irrigation - this article describes how using floor and subsurface water, usually missed and wasted, permits either small farmers and advertisement agriculturists to enhance yields and the safety of harvest, even in harsh and distant environments. The textual content introduces the ideas and methods, in addition to the demanding situations and the opportunity of the an important process, that can give a contribution a lot to lowering land degradation and enhancing conservation and sustainability.
Read or Download Alternative irrigation: the promise of runoff agriculture PDF
Similar water quality & treatment books
A lot of the ease of contemporary existence is living in sheet steel, the cowling defend of such a lot machines and home equipment. even if, the burden that this takes to the air human shoulders needs to be carried somewhere else, and the Earth has borne the weight. many folks awakened to the environmental expense whilst over a century of industrialization ultimately passed the skill of nature to assimilate it.
With expanding premiums of toxins to either land and aquatic environments, rules for the standard of our waters are inevitably turning into extra stringent. within the mild of contemporary epidemiological experiences new standards are being confirmed for the protection of our leisure waters. to ensure that such standards to be constructed a longtime statistical framework has to be in position.
This two-volume set, with cd-rom, contains the lawsuits of the 4th overseas Symposium on Environmental Hydraulics & the 14th Congress of Asia and Pacific department, overseas organization of Hydraulic Engineering and learn held in December 2004 in Hong Kong. quantity 1 covers the chosen papers provided on the 4th foreign Symposium, whereas Volume 2 gains the advances defined in papers from the 14th IAHR-APD Congress.
This e-book goals at stimulating dialogue among researchers engaged on state-of-the-art ways for operational keep watch over and layout of delivery of water at the one hand and researchers engaged on state-of-the-art techniques for shipping over water nevertheless. the most contribution of the e-book as a complete is to offer novel views finally resulting in the administration of an estimated unified administration framework taking the hot advances from either worlds as a baseline.
- Greywater Use in the Middle East: Technical, Social, Economic and Policy Issues
- Water Engineering: Hydraulics, Distribution and Treatment
- Environmental Chemistry of Lakes and Reservoirs
- Distributions and Operators
- Towards Water Wisdom: Limits, Justice, Harmony
- Water resources systems analysis
Extra info for Alternative irrigation: the promise of runoff agriculture
Much of the world's available freshwater runs away or evaporates before it can be used by agriculture or before it recharges groundwater; a large proportion of the waste could be prevented by SWC and runoff agriculture. Investment in these strategies has been comparatively neglected; yet such strategies should: • cost less than large scale irrigation schemes; • help reduce urban migration by improving or sustaining rural livelihoods; • counter soil degradation; • cut dependency because it can use local materials and reduces the need for food import; • help recharge groundwater, reduce flood damage caused by uncontrolled runoff, improve regularity and quantity of streamflow; • help those seeking to conserve flora and fauna.
The success of irrigation is thus hardly surprising and begs the question: what would similar investment yield if directed at runoff or rain-fed agriculture and smallfarmers? The reality is that the runoff and rain-fed agriculture sectors are neglected and, unless attitudes change, efforts to upgrade (to intensify) agriculture will be based on expensive mainstream irrigation which is often poorly adapted to local environments and the needs of many rural people (notably the production of locally available food and the generation of employment) and is seldom sustainable (Tully, 1990).
Roughly 84 per cent of the world's agricultural land is rain-fed and either needs improvement or has potential for improvement. It is important to find alternatives to mainstream irrigation development (mainstream implies large scale and high tech), not only because many localities are unsuitable for it and because of growing competition for available freshwater supplies, but also to reduce pollution and other impacts often associated with established irrigation approaches. These impacts should not be underestimated; there are too many examples of large numbers of people who have suffered socio-economic and health problems, of land degraded and biodiversity destroyed.
Alternative irrigation: the promise of runoff agriculture by Christopher J Barrow