By Christopher J Barrow
An creation to runoff agriculture - a sort of agricultural irrigation - this article describes how using floor and subsurface water, usually ignored and wasted, allows either small farmers and advertisement agriculturists to enhance yields and the protection of harvest, even in harsh and distant environments. The textual content introduces the suggestions and methods, in addition to the demanding situations and the possibility of the the most important procedure, that may give a contribution quite a bit to lowering land degradation and bettering conservation and sustainability.
Read or Download Alternative irrigation: the promise of runoff agriculture PDF
Best water quality & treatment books
Presents a hugely illustrated consultant for designers, installers and contractors engaged on cold and warm water offers. The publication takes account of the 1999 Water rules and British average BS 6700. the hot version takes account of the newest specifications of the development rules and lines a brand new part on sprinkler structures.
This ebook is a part of a chain on sustainability. in particular, it bargains with the problem of sustainable water use. clean assets of potable water are being depleted the world over. natural water is the target of water utilities in addition to numerous industries. well beyond the experimental degree, membrane methods are actually a confirmed and trustworthy approach to supplying high quality, low-cost water.
The problem of water shortage because of inadequate seasonal rainfall and dry spell occurrences in the course of cropping seasons is compounded by way of inefficient agricultural practices via smallholder farmers the place insignificant soil and water conservation efforts are utilized. The speculation of this learn is that the various prior study efforts have taken a fragmented method of take care of the demanding situations dealing with subsistence farmers in rainfed platforms.
Lauded for its enticing, hugely readable type, the best-selling first version grew to become the superior advisor for nonengineers excited about water and wastewater therapy operations. Water and Wastewater remedy: A consultant for the Nonengineering specialist, moment version maintains to supply an easy, nonmathematical account of the unit approaches used to regard either ingesting water and wastewater.
Additional info for Alternative irrigation: the promise of runoff agriculture
In addition, runoff agriculture often uses locally available materials and hand labour, so it can be adopted with little risk of dependence, may spread with limited outside aid and is adaptive. With food production in many developing countries falling, land degradation increasing and uncertainty about future climate changes as a consequence of global warming, runoff agriculture will become much more important. Runoff agriculture had had much less support than mainstream irrigation, in terms of research expenditure, investment in implementation and in extension services.
To sustain agriculture demands, at the very least, adequate moisture, maintenance of soil fertility, avoidance of salinization, prevention of excessive erosion, and control of pests and diseases. Runoff agriculture can do these things in localities where rain-fed agriculture is either not viable or is insufficiently productive or insecure, and where mainstream irrigation would be difficult or uneconomic. The distinction between rain-fed and runoff agriculture is often blurred, as is the difference between flood and wetland agriculture and lift or pump irrigation; often more than one strategy is practiced together.
SWC offers an accessible route to intensifying cropping, livestock rearing or forestry even for smallholders in difficult environments (Tato and Hurni, 1992). It is also possible to achieve SWC through agroforestry, which establishes a vegetation cover that does not return too much moisture to the atmosphere by evapotranspiration and which retards runoff, conserving soils and improving infiltration (Young, 1989). SOIL AND WATER CONSERVATION IN PRACTICE Well-constructed and managed SWC systems can function for centuries and are one of the few proven routes to sustainable agriculture.