Filtered by: Soil erosion <Back to previous page Agroforestry glossaryAgroforestry growing crops and trees together so that both benefit. Aim broad, long-term, important goal. Boundary a dividing line which marks the… Alley croppingCompiled by Isabel Carter Bible studiesThese Bible studies are designed to use in small groups. They may provide a useful introduction to a meeting where different topics from the Guide… Contour barriersAll kinds of barriers can help to slow down run-off water from rain. This will reduce soil erosion and help to store more water in the soil for the benefit of crops. Contour LinesCompiled by Isabel Carter. These are imaginary lines across a slope which are the same height at all places along the slope. Water cannot flow along a contour line - it is completely level. Most soil erosion control methods are built along the contour lines to have maximum effect. EditorialIt is sadly true that in many parts of the world our parents can remember a very different environment from that of today. Deserts have grown. Fertile land has become poor. People are fighting to overcome these problems in many different ways. Soil erosion has become such a widespread problem that most countries now have government programmes to control erosion, programmes that add to the efforts of the farmers themselves. Erosion controlMany years ago I worked with a group to control very large erosion ditches – sometimes 10 metres across. We used hardwood posts which we sank 1 metre deep into the ground, with the tops level with the original ground level. We planted them in two rows across the ditches and tied wire diagonally between them. We filled the ditch with straw or grass and planted cuttings of willows. As the level of straw and grass fell, we filled it up again. Gully erosionAfter heavy rainfall, water will drain away. If soil conservation methods – such as barriers and plant cover – are not used, the rain water may carry soil with it. Small channels begin. As these grow, they are known as gullies. How soil erosion happensby Mike Carter. Imagine you need to push a loaded cart down a gentle slope. You first have to get the cart moving - this may need quite a hard push. Once the cart is moving, a steady, gentle push may keep it moving down the slope. Getting the cart moving in the first place takes a lot of effort - keeping it moving is easier. How to control soil erosion1. COVER methods These methods all protect the soil from the damaging effects of rain-drop impact. Most will also improve soil fertility. LandslidesLandslides occur when the soil on a slope becomes unstable, and quantities of soil, mud and rock start to move down the slope. They can cause serious damage and are difficult to predict. Objectives and anticipated outcomesObjectives To increase awareness of the benefits of including trees with growing crops as part of sustainable agriculture To raise awareness of the… Our friends the wormsWorms live in the top layer of the soil. They are small creatures, often unnoticed and yet they are very valuable to farmers. They eat plant and animal leftovers, turning them into useful nutrients for plants. With their burrows they allow more air into the soil and improve drainage. Soils with plenty of worms will be fertile Promoting local conservationby Miges Baumann. Anibal and Orelina Correo live in the village of Boliche in Simiatug, Ecuador. They tell their story of their use of new potato varieties developed at the National Institute for Agricultural Research… Soil and water conservation and the communityby Will Critchley and Olivia Graham. Soil erosion - the removal of good soil by wind or water - is a growing problem world-wide. As the world population increases, more pressure is put on land to produce food, fuel and building materials. Trees are removed to grow more crops. Often land is no longer left to rest between cropping. With the removal of trees and forests, there is a direct effect on water supply. Less rainwater is able to soak into the soil and, in some places, wells and springs ... Soil careby John Crossley. Deforestation often leads to erosion. This article shares a method for improving soil fertility for agriculture. The struggle against erosion in MuneneOur area, Kasenga in the southeast of the Democratic Republic of Congo, has had soil erosion problems for a very long time. A large ravine or gully has developed in the main town. Two main roads are today cut through by the growing ravine, many houses are being destroyed and soon access to the central port may be blocked.