Soil and Water Conservation in Semi-arid Areas (FAO soils bulletins) ePub download
by Food and Agriculture Organization of the United Nations
- ISBN: 9251026068
- ISBN13: 978-9251026069
- ePub: 1507 kb | FB2: 1587 kb
- Language: English
- Category: Engineering
- Publisher: Food & Agriculture Organization of the United Nations (FAO) (August 1988)
- Pages: 185
- Rating: 4.2/5
- Votes: 927
- Format: azw doc docx rtf
FAO Soils Bulletins are an historical FAO serie which started in 1965. 57. Soil and water conservation in semi-arid areas, 1987. Chinese English French.
FAO Soils Bulletins are an historical FAO serie which started in 1965. 80. The importance of soil organic matter - key to drought-resistant soil and sustained food production, 2005. Soil management and conservation for small farms: strategies and methods of introduction, technologies and equipment, 2000. 56. Soil management: compost production and use in tropical and subtropical environments, 1987. English French Spanish.
In regions where smaller amounts of biomass are produced, such as semi-arid regions or areas of eroded and degraded soils, cover crops are beneficial as they: Protect the soil during fallow periods.
Keeping the soil covered is a fundamental principle of CA. Crop residues are left on the soil surface, but cover crops may be needed if the gap is too long between harvesting one crop and establishing the next. Cover crops improve the stability of the CA system, not only on the improvement of soil properties but also for their capacity to promote an increased biodiversity in the agro-ecosystem. In regions where smaller amounts of biomass are produced, such as semi-arid regions or areas of eroded and degraded soils, cover crops are beneficial as they: Protect the soil during fallow periods. Mobilize and recycle nutrients.
Soil and water conservation in semi-arid areas. FAO Land and Water Development Division. Food and Agriculture Organization of the United Nations Rome, 1987. Silsoe Associates Ampthill, Bedford United Kingdom. Soil Resources, Management and Conservation Service.
Soil and water are strategic resources that contribute towards food security and the generation of ecosystem services. The General Assembly of the United Nations declared 2015 the International Year of Soils to highlight the importance of this resource. Soil is the thin, fragile surface layer of the land.
Sustainable soil/land management for Climate-Smart Agriculture. Unlike mineral soils, most pristine peatlands are wet during most of the year. Production and Resources. B7 - 1 Sustainable soil and land management and climate change. In semi-arid environments, the cultivation of tropical forest soils causes more than 60 percent of original soil organic carbon stocks to be lost in only a few years (Brown and Lugo, 1990). Converting native vegetation or pastures to cropland depletes soil carbon stocks by 30 percent in less than five years (Zach et a. 2006; Noellemeyer et a. 2008).
Food and Agriculture Organization of the United Nations Water is the most limiting natural resource in agro-ecosystems of arid and semi-arid environments.
Food and Agriculture Organization of the United Nations. To evaluate water infiltration and soil loss, we used a rainfall simulator with a constant rainfall intensity of 7. ± . mm h −1 in plots of . m 2. We carried out 72 rainfall simulations comprising four repetitions in each treatment under vegetation and bare soil. Stable infiltration rate (SIR) ranged from 4. to 7. mm h −1 and 1. mm h −1 under vegetation covers and bare soil, respectively. Water is the most limiting natural resource in agro-ecosystems of arid and semi-arid environments. permanent soil mulch cover with for instance plant residues including stubbles or cover crops to. The arid and semi-arid croplands in this region are vulnerable to different types of soil and environmental degradation, and particularly to degradation caused by intensive tillage, irrigation water mismanagement, and cropping practices, especially in the Aral Sea Basin. Overall, the evidence shows that various CA elements, such as permanent beds, seems to be technically suitable for the major cropping systems and despite the heterogeneous conditions in the region.
Consequently, an integrated approach to soil water management and conservation, where feasible, is considered .
Consequently, an integrated approach to soil water management and conservation, where feasible, is considered more appropriate. This is because the different principles involved in the techniques identified to be compatible would readily complement and strengthen one another. Such a multi-mechanistic approach is expected to result in improved efficacy in conserving water resources in soils and open reservoirs.
FAO Food and Agricultural Organization of the United Nations. Laboratory of Soil Science, Water and Environment. GIS geographic information systems. GSP Global Soil Partnership. MAK-CAES Makerere University – College of Agricultural and Environmental Sciences. MU-CDANR Mekelle University – College of Dryland Agriculture and Natural Resources. There is no need to repeat them here.
Chapter 20 Soil and water conservation around the world Introduction 20-1 Worldwide needs for soil and water conservation 20-2 Transfer of conservation technology 20-3 Food and agriculture organization . Union (1) 2/3 Russian farmland has severe wind and water erosion (2) mountain areas: steep slopes and shallow soils (3) contour plowing, crop rotation, fallowing, stubble-mulching, terracing are used in many areas 6. Iceland (1) covered with glaciers and volcanic rocks: poor soils with overgrazing (2) first nation to establish a soil conservation agency in 1907 (3) a more holistic ecological.