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Monday, May 18, 2020 | History

2 edition of Effects of traditional land transactions on soil erosion and land degradation found in the catalog.

Effects of traditional land transactions on soil erosion and land degradation

R. C. Leduka

Effects of traditional land transactions on soil erosion and land degradation

by R. C. Leduka

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Published by Land Tenure Transformation Project, Institute of Southern African Studies, National University of Lesotho in Roma, Lesotho .
Written in English

    Places:
  • Africa, Southern.
    • Subjects:
    • Land use -- Africa, Southern.,
    • Soil erosion -- Africa, Southern.,
    • Environmental degradation -- Africa, Southern.

    • Edition Notes

      Includes bibliographical references (p. 47-48).

      Statementby R.C. Leduka.
      SeriesResearch report ;, no. 31, Research report (National University of Lesotho. Institute of Southern African Studies) ;, no. 31.
      Classifications
      LC ClassificationsHD994 .L43 1998
      The Physical Object
      Paginationv, 48 p. ;
      Number of Pages48
      ID Numbers
      Open LibraryOL146042M
      LC Control Number99892775

      In land use planning and management, considering the impacts of land use changes on factors such as soil erosion can support long-term agricultural sustainability, as shown by a study of Wadi Ziqlab, a dry area in the Middle East where farmers graze livestock and grow olives, vegetables, and grains. The U.S. food system (described in Chapter 2) is widely recognized to have direct and indirect effects on the environment. The degree to which each sector of the food system affects the environment depends on a variety of natural and human-driven processes. For example, increased use of mineral fertilizers is responsible for much of the growth in productivity in U.S. agriculture over the past Author: Malden C. Nesheim, Maria Oria, Peggy Tsai Yih, Nutrition Board, Board on Agriculture.

      An assessment of slope erosion at Tin Camp Creek catchment, Arnhem Land, Northern Territory, Australia, was carried out using the fallout environmental radioisotope caesium‐ ( Cs) as an indicator of soil erosion status, two numerical models (SIBERIA and the Revised Universal Soil Loss Equation (RUSLE)) and erosion undisturbed drainage basin is situated in the seasonally wet Cited by: Campos AC, Etchevers JB, Oleschko KL, Hidalgo CM () Soil microbial biomass and nitrogen mineralization rates along an altitudinal gradient on the Cofre de Perote Volcano (Mexico): the importance of landscape position and land Degradation & Developm – | Soil microbial biomass and nitrogen mineralization rates along an altitudinal gradient on the Cofre de Perote Cited by: 2.

        Goals / Objectives Determine and evaluate effect of soil properties, profile, surface conditions on soil, sediment and water movement on upland areas. Identify and develop environmentally friendly, economically profitable and soil erosion control effective land and cropping management systems and practices for watershed scale adoption and TMDL reductions. Human impact on the environment or anthropogenic impact on the environment includes changes to biophysical environments and ecosystems, biodiversity, and natural resources caused directly or indirectly by humans, including global warming, environmental degradation (such as ocean acidification), mass extinction and biodiversity loss, ecological crisis, and ecological collapse.


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Effects of traditional land transactions on soil erosion and land degradation by R. C. Leduka Download PDF EPUB FB2

Land degradation assessment in dry lands (LADA), Manual for local level assessment of land degradation and sustainable land management, Roma FAO (c) The land resource base Jan Fao.

Enhancing crop yields in the developing countries through restoration of the soil organic carbon pool in agricultural lands. Lal; Land Degradation & Development; Pages: ; First Published: 3 August Land degradation is a global challenge that affects everybody through food insecurity and higher food prices, through climate change and environmental hazards, and through the loss of biodiversity and ecosystem services.

Although there is a link between land degradation and conflict, we should be careful not to blame the victims. The destabilizing effects of soil erosion resulting from agricultural activities cannot be evaluated by soil erosion process studies alone.

The rate of soil formation must be known so that maximum Author: Hans Hurni. Soil erosion in sloping vineyards under conventional and organic land use managements (Saar-Mosel Valley, Germany) German vineyards are one of the land uses most prone to soil erosion.

Due to their placement on mainly steep slopes and non-conservative cultivation practices, runoff and soil loss are a serious problem for wine by: In these and other parts of the region, the challenge to all soil erosion and land degradation scientists is to develop more purposeful studies which carry out high quality science, in the places where it matters, for long enough to gain adequate understanding to be able to make reliable erosion forecasts at the management : Ian Douglas.

Abstract. Sub-Saharan Africa (SSA) has experienced the most severe land degradation in the world. Given that livelihoods of the majority of the rural poor heavily depend on natural resources, countries in the region have designed a number of policies and strategies to address land degradation and to enhance by: Today, land degradation is still a major concern in South Africa, and the awareness of the problem and attitudes toward it have changed little over the past century.

Soil erosion is viewed as a result of overpopulation, overgrazing, and poor agricultural practices (Critchley and Netshikovhela, ).Cited by: As an example, many archaeologists are concerned about the effects of soil surface lowering through erosion and the consequential impacts of deeper ploughing on archaeological features.

The publication of this third edition of Roy Morgan’s book Soil Erosion and Conservation is thus very timely and reflects the wider concerns regarding the issue. The reason for this is CA’s documented ability to reduce land degradation, soil erosion and to reduce fuel costs.

Implementing CA in a country with prevailing low-input smallholder agriculture, such as Bosnia and Herzegovina (BH), could thus have a potential to stabilise crop yields and improve soil conditions, while being less labour Cited by: 5.

Land degradation and declining soil fertility are critical problems affecting agricultural productivity and human welfare in Sub-Saharan Africa [].The main soil-environmental concerns in the region are nutrient depletion, loss of soil organic matter (SOM) and loss of soil functions (i.e., productivity) [1,2].In Ethiopia, total cultivated land has reached ~12 million hectares in mid, but Cited by:   Causesof Environmental Degradation.

Inappropriate land use: These phenomena can lead to soil degradation. Further, it may take place due to bad farming techniques.

Leaving fields bare or ploughing those up and down the sides of a hill can cause severe soil erosion when it rains heavily as the soil has nothing keeping it in place. Soil erodes naturally, but human activities can greatly speed the rate of soil erosion, leading to diverse ecological effects and to potentially severe impacts on agricultural production.

Fortunately, farmers, scientists, and policy makers have devised a number of ways. Changes in land use and land cover are important drivers of water, soil, and air pollution. Vegetation removal by land clearing and harvesting of trees leaves soils vulnerable to erosion. Mining and industrial emissions are also major contributors to global warming through emission of various greenhouse gases to the atmosphere.

The impacts of mass movement erosion on land productivity are significant but under-rated in the scientific literature. Impacts on cropping are here reported from 15 countries in south and southeast Asia, east Africa, the Caribbean and Melanesia, but accounts are generalized or anecdotal, and do not quantify crop loss or damage attributable to Cited by: Soil hydraulic properties, including soil hydraulic conductivity function and water retention characteristics, are affected by soil texture, bulk density, soil structure, and organic carbon content.

Many of these factors are strongly influenced by land use and management even though the. Desertification is a type of land degradation in drylands in which biological productivity is lost due to natural processes or induced by human activities whereby fertile areas become increasingly more arid.

It is the spread of arid areas caused by a variety of factors, such as through climate change (particularly the current global warming) and through the overexploitation of soil through. Agricultural land is a limited natural resource with increasing economic value.

This study analyses land rental relationships in Slovakia, including legal rental regulations, and identifies the impact of certain factors, such as the European Union Common Agricultural Policy (CAP) payments, and geographical and economic factors on land rental prices.

Agriculture contributes greatly to soil erosion and sediment deposition through intensive management or inefficient land cover. It is estimated that agricultural land degradation is leading to an irreversible decline in fertility on about 6 million ha of fertile land each year. The accumulation of sediments (i.e.

sedimentation) in runoff water affects water quality in various ways. Land degradation is causing approximately km 2 of formerly productive farmland to become abandoned annually, directly impacting two-thirds of the country's poor population.

In a recent assessment of soil degradation, agriculture (39%) and overgrazing by livestock (39%) were identified as the main drivers of land degradation. Rain-fed Cited by:. Worryingly, about square meters of land in Africa is being degraded due to soil erosion, salinization, pollution and deforestation.

This land degradation can damage agricultural.If the average yield of cereals is 2 t/ha, the total production of cereals on non-degraded land would be 1 tons, but since strong degradation causes a reduction of 75% of production, the total production on degraded land will be only tons (i.e.

1 - 75% 1 or 1 *).Thus, there is a need to describe it quantitatively. The main aim of the paper was to show needs and benefits of collecting quantitative information about soil surface roughness which is the most relevant parameter used as an index to predict water and wind erosion.

Surface roughness can reduce soil erosion and soil losses even by up to 31%.Author: Karolina Herodowicz, Jan Piekarczyk.