soil erosion, crop yield, crop production Abstract: Soil is one of the most important natural resources and a major factor in global food production. Soil erosion is widely considered the most serious form of soil degradation, posing a significant threat to world' food production capacity and global food security.
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Jun 24, 2010 Soil erosion is a global issue because of its severe adverse economic and environmental impacts. Economic impacts on productivity may be due to direct effects on crops/plants on-site and off-site, and environmental consequences are primarily off-site due either to pollution of natural waters or adverse effects on air quality due to dust and emissions of radiatively active gases.
Abstract. Sustained accelerated soil erosion alters key soil properties such as nutrient availability, water holding capacity, soil depth and texture, which in turn have detrimental effects on crop productivity and therefore reduce C input to soils. In this study, we applied a 1-D soil profile model that links soil organic carbon (SOC) turnover, soil erosion and biomass production.
Soil erosion, accelerated relative to natural rates by human activities, reduces crop productivity and causes damage resulting from sediment transport and deposition. Geostatistic models are only finding use in erosion-productivity studies and offer the important advantage of quantifying the spatial distribution of properties important to ...
Research to determine the effects of soil erosion on crop production is limited. There are two important reasons why. First, such experiments are costly and time-consuming. Years of data are needed to evaluate the effects of the generally slow process. Also, results can be difficult to in- terpret. Other variables may mask erosion-
This paper reviews the impact of soil and water conservation (SWC) measures on crop yield, soil properties, water resources and carbon sequestration. Land degradation due to soil erosion in Ethiopia is too severe which affects the livelihood of a community and ecosystem functions. The dry and highland part of the country was identified as seriously vulnerable to land degradation because of ...
of soil truncation on crop productivity using the following equation: YdrD TrBC1; (1) where Ydr is the relative crop productivity, Tr is the cumula-tive soil truncation since the start of cultivation (m), is the maximum crop productivity reduction and Bis the power law exponent linking the relative crop productivity to soil erosion.
In this study, it was observed that the erosion reduced the crop productivity of soil. Similar outcomes are also demonstrated by (Oguz et al., 2006; Kumar and Pani, 2013). Reduction in crop ...
the effects of soil erosion on productivity, particularly yield, which occurs at the erosion site. The loss of pro-duction due to erosion can be caused by deterioration in soil physical and chemical properties such as inﬁ ltration rate, water-holding capacity, loss of nutrients needed for crop production, and loss of soil …
R.L. Blevins, W.W. Frye, in Advances in Agronomy, 1993 2 Soil Erosion. Soil productivity factors that are usually diminished by soil erosion include direct loss of soil fertility, loss of soil organic matter, deterioration of soil structure, and decreased water-supplying capacity (capacity to provide water to growing plants). The primary seat of fertility of many soils is the topsoil.
SOIL EROSION AND CROP PRODUCTIVITY Editors R. F. Follett and B. A. Stewart Consulting Editor Iris Y. Ballew Managing Editor Domenic A. Fuccillo
Soil erosion removes valuable top soil which is the most productive part of the soil profile for agricultural purposes. The loss of this top soil results in lower yields and higher production costs. When top soil is gone, erosion can cause rills and gullies that make the cultivation of paddocks impossible.
Get free Research Paper on effects of soil degradation on crop production: an assessment of total nitrogen and available phosphorus in the rainforest of obiaruku, delta state. our project topics and materials are suitable for students in Nigeria with case studies in pdf, doc. The importance, how to, effect causes relationship, comparison, history, role, solutions are discussed
Soil erosion is a major environmental issue because it can lead to water pollution. But did you know that soil erosion also can seriously impair crop productivity? Most agriculture activities, especially on sloping landscapes, increase the potential for soil erosion. When soil erosion is severe, soil erodes faster than it can be renewed. For most areas of Iowa, the loss of 1 inch per acre of ...
The effect of soil erosion can be partitioned into costs to the actual site where erosion takes place and costs off site where sediment contributes to water quality problems. The on-site costs can include loss in production potential due to deterioration in soil physical and chemical properties such as infiltration rate, water holding capacity, loss of nutrients needed for crop production, and ...
Dec 02, 2008 Soil erosion and the effects of soil erosion on crop productivity have become emotional issues and have attracted the attention of agriculturists, environmentalists, and the public in general. In spite of heavy investments in research and development, the global rates of accelerated erosion are now presumbly higher than ever before.
Soil erosion is a gradual process that occurs when the impact of water or wind detaches and removes soil particles, causing the soil to deteriorate. Soil deterioration and low water quality due to erosion and surface runoff have become severe problems worldwide. The problem may become so severe that the land can no longer be cultivated and must be abandoned.
4 where Ydr is the relative crop productivity, Tr is the cumulative soil truncation since the start of cultivation (m), α is the maximum crop productivity reduction and B is the power law exponent linking the relative crop productivity to soil erosion. Based on the analysis of the Bakker et al. (2004) data, α was set to 0.42 (Fig. 1). Note however that only data from comparative-
The erosion had taken place 60 years prior to the study and the soil was in a very high fertility state, indicating that the effects of erosion are long-lasting. Neither low intensity use nor high fertility amendments restored the soil to its original production potential after being damaged by erosion.
The soil erosion rates, derived from the RUSLE2015 model, are used to estimate the loss in crop productivity (physical change in the production of plants) and to model their impact on the agricultural sector per country.
Perceived Impact of Soil Erosion on the Agricultural Potential and Performance in the Study AreaAccording to Table 5 above, the impact of soil erosion on the agricultural potential of study area was expressed in terms of three basic indicators: negative effect on animal health, shortage of grazingland and farmland and poor production of crops.
Soil compaction can occur at the soil surface in the form of soil crusting, or it can occur in the subsoil. Soil compaction is sometimes blamed for reduced crop productivity, but it is important to correctly diagnose the cause or causes of reduced crop production. Poor plant growth can be caused by a number of factors, including soil compaction.
Impacts of erosion on soil quality: Organic matter is a small fraction (2% to 4%) of soil mainly present on the soil surface. Organic matter contributes to productivity through its effect on the physical, chemical, and biological properties of the soil.