Water infiltration and clod size distribution as influenced by ploughshare type, soil water content and ploughing depth

Hemmat, Abbas; Ahmadi, Iman; Masoumi, A A

doi:10.1016/j.biosystemseng.2007.02.010

Cited by 22 publications

(8 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Depending on the species, the older trees produce more litters to contribute to the organic matter building up. Through decomposition process, the consequences of litter quality and quantity influences organic matter building up in the soil [8] . The soil with higher organic matter content will have a higher infiltration rate [9] .…”

Section: Discussionmentioning

confidence: 99%

Effect of Different Ages of a Rehabilitated Forest on Selected Physico-chemical Properties

Murugayah¹,

Gandaseca²,

Ahmed³

et al. 2009

American J. of Applied Sciences

View full text Add to dashboard Cite

Problem statement: This research was important because of still lack of information about rehabilitated tropical forest age effect on infiltration rate. The objectives of this study were to determine the influence of age of forest on soil water infiltration rate and to evaluate the influence of forest age on the relationship between water infiltration rate, soil organic matter and soil texture. Approach: This study was conducted under a rehabilitated forest at Bukit Nyabau (University Putra Malaysia Bintulu Campus, UPMKB) Forest. Soil organic matter, soil texture and infiltration rate were investigated in randomly selected blocks representing different age classes, namely two, four, six, eight and ten years. Results: The results indicated that 2, 4, 6 and 8 year old forest were not significantly different in organic matter content with the mean of 8.10+2.75, 9.32+3.50, 9.55+1.71 and 8.10+2.75% respectively. Besides, 10 year forest showed no significant differences compared with two and eight year forests. Soil texture for all the forests was sandy loam, except for the 4 year old forest which was a sandy clay loam. The lowest value of sand content was observed in four year forest. However, the clay content in this forest was statistically the highest compared with 2, 4, 8 and 10 year old forest. The infiltration rate of 6 years old forest was significantly greater in soil water infiltration rate with the mean of 5.0±0.02 mm m −1 , compared with 2, 4, 8 and 10 years old forest with the means of 2.6±0.02, 4.2±0.03, 3.6±0.03 and 3.5±0.03 mm m −1 respectively. Eight and 10 year old forests showed no significant differences in terms of soil water infiltration rate and the lowest value of water infiltration rate was observed in the two year old forest. Conclusion: From the results, it can be concluded that the soil water infiltration rate in the forest is mainly influenced by soil texture and organic matter content, but not by forest age. However, the effect of soil texture was significant compared to organic matter which facilitates water movement into soil. Soil texture with higher percentage of sand and lower percentage of clay had higher infiltration rate.

show abstract

Section: Discussionmentioning

confidence: 99%

Effect of Different Ages of a Rehabilitated Forest on Selected Physico-chemical Properties

Murugayah¹,

Gandaseca²,

Ahmed³

et al. 2009

American J. of Applied Sciences

View full text Add to dashboard Cite

show abstract

“…The main effects of a compacted layer on soil erosion include the following: a) a rise in the water table or development of a transient water table (Lin et al, 2008;Bertolino et al, 2010), b) an abrupt decrease in the vertical transport capacity of water between the layers (i.e., hydraulic discontinuity) (Hemmat et al, 2007;Lin et al, 2008;Bertolino et al, 2010), and c) saturation-excess runoff and preferential flow in the soil (Lin et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

“…This system, therefore, frequently leads to effects such as increased compaction, reduced macroporosity and hydraulic conductivity, and a decrease in infiltration (Morgan, 2005;Hemmat et al, 2007;Blanco & Lal, 2010). A compacted layer has physical characteristics (e.g., resistance and permeability) that differ from the layers above and below.…”

Section: Introductionmentioning

confidence: 99%

Rill erosion on an oxisol influenced by a thin compacted layer

Thomaz¹

2013

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

SUMMARYThe presence of compacted layers in soils can induce subprocesses (e.g., discontinuity of water flow) and induces soil erosion and rill development. This study assesses how rill erosion in Oxisols is affected by a plow pan. The study shows that changes in hydraulic properties occur when the topsoil is eroded because the compacted layer lies close below the surface. The hydraulic properties that induce sediment transport and rill formation (i.e., hydraulic thresholds at which these processes occur) are not the same. Because of the resistance of the compacted layer, the hydraulic conditions leading to rill incision on the soil surface differed from the conditions inducing rill deepening. The Reynolds number was the best hydraulic predictor for both processes. The formed rills were shallow and could easily be removed by tillage between crops. However, during rill development, large amounts of soil and contaminants could also be transferred.

show abstract

“…Multiple factors, including meteorological factors (such as rainfall, atmospheric evaporation) and soil factors (such as soil texture, land-use patterns, and soil water holding capacity) produce a combined effect on the distribution and dynamic of soil water [7]. Of which, rainfall plays a key role.…”

Section: Soil Water Resources In the Loess Plateaumentioning

confidence: 99%

Soil water resources use limit in the loess plateau of China

Ning¹,

Guo²,

Guo³

et al. 2013

View full text Add to dashboard Cite

Soil water is a key factor limiting plant growth in water-limited regions. Without limit of soil water used by plants, soil degradation in the form of soil desiccation is easy to take place in the perennial forestland and grassland with too higher density or productivity. Soil water resources use limit (SWRUL) is the lowest control limit of soil water resources which is used by plants in those regions. It can be defined as soil water storage within the maximum infiltration depth in which all of soil layers belong to dried soil layers. In this paper, after detailed discussion of characteristics of water resources and the relationship between soil water and plant growth in the Loess Plateau, the definition, quantitative method, and practical applications of SWRUL are introduced. Henceforth, we should strengthen the study of SWRUL and have a better understanding of soil water resources. All those are of great importance for designing effective restoration project and sustainable management of soil water resources in waterlimited regions in the future.

show abstract

Water infiltration and clod size distribution as influenced by ploughshare type, soil water content and ploughing depth

Cited by 22 publications

References 23 publications

Effect of Different Ages of a Rehabilitated Forest on Selected Physico-chemical Properties

Effect of Different Ages of a Rehabilitated Forest on Selected Physico-chemical Properties

Rill erosion on an oxisol influenced by a thin compacted layer

Soil water resources use limit in the loess plateau of China

Contact Info

Product

Resources

About