Modeling the USLE K-factor for calcareous soils in northwestern Iran

Vaezi, Ali Reza; Sadeghi, Seyed Hamidreza; Bahrami, H A; Mahdian, M H

doi:10.1016/j.geomorph.2007.08.017

Cited by 77 publications

(38 citation statements)

References 29 publications

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“…The b coefficient was determined using the size and the shape of soil aggregates and the c coefficient was obtained using the measurement of infiltration rate by double rings method (Vaezi et al, 2008).…”

Section: Laboratory Analysismentioning

confidence: 99%

Assessment of soil particle erodibility and sediment trapping using check dams in small semi-arid catchments

Vaezi

Abbasi

Keesstra

et al. 2017

CATENA

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A B S T R A C TCheck dams can be used as a source of information for studies on sediment characteristics and soil particle erodibility. In this study, sediment yield and grain size distribution (GSD) were measured in twenty small catchments draining into a rock check dam in NW Iran for different runoffs during 2010-2011. Significant correlations were found between sediment yield and slope steepness, vegetation cover and soil erodibility factor (K) of the catchments. The erodibility of soil particles was determined using the comparison of GSD between sediment and original soil. Clay was the most erodible soil particle which showed 2.05 times more percentage in sediment than the original soil. The erodibility of soil particles were strongly affected by the rainfall erosivity (EI 30 ). Check dams showed more effectiveness in trapping coarse particles (sand and gravel). The effectiveness of check dams in trapping coarse particles enhanced with increase in the remaining capacity of check dams.

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Section: Laboratory Analysismentioning

confidence: 99%

Assessment of soil particle erodibility and sediment trapping using check dams in small semi-arid catchments

Vaezi

Abbasi

Keesstra

et al. 2017

CATENA

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“…In this regard, previous studies have proven that LULC changes, particularly forest conversion to farmland and human settlement, can adversely affect the soil's physical and chemical characteristics and consequently soil quality [47][48][49]. One important factor in our study landscape which is expected to be influenced by LULC changes is soil erodibility.…”

Section: Discussionmentioning

confidence: 99%

Anthropogenic Decline of Ecosystem Services Threatens the Integrity of the Unique Hyrcanian (Caspian) Forests in Northern Iran

Zarandian

Baral

Yavari

et al. 2016

Forests

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Abstract:The unique Hyrcanian (Caspian) forests of northern Iran provide vital ecosystem services for local and global communities. We assess the status and trends of key ecosystem services in this region where native forest conversion has accelerated to make way for housing and farm development. This is a mountainous forested area that is valuable for both conservation and multiple human uses including recreation and farming. It contains globally significant natural habitats for in situ conservation of biological diversity. A rapid, qualitative, and participatory approach was used including interviews with local households and experts in combination with assessment of land use/cover remote sensing data to identify and map priority ecosystem services in the Geographic Information System (GIS). Based on the interests of the beneficiaries, eight priority services (food production, water supply, raw materials, soil conservation, water regulation, climate regulation, biodiversity, and recreation) were identified and mapped. The results indicate the current typical spatial distribution of the provided services based on structural characteristics of the study landscape and their changing trends through a comparison of past, present and future land use, and land cover. Although food production and recreation have greatly increased in recent decades, the other services, in particular timber production, biodiversity, and water purification and supply are being gradually lost. The results of this study and of others elsewhere should raise awareness of ecosystem service status and trends and the value of examining these since they provide much of the information to inform natural resources policy and decision making. The declines in supply of key ecosystem services both within and outside the protected area are creating conflicts within communities as well as impacting on the integrity of the area and careful planning and conservation is required to provide win-win opportunities.

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“…Lime content increases aggregate stability, resulting in a decreased K (Zhang et al 2008). Vaezi et al (2008) directly related the lime content to K. At present, long term monitoring of soil loss from natural runoff plots is the best method to estimate K for a given soil ).…”

Section: Soil Erodibility Factormentioning

confidence: 99%

“…However, some important discussions on K factor of RUSLE are also available elsewhere (Breshears et al 2003;Kim et al 2005;Zhang et al 2008;Vaezi et al 2008).…”

Section: Soil Erodibility Factormentioning

confidence: 99%

Soil erosion, sediment yield and sedimentation of reservoir: a review

Dutta

2016

Model. Earth Syst. Environ.

109

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Sedimentation is an important parameter to assess the life of a reservoir. Seventy-eight years ago, Cook was the first to identify mathematically, the three major factors affecting soil erosion in the catchment of a reservoir. As sedimentation is dependent on sediment yield and sediment yield depends on soil erosion, it is required to predict all three parameters to estimate the life of a reservoir. Since then many researchers carried their research dealing with soil erosion, sediment yield and sedimentation in various reservoirs for its practical significance. The aim of this article is to present a comprehensive state-of-the-art review of the important investigations on soil erosion, sediment yield and sedimentation in various reservoirs highlighting the governing mathematical background of these problems. 198 references are included in this review paper.

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Modeling the USLE K-factor for calcareous soils in northwestern Iran

Cited by 77 publications

References 29 publications

Assessment of soil particle erodibility and sediment trapping using check dams in small semi-arid catchments

Assessment of soil particle erodibility and sediment trapping using check dams in small semi-arid catchments

Anthropogenic Decline of Ecosystem Services Threatens the Integrity of the Unique Hyrcanian (Caspian) Forests in Northern Iran

Soil erosion, sediment yield and sedimentation of reservoir: a review

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