Temporal dynamics of soil erosion and rainfall erosivity as geoindicators of land degradation in Northwestern Argentina

Busnelli, José; Neder, Liliana del Valle; Sayago, José Manuel

doi:10.1016/j.quaint.2006.05.019

Cited by 25 publications

(13 citation statements)

References 2 publications

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“…3). The result indicates that the annual runoff and soil loss are not necessarily consistent with the annual conditions of total rainfall, which agrees with some other studies (Cantón et al, 2001;Busnelli et al, 2006). The reasons for this are complex, but mainly due to the high fluctuations and variabilities of temporal rainfall (Hogarth et al, 2004;Nearing et al, 2005;Busnelli et al, 2006).…”

Section: Response Of Water Erosion To Different Drought-level Yearssupporting

confidence: 83%

“…As discussed before, rainfall depth is not the most important factor influencing water erosion. Rainfall type, intensity and occurrence all may play significant roles in generating erosion (Dunjó et al, 2004;Apaydin et al, 2006;Busnelli et al, 2006). For example, our study indicates that although the total rainfall depth and number of events were far less in DY than those in WY and NY (Fig.…”

Section: Effect Of Temporal Variation Of Rainfall On Water Erosionmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

“…These fluctuations increase the difficulties of accurate erosion measurement and prediction (Hogarth et al, 2004;Busnelli et al, 2006). Moreover, such intra-and inter-annual changes in water erosion are complex and caused by many synergistic reasons (Busnelli et al, 2006;Chen et al, 2007b). Among these factors however, the spatiotemporal variations of rainfall play a key role (Apaydin et al, 2006;Wei et al, 2007Wei et al, , 2009Baigorria et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Water erosion response to rainfall and land use in different drought-level years in a loess hilly area of China

Wei

Chen

et al. 2010

CATENA

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Section: Response Of Water Erosion To Different Drought-level Yearssupporting

confidence: 83%

Section: Effect Of Temporal Variation Of Rainfall On Water Erosionmentioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Water erosion response to rainfall and land use in different drought-level years in a loess hilly area of China

Wei

Chen

et al. 2010

CATENA

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“…For precipitation, various changes have been observed in the amount, frequency and intensity (Back et al, 2011;Petkovšek and Mikoš, 2004). These changes influence erosivity of rainfall, and thus water erosion (Bazzano et al, 2010;Bonilla and Vidal, 2011;Busnelli et al, 2006). In the context of climate change, the effect of altered rainfall characteristics on soil erosion is one of the main concerns of soil conservation studies (Angulo-Martinez and Begueria, 2009).…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal variation and trends in rainfall erosivity in China's dryland region during 1961–2012

Yang

2015

CATENA

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This study evaluated rainfall erosivity and its changes in China's dryland region during 1961-2012, using a daily rainfall erosivity model, ArcGIS based spatial interpolation tools, and the Mann-Kendall and Sen's methods. It was found that mean rainfall erosivity was 2-4098 MJ mm ha −1 h −1 a −1 in the region, with the regional average of 794 MJ mm ha −1 h −1 a −1 , showing a significant increase trend accordingly with an increase in rainfall from northwest to southeast. Rainfall erosivity varied annually with the CV of 32.4-491.3%, and varied seasonally with about three-quarter distributed in summer. During 1961-2012, a statistically significant increase/decrease trend in rainfall erosivity was detected only for 24/10 stations or about 4.6/0.4% of the region, and a nonsignificant increase/decrease trend was observed for 32/45 stations or 16.5/10.0% of the region at the 50 to 90% confidence level. No statistically confidential trend was found for other 126 stations or 68.5% of the region. At regional level, mean annual erosivity of the arid zone indicated an upward trend, while the sub-humid zone a downward, but the semi-arid zone generally had no evidential trend. Comparing the 26 year's averages during 1987-2012 and 1961-1986, mean erosivity of the arid zone increased by 17.4%, the sub-humid zone decreased by 6.1%, and the semi-arid zone reduced slightly by 0.45%. The results suggest that change in the rainfall characteristics during the past half century had no significant influence on water erosion in the majority of the region, but it could probably induce an increase of water erosion risk in parts of the drier west and a slight decrease in parts of the wetter east including the Loess Plateau.

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Climate change in Argentina: trends, projections, impacts and adaptation

Barros

Boninsegna²,

Camilloni

et al. 2014

WIREs Climate Change

268

156

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In most of Argentina, the warming since 1901 was a little lower than the global average, although with strong trends in temperature extremes and in heat waves during the most recent decades. There was a remarkable increase in precipitation over most of subtropical Argentina, especially since 1960. This has favored agriculture yields and the extension of crop lands into semiarid regions, but this increase also came with more frequent heavy rainfalls and consequent flooding of rural and urban areas. Since the early 1970s, the main rivers of the Plata Basin have increased their mean flows, but this was attributable not only to increased precipitation, but also to land use changes. In contrast, over the Andes Mountains, reduced rainfall and increased temperature has led to glaciers receding and reduced river flows. Climate projections for the first half of this century maintain observed trends and raise additional concerns that in most cases can be dealt with timely adaptation policies. However, by the end of this century, under an extreme emissions scenario, the projected warming reaches 3.5°C in the north of the country with respect to present‐day conditions. There is insufficient knowledge to assume that this warming would not create severe damages to the people and the economy of Argentina. Because of the damages and casualties that heat waves and extreme precipitation events are already producing, the first and most urgent adaptation required is to reinforce early warning systems and contingency planning to cope with climatic extremes and their consequences on health. WIREs Clim Change 2015, 6:151–169. doi: 10.1002/wcc.316 This article is categorized under: Trans‐Disciplinary Perspectives > National Reviews

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Temporal dynamics of soil erosion and rainfall erosivity as geoindicators of land degradation in Northwestern Argentina

Cited by 25 publications

References 2 publications

Water erosion response to rainfall and land use in different drought-level years in a loess hilly area of China

Water erosion response to rainfall and land use in different drought-level years in a loess hilly area of China

Spatiotemporal variation and trends in rainfall erosivity in China's dryland region during 1961–2012

Climate change in Argentina: trends, projections, impacts and adaptation

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