Journal ArticleDOI
Soil erosion and surface runoff on different vegetation covers and slope gradients: A field experiment in Southern Shaanxi Province, China
TLDR
In this paper, a field experiment in the Shangnan County using 33 small erosion plots of 7 m2 in size was carried out to determine and compare the soil loss and surface runoff from five vegetation covers and three levels of slope gradient (>10°−≤20°, >−20° −≤30°, and >−30°).Abstract:
The southern of the Shaanxi Province in central China is a region of great magnitude for water conservation. Long term anthropogenic interference in terms of deforestation and inappropriate land use has dramatically accelerated soil erosion in this region. A field experiment in the Shangnan County using 33 small erosion plots of 7 m2 in size was carried out to determine and compare the soil loss and surface runoff from five vegetation covers and three levels of slope gradient (> 10°–≤ 20°, > 20°–≤ 30°, and > 30°). The five vegetation covers embraced the most frequent rural land-use forms in the study area: farmlands including horticulture (tea plantation with peanut as an intercrop) and agriculture (maize in a winter-wheat–summer-maize rotation) activities, grasslands that have developed on abandoned farmlands, and forestlands including low and high forests (Chinese cork-oak coppices and pine plantations, respectively). The change in the runoff among the vegetation covers and slope gradients was high but not as significantly pronounced as for the change in the soil loss. Results showed that the slope gradient has an impact on the runoff and soil loss: the greater the slope gradient the higher the potential for runoff and soil loss. In addition, results exhibited that the rate of erosion is substantially affected by changes in vegetation cover. Farmlands generated the highest runoff and soil loss, whereas the tea plantations at slopes > 30° were most susceptible to erosion. Grasslands had less runoff and soil loss than farmlands. Forestlands provided evidence for their suitability for soil and water conservation in the study area, as negligible soil-losses in comparison to the other vegetation covers were generated.read more
Citations
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Effects of vegetation on runoff and soil erosion on reclaimed land in an opencast coal-mine dump in a loess area
TL;DR: Wang et al. as discussed by the authors investigated the effects of vegetation on runoff and erosion, a field experiment involving eight erosion plots was conducted on a dump at the Antaibao opencast coal mine in, Shanxi Province.
Journal ArticleDOI
Loss of Plant Species Diversity Reduces Soil Erosion Resistance
TL;DR: In this paper, the effect of plant species diversity on soil loss through erosion on a simulated dike was investigated, and the authors concluded that the protection and restoration of diverse plant communities on embankments and other vegetated slopes are essential to minimize soil erosion, and can contribute to greater safety in the most densely populated areas of the world.
Journal ArticleDOI
Ecosystem service trade-offs and their influencing factors: A case study in the Loess Plateau of China
TL;DR: This research quantified the ESs, ES trade-offs, and the environmental factors in 151 sample plots in the Ansai watershed, and used a redundancy analysis (RDA) to clarify the effects of environmental factors on these ESs and their trade-off.
Journal ArticleDOI
Effects of precipitation and restoration vegetation on soil erosion in a semi-arid environment in the Loess Plateau, China
TL;DR: Wang et al. as mentioned in this paper employed structural equation modelling (SEM) to systematically analyze the relative effects of precipitation and vegetation restoration on soil erosion in the Loess Plateau, China.
Journal ArticleDOI
Assessment of soil erosion change and its relationships with land use/cover change in China from the end of the 1980s to 2010
Xiao Wang,Xiaoli Zhao,Zengxiang Zhang,Ling Yi,Lijun Zuo,Qingke Wen,Fang Liu,Jinyong Xu,Shunguang Hu,Bin Liu +9 more
TL;DR: Li et al. as discussed by the authors built up a National Soil Erosion Database of China (NSED-C) at 1:100,000 scale that contains Chinese soil erosion data for five periods (the end of the 1980s, 1995, 2000, 2005, and 2010).
References
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Journal ArticleDOI
Modeling Response of Soil Erosion and Runoff to Changes in Precipitation and Cover
Mark A. Nearing,Victor Jetten,Claire Baffaut,Olivier Cerdan,A. Couturier,Mariano Hernandez,Y. Le Bissonnais,Mary H. Nichols,João Osvaldo Rodrigues Nunes,Chris S. Renschler,Veronique Souchere,K. Van Oost +11 more
TL;DR: In this article, the response of seven soil erosion models to a few basic precipitation and vegetation related parameters using common data from one humid and one semi-arid watershed was investigated, and the results suggest that there is a significant potential for climate change to increase global soil erosion rates unless offsetting conservation measures are taken.
Journal ArticleDOI
Erosion processes in steep terrain—Truths, myths, and uncertainties related to forest management in Southeast Asia
Roy C. Sidle,Alan D. Ziegler,Junjiro N. Negishi,Abdul Rahim Nik,Ruyan Siew,Francis Turkelboom +5 more
TL;DR: In this paper, the effects of forest management on soil erosion in Southeast Asia, clear distinctions must be made between surface erosion and landslide processes, which are episodic processes triggered by individual rainfall events or artificial inputs of water; slower, deep-seated landslides initiate or activate after a longerterm accumulation of water.
Journal ArticleDOI
Ecology of Soil Erosion in Ecosystems
David Pimentel,Nadia Kounang +1 more
TL;DR: In the agricultural domain, about 75 billion tons of soil are lost from the world's terrestrial ecosystems each year as discussed by the authors, and most agricultural land in the world is losing soil at rates ranging from 13-40 times faster than the rate of renewal and sustainability.
Posted Content
Conservation Tillage: The Role of Farm and Operator Characteristics and the Perception of Soil Erosion
TL;DR: For more than half a century, the use of grassed waterways, terraces, contour plowing, strip cropping, and the raising of closely seeded crops have been used in Wisconsin to control soil erosion as discussed by the authors.
Journal ArticleDOI
The effect of land uses and rainfall regimes on runoff and soil erosion in the semi-arid loess hilly area, China
TL;DR: Wang et al. as mentioned in this paper analyzed runoff and soil loss in relation to land use and rainfall regimes in a loess hilly area of China, based on 14 years of field measurements and K-means clustering, 131 rainfall events were classified into three rainfall regimes.