Assessing Changes in Soil Erosion Rates: A Markov Chain Analysis

AbstractMarkov chain analysis (one-step and long-run) is applied to the National Resources Inventory (NRI) database to evaluate changes in wind-based soil erosion rates over time. The research compares changes in soil erosion rates between NRI sample sites with and without applied conservation practices for a random sample of Great Plains counties. No significant differences between sites are found for half of the counties evaluated. The effectiveness and efficiency of conservation policies are thus questioned in light of these research results.

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Geospatial technology for prioritization of Koyna River basin of India based on soil erosion rates using different approaches

Environmental Science and Pollution Research ◽

10.1007/s11356-021-13155-7 ◽

2021 ◽

Author(s):

Tarate Suryakant Bajirao ◽

Pravendra Kumar

Keyword(s):

Soil Erosion ◽

River Basin ◽

Geospatial Technology ◽

Erosion Rates ◽

Soil Erosion Rates

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The application of137Cs and210Pbexmethods in soil erosion research of Titel loess plateau, Vojvodina, Northern Serbia

Open Geosciences ◽

10.1515/geo-2020-0002 ◽

2020 ◽

Vol 12 (1) ◽

pp. 11-24

Author(s):

Kristina S. Kalkan ◽

Sofija Forkapić ◽

Slobodan B. Marković ◽

Kristina Bikit ◽

Milivoj B. Gavrilov ◽

...

Keyword(s):

Soil Erosion ◽

Loess Plateau ◽

Alternative Methods ◽

Delivery Ratio ◽

Undisturbed Soil ◽

Migration Model ◽

Erosion Rates ◽

Soil Erosion Rates ◽

Profile Distribution ◽

And Migration

AbstractSoil erosion is one of the largest global problems of environmental protection and sustainable development, causing serious land degradation and environmental deterioration. The need for fast and accurate soil rate assessment of erosion and deposition favors the application of alternative methods based on the radionuclide measurement technique contrary to long-term conventional methods. In this paper, we used gamma spectrometry measurements of 137Cs and unsupported 210Pbex in order to quantify the erosion on the Titel Loess Plateau near the Tisa (Tisza) River in the Vojvodina province of Serbia. Along the slope of the study area and in the immediate vicinity eight representative soil depth profiles were taken and the radioactivity content in 1 cm thick soil layers was analyzed. Soil erosion rates were estimated according to the profile distribution model and the diffusion and migration model for undisturbed soil. The net soil erosion rates, estimated by 137Cs method range from −2.3 t ha−1 yr−1 to −2.7 t ha−1 yr−1, related to the used conversion model which is comparable to published results of similar studies of soil erosion in the region. Vertical distribution of natural radionuclides in soil profiles was also discussed and compared with the profile distribution of unsupported 210Pbex measurements. The use of diffusion and migration model to convert the results of 210Pbex activities to soil redistribution rates indicates a slightly higher net erosion of −3.7 t ha−1 yr−1 with 98% of the sediment delivery ratio.

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