Using 137Cs technique to investigate the spatial distribution of erosion and deposition regimes for a small catchment in the black soil region, Northeast China

An, Juan; Zheng, Fenli; Wang, Bin

doi:10.1016/j.catena.2014.08.009

Cited by 46 publications

(28 citation statements)

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“…Previous studies have shown that the pattern of soil redistribution is characterized by erosion from the upper slope positions and deposition at the lower slope positions (Ge et al, 2007;Zhang et al, 2004). In the study catchment, slight soil erosion occurred at the upper position with an erosion rate of 0.20 to 11.97 Mg ha −1 yr −1 , severe soil erosion occurred at the midslope with an erosion rate of 12.54 to 31.17 Mg ha −1 yr −1 , and a great amount of soil material was deposited at the lower slope with a deposition rate up to 6.00 Mg ha −1 yr −1 (An et al, 2014). Correspondingly, the SQI values of the lower and upper slopes were higher than those of the midslope positions.…”

Section: The Spatial Distribution Of Soil Qualitymentioning

confidence: 95%

“…The corn yield changes at the slope scale were obvious and followed the order of midslope (8257 kg ha −1 ) < upper slope (8981 kg ha −1 ) < footslope (9321 kg ha −1 ). An et al (2014) proposed that slight soil erosion occurred at the upper position, severe soil erosion occurred at the midslope, and a great amount of soil material was deposited at the footslope in the study catchment. It could clearly be seen that the changes in corn yields at the slope scale were coincident with soil erosion rates.…”

Section: The Spatial Distribution Of Corn Yieldmentioning

confidence: 99%

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Investigating Spatial Distribution of Soil Quality Index and Its Impacts on Corn Yield in a Cultivated Catchment of the Chinese Mollisol Region

Yang

Zheng

Han

et al. 2016

Soil Science Society of America Journal

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The Mollisol region of Northeast China is an important crop production base of China. The soil quality of this region has greatly decreased in recent decades due to unreasonable land management, which in turn has reduced crop yields. The objectives of this study were to investigate the spatial distribution of a soil quality index (SQI) and the relationship between crop yield and soil quality in a catchment of the Chinese Mollisol region. A total of 168 soil samples were collected based on a 200-by 200-m grid and 4 yr of corn (Zea mays L.) yields and 15 soil quality indicators, including physical, chemical, and biological properties, were analyzed. Principal component analysis indicated that the critical indicators for characterizing soil quality were soil organic matter, total N, sucrase activity, NH 4 +-N, microbial biomass C, and microbial biomass N. The SQI varied from 0.147 to 0.804 with a mean value of 0.388. The spatial distribution of soil quality and corn yield showed that high values of both soil quality and corn yield were located in the north, and low values were in the south of the catchment. An empirical equation between corn yield and SQI was fitted, and cross-validation results showed that the empirical equations could be used to assess soil quality effects on corn yield with acceptable accuracy in the research area. Hence, to realize agricultural sustainability, effective soil conservation measures, such as no-till, cover crops, and retaining crop residues should be implemented in the study area instead of current cropland management measures.

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Section: The Spatial Distribution Of Soil Qualitymentioning

confidence: 95%

Section: The Spatial Distribution Of Corn Yieldmentioning

confidence: 99%

Investigating Spatial Distribution of Soil Quality Index and Its Impacts on Corn Yield in a Cultivated Catchment of the Chinese Mollisol Region

Yang

Zheng

Han

et al. 2016

Soil Science Society of America Journal

Self Cite

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“…Caesium-137 (Cs-137) is an anthropogenic radionuclide (halflife ¼ 30.2 years) most widely used in soil science and has been employed under different agro-environmental conditions around the world (Walling et al, 1986(Walling et al, , 1995Zapata, 2002;An et al, 2014). It has been used in soil erosion investigations over a range of different scales, extending from experimental plots to one of the largest scale investigations in Quebec, Canada (217 km 2 ) Mabit et al, 2008).…”

Section: Studied Radionuclidesmentioning

confidence: 99%

“…They are rapidly and strongly fixed by the surface soil or small sediment particles. For these reasons, they have successfully been used as tracers of soil redistribution (Wallbrink and Murray, 1993;Walling and He, 1999;Matisoff et al, 2002;Zapata, 2002;Walling et al, 2003;Zhang et al, 2003;Mabit et al, 2008;An et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Multivariate geostatistical analysis of fallout radionuclides activity measured by in-situ gamma-ray spectrometry

Hosseinalizadeh

Ahmadi

Feiznia

et al. 2017

Quaternary International

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“…The literature review shows that Cs-137 may be used to determine the rate of deposition of overbank [17,18], lacustrine and delta [19,20] sediments. Cs-137 isotope is also used to assess soil erosion [21][22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

The Use Of Pb-210 Isotope As An Indicator Of Pollutants’ Migration In The Environment

Dołhańczuk-Śródka

2015

Ecological Chemistry and Engineering S

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Radioactive isotopes, both natural and artificial, present in the environment, may be convenient indicators that can be used to study many physical and chemical processes as well as the transport of pollutants in the ecosystem. The studies have shown that in identification of particulate matter emission sources a radioactive lead isotope (Pb-210) can be used. The Pb-210 increased activity concentration in the top soil layers suggests its current atmospheric deposition. This conclusion is confirmed by the results of the Principal Components Analysis, conducted using the measured radionuclide content in 0-30 cm deep soil layer samples. Keywords: Pb-210, pollutant emission indicator IntroductionRadioactivity is not only a source of human exposure, but it also has many practical applications. Using the properties of radioactive isotopes, it is possible, for example, to generate electricity, test materials, diagnose and treat people. Radioisotopes are also used in environmental studies [1].Radioactive isotopes are used, inter alia, to study the mechanisms and dynamics of the processes in soil and plants , to determine the age of rocks, minerals, sediments and soil (eg C-14, U-238, U-235 and Th-232), to study the circulation of elements and their radioactive isotopes in the food chain and in the monitoring studies (natural isotopes, eg K-40, U-238, or artificial isotopes, [1].The examples of monitoring studies include the assessment of the activity of caesium isotopes in surface soil in spatial terms [2][3][4][5].Radioactive isotopes are also used in laboratory testing of processes under controlled conditions, which makes it possible to describe them and to assess the behavior in the environment. The use of these methods is presented, inter alia, in sample Australian studies 1 Independent Chair of Biotechnology and Molecular Biology, Opole University, ul. kard. B. Kominka 6, 45-035 Opole, Poland, phone +48 77 401 60 46, email: agna@uni.opole.pl Unauthenticated Download Date | 5/8/18 5:37 AM Agnieszka Dołhańczuk-Śródka 380 [6]. The use of Cs-134, Sr-85 and Zn-65 made it possible to determine the penetration of radioactive fallout into tropical soil. were used to identify the mechanism and dynamics of trace metal bonding in port sediments.Radioactive isotopes present in the environment, such as Th-234, Be-7, Pb-210, Cs-137, Si-32 and C-14, were used to study present-day sedimentation in seas and oceans. Th-234 and Be-7 isotopes are used, inter alia, in bioturbation and sedimentation studies in the high material supply conditions [7,8].Pb-210 isotope is most commonly used to determine the rate of marine [9] and lacustrine [10-14] sediment increase, but also to identify the rate of snow cover increase. The lead method was also used in Alpine glacier studies [15,16].Cs-137 is used, as a time marker, very often together with Pb-210, to determine the age of lacustrine sediments. The literature review shows that Cs-137 may be used to determine the rate of deposition of overbank [17,18], lacustrine and delta [19,...

show abstract

Using 137Cs technique to investigate the spatial distribution of erosion and deposition regimes for a small catchment in the black soil region, Northeast China

Cited by 46 publications

References 34 publications

Investigating Spatial Distribution of Soil Quality Index and Its Impacts on Corn Yield in a Cultivated Catchment of the Chinese Mollisol Region

Investigating Spatial Distribution of Soil Quality Index and Its Impacts on Corn Yield in a Cultivated Catchment of the Chinese Mollisol Region

Multivariate geostatistical analysis of fallout radionuclides activity measured by in-situ gamma-ray spectrometry

The Use Of Pb-210 Isotope As An Indicator Of Pollutants’ Migration In The Environment

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