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[Objective] The aim of this study is to elucidate the accuracy and applicability of different algorithms for detecting slope erosion, which can provide a reference for the selection and development of detection methods for soil erosion processes. [Methods] Five plots established on a natural slope in the loess hilly and gully region to conduct runoff scouring experiments. Using TLS data, we calculated erosion and sediment yield by using various methods such as Digital Elevation Model (DEM) of difference (DoD), Cloud to Cloud (C2C), Cloud to Mesh/Model (C2M), and Multiscale Model to Model Cloud Comparison (M3C2), and compared their results. [Results] The results of the uncertainty analysis showed that M3C2 produced the smallest average uncertainty, followed by C2C and C2M, while DoD yielded the largest uncertainty. The sediment yield calculated by the detection algorithms demonstrated that under high flow rates (85, 70 and 55 L/min), there was a significant linear relationship between consecutive sediment yield and cumulative sediment yield derived by the four algorithms and the corresponding measured sediment yield (R²＞0.62, p＜0.05), and M3C2 performed best; under low flow rates (40 and 25 L/min), no significant linear relationships were found between consecutive sediment yield and measured sediment yield, but significant linear relationships were found between cumulative sediment yield and measured sediment yield (R²＞0.91, p＜0.05), and DoD performed best. The spatial distribution of erosion and deposition indicated that C2C, M3C2, and DoD could reflect two stages of erosion evolution on hillslopes and gully slopes (rapid development stage and stable stage), with M3C2 being able to detect subtle topographic changes. However, M3C2 results were subject to ‘voids’ in the blind area of TLS scanning due to not finding corresponding points in the normal direction. [Conclusion] The M3C2 algorithm is more suitable for detecting complex terrain, but it will still fail in the blind spot of scanning, and the algorithm should be improved in the future to help cope with more complex and drastic terrain changes. [ABSTRACT FROM AUTHOR]

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Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Soil & Water Conservation (1009-2242) is the property of Institute of Soil & Water Conservation and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Petroleum Geology & Experiment is the property of Petroleum Geology & Experiment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

BACKGROUND: As an important component of plant nitrogenase, nitrate reductase and human enzyme prosthetic groups, Mo plays an important role in maintaining plant growth and development, and human health. A previous study showed that total molybdenum in soil was mainly restricted by soil parent material and soil type, and effective molybdenum was mainly affected by total molybdenum content, soil texture, pH value and organic matter ( Liu Peng, 2001; Wei Minghui, 2020; Xia Yan, 2021). The Huaibei Plain in Anhui Province is located in the molybdenum deficient soil area of the North China Plain. At present, there is a lack of systematic research on the molybdenum content and its driving factors in the soil in this area. Therefore, it is of great practical significance to study the distribution of soil molybdenum content and its influencing factors in agricultural land for scientific fertilization and improvement of soil molybdenum availability. OBJECTIVES: To study the content and spatial distribution characteristics of total molybdenum and available molybdenum in different types of soil, and deeply analyze the main factors restricting the distribution characteristics of total molybdenum and available molybdenum in surface soil and put forward scientific suggestions for scientific fertilization of soil and improvement of soil molybdenum availability. METHODS: When the crops were mature, surface soil samples with a depth of 0-20cm were collected, and the sampling density was one sample / km² . The contents of total molybdenum, available molybdenum, iron oxide, aluminum oxide, silicon oxide, phosphorus, manganese, organic matter and pH value in soil were determined by inductively coupled plasma - mass spectrometry ( ICP - MS ), inductively coupled plasma - optical emission spectrometry ( ICP - OES ) and other methods. The content and spatial distribution characteristics of total molybdenum and available molybdenum in soil were studied by using statistics, Pearson correlation analysis and other methods, and the main factors restricting the distribution characteristics of total molybdenum and available molybdenum in soil were analyzed and revealed. RESULTS: The contents of total molybdenum and available molybdenum in lime concretion black soil were mainly deficient, and the proportion of total molybdenum and available molybdenum deficiency in soil was 93. 3% and 87. 3%, respectively. The correlation coefficients of total molybdenum content with pH value, manganese, iron oxide, phosphorus, and silicon and aluminum ratio (i. e. the ratio of silicon oxide and aluminum oxide content in the soil) in lime concretion black soil were 0. 268, 0. 213, 0. 189, 0. 153 and - 0. 199 respectively, and the correlation coefficients of available molybdenum in lime concretion black soil with pH value and organic matter were -0. 310 and 0. 117, respectively. The proportion of slightly deficient, moderate, and slightly enriched total molybdenum content in fluvo - aquic soil was 31. 2%, 28. 4% and 21. 1% respectively, and the correlation coefficients of total molybdenum content with manganese, phosphorus and organic matter in fluvo-aquic soil were 0. 611, 0. 330 and 0. 205 respectively. The proportion of soil area lacking available molybdenum content in fluvoaquic soil was 86. 2%, and the correlation coefficient between total molybdenum and available molybdenum content in fluvo-aquic soil was 0. 166. CONCLUSIONS: The low content of total molybdenum in lime concretion black soil was mainly affected by soil pH, manganese, iron oxide, phosphorus, and silicon and aluminum ratio. The pH value and organic matter are important factors that restrict the low content of available molybdenum in lime concretion black soil. The content of total molybdenum in fluvo-aquic soil was significantly related to manganese, phosphorus and organic matter. The low content of total molybdenum was an important factor for the deficiency of available molybdenum in fluvo-aquic soil. It is suggested that scientific fertilization should be carried out by comprehensively considering the content of available molybdenum in soil and its main limiting factors, in which organic fertilizer should be applied to the lime concretion black, and molybdenum fertilizer should be applied reasonably to the fluvo-aquic soil. [ABSTRACT FROM AUTHOR]

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Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Science & Technology of Cereals, Oils & Foods is the property of Science & Technology of Cereals, Oils & Foods Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Food Research & Development is the property of Food Research & Development Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)