Soil Aggregate Stability and Erodibility in Different Vegetation Types of Exposed Feldspathic Sandstone Region

doi:10.13961/j.cnki.stbctb.2021.03.002

Home > Archive>Volume 41, Issue 3, 2021 >8-14. DOI:10.13961/j.cnki.stbctb.2021.03.002

Soil Aggregate Stability and Erodibility in Different Vegetation Types of Exposed Feldspathic Sandstone Region
DOI:
                        10.13961/j.cnki.stbctb.2021.03.002
                    
Author:
                        Yang ZhenqiYang Zhenqi
Yinshanbeilu National Field Research Station of Desert Steppe Eco-hydrological System, China Institute of Water Resources and Hydropower Research, Beijing 100038, China;Institute of Water Resources for Pastoral Area of the Ministry of Water Resources of China, Hohhot, Inner Mongolia 010020, China
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Guo JianyingGuo Jianying
Yinshanbeilu National Field Research Station of Desert Steppe Eco-hydrological System, China Institute of Water Resources and Hydropower Research, Beijing 100038, China;Institute of Water Resources for Pastoral Area of the Ministry of Water Resources of China, Hohhot, Inner Mongolia 010020, China
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Qin FucangQin Fucang
Desert Science and Engineering College, Inner Mongolia Agricultural University, Hohhot, Inner Mongolia 010018, China
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Liu TiejunLiu Tiejun
Yinshanbeilu National Field Research Station of Desert Steppe Eco-hydrological System, China Institute of Water Resources and Hydropower Research, Beijing 100038, China;Institute of Water Resources for Pastoral Area of the Ministry of Water Resources of China, Hohhot, Inner Mongolia 010020, China
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Liu YanpingLiu Yanping
Yinshanbeilu National Field Research Station of Desert Steppe Eco-hydrological System, China Institute of Water Resources and Hydropower Research, Beijing 100038, China;Institute of Water Resources for Pastoral Area of the Ministry of Water Resources of China, Hohhot, Inner Mongolia 010020, China
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Xing EndeXing Ende
Yinshanbeilu National Field Research Station of Desert Steppe Eco-hydrological System, China Institute of Water Resources and Hydropower Research, Beijing 100038, China;Institute of Water Resources for Pastoral Area of the Ministry of Water Resources of China, Hohhot, Inner Mongolia 010020, China
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Clc Number:S718;S157
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Abstract:

[Objective] The soil aggregate stability and soil erodibility in different vegetation types of exposed feldspathic sandstone regions in the Baojiagou watershed were studied in order to provide scientific guidance for vegetation construction and reducing coarse sand into the Yellow River. [Methods] Soil aggregate stability and soil erodibility in different vegetation types were evaluated by using the Le Bissonnais method. [Results] ① Under the conditions of the slow-wetting treatment, soil structure was dominated by 2 mm and larger aggregates. Under the conditions of the pre-wetting disturbance treatment, the proportion of 2 mm and larger aggregates was 14.79%~40.17%. Under the conditions of the fast-wetting treatment, the content of 2 mm and larger aggregates was 4.69%~15.11%. ② The destruction rate of soil aggregates was influenced by vegetation, and followed the order of bare land > grass land > Pinus tabuliformis forest > Prunus armeniaca forest > Caragana korshinskii forest > Hippophae rhamnoides forest. ③ The soil erodibility K value in the exposed soft rock area ranged from 0.045 to 0.092, and the disintegration rate of soil in different vegetation types ranged from 0.48 to 1.38 g/min. [Conclusion] H. rhamnoides and other artificial vegetation can significantly enhance the stability of soil aggregate structure, reduce soil erodibility, improve soil corrosion resistance, and thus effectively reduce erosion and sediment yield processes.

Key words:exposed feldspathic sandstone region;Le Bissonnais method;soil aggregate stability;soil erodibility

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杨振奇,郭建英,秦富仓,刘铁军,刘艳萍,邢恩德.裸露砒砂岩区不同植被类型土壤团聚体稳定性与抗蚀性能[J].水土保持通报英文版,2021,41(3):8-14

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Received:November 03,2020
Revised:January 25,2021
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Online: July 08,2021
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