Relationship of benggang number, area, and hypsometric integral values at different landform developmental stages

Bibliographic Data

ID21647434
AuthorsYishan Liao (0000-0003-1621-6810, Guangdong Key Laboratory of Integrated Agro‐environmental Pollution Control and Management Guangdong Engineering Center of Non‐point Source Pollution Prevention Technology, Guangdong Institute of Eco‐environment Science & Technology Guangzhou PR China), Mingguo Zheng (0000-0001-6907-0937, Guangdong Key Laboratory of Integrated Agro‐environmental Pollution Control and Management Guangdong Engineering Center of Non‐point Source Pollution Prevention Technology, Guangdong Institute of Eco‐environment Science & Technology Guangzhou PR China, corresponding author), Dingqiang Li (Guangdong Key Laboratory of Integrated Agro‐environmental Pollution Control and Management Guangdong Engineering Center of Non‐point Source Pollution Prevention Technology, Guangdong Institute of Eco‐environment Science & Technology Guangzhou PR China, corresponding author), Xinliang Wu (0000-0002-2450-2633, Guangdong Key Laboratory of Integrated Agro‐environmental Pollution Control and Management Guangdong Engineering Center of Non‐point Source Pollution Prevention Technology, Guangdong Institute of Eco‐environment Science & Technology Guangzhou PR China, corresponding author), Chen Liang (0000-0002-8444-8050, Guangdong Key Laboratory of Integrated Agro‐environmental Pollution Control and Management Guangdong Engineering Center of Non‐point Source Pollution Prevention Technology, Guangdong Institute of Eco‐environment Science & Technology Guangzhou PR China, corresponding author), Xiaodong Nie (Guangdong Key Laboratory of Integrated Agro‐environmental Pollution Control and Management Guangdong Engineering Center of Non‐point Source Pollution Prevention Technology, Guangdong Institute of Eco‐environment Science & Technology Guangzhou PR China, corresponding author), Bin Huang (0000-0001-9724-675X, Guangdong Key Laboratory of Integrated Agro‐environmental Pollution Control and Management Guangdong Engineering Center of Non‐point Source Pollution Prevention Technology, Guangdong Institute of Eco‐environment Science & Technology Guangzhou PR China, corresponding author), Zhenyue Xie (Guangdong Key Laboratory of Integrated Agro‐environmental Pollution Control and Management Guangdong Engineering Center of Non‐point Source Pollution Prevention Technology, Guangdong Institute of Eco‐environment Science & Technology Guangzhou PR China, corresponding author), Zaijian Yuan (0000-0003-2834-8685, Guangdong Key Laboratory of Integrated Agro‐environmental Pollution Control and Management Guangdong Engineering Center of Non‐point Source Pollution Prevention Technology, Guangdong Institute of Eco‐environment Science & Technology Guangzhou PR China, corresponding author), Changyuan Tang (0000-0003-1747-589X, School of Geography and Planning Sun Yat‐sen University Guangzhou PR China, corresponding author)
Year2020
Volume31
Issue16
Pages2319-2328
Publication date2020-10-01
Open AccessYes
TypeARTICLE
VenueLand Degradation and Development (JOURNAL)
Journal identifiersISSN: 1085-3278 • E-ISSN: 1099-145X
PublisherWiley (PUBLISHER • GB)
DOI10.1002/ldr.3571
OpenAlexW3005660937
LanguageEN
Citations received1
References cited30

In south China, benggang erosion causes intensive soil loss and land degradation. However, the mechanisms underlying its development remain unclear. In this study, the relationship between soil erosion, landform development, and benggang development in Jiangxi and Fujian provinces of China was investigated by using a soil erosion model and hypsometric integral (HI) values. Benggang number and area density are shown to increase first and then decrease with HI, with the highest benggang number density (0.27 benggang km −2 ) at a HI value between 0.18 and 0.20, the largest benggang area density (0.0016 km 2 km −2 ) at a HI value between 0.14 and 0.16, and 78.66% of benggang in the stage of HI > 0.16. The current regional benggang erosion shows an aggravating trend, with a denudation rate of 0.04–5.7 mm yr −1 ,reducing HI by 1 × 10 −7 –1.03 × 10 −4 per year in each watershed. The active period of regional benggang varies from 2,029 to 53,999 years with an average of 26,371 years. The landform development shows a close relationship with benggang evolution and can be divided into four zones: no benggang, historical benggang, current benggang, and potential benggang. Current benggang dominated (70.52%) in Jiangxi Province, while potential benggang (68.60%) in Fujian Province, suggesting a fall‐rise pattern for this erosion in the future. This study contributes to the understanding of the regional benggang development and the adoption of corresponding measures to control it

Archaeology · China · Denudation · Erosion · Geography · Geomorphology · Landform · Physical geography · Watershed · Aeolian processes and effects · Environmental Science · Hydrology and Sediment Transport Processes · Soil erosion and sediment transport · Geology

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