Objective To clarify the improvement effects and stage-specific characteristics of comprehensive Benggang (BG) management on soil physical properties and soil water storage capacity, providing a scientific basis for evaluating management effectiveness and optimizing technical practices. Methods A typical BG in Changting County, Fujian Province, China, was selected as the study site. Plots restored for 6, 10, and 23 years (6 a,10 a,23 a) were selected with an untreated BG as the control. Soil samples were collected from the upper, middle, and lower slope positions at two depths (0-20, 20-40 cm). Physical indicators including bulk density, porosity, texture, and water retention characteristics were measured, and soil water storage capacity was calculated to analyze their spatiotemporal dynamics. Results 1) Soil physical properties showed non-linear changes with increasing management duration. In the 6 a plot, non-capillary porosity at the upper slope increased to 14.91%, indicating initial recovery characteristics. In the 10 a plot, better overall improvement was observed, with total porosity reaching 55.65% and bulk density decreasing to 1.11 g/cm³ at the middle slope. In the 23 a plot, most indices remained at relatively favorable levels, and changes in some indices slowed down, possibly suggesting a transition toward a stable stage. 2) The influence of slope position on soil physical properties was generally greater than that of management duration. In the 10 a plot, clay content at the middle slope increased to 4.35%. At the lower slope, sand content decreased under the combined effects of sediment interception by check dams and vegetation-induced soil stabilization. 3) Soil water holding function shifted from a non-capillary water retention mode to a capillary water adsorption mode. In the 10 a plot, soil water storage capacity via water adsorption at the lower slope reached 1 013.73 t/hm2, indicating a marked enhancement in effective soil water storage capacity. In the 23 a plot, the increase in water storage capacity tended to slow down. Conclusion Comprehensive BG management effectively reshapes the spatial pattern of slope soil physical structure and soil water storage capacity in experimental plots through zonal regulation. The results indicate the integrated management approach may help improve soil physical structure and water storage function on BG slopes, providing theoretical support for the precise control of soil and water loss in BG erosion areas.
因此,本研究采用以空间代时间的研究方法,以未治理崩岗为对照,设置6、10、23 a 3种治理年限的恢复样地,系统探究不同坡位和土层深度的土壤物理结构及蓄水能力的演变特征,旨在加深对崩岗生态修复过程中土壤结构重构与水文功能恢复机理的认识,为南方红壤区崩岗治理工程的长期效益评价及后续精准管护提供理论支撑和科学依据。
ZHUX C, GAOL, WEIX R, et al. Progress and prospect of studies of Benggang erosion in southern China[J].Geoderma,2023,438:e116656.
[2]
HUANGJ, JIANGD H, DENGY S, et al. Soil physicochemical properties and fertility evolution of permanent gully during ecological restoration in granite hilly region of south China[J].Forests,2021,12(4):e510.
XUY Y, XIEJ, LUOM, et al. Comprehensive evaluation of soil quality of five planting modes in the initial stage of ecological rubber garden construction[J].Science of Soil and Water Conservation,2025,23(6):167-174.
XIEF Q, LIS G, QUY, et al. Practice of partition management of Benggang in red soil hilly area of southeast Guangxi[J].Soil and Water Conservation in China,2025(1):54-56.
[7]
LIAOK T, SONGY J, XIES H, et al. Quantitative analysis of the factors influencing the spatial distribution of Benggang landforms based on a geographical detector[J].ISPRS International Journal of Geo-Information,2022,11(6):e337.
CHENZ C, GUOZ X, ZHANGZ R. Analysis of soil-water characteristics and their correlation with collapsing gully in the high-occurrence area of collapsing gully in Anxi,Fujian[J].Science of Soil and Water Conservation,2025,23(5):216-224.
[10]
段晓倩.花岗岩土体异质性与崩岗坡面土壤水文过程[D].武汉:华中农业大学,2020.
[11]
DUANX Q. Heterogeneity of granite soil and hydrological process on benggang slope[D].Wuhan: Huazhong Agricultural University,2020.
WANGQ K, ZHANGX, YANGW, et al. Effects of different types of vegetation restoration on soil pore characteristics in Benggang erosion areas[J].Acta Pedologica Sinica,2025,62(5):1282-1293.
[14]
HUANGB, YANGM, ZHONGH, et al. Specific ion effects on the soil shear strength and clay surface properties of collapsing wall in Benggang[J].Peer J,2024,12:e17796.
XIEY M, LING G, SHANGGUANY B, et al. Land use practice after land reclamation management of Benggang development in Changting County[J].Subtropical Soil and Water Conservation,2024,36(2):30-33.
[17]
国家林业局.森林土壤分析方法[M].北京:中国标准出版社,1999.
[18]
National Forestry Administration. Forest soil analysis method[M].Beijing:Standards Press of China,1999.
LUC J, CHEND, GUOX X, et al. Water storage capacity and the infiltration characteristics of soil in different reclamation modes in iron tailings[J].Science of Soil and Water Conservation,2019,17(4):59-66.
LIUZ X, GAOP, MUX M, et al. Effects of vegetation restoration on soil hydrophysical properties in Loess region[J].Research of Soil and Water Conservation,2023,30(6):206-213.
WUH Q, ZHAOL, YANGY H, et al. Application status and prospects of vegetation restoration technology based on soil consolidation for high and steep rocky slope[J].Science of Soil and Water Conservation,2025,23(4):12-22.
ZHANGR D, MAH H, GAOP, et al. Changes in soil macropore characteristics and its influencing factors in loess hilly and gully region[J].Research of Soil and Water Conservation,2025,32(4):59-67.
WANGH, XUS H, CHENY J, et al. Soil column seepage test on clay particles migration process of granite weathered soil in Fujian and Guangdong areas,China[J].Mountain Research,2024,42(1):132-142.
LIUJ T, ZHANGJ J, SUNR X, et al. Effects of the conversion time of cropland into forestry on soil physical properties in loess area of western Shanxi Province of northern China[J].Journal of Beijing Forestry University,2020,42(1):94-103.
ZHANGY F, WANGX, PANH Z, et al. Long-term enclosure restoration effects and their environmental dependencies in desert steppes of northern China[J].Acta Ecologica Sinica,2025,45(17):8529-8543.
SHUX X. Study on the formation mechanism of soil aggregate structure and the influencing factors on its stability[J].Journal of Jingdezhen University,2022,37(6):46-49.
ZHANGZ F, ZHANGX Z. Effects of vegetation restoration on soil physical parameters on the Loess Plateau:A meta-analysis based on published data[J].Progress in Geography,2021,40(6):1012-1025.
[37]
GUF, ZHOUM H, ZHUB, et al.Converting Cropland to Forest Improves Soil Water Retention Capacity by Changing Soil Aggregate Stability and Pore-Size Distribution[J].Sustainability,2025,17(10):4363.
[38]
CHENL, ZHANGK L, LIY T. Spatial variability of soil physicochemical properties under different land uses impacted by erosion on karst hillslopes in Southwest China[J].Earth Surface Processes and Landforms,2024,49(7):2245-2259.
WEIJ X, DENGY S. Analysis of similarities and differences between Benggang erosion in granitic red soil hilly area and typical gully erosion[J].Soils,2024,56(4):718-725.
[41]
高玉茹.晋北露天矿区植被恢复对土壤微生物群落与功能的影响[D].太原:山西大学,2024.
[42]
GAOY R. Influence of revegetation on soil microbial communities and functions in opencast mining areas in north Shanxi Province[D].Taiyuan: Shanxi University,2024.
[43]
BAIL C, JIAOJ Y, WANGN, et al. Structural connectivity of sediment affected by check dams in loess hilly-gully region,China[J].Water,2021,13(19):e2644.
YOUY J, WANGY X, ZHANGH F, et al. Effects of different human disturbances on soil water conservation and fertility of natural secondary shrub[J].Acta Ecologica Sinica,2018,38(3):1097-1105.
FANR, XUH F, LIC, et al. Changes in plant diversity and water use efficiency during the restoration process of subtropical forests[J].Geographical Research,2024,43(3):776-790.