Characteristics and influencing factors of the priority flow of desert gravel pavement in the central Hexi Corridor

doi:10.7522/j.issn.1000-694X.2025.00139

Journal of Desert Research ›› 2025, Vol. 45 ›› Issue (6): 220-230.DOI: 10.7522/j.issn.1000-694X.2025.00139

Characteristics and influencing factors of the priority flow of desert gravel pavement in the central Hexi Corridor

Yifan Cao¹(), Dejin Wang¹^,²^,³(), Jingyi Yang⁴, Jinkai He¹, Jing Chen¹, Chenting Zhao¹

^1.School of Modern Agricultural Engineering /, Kunming University of Science and Technology，Kunming 650500，China
^2.Yunnan Field Scientific Observatory of Water-Soil-Crop System in Seasonal Dry Areas /, Kunming University of Science and Technology，Kunming 650500，China
^3.International Joint Laboratory of Intelligent Agricultural Engineering Technology and Equipment, Kunming University of Science and Technology，Kunming 650500，China
^4.School of Water Conservancy Engineering，Lanzhou University of Resources and Environment Technology，Lanzhou 730021，China

Received:2025-07-09 Revised:2025-09-09 Online:2025-11-20 Published:2025-11-26
Contact: Dejin Wang

Abstract

Abstract:

Exploring the priority flow replenishment pattern is of great significance for maintaining the development of desert gravel area vegetation and the stability of regional ecosystems. However， the formation mechanism， transport path and ecological hydrological effects of this pattern remain unclear. Therefore， three sample plots （each consisting of flat areas and depressions） were selected in the desert gravel area of the northern part of Linze Oasis in the central part of the Hexi Corridor to conduct soil profile investigations and dye-tracing experiments， and combined with image processing technology and Pearson correlation analysis methods to analyze the characteristics of priority flow and its influencing factors in the two types of micro-landforms. （1） The soil profile investigation shows that the soils in both flat areas and depressions are soil-gravel mixed media， with a higher content of fine soil； compared to the depressions， the surface gravel coverage in the flat areas is higher， and the gravel layer is thicker， but there is no significant difference in the thickness of the pore space layer （Av layer）； the total porosity， capillary porosity， saturated water content and field capacity water content of the top 30 cm of the flat surface soil layer are all relatively high， while its bulk density and soil saturated water conductivity are relatively low. （2） The dye-tracing experiment shows that the infiltration range of the substrate flow in the flat area is between 0-2.5 cm， and that in the depression is between 0-4.33 cm. The water transport is mainly by substrate flow and priority flow， with the proportion of priority flow being 41.82%±18.44% and 58.91%±10.79% respectively， and the characteristic parameters K， L_i and L of the priority flow in the depression are larger. （3） Pearson correlation analysis shows that the thickness of the Av layer in the flat area restricts the generation of priority flow， while the surface gravel coverage， coarse gravel and sand particle content in the depression significantly promote the development of priority flow， while the content of fine gravel and medium gravel significantly inhibits the development of priority flow.

Key words: desert pavement, primary flow, micro-geomorphology, Av layer, Hexi Corridor

CLC Number:

P931.3

Yifan Cao, Dejin Wang, Jingyi Yang, Jinkai He, Jing Chen, Chenting Zhao. Characteristics and influencing factors of the priority flow of desert gravel pavement in the central Hexi Corridor[J]. Journal of Desert Research, 2025, 45(6): 220-230.

Figures/Tables 8

References 47

[1]	Dietze M， Dietze E， Lomax J，et al.Environmental history recorded in aeolian deposits under stone pavements，Mojave Desert，USA［J］.Quaternary Research，2016，85（1）：4-16.
[2]	Adelsberger K A， Smith J R.Desert pavement development and landscape stability on the Eastern Libyan Plateau，Egypt［J］.Geomorphology，2008，107（3/4）：178-194.
[3]	Wood Y A， Graham R C， Wells S G.Surface control of desert pavement pedologic process and landscape function，Cima Volcanic field，Mojave Desert，California［J］.Catena，2005，59（2）：205-230.
[4]	汪美宏，赵慧，吴晓兰，等.考虑气候时间效应的额尔齐斯河流域植被动态变化及其驱动力［J］.生态学报，2024，44（22）：10352-10366.
[5]	高艳利.生物结皮对土壤呼吸影响研究进展［J］.内蒙古林业，2025（3）：38-41.
[6]	郭伟，董正武，李光莹，等.新疆柴窝堡湖滨荒漠区4种灌木生理生化特性的季节变化［J］.应用生态学报，2025，36（5）：1350-1360.
[7]	杜华栋，刘研，毕银丽，等.干旱砾漠区不同微地貌单元土壤性状及真菌群落变化特征［J］.干旱区研究，2024，41（3）：421-431.
[8]	赵景波，马延东，邵天杰，等.巴丹吉林大沙山地区盐膜微地貌与形成机制［J］.科学通报，2024，69（17）：2441-2453.
[9]	乔宇，徐先英.干旱荒漠区物理结皮的土壤水文效应［J］.中国农学通报，2015，31（7）：206-211.
[10]	张进虎.巴丹吉林沙漠高大沙山柽柳生态水文指示及其水来源［D］.兰州：兰州大学，2018.
[11]	王旭.甘肃靖远旱区碱化盐土水盐运移及调控效应研究［D］.银川：宁夏大学，2019.
[12]	Abrahams A D， Parsons A J.Relation between infiltration and stone cover on a semiarid hillslope，Southern Arizona［J］.Journal of Hydrology，1991，122（1/4）：49-59.
[13]	陈红，付兴涛.连续降雨条件下晋西黄绵土坡面径流路径及微地形变化［J］.水土保持学报，2025，39（3）：78-87.
[14]	单玉琳，解建仓，韩霁昌，等.黄土高原坡面土壤水分特征及时间稳定性：以延安市九龙泉沟为例［J］.中国水土保持科学，2021，19（6）：1-7.
[15]	王德金.临泽绿洲北部荒漠砾幂特征及其水文生态作用研究［D］.北京：中国科学院大学，2021.
[16]	Wood Y A， Graham R C， Wells S G.Surface mosaic map unit development for a desert pavement surface［J］.Journal of Arid Environments，2002，52（3）：305-317.
[17]	Wang D， Zhao W， Zhou H，et al.Mosaic desert pavement influences water infiltration and vegeta-tion distribution on fluvial fan surfaces［J］.Hydrological Processes，2021，35（9）：e14373.
[18]	杨德慧.鄱阳湖沙地生态过渡带土壤粒度和水分特征及其环境指示意义［D］.南昌：东华理工大学，2024.
[19]	付晨馨，种培芳，周海，等.河西走廊绿洲边缘降水对土壤水分特征的影响［J］.甘肃农业大学学报，2023，58（1）：137-145.
[20]	耿林昇，李红丽，董智，等.放牧对希拉穆仁草原土壤入渗过程影响的定量评估［J］.水土保持学报，2022，36（2）：70-77.
[21]	Wang X P， Li X R， Xiao H L，et al.Effects of surface characteristics on infiltration patterns in an arid shrub desert［J］.Hydrological Processes，2006，21（1）：72-79.
[22]	Meadows D G， Young M H， Mcdonald E V.Influence of relative surface age on hydraulic properties and infiltration on soil associated with desert pavements［J］.Catena，2008，72（1）：169-178.
[23]	Soil Science Division Staff USDA.Soil Survey Manual［M］.Washington DC：United States Department of Agriculture，2017：121.
[24]	Shukla M K.Soil Physics：An Introduction［M］.Florida，USA：CRC Press，2014：164-165.
[25]	李朝英，郑路.利用环刀法测定土壤水分精度的影响因素［J］.水土保持通报，2019，39（2）：118-123.
[26]	鲁如坤.土壤农业化学分析方法［M］.北京：中国农业科技出版社，2000：269-271.
[27]	成兆金，徐淑米，李长军.测定土壤田间持水量的环刀滴水法探讨［J］.江西农业学报，2018，30（10）：50-54.
[28]	邓莹莹，廖煜亮，容清标，等.桂北地区不同林龄杉木人工林优先流的变异特征［J］.生态学杂志，2025，44（2）：389-395.
[29]	侍世玲，韩若琳，蒙仲举.半干旱区放牧管理草地土壤优先流特征及其影响因素研究［J］.节水灌溉，2023（8）：110-120.
[30]	刘超，姚光兴，安娟，等.鲁中南花岗岩丘陵区坡耕地不同厚度土壤中优先流的发育特征［J］.水土保持通报，2021，41（4）：25-32.
[31]	程竞萱，程金花，郑欣，等.不同植被覆盖下土壤优先流特征及影响因素［J］.河南农业大学学报，2018，52（6）：973-982.
[32]	Van Schaik N L M B.Spatial variability of infiltration patterns related to site characteristics in a semi-arid watershed［J］.Catena，2009，78（1）：36-47.
[33]	闫存杰，张文奇，唐志颖，等.江苏省空青山林地土壤物理性质对优先流的影响［J］.水土保持学报，2025，39（3）：116-126.
[34]	Rossi A M， Kendrick K J， Graham R C.Pedogenic evolution on the arid Bishop Creek moraines，Eastern Sierra Nevada，California［J］.Catena，2019，183：104222.
[35]	Wells S G， Mcfadden L D， Poths J，et al.Cosmogenic ³He surface-exposure dating of stone pave-ments：implications for landscape evolution in deserts［J］.Geology，1995，23（7）：613-616.
[36]	Pietrasiak N， Drenovsky R E， Santiago L S，et al.Biogeomorphology of a Mojave Desert landscap：configurations and feedbacks of abiotic and biotic land surfaces during landform evolution［J］.Geomorphology，2014，206：23-36.
[37]	Mcauliffe J R， Mcdonald E V.Holocene environmental change and vegetation contraction in the Sonoran Desert［J］.Quaternary Research，2005，65（2）：204-215.
[38]	Drake N A， Blench R M， Bristow C S，et al.Ancient watercourses and biogeography of the Sahara explain the peopling of the desert［J］.Proceedings of the National Academy of Sciences of the United States of America，2011，108（2）：458-462.
[39]	Adelsberger K A， Smith J R， Mcpherron S P，et al.Desert pavement disturbance and artifact taphonomy：a case study from the Eastern Libyan Plateau，Egypt［J］.Geoarchaeolog，2013，28（2）： 112-130.
[40]	Kar A.Aeolian processes and bedforms in the Thar Desert［J］.Journal of Arid Environments，1993，25（1）：83-96.
[41]	Yang J， Zhang G， Yang F，et al.Controlling effects of surface crusts on water infiltration in an arid desert area of Northwest China［J］.Journal of Soils and Sediments，2016，16（10）： 2408-2418.
[42]	Chamizo S， Cantón Y， Lázaro R，et al.Crust composition and disturbance drive infiltration through biological soil crusts in semiarid ecosystems［J］.Ecosystems，2012，15（1）：148-161.
[43]	郑思宇，许迪，焦平金，等.土地利用类型对内蒙古盐碱地土壤大孔隙特征的影响［J］.农业工程学报，2025，41（11）：71-79.
[44]	李响，郭月峰，祁伟.荒漠草原不同退化程度土壤优先流发育特征［J］.水土保持学报，2025，39（4）：22-30.
[45]	李伟，康向光，袁志斌，等.塔克拉玛干沙漠南缘灌丛沙堆土壤动物洞穴特征及其对优先流的影响［J］.干旱区资源与环境，2025，39（2）：183-191.
[46]	Mandal U K， Rao K V， Mishra P K，et al.Soil infiltration，runoff and sediment yield from a shallow soil with varied stone cover and intensity of rain［J］.European Journal of Soil Science，2005，56（4）：435-443.
[47]	Ma D， Shao M.Simulating infiltration into stony soils with a dual‐porosity model［J］.European Journal of Soil Science，2008，59（5）：950-959.

样地	样地1	样地2	样地3
地理坐标	39°28′12.45″ N，100°09′50.65″ E	39°27′18.06″ N，100°09′04.91″ E	39°25′10.15″ N，100°07′38.40″ E
地貌特征	位于剥蚀山丘下方典型水道两侧，地表平坦，受绿洲影响较小，有大量细小侵蚀沟	位于剥蚀山丘与绿洲间,地表平坦，侵蚀沟宽度较宽，有大面积流水冲刷痕迹	位于剥蚀山丘下方，距离农田较近，地表平坦，受绿洲影响较大，有大量细小冲蚀沟纵横分布
砾石覆盖度	25.61%	29.15%	23.23%
地表砾石形态	R1(12%)、R2(33%)、R3(46.5%)、R4(8%)、R5(0.5%)	R1(16.5%)、R2(35.5%)、R3(41.5%)、R4(6%)、R5(0.5%)	R1(19.5%)、R2(36%)、R3(36%)、R4(8.5%)
剖面形态	平地：砾幂层-Av-Bk-Btk 洼地：砾幂层-Av-Bk-Btk	平地：砾幂层-Av-Bk-Btk 洼地：砾幂层-Av-Bk-Btk	平地：砾幂层-Av-Bk-Btk 洼地：砾幂层-Av-Bk-Btk
土壤结构	中等，呈块状、棱柱状和片状	中等，块状、棱柱状和片状；弱-强，块状结构（部分）	中等，块状、棱柱状和片状；弱-强，块状结构（部分）
代表性植被	泡泡刺、灌木亚菊、红砂、籽蒿、画眉草、白茎盐生草等	泡泡刺、红砂、蒙古韭、籽蒿、画眉草、狗尾草、白茎盐生草、刺沙蓬等	泡泡刺、红砂、蒙古韭、骆蹄瓣、籽蒿、画眉草、狗尾草、虎尾草、白茎盐生草等
植被覆盖度	20%~30%	15%~30%	10%~20%

样地	样地1	样地2	样地3
地理坐标	39°28′12.45″ N，100°09′50.65″ E	39°27′18.06″ N，100°09′04.91″ E	39°25′10.15″ N，100°07′38.40″ E
地貌特征	位于剥蚀山丘下方典型水道两侧，地表平坦，受绿洲影响较小，有大量细小侵蚀沟	位于剥蚀山丘与绿洲间,地表平坦，侵蚀沟宽度较宽，有大面积流水冲刷痕迹	位于剥蚀山丘下方，距离农田较近，地表平坦，受绿洲影响较大，有大量细小冲蚀沟纵横分布
砾石覆盖度	25.61%	29.15%	23.23%
地表砾石形态	R1(12%)、R2(33%)、R3(46.5%)、R4(8%)、R5(0.5%)	R1(16.5%)、R2(35.5%)、R3(41.5%)、R4(6%)、R5(0.5%)	R1(19.5%)、R2(36%)、R3(36%)、R4(8.5%)
剖面形态	平地：砾幂层-Av-Bk-Btk 洼地：砾幂层-Av-Bk-Btk	平地：砾幂层-Av-Bk-Btk 洼地：砾幂层-Av-Bk-Btk	平地：砾幂层-Av-Bk-Btk 洼地：砾幂层-Av-Bk-Btk
土壤结构	中等，呈块状、棱柱状和片状	中等，块状、棱柱状和片状；弱-强，块状结构（部分）	中等，块状、棱柱状和片状；弱-强，块状结构（部分）
代表性植被	泡泡刺、灌木亚菊、红砂、籽蒿、画眉草、白茎盐生草等	泡泡刺、红砂、蒙古韭、籽蒿、画眉草、狗尾草、白茎盐生草、刺沙蓬等	泡泡刺、红砂、蒙古韭、骆蹄瓣、籽蒿、画眉草、狗尾草、虎尾草、白茎盐生草等
植被覆盖度	20%~30%	15%~30%	10%~20%

类型	参数	染色面积比 K/%	基质流入渗深度 H_mat/cm	优先流比例 K_p/%	优先流长度指数 L_i /%	水分扩散深度 L/cm
平地	平均值±标准差	14.43±8.92	2.50±1.50	41.82±18.44	84.25±10.66	31.22±4.24
	最大值	23.20	4.00	60.53	95.48	33.85
	最小值	4.30	2.00	23.71	74.33	26.67
	变异系数	0.62	0.60	0.44	0.13	0.14
洼地	平均值±标准差	15.71±4.26	4.33±1.53	58.91±10.79	84.37±6.13	33.16±3.51
	最大值	16.93	6.00	61.75	89.00	36.53
	最小值	5.33	3.00	23.67	83.01	28.58
	变异系数	0.27	0.35	0.18	0.07	0.11

类型	参数	染色面积比 K/%	基质流入渗深度 H_mat/cm	优先流比例 K_p/%	优先流长度指数 L_i /%	水分扩散深度 L/cm
平地	平均值±标准差	14.43±8.92	2.50±1.50	41.82±18.44	84.25±10.66	31.22±4.24
	最大值	23.20	4.00	60.53	95.48	33.85
	最小值	4.30	2.00	23.71	74.33	26.67
	变异系数	0.62	0.60	0.44	0.13	0.14
洼地	平均值±标准差	15.71±4.26	4.33±1.53	58.91±10.79	84.37±6.13	33.16±3.51
	最大值	16.93	6.00	61.75	89.00	36.53
	最小值	5.33	3.00	23.67	83.01	28.58
	变异系数	0.27	0.35	0.18	0.07	0.11

Characteristics and influencing factors of the priority flow of desert gravel pavement in the central Hexi Corridor

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