干旱区生态环境知识资源中心(Arid): 库布齐沙漠北缘机械沙障对地表土壤可蚀性的影响

Arid

	库布齐沙漠北缘机械沙障对地表土壤可蚀性的影响
其他题名	Effects of Mechanical Sand Barriers on Soil Erodibility on Northern Edge of Kubuqi Desert
	靳灵娜; 党晓宏; 高永; 韩彦隆; 雷虹娟; 张超
来源期刊	水土保持通报
ISSN	1000-288X
出版年	2021
卷号	41 期号:3 页码:1000-288X
中文摘要	[目的]明确机械沙障铺设对风沙区地表可蚀性特征的影响,为防沙工程中沙障的合理应用提供理论依据。[方法]采取库布齐沙漠北缘迎风坡不同年限铺设的生物基可降解聚乳酸(PLA)沙袋沙障、沙柳沙障和芦苇沙障不同坡位的土壤样品,分析了地表020cm深度土壤有机质含量、土壤粒径组成和土壤可蚀性K值。[结果]①沙障铺设后利于土壤有机质含量增加,其中2m2m沙柳沙障对土壤有机质的积累效果最好,且迎风坡上部土壤有机质含量相对较少。②沙障铺设使得障格内黏粒、粉粒和细砂含量增加,随设障年限的增加其呈增加趋势;土壤020cm范围内均以细砂为主。③铺设机械沙障可降低土壤可蚀性,各立地条件下沙丘下部障格内土壤抗蚀性最好;3种机械沙障中沙柳沙障抗蚀性较高;随设障年限增加障格内土壤抗蚀性增强,设障4a后,2m2m铺设规格障格内的土壤受侵蚀风险较小;土壤可蚀性K值与土壤有机质含量呈极显著(p<0.01)负相关。[结论]沙障铺设使土壤有机质含量增加,利于细粒物质的积累,增强土壤抗蚀性,是治理流动沙丘有效的风蚀防治措施。建议在库布齐沙漠北缘铺设机械沙障时,可采用迎风坡上部铺设1m1m的生物基可降解聚乳酸(PLA)沙袋沙障,中部铺设2m2m的沙柳沙障,下部铺设2m*2m的生物基可降解聚乳酸(PLA)沙袋沙障的模式。
英文摘要	[Objective]The effects of mechanical sand barriers on surface erodibility in sandy areas which experience windy conditions were clarified in order to provide a theoretical basis for the application of a sand barrier in sand prevention engineering.[Methods]Soil samples taken from biodegradable polylactide(PLA) sandbag barriers,Salix psam mophila sand barriers and reed sand barriers laid in different years on the windword slope of the northern margin of Kubuqi Desert were used to analyze soil organic matter content, soil particle size composition and soil erodibility K value at the 020cm depth.[Results]① The laying of sand barriers increased soil organic matter content.The 2m2mS.psammophilasand barrier had the best effect on the accumulation of soil organic matter,and the soil organic matter content on the windward slope was relatively small.② Laying of sand barriers increased the content of clay,silt,and fine sand in the barriers, and those contents increased with increased laying time.The soil in 020cm layer was dominated by fine sand.③ Laying of mechanical sand barriers could reduce soil erodibility,and the soil in the lower barriers of the dunes had the best erosion resistance under various site conditions.Among the three types of mechanical sand barriers,the S.psammophila sand barriers had the highest erosion resistance.Barrier effectiveness increased with laying time,and soil erosion resistance also increased.Four years after installation of sand barriers,the risk of soil erosion within the 2m2mlaying specification was relatively small.The soil erodibility K value and the soil organic matter content were negatively(p<0.01)correlated.[Conclusion] The laying of sand barriers increases the content of soil organic matter,and is conducive to the accumulation of fine-grained substances,thereby enhancing soil anti-erodibility.It is an effective wind erosion control measure for controlling mobile sand dunes.It is recommended that when laying mechanical sand barriers on the northern edge of the Kubuqi Desert,a 1m1mPLA sandbag barrier should be laid on the upper part of the windward slope,a 2m2msallow sand barrier should be laid in the middle part,and a 2m*2mPLA sandbag barrier should be laid on the lower part of the windward slope.
中文关键词	土壤可蚀性K值 ; 沙柳沙障 ; PLA沙障 ; 芦苇沙障 ; 库布齐沙漠
英文关键词	soil erodible Kvalue Salix psammophilasand barriers polylactic acid sand barriers reed sand barriers Kubuqi Desert
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:7008909
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/365291
作者单位	靳灵娜, 内蒙古农业大学沙漠治理学院, 呼和浩特, 内蒙古 010018, 中国.; 高永, 内蒙古农业大学沙漠治理学院, 呼和浩特, 内蒙古 010018, 中国.; 韩彦隆, 内蒙古农业大学沙漠治理学院, 呼和浩特, 内蒙古 010018, 中国.; 张超, 内蒙古农业大学沙漠治理学院, 呼和浩特, 内蒙古 010018, 中国.; 党晓宏, 内蒙古农业大学沙漠治理学院;;内蒙古杭锦荒漠生态定位观测研究站, ;;, 呼和浩特;;鄂尔多斯, 内蒙古;;内蒙古 010018;;017400, 中国.; 雷虹娟, 内蒙古达茂旗民安镇综合保障和技术推广中心, 包头, 内蒙古 014300, 中国.
推荐引用方式 GB/T 7714	靳灵娜,党晓宏,高永,等. 库布齐沙漠北缘机械沙障对地表土壤可蚀性的影响[J]. 内蒙古农业大学,2021,41(3):1000-288X.
APA	靳灵娜,党晓宏,高永,韩彦隆,雷虹娟,&张超.(2021).库布齐沙漠北缘机械沙障对地表土壤可蚀性的影响.水土保持通报,41(3),1000-288X.
MLA	靳灵娜,et al."库布齐沙漠北缘机械沙障对地表土壤可蚀性的影响".水土保持通报 41.3(2021):1000-288X.