摘要
为了探究库布其沙漠光伏板间低立式沙障沉积物粒度特征,为光伏沙害提供理论依据,以聚乳酸(Polylactic acid,PLA)沙障、纱网沙障、草方格沙障3种不同类型沙障为研究对象,以裸沙为对照,采用五点取样法在障格内0~30 cm土壤剖面分层取样,分析不同沙障类型土壤粒度分布特征。结果表明:(1)3种沙障类型土壤质地均表现细化趋势。纱网沙障黏粒、粉粒、极细砂总含量显著高于其他2种类型,达8.43%,较裸沙显著增加了123.02%。(2)不同沙障类型0~30 cm各土层土壤粒度参数均显著高于裸沙(P<0.05),纱网沙障粒度分布曲线呈现正偏态,峰形尖锐,PLA沙障和草方格沙障粒度分布曲线呈近对称状态,峰形中等,近似正态分布。(3)不同类型沙障土壤粒径频率分布曲线走向呈单峰型,纱网沙障土壤累积频率曲线变化幅度最为显著,且始终略高于其他2种类型,主要作用于0~10 cm土层。综上所述,土壤粒度组成对不同类型沙障的响应存在差异,但整体对沙丘的固定和风沙土成土过程起到积极作用,纱网沙障作用效果相对较好。
In order to explore the sediments grain size characteristics of low vertical sand barriers between photovoltaic panels in Hobq Desert and provide a theoretical basis for photovoltaic sand damage,the soil particle size distribution characteristics of three sand barrier types(i.e.PLA sand barrier,gauze sand barrier and grass grid sand barrier)were analyzed.The five-point sampling method was used to collect stratified soil samples from 0−30 cm profiles within the barrier grids.The results showed that:(1)The soil texture of the three sand barriers all showed the gradually refining trend.The content of clay,silt and very fine sand in gauze sand barrier was significantly higher than that of the other two types,amounting to 8.43%,which was 123.02%higher than that of bare sand(P<0.05).(2)The soil particle size parameters of 0−30 cm soil layers of different sand barrier types were significantly higher than those of bare sand.The particle size distribution curve of gauze sand barrier showed positive skewness and sharp peak shape.The particle size distribution curves of PLA sand barrier and straw checkerboard sand barrier showed nearly symmetrical state,medium peak and approximately normal distribution.(3)The frequency distribution curves of soil particle size under all sand barriers showed unimodal pattern.The cumulative frequency curve of gauze sand barrier soil had the most significant change,and remained slightly higher than the other two types,mainly acting on 0−10 cm soil layer.In summary,although the response of soil particle composition to different types of sand barriers was different,all types played positive roles in the fixation of sand dunes and the soil formation process of aeolian sandy soil.The gauze sand barrier was relatively effective compared to the other barriers.
作者
丁海龙
蒙仲举
任晓萌
赵飞燕
蔡佳乐
安花
任昱
郭利军
DING Hailong;MENG Zhongju;REN Xiaomeng;ZHAO Feiyan;CAI Jiale;AN Hua;REN Yu;GUO Lijun(College of Desert Control Science and Engineering,Inner Mongolia Agricultural University,Hohhot 010018,China;Inner Mongolia Autonomous Region Institute of Meteorological Sciences,Hohhot 010051,China;Ordos Ecological Environment Vocational College,Inner Mongolia,Ordos 017010,China;Hangjin Banner Forestry and Grassland Business Development Center,Inner Mongolia,Ordos 017400,China)
出处
《内蒙古林业科技》
2025年第3期1-8,共8页
Journal of Inner Mongolia Forestry Science and Technology
基金
内蒙古自治区高校直属科研经费“荒漠生态系统保护与修复创新团队”(BR22-13-03)
鄂尔多斯科技重大专项“光伏电场沙害防治综合技术研究”(2022EEDSKJZDZX020-4)
新时代铸牢中华民族共同体意识下的内蒙古生态治理体系创新与发展(ZLJD24033)。
关键词
光伏沙害防治
低立式沙障
土壤粒度组成
库布其沙漠
photovoltaic sand disaster prevention and control
low vertical sand barrier
soil particle size composition
Hobq Desert
作者简介
丁海龙(1999-),男(回族),宁夏固原人,在读研究生,从事荒漠化防治研究。E−mail:15595448884@163.com;通信作者:蒙仲举(1980-),男,内蒙古呼和浩特人,博士,教授,从事水土保持与荒漠化防治研究。E−mail:mengzhongju@126.com。
