基于LY-1离子型抗蚀剂的半干旱区边坡土壤保水性能优化研究  

The optimization of slope soil water retention in semi-arid area based on LY-1 ionic soil anti-erosion agent

作　　者：张利忠[1] 赵英 林海军[2,3] 魏琳琳 郭海桥[1] 王常建 王新民[2,3] ZHANG Li-zhong;ZHAO Ying;LIN Hai-jun;WEI Lin-lin;GUO Hai-qiao;WANG Chang-jian;WANG Xin-min(God Warburg Hiller Corporation,Hulun Buir 021000,China;State Environmental Protection Engineering Center for Ecological Restoration on Destroyed Surface,Beijing 100192,China;Louis Ecological Engineering Co.,Ltd.,Beijing 100192,China).)

机构地区：[1]神华宝日希勒能源有限公司,内蒙古呼伦贝尔021000 [2]国家环境保护创面生态修复工程技术中心,北京100192 [3]路域生态工程有限公司,北京100192

出　　处：《环境生态学》2019年第3期74-78,共5页Environmental Ecology

基　　金：国家重点研发计划资助项目(2016YFC0501109)

摘　　要：矿山开采导致植被破坏和水土流失等问题,其中,排土场边坡受雨水冲蚀导致水土流失最为严重。本试验以LY-1离子型土壤抗蚀剂为材料,在其基础之上添加植物纤维,以未添加抗蚀剂和植物纤维的土壤为对照,设4种植物纤维用量处理,利用人工降雨冲刷模拟边坡的方式研究分析土壤保水性能、养分含量及植被长势情况等。结果表明:(1)边坡土壤含水量随植物纤维量增加而增加,植物纤维量为3%时,土壤含水量达到最大值,约为27.28%;(2)对照坡面土壤收缩量显著高于其他坡面,且土壤收缩量随着植物纤维增加而降低;(3)抗蚀材料和植物纤维的添加均不会影响土壤容重和氮、磷、钾总体和速效养分。说明LY-1离子型土壤抗蚀剂和植物纤维用量分别为2‰和3%时,土壤保水效果最优,植被覆盖率高且长势良好。Mining causes problems such as vegetation damage and soil erosion.Among which the slope of the dump is most seriously soil erosion by rainwater.In this study,LY-1 ionic soil anti-erosion agent and different content of plant fiber were chosen to study slope soil water retention.Simultaneously,soil without anti-erosion agent and plant fiber was used as contrast.Taking a method of scouring simulation slope by artificial rainfall to analyze the soil water retention,nutrient content and vegetation growth.The obtained results were summarized as follows:(1)The slope soil water retention increased with the increase of plant fiber content.When the plant fiber content was 3%,the maximum value of soil water retention is 27.28%.(2)Soil shrinkage content without anti-erosion agent or plant fiber was significantly higher than that on the other slopes,and with the increase of plant fiber,soil shrinkage content will be decreasing.(3)The addition of Anti-erosion material and plant fiber will not affect the volume weight of soil and the total and available nutrients of nitrogen,phosphorus and potassium.The results show that the content of LY-1 ionic soil anti-erosion agent and plant fiber are 2‰and 3%,soil water retention,vegetation coverage and growth are best.

关 键 词：LY-1离子型土壤抗蚀剂 边坡 保水 栗钙土 

分 类 号：S157[农业科学—土壤学]