摘要
[目的]优选水文效应较好的城市绿地生态覆盖物,为城市裸露绿地的覆盖管理提供理论指导。[方法]以4种有机生态覆盖物(秸秆、菇渣、锯木屑、松树皮)和4种无机生态覆盖物(陶粒、火山石、珍珠岩、麦饭石)为研究对象,采取室内浸泡法研究有机无机生态覆盖物应用于城市绿地的水文效应,并选出水文效应较好的生态覆盖物。[结果](1)有机、无机生态覆盖物的持水量、吸水速率变化趋势基本一致,其持水量与吸水速率呈显著对数函数关系,与浸泡时间呈显著幂函数关系。(2)有机生态覆盖物的最大持水能力、有效拦蓄能力都普遍高于无机生态覆盖物,在4种有机生态覆盖物中,锯木屑、秸秆的最大持水能力、有效拦蓄能力较好,菇渣次之,松树皮最差。在4种无机生态覆盖物中,火山岩、珍珠岩和陶粒的最大持水能力、有效拦蓄能力都较好,麦饭石最差。[结论]在实际的城市绿地覆盖应用中,在充分考虑当地各种自然环境因子的条件下,可以优先选取水文效应较好的有机生态覆盖物(锯木屑、秸秆)以及无机生态覆盖物(火山石、珍珠岩、陶粒)。
[Objective] This study aimed to optimise organic and inorganic mulches suitable for urban bare soil coverage and provide theoretical guidance for urban bare soil management.[Methods] Four types of organic ecological mulches(straw,mushroom residue,sawdust,and pine bark) and four types of inorganic ecological mulches(ceramsite,volcanic stone,perlite,and maifan stone) were used as research objects,and the indoor immersion method was used to compare the water retention effect of the organic and inorganic ecological mulches applied to urban bare soil.Several ecological mulches with good water retention effects were selected.[Results](1) The changing trends of the water-holding capacity and water absorption rate of the organic and inorganic ecological mulches were basically consistent.The water-holding capacity,water absorption rate,and soaking time of the two types of ecological mulches had significant logarithmic and power function relationships,respectively.(2) The maximum water-holding capacity and effective storage capacity of the organic ecological mulches were generally higher than those of the inorganic ecological mulches.Among the four types of organic ecological mulches,sawdust and straw had the best(i.e.,highest) water-holding capacity and effective storage capacity,followed by mushroom residue and pine bark.Among the four types of inorganic ecological mulches,volcanic rock,perlite,and ceramsite had the best water-holding capacity and effective retaining capacity,and maifan stone had the worst.[Conclusion] In the actual application of urban bare soil coverage,organic ecological mulches(sawdust and straw) and inorganic ecological mulches(volcanic stone,perlite,and ceramsite) with good water retention effects can be selected preferentially when various local natural environmental factors are fully considered.
作者
谭江锋
路露
曲炳鹏
周伟
王鑫宇
江颖
张新英
宋书巧
任姝蕾
Tan Jiangfeng;Lu Lu;Qu Bingpeng;Zhou Wei;Wang Xinyu;Jiang Ying;Zhang Xinying;Song Shuqiao;Ren Shulei(School of Environmental and Life Sciences,Nanning Normal University,Nanning,Guangxi 530001,China;Guangxi Forest Inventory&Planning Institute,Nanning,Guangxi 530011,China;College of Forestry and Grass,Nanjing Forestry University,Nanjing,Jiangsu 210037,China)
出处
《水土保持通报》
CSCD
北大核心
2024年第4期12-19,共8页
Bulletin of Soil and Water Conservation
基金
广西高校中青年教师科研基础能力提升项目“西南喀斯特地区边坡植物群落演替特征及群落构建研究”(2023KY0402)
百色市科学研究与技术开发计划项目(20233646)
全国生态修复青年科技创新大赛开放基金项目(20220203)
南宁师范大学博士科研基金项目(602021239392)
南宁师范大学大学生创新创业训练计划项目(602026502)。
关键词
生态覆盖物
城市绿地
水文效应
ecological mulch
urban bare soil
water retention effect
