西北林学院学报2024，Vol.39Issue(4)：178-188,11.DOI:10.3969/j.issn.1001-7461.2024.04.22
4种园林绿化植物凋落物混合对其持水特性的影响
Effects of Litter Mixing of Four Common Landscaping Plants on Their Water Holding Properties
摘要
Abstract
Properly keeping litter layer can significantly improve the hydrological effect of urban green space.However,the effects of litter mixing from different species on their hydrological characteristics remain unclear.In this study,leaf litters from Syringa oblata(So),Salix babylonica(Sb),Prunus serru-lata var.lannesiana(Ps)and Acer pictum subsp.mono(Ap),as well as 5 types of mixtures of these lit-ters were selected as the research objects.Based on the indoor soaking method,the non-additive effects of litter mixing on their water absorption or loss related characteristics were detected.The results showed that 1)So and Ps litter mixing with the mass ratios of 7∶3 and 5∶5 significantly reduced their maximum water holding capacity,while the same mixing type with the mass ratio of 3∶7 significantly increased the proportion of water holding capacity in gaps among leaves(WHG)relative to their predicted values;Ap and Sb mixing with mass ratios of 5∶5 and 4∶6 significantly reduced their maximum water holding capac-ity,while the same mixing type with mass ratios 4∶6 and,5∶5 and 3∶7 also decreased their WHG and maximum water absorption rate;Ap and Ps litter mixing with a mass ratio of 3∶7 significantly decreased their WHG,while So and Ap litter mixing with a mass ratio of 3∶7 significantly increased their maximum water absorption rate;So and Sb litter mixing with mass ratios of 7∶3 and 4∶6,and 3∶7 significantly in-creased their WGH and maximum water absorption rate(P＜0.05).2)So and Ps litter mixing with mass ratios of 7∶3 and 5∶5,Ap and Sb litter mixing with mass ratios of 6∶4-3∶7,Ap and Ps litter mixing with mass ratios of 7∶3-4∶6,and So and Ap litter mixing with mass ratios of 4∶6-3∶7 significantly decreased their maximum water loss rate;while the mixing of So and Sb litter with all mass ratios except for the ratio of 6∶4 caused opposite effects;So and Ps litter mixing with mass ratios of 6∶4 and 3∶7,So and Ap or So and Sb litter mixing with any mass ratio significantly increased their maximum water loss rate(P＜0.05).关键词
凋落物/混合比例/持水性能/失水特征/城市绿地Key words
litter/mixing proportion/water-holding capacity/water loss/urban green space分类
农业科技引用本文复制引用
张晓曦,胡嘉伟,刘凯旋,李世强,陈灵素,董雨欣,王子泉,陈锦强..4种园林绿化植物凋落物混合对其持水特性的影响[J].西北林学院学报,2024,39(4):178-188,11.基金项目
国家自然科学基金项目(31800370) （31800370）
陕西省自然科学基础研究计划项目(2023-JC-YB-173) （2023-JC-YB-173）
国家大学生创新创业训练计划项目(202210719045,202310719025) （202210719045,202310719025）
延安大学研究生教育创新计划项目(YCX2023081). （YCX2023081）
