银杏林下植物配置对林分水土保持效果的影响  

Effects of underplanting on soil and water preservation of Ginkgo biloba forest

作　　者：黎舒[1] 兰思仁[1] 郑巧巧 王哲 陈世品[1] 曹光球[1] LI Shu;LAN Siren;ZHENG Qiaoqiao;WANG Zhe;CHEN Shipin;CAO Guangqiu(College of Forestry,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China)

机构地区：[1]福建农林大学林学院,福建福州350002

出　　处：《福建农林大学学报（自然科学版）》2018年第2期181-187,共7页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：国家"十二五"科技支撑计划项目(2014BAD15B01)

摘　　要：以银杏林下套种植物作为对照,分析了银杏林下种植台湾黄花菜、桃金娘对土壤养分含量、泥沙流失量及径流流失量的影响,结果表明:种植台湾黄花菜和桃金娘后,0~40 cm土层土壤速效养分含量显著提高,水解性氮、速效磷、速效钾含量分别提高了66.40%、42.33%、38.30%,含水率提高了57.14%,全碳、全氮含量分别提高了38.53%、64.63%,泥沙流失量和径流流失量分别下降了22.30%、26.27%.表明种植台湾黄花菜和桃金娘起到了保水保肥的作用.With the single planting of Ginkgo biloba as control,the effects of the underplanting of Hemerocallis citrina,Rhodomyrtus tomentosa on soil nutrient content,soil erosion and runoff erosion were investigated. The results showed that with the underplanting of H.citrina and R.tomentosa,available nutrients in the soil layer of 0-40 cm increased significantly,in which hydrolysable nitrogen,available phosphorus,available potassium increased by 66.40%,42.33%,38.30%; soil water content increased by 57.14%; total carbon and total nitrogen contents increased by 38.53% and 64.63%; the amount of sediment losses and the runoff volume decreased by 22.30% and 26.27%,respectively. It was suggested that the underplanting of H.citrina and R.tomentosa played a role in the preservation of water and fertilizer.

关 键 词：林下 水土保持 土壤养分 流失量 

分 类 号：S157[农业科学—土壤学]