樱花与地被植物麦冬、菲白竹混作对植物生长特性及土壤养分的影响  

Effects of Mixed Cropping of Prunus serrulata with Ground Cover Sasa fortunei and Ophiopogon japonicus on Plant Growth Characteristics and Soil Nutrients

作　　者：吴舒蕾 史文辉 洪承健 季蓉蓉 熊瑞 应叶青[1] WU Shu-lei;SHI Wen-hui;HONG Cheng-jian;JI Rong-rong;XIONG Rui;YING Ye-qing(State Key Laboratory of Subtropical Silviculture,Zhejiang A&F University,Hangzhou 311300,Zhejiang,China)

机构地区：[1]浙江农林大学省部共建亚热带森林培育国家重点实验室,浙江杭州311300

出　　处：《竹子学报》2023年第4期42-50,共9页Journal of Bamboo Research

基　　金：浙江省省院合作林业科技项目(2020SY07)。

摘　　要：【目的】为探究不同种植模式对樱花(Prunus serrulata)、麦冬(Ophiopogon japonicus)、菲白竹(Sasa fortunei)生理生长以及土壤养分特征的影响。【方法】该研究就樱花单作、菲白竹单作、麦冬单作、樱花—菲白竹混作和樱花—麦冬混作5种种植模式进行了大田试验,并于樱花盛花期对3种植物的光合指标、叶片氮含量、土壤养分含量等进行测定。【结果】较各单作处理组相比,樱花与菲白竹混作或樱花与麦冬混作均会导致土壤化学性质的显著变化。与樱花单作相比,樱花与菲白竹混作土壤全氮、碱解氮含量分别显著降低了5.98%、11.64%;与菲白竹单作相比,樱花与菲白竹混作土壤铵态氮、全磷、有效磷含量分别显著增加了8.91%、22.22%、29.57%;樱花—麦冬混作土壤有机质、全氮、碱解氮、铵态氮、全磷、有效磷含量与各自单作相比均显著降低;樱花与菲白竹混作显著提升了土壤养分含量。与不同地被植物混作的樱花表现出不同光合特性,与菲白竹混作的樱花叶片净光合速率、蒸腾速率、气孔导度高于樱花单作,而与麦冬混作的樱花总叶绿素含量显著降低了25.85%,胞间二氧化碳浓度显著增加了11.83%。与樱花混作后,2种地被植物光合作用均产生了积极影响,菲白竹和麦冬均显著增加了叶片氮养分的吸收和叶绿素含量。【结论】樱花与菲白竹混作可有效促进2种植物叶片氮含量、净光合速率的提高,并有效改善土壤养分肥力,可作为具有较好生态效益的栽培模式加以推广应用。【Objective】In order to explore the effects of different planting patterns on the physiological characteristics of Prunus serrulata,Ophiopogon japonicus and Sasa fortunei and the soil nutrsents.【Method】In this study,field experiments were carried out with five planting patterns:P.serrulata monoculture,S.fortunei monoculture,O.japonicus monoculture,mixed planting of P.serrulata and S.fortunei,mixed planting of P.serrulata and O.japonicus.The photosynthetic index,leaf nitrogen content and soil nutrient content of three plants were measured at the blooming stage of P.serrulata.【Result】The results showed that,compared with the single cropping groups,the mixed cropping of P.serrulata and S.fortunei or P.serrulata and O.japonicus could lead to significant changes in soil chemical properties.The contents of total nitrogen and alkali-hydrolyzed nitrogen significantly decreased by 5.98%and 11.64%in the soil of the mixed cropping of P.serrulata and S.fortunei compared with the single cropping of P.serrulata,while the contents of ammonium nitrogen,total phosphorus and available phosphorus significantly increased by 8.91%,22.22%and 29.57%in the soil of the mixed cropping of P.serrulata and S.fortunei compared with the single cropping of S.fortunei.P.serrulata and O.japonicus mixed planting of organic matter,total nitrogen,alkali solution nitrogen,ammonium nitrogen,total phosphorus,effective phosphorus content compared with their own monoculture were significantly lower,while the P.serrulata and S.fortunei mixed cropping significantly increased the soil nutrient content.P.serrulata mixed with different ground cover plants showed different photosynthetic characteristics.The cherry blossoms mixed with different ground cover plants showed different photosynthetic characteristics.The net photosynthetic rate,transpiration rate and stomatal conductance of the leaves of P.serrulata mixed with S.fortunei were higher than those of P.serrulata monoculture,while the total chlorophyll content of P.serrulata mixed with O.japoni

关 键 词：混作 光合特性 土壤化学性质 

分 类 号：S688.4[农业科学—观赏园艺] S685.99[农业科学—园艺学] S158