山东林业科技2023年第5期总268期文章编号：1002-2724(2023)05-0075-05SHANDONGFORESTRYSCIENCEANDTECHNOLOGY2023.No.5灌木林地改造黄连木+连翘混交林模式效益分析刘洪勇,徐庆,苏庆,孔艳,屈峰,赵冬,孔令雷*（曲阜市自然资源和规划局，山东曲阜273100)摘要：青石山香椿低产林改造黄连木+连翘混交林后，与2020年基准年相比，试验林减少地表径流、发挥控制侵蚀的作用明显，平均径流量由899.93m/hm²·a)减少到545.65m/(hm²?a)，径流量减少了39.37%；平均土壤侵蚀模数由1.87t/(hm².a)减少到1.40t/(hm·a)，土壤侵蚀量减少了25.13%，各造林模式土壤侵蚀程度由强到弱为S1>S2>S3>S4。栽植2年连翘平均产量达到28.47kg/hm²，香椿产量由150kg/hm²增加到225kg/hm²,连翘、香椿平均增加产值8513元/hm²，各造林模式连翘产值由高到低为S3>S4>S1>S2。林地平均植被盖度由35%提高到85%，植被盖度提高了50%,试验林直接经济效益和生态系统服务功能价值达到57167元/(hm²·a)，系统创建了低产低效灌木林地改造黄连木+连翘混交林树种空间结构优化配置技术。关键词：灌木林地；黄连木、连翘；混交林；模式；效益分析中图分类号：S714.6BenefitAnalysisofTransformingPistaciachinensis+TorsythiasuspensaMixedForestModelinShrubLandAbstract:Comparedwiththebaseyearof2020,theexperimentalforestplayedanobviousroleinreducingsurfacerunoffandcontrollingerosion,withanaveragerunoffof899.93m/hm?areducedto545.65m/Therunoffdecreasedby39.37%;Theaveragesoilerosionmodulusdecreasedfrom1.87t/hm².ato1.40t/hm?:a,andtheamountofsoilerosiondecreasedby25.13%.Thedegreeofsoilerosionineachafforestationmodefromstrongtoweakwassl>s2>s3>s4.After2yearsofplanting,theaverageyieldofForsythiasuspensareached28.47kg/hm²,TheaverageyieldofToonasinensisincreasedby8513yuan/hm².TheoutputvalueofForsythiasuspensaineachafforestationmodefromhightolowwasS3>S4>S1>S2.Theaveragevegetationcoverageoftheforestlandincreasedfrom35%to85%,andthevegetationcoverageincreasedby50%.Thedirecteconomicbenefitandecosystemservicevalueoftheexperimentalforestreached57167yuan/hm?·a.thesystemestablishedthespatialstructureoptimizationallocationtechnologyofPistaciachinensis+Forsythiasuspensamixedforesttransformedfromlowyieldandlowefficiencyshr...
