Cd污染土壤添加不同土壤调理剂对雅榕幼苗影响研究  

Effects of Adding Different Soil Conditioners on the Physiological Response in Ficus concinna under Cd Stress

作　　者：包全发 张晓勉[2] 邱智敏 岳春雷[2] 张桂华 李贺鹏[2] 房瑶瑶[2] BAO Quanfa;ZHANG Xiaomian;QIU Zhimin;YUE Chunlei;ZHANG Guihua;LI Hepeng;FANG Yaoyao(College of Forestry and Biotechnology,Zhejiang A&F University,Hangzhou 311300,Zhejiang,China;Zhejiang Academy of Forestry,Hangzhou 310023,Zhejiang,China;Taizhou Forestry Technology Popularization Station,Taizhou Zhejiang 318000,Zhejiang,China)

机构地区：[1]浙江农林大学林业与生物技术学院,浙江杭州311300 [2]浙江省林业科学研究院,浙江杭州310023 [3]台州市林业技术推广总站,浙江台州318000

出　　处：《浙江林业科技》2025年第1期41-47,共7页Journal of Zhejiang Forestry Science and Technology

基　　金：浙江省省属科研院所专项(计划编号2024F1065-1);浙江省林业局项目(2022SY06)。

摘　　要：以雅榕Ficus concinna 1年生幼苗为对象,采用Cd污染土盆栽试验,分析添加生物炭、泥炭2种土壤调理剂对雅榕苗高、地径生长量、Cd富集转移能力、叶绿素、膜质过氧化和渗透调节等的影响,研究Cd胁迫下雅榕的耐受机理及不同土壤调理剂在促进雅榕生长、增强净化能力等方面的作用。结果表明,在中度以上Cd(2.52 mg·kg^(-1))胁迫条件下,雅榕依靠渗透调节物质对膜质过氧化进行修复,提高叶绿素含量、维持正常光合作用,表现出对Cd胁迫较强的适应能力;添加质量比为5%的生物炭或泥炭均可有效减轻Cd胁迫对雅榕的危害,但添加5%的生物炭在促进雅榕生长、缓解Cd污染对雅榕的损伤、提升雅榕光合作用、增强雅榕净化Cd污染土壤能力等方面综合效果优于添加5%的泥炭。Using 1-year-old seedlings of Ficus concenna(Miq.)Miq as the experimental object,a pot experiment was conducted in soil contaminated with heavy metal Cd to analyze the effects of adding two soil conditioners,biochar and peat,on F.microcarpa growth,Cd enrichment and transfer ability,chlorophyll,membrane peroxidation,and osmotic regulation.The tolerance mechanism of F.microcarpa under Cd stress and the effects of different soil conditioners on promoting Ficus growth and enhancing purification ability were studied.The results showed that under moderate or above Cd(2.52 mg·kg^(-1))stress conditions,F.microcarpa relied on osmotic regulatory substances to repair membrane peroxidation,increase chlorophyll content,and maintain normal photosynthesis,demonstrating strong adaptability to Cd stress;Adding 5%biochar or peat can effectively reduce the harm of Cd stress to F.microcarpa.Adding 5%biochar has better comprehensive effects than adding 5%peat in promoting F.microcarpa growth,alleviating the damage of Cd pollution to F.microcarpa,enhancing its photosynthesis,and enhancing its ability to purify Cd contaminated soil.

关 键 词：雅榕 生物炭 泥炭 CD污染土壤 胁迫 

分 类 号：S714.6[农业科学—林学]