本文主要研究内容
作者罗红艳,陈潇潇,曹光球,陈爱玲,魏晓骁,叶义全（2019）在《连栽杉木林地土壤对其无性系幼苗土壤酶活性和酚酸类物质含量的影响》一文中研究指出：探讨杉木在连栽杉木林土壤培养下,其优良无性系根际与非根际土壤酶活性以及根际和根尖酚类物质含量的变化特征及其相互关系,揭示杉木优良无性系对不同连栽代数土壤培养的响应机理,以不同连栽代数杉木人工林土壤为培养基质,栽植杉木无性系幼苗2a后,采用抖落法取根际和非根际土壤测定相关酶活性和根际酚类物质含量,并剪取0～2cm根尖测定酚酸类物质含量。结果表明,在杉木根际土壤和非根际土壤中的脲酶、蔗糖酶、过氧化氢酶及酸性磷酸酶活性总体上随连栽代数增加呈下降的变化趋势,而多酚氧化酶活性呈上升的变化趋势。杉木优良无性系根际土壤中共鉴定出11种酚类物质,其中阿魏酸、没食子酸和咖啡酸相对含量较高,是最主要的酚类物质。没食子酸相对含量随连栽代数增加而增多,阿魏酸含量表现为先降后升,但均高于对照,而咖啡酸则表现为先升后降,其含量均低于对照,且三者在三代林中的含量均高于一代林;杉木根尖中共鉴定出8种酚类物质,其中儿茶素、奎尼酸和山奈酚相对含量较高。儿茶素含量逐代下降,二代林和三代林中其含量均高于对照;山奈酚含量逐代增加,而不同连栽代数中其含量均低于对照;奎尼酸含量表现为先升后降,而不同连栽代数中其含量均高于对照。相关性分析表明,鞣花酸、奎尼酸与酸性磷酸酶呈显著负相关,龙胆酸与酸性磷酸酶呈极显著正相关,芦丁、龙胆酸与多酚氧化酶呈显著负相关,鞣花酸与多酚氧化酶呈显著正相关,没食子酸与脲酶呈显著负相关;槲皮素、芦丁和香草酸与脲酶呈显著正相关,对香豆酸和山奈酚与蔗糖酶呈显著正相关。综上所述,杉木连栽可能会通过改变杉木根尖和根际土壤中酚类物质的积累来影响土壤酶的活性,进而影响杉木对养分的吸收利用,最终导致杉木连栽障碍的发生。
Abstract
tan tao sha mu zai lian zai sha mu lin tu rang pei yang xia ,ji you liang mo xing ji gen ji yu fei gen ji tu rang mei huo xing yi ji gen ji he gen jian fen lei wu zhi han liang de bian hua te zheng ji ji xiang hu guan ji ,jie shi sha mu you liang mo xing ji dui bu tong lian zai dai shu tu rang pei yang de xiang ying ji li ,yi bu tong lian zai dai shu sha mu ren gong lin tu rang wei pei yang ji zhi ,zai zhi sha mu mo xing ji you miao 2ahou ,cai yong dou la fa qu gen ji he fei gen ji tu rang ce ding xiang guan mei huo xing he gen ji fen lei wu zhi han liang ,bing jian qu 0～2cmgen jian ce ding fen suan lei wu zhi han liang 。jie guo biao ming ,zai sha mu gen ji tu rang he fei gen ji tu rang zhong de niao mei 、zhe tang mei 、guo yang hua qing mei ji suan xing lin suan mei huo xing zong ti shang sui lian zai dai shu zeng jia cheng xia jiang de bian hua qu shi ,er duo fen yang hua mei huo xing cheng shang sheng de bian hua qu shi 。sha mu you liang mo xing ji gen ji tu rang zhong gong jian ding chu 11chong fen lei wu zhi ,ji zhong a wei suan 、mei shi zi suan he ga fei suan xiang dui han liang jiao gao ,shi zui zhu yao de fen lei wu zhi 。mei shi zi suan xiang dui han liang sui lian zai dai shu zeng jia er zeng duo ,a wei suan han liang biao xian wei xian jiang hou sheng ,dan jun gao yu dui zhao ,er ga fei suan ze biao xian wei xian sheng hou jiang ,ji han liang jun di yu dui zhao ,ju san zhe zai san dai lin zhong de han liang jun gao yu yi dai lin ;sha mu gen jian zhong gong jian ding chu 8chong fen lei wu zhi ,ji zhong er cha su 、kui ni suan he shan nai fen xiang dui han liang jiao gao 。er cha su han liang zhu dai xia jiang ,er dai lin he san dai lin zhong ji han liang jun gao yu dui zhao ;shan nai fen han liang zhu dai zeng jia ,er bu tong lian zai dai shu zhong ji han liang jun di yu dui zhao ;kui ni suan han liang biao xian wei xian sheng hou jiang ,er bu tong lian zai dai shu zhong ji han liang jun gao yu dui zhao 。xiang guan xing fen xi biao ming ,rou hua suan 、kui ni suan yu suan xing lin suan mei cheng xian zhe fu xiang guan ,long dan suan yu suan xing lin suan mei cheng ji xian zhe zheng xiang guan ,lu ding 、long dan suan yu duo fen yang hua mei cheng xian zhe fu xiang guan ,rou hua suan yu duo fen yang hua mei cheng xian zhe zheng xiang guan ,mei shi zi suan yu niao mei cheng xian zhe fu xiang guan ;hu pi su 、lu ding he xiang cao suan yu niao mei cheng xian zhe zheng xiang guan ,dui xiang dou suan he shan nai fen yu zhe tang mei cheng xian zhe zheng xiang guan 。zeng shang suo shu ,sha mu lian zai ke neng hui tong guo gai bian sha mu gen jian he gen ji tu rang zhong fen lei wu zhi de ji lei lai ying xiang tu rang mei de huo xing ,jin er ying xiang sha mu dui yang fen de xi shou li yong ,zui zhong dao zhi sha mu lian zai zhang ai de fa sheng 。
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论文作者分别是来自西北林学院学报的罗红艳,陈潇潇,曹光球,陈爱玲,魏晓骁,叶义全，发表于刊物西北林学院学报2019年01期论文，是一篇关于杉木论文,连栽论文,酚酸类物质论文,土壤酶活论文,根际土壤论文,西北林学院学报2019年01期论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自西北林学院学报2019年01期论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。