大唐西市土遗址苔藓物种鉴定及其病害成因分析
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摘要
通过光学显微镜与扫描电子显微镜(SEM)相结合的分析方法对大唐西市土遗址表面滋生的苔藓进行分离鉴定,确定该苔藓为四川湿地藓Hyophila setschwanica(Broth.).在此基础上,采用X射线荧光光谱(XRF)、X射线衍射(XRD)等分析手段对遗址内5处土样进行了分析.结果表明该遗址土壤中钙含量远高于一般表土平均量,且土壤含水量最高为23%,p H呈弱碱性.该种土壤环境为四川湿地藓的繁殖提供了有利的条件,导致四川湿地藓病害的广泛滋生,充分解释了四川湿地藓生长旺盛的根本原因,为后期有效治理该病害提供了一定理论依据.
Optical microscopy and scanning electron microscopy( SEM) were used to identify bryophyte that breeds on the surface of earthen archaeological site in Tang west market,and it was identified as Hyophila setschwanica( Broth.). On this basis,X-ray diffraction( XRD) and X-ray fluorescence( XRF) were used to analyze five soil samples within the site,the results showed that the soil of the site is calcareous soil,and the soil moisture content was up to 23%,and p H was weakly alkaline. The soil environment provides a favorable condition for the reproduction of Hyophila setschwanica,leading to its widespread occurrence,which fully explained the root causes of the vigorous growth of Hyophila setschwanica,and thus provides some theoretical basis for the late effective treatment of the disease.
Optical microscopy and scanning electron microscopy( SEM) were used to identify bryophyte that breeds on the surface of earthen archaeological site in Tang west market,and it was identified as Hyophila setschwanica( Broth.). On this basis,X-ray diffraction( XRD) and X-ray fluorescence( XRF) were used to analyze five soil samples within the site,the results showed that the soil of the site is calcareous soil,and the soil moisture content was up to 23%,and p H was weakly alkaline. The soil environment provides a favorable condition for the reproduction of Hyophila setschwanica,leading to its widespread occurrence,which fully explained the root causes of the vigorous growth of Hyophila setschwanica,and thus provides some theoretical basis for the late effective treatment of the disease.
引文
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[2]李剑平.扫描电子显微镜对样品的要求及样品的制备[J].分析测试技术与仪器,2007,13:74-76.
[3]南京水利科学研究院.土工实验规程[S].北京:中国水利水电出版社,1999:28-29,473-474.
[4]中华人民共和国水利部.GB/T50123-1999土工实验方法标准[S].北京:中国计划出版社,1999.
[5]李小平,黄春长.XRF光谱法研究城市工业区的土壤环境污染[J].土壤,2007,39:567.
[6]金普军,秦颍,胡雅丽,等.九连墩墓地1、2号墓出土青铜器上锈蚀产物分析[J].江汉考古,2009,110:113.
[7]李奕.中国数字植物标本馆[EB/OL].http://www.cvh.org.cn/moss/taixianzhi/list.asp?pgno=4&.
[8]Zander R H.Genera of the Pottlaeeae:mosses of harsh environments[J].Bulletin of the Buffalo Society of Natural Sciences,1993,32:200-378.
[9]黎兴江,丛藓科,吴征镒.云南植物志(第十八卷)[M].北京:科学出版社,2002:224-320.
[10]陈邦杰,万宗玲,黎兴江,等.中国藓类植物属志(上册)[M].北京:科学出版社,1963:173-227.
[11]辩江,丛藓科,高谦.中国苔藓志(第二卷)[M].北京:科学出版社,1996:113-260.
[12]刘永英,王育水,赵建成,等.河南省湿地藓属的初步研究[J].西北植物学报,2007,27:1869-1873.
[13]杨利玲,张桂兰.土壤中的钙质化学与植物的钙营养[J].甘肃农业,2006(10):272.