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当前位置: 首页 > 文章 > 接种外生菌根菌对模拟酸雨胁迫下马尾松营养元素的影响 林业科学 2014,50 (1) 159-166
Position: Home > Articles > Effects of Ectomycorrhizal Fungi on Nutrient Elements of Pinus massoniana Seedlings under Simulated Acid Rain Scientia Silvae Sinicae 2014,50 (1) 159-166

接种外生菌根菌对模拟酸雨胁迫下马尾松营养元素的影响

作  者：
陈展;尚鹤
单  位：
中国林业科学研究院森林生态环境与保护研究所国家林业局森林生态环境重点实验室
关键词：
外生菌根;酸雨;马尾松;营养元素
摘  要：
20世纪80年代中期以来,工业生产排放的硫化物和氮氧化物越来越多,在大气中形成酸雨(Tatiana et al.,2002),对森林、水体和农田等生态系统造成相当大的危害。酸雨使土壤的pH值降低、营养阳离子析出、营养阴离子增加、营养物循环和供给发生变化,持续酸雨淋溶导致植物可利用营养元素减少,这些对植物的营养代谢和其他生理代谢产生影响(冯宗炜,1993;1999;Hagedorn et al.,2001;樊后保等,2002;田大伦等,2007)。根据中华人民共和国环境保护部2011年中国
译  名：
Effects of Ectomycorrhizal Fungi on Nutrient Elements of Pinus massoniana Seedlings under Simulated Acid Rain
作  者：
Chen Zhan;Shang He;Key Laboratory of Forest Ecology and Environment of State Forestry Administration Institute of Forest Ecology,Environment and Protection,CAF;
关键词：
ectomycorrhizae;;simulated acid rain;;Pinus massoniana;;nutrient element
摘  要：
To evaluate the effects of ectomycorrhizal colonization on nutrient elements of Masson pine(Pinus massoniana)seedlings grown in acidified soils,we grew Masson pine seedlings with Pisolithus tinctorius(ECM)for 210 days in acidified forest soil collected from Chongqing,Southwest China.Three acid levels were set,that is,pH3.5,pH4.5 and pH5.6(served as the control),and two ectomycorrhizal treatments(inoculated,non-inoculated)were conducted.The results showed that:1)Compared with CK treatment,both acidic treatments decreased soil pH.The pH4.5 treatment had no effect on exchangeable Ca and cation exchangeable capacity(CEC),but increased the content of exchangeable Mg.The pH3.5 treatment significantly reduced exchangeable Ca,Mg and CEC.Inoculation with ECM increased soil pH,exchangeable Ca,Mg and CEC.2)The acid treatments had no effect on soil organic matter and available K,however they significantly reduced the available P and N content in the soil.Inoculation with ECM under pH3.5 treatment increased soil available P and K content than the non-inocultaion treatment.3)Acid rain treatments increased N content of needles,and decreased P,K,Ca,and Mg content of needles.Inoculation with ECM reduced N content of needles,and increased P,K,Ca,and Mg content of needles.4)Acid rain treatments decreased P,K,and Mg content of roots,however inoculation with ECM increased these elements contents,and reduced Al content of roots.These results indicated that inoculation with ECM could effectively alleviate acid rain stress,increase soil buffer capacity to acid rain,decrease Al poison,and increase nutrient absorption capacity and nutrient balance of plants.

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