山西太行山区两种地衣——中国石黄衣和黄烛衣的元素含量差异

生态学杂志

山西太行山区两种地衣——中国石黄衣和黄烛衣的元素含量差异

贾晟菊¹,张超¹,罗治定²,张硕²,马会春²,王传华³,刘华杰^1*

（¹河北大学生命科学学院，河北保定 071002；²河北省地矿中心实验室，河北保定 071051；³三峡大学生物与制药学院，湖北宜昌 443002）

出版日期:2018-05-10 发布日期:2018-05-10

Differences in element concentrations between two lichensXanthoria mandschurica andCandelaria fibrosa from Taihang Mountains, Shanxi, China.

JIA Sheng-ju¹, ZHANG Chao¹, LUO Zhi-ding², ZHANG Shuo², MA Hui-chun², WANG Chuan-hua³, LIU Hua-jie^1*

(¹College of Life Sciences, Hebei University, Baoding 071002, Hebei, China; ²Hebei Center Laboratory of Geology and Mineral Resources, Baoding 071051, Hebei, China; ³College of Life Science and Pharmacy, China Three Gorges University, Yichang 443002, Hubei, China)
.

Online:2018-05-10 Published:2018-05-10

摘要/Abstract

摘要： 地衣在大气元素沉降的生物监测研究中应用广泛，但地衣物种之间的元素组成差异会对元素的环境输入评估产生干扰。为摸清元素含量在2种叶状地衣（石生的中国石黄衣Xanthoria mandschurica，XM；树生的黄烛衣Candelaria fibrosa，CAF）之间的差异及其可能的生态学原因，用电感耦合等离子体质谱法（inductively coupled plasma mass spectrometry，ICP-MS）测试了采自山西太行山区长治盆地及其周边共3个地点的地衣样品中的51种元素。结果显示，40种元素的含量在地衣间差异较大，其中36种元素（Al、Ba、Be、Bi、Ca、Ce、Cs、Dy、Er、Eu、Fe、Gd、Ge、Ho、La、Li、Lu、Mn、Na、Nb、Nd、Ni、Pb、Pr、Sc、Si、Sm、Sr、Tb、Th、Ti、Tm、U、V、Y和Yb）在XM中含量较高，可能归因于其受大气干沉降更大且更易受本地岩石地球化学的影响，而CAF受冠层截留作用的影响更大；其中4种元素（K、P、S和Zn）在CAF中含量较高，可能与冠层淋溶作用有关。另外11种元素（As、B、Cd、Co、Cu、Hg、Mg、Rb、Sb、Se、Tl）在2种地衣之间的含量差异较小。大气元素沉降的地衣监测法需考虑地衣物种、基物的地球化学特征和植被的影响。

关键词: 植被类型, 土壤呼吸, 温度敏感性

Abstract: Lichens have been widely used in biomonitoring of atmospheric element deposition. However, assessment of environmental input of elements could be interfered by the differences in element concentrations among lichens. Two foliose lichen species, epilithic Xanthoria mandschurica (XM) and epiphytic Candelaria fibrosa (CAF), were collected from three sites around the Changzhi Basin, Shanxi Province, China. The concentrations of 51 kinds of elements in lichens were measured by inductively coupled plasma mass spectrometry (ICP-MS). The purpose was to compare element concentrations between the two lichens and to address the possible ecological reasons. The results showed that the concentrations of 40 elements differed greatly between XM and CAF, among which 36 elements (Al, Ba, Be, Bi, Ca, Ce, Cs, Dy, Er, Eu, Fe, Gd, Ge, Ho, La, Li, Lu, Mn, Na, Nb, Nd, Ni, Pb, Pr, Sc, Si, Sm, Sr, Tb, Th, Ti, Tm, U, V, Y and Yb) showed higher concentrations in XM than those in CAF, possibly due to the higher dry deposition on XM, higher susceptibility of XM to geochemistry of local rocks, but higher canopy interception on CAF. The concentrations of four elements (K, P, S and Zn) were significantly higher in CAF, probably due to the canopy leaching that carried more nutrients to the epiphytic lichens. Little differences between lichens were found in the concentrations of other 11 elements (As, B, Cd, Co, Cu, Hg, Mg, Rb, Sb, Se, and Tl). Our results indicated that the variations of lichen species, geochemistry of substrate, and vegetation should be considered when we monitor atmospheric deposition using lichens.

Key words: vegetation type, soil respiration, temperature sensitivity.

贾晟菊,张超,罗治定,张硕,马会春,王传华,刘华杰. 山西太行山区两种地衣——中国石黄衣和黄烛衣的元素含量差异[J]. 生态学杂志.

JIA Sheng-ju, ZHANG Chao, LUO Zhi-ding, ZHANG Shuo, MA Hui-chun, WANG Chuan-hua, LIU Hua-jie. Differences in element concentrations between two lichensXanthoria mandschurica andCandelaria fibrosa from Taihang Mountains, Shanxi, China.[J]. cje.

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