酸性高砷煤矿区苔藓植物的适生性及其砷含量特征  

Characteristics of arsenic content and adaptation of bryophytes in acid high-arsenic coal mine.

作　　者：官庆松 张瑞雪[1,2] 吴攀[1,2] 张萌[1] 

机构地区：[1]贵州大学资源与环境工程学院,贵阳550003 [2]贵州大学矿山环境治理工程技术中心,贵阳550003

出　　处：《生态学杂志》2013年第12期3325-3329,共5页Chinese Journal of Ecology

基　　金：贵州省科学技术基金项目(黔科合J字[2012]2149号);贵州省科技创新人才团队建设项目(黔科合人才团队[2012]4005号);贵州大学研究生创新基金项目(研理工2013054)资助

摘　　要：对贵州省兴仁县高砷煤矿区猫石头水库上游（溪流区和废渣区）苔藓植物进行调查，共发现苔藓植物5科6属6种，优势种属表现较明显，丛藓科的花状湿地藓、金发藓科的金发藓原变种分别是溪流区和废渣区的优势种群。由于受矿区酸性矿山废水的污染，苔藓生长基质普遍呈现酸性、高电导率的特征，致使本研究区苔藓植物与其他研究区种类差异较大。研究区内苔藓植物As含量为2．65～282．70mg·kg^-1，平均值为79．28mg·b^-1。溪流区优势种群花状湿地藓各部分As含量特征显示，土壤基质是花状湿地藓体内As的来源之一。An investigation was conducted on the bryophyte communities from stream and waste solid subareas of the upper stream of Cat Stone Reservoir, a high-arsenic coal area in Xingren County, Guizhou Province. It was found that there were 6 species of 6 genera in 5 families in the bryophyte communities, and the dominant species presented more apparent features. Hyophila rosea of Pottiaceae and Polytrichurn commune of Polytrichaceae were the dominant species in the stream and waste solid subareas, respectively. Due to the contamination of the acid mine drain- age, the electric conductivity and acidity were high in the growth matrix of the bryophyte, which made the species of bryophytes in the study area largely different from those found in other areas. The arsenic （As） concentration ranged from 2.65 to 282.70 mg ·kg^-1 across different bryophyte species, with an average concentration of 79.28 mg·kg^-1. The distribution of As in different parts of the dominant species Hyophila rosea showed that soil matrix was one of the sources of As in the Hyophila rosea.

关 键 词：苔藓植物 高砷煤矿 酸性矿山废水 生长基质 花状湿地藓 

分 类 号：Q948[生物学—植物学]