摘要
对贵州省清镇市站街镇林歹铝土矿第二矿区的油菜种植区、矿土上部树林区、废石堆积区、矿土堆积恢复区4类环境进行苔藓植物采集,并对具芽胞苔藓种类进行统计分析,结果表明:(1)经鉴定发现苔藓植物10科22属37种,优势种(频度大于10%)为日本大丛藓Molendoa japonica Broth.(18.72%)和银叶真藓Bryum argenteum Hedw.(11.06%);(2)发现8种具芽胞苔藓,占总种数的21.62%,隶属于丛藓科Pottiaceae和真藓科Bryaceae,其中日本大丛藓和芽胞银藓Anomobryum gemmigerum Broth.为常见具芽胞苔藓;(3)油菜种植区中具芽胞苔藓种类最多(6种),但出现频度不高,非该类环境中的优势种,日本大丛藓在4类环境中均有发现;(4)在4类环境中,相对恶劣条件下具芽胞苔藓出现的几率更大;(5)瘤根真藓Bryum bornholmense Winkelm.&Ruthe.和毛状真藓Bryum apiculatum Schwagr.的芽胞长于假根上,其余种类芽胞均见于叶腋处,呈扫帚状,芽胞形态上呈现多样性,有球形、棒形、棒槌形、芽形、纺锤状和火炬状。
Bryophytes were collected from four different habitats in Lindai #2 bauxite mine in Zhanjie town,Qingzhen City,Guizhou Province,and the bryophytes with gemmae were statistically analyzed.The result showed that,（1）120samples were collected from sampling sites,and 10 families,22genera and 37 species were identified.The dominant species（frequency 10%）were Molendoa japonica Broth（18.72%）and Bryum argenteum Hedw.（11.06%）.（2）8kinds of bryophytes had gemmae,which were attached to Pottiaceae and Bryaceae,accounting for 21.62% of the total.Of these,Molendoa japonica Broth and Bryum argenteum Hedw.were common bryophytes with gemmae,found in 44 samples and 16 samples respectively.（3）The largest quantities of bryophytes with gemmae were found in areas where rape was cultivated（6species）;however,frequency was low and there was no dominant species.Additionally,Molendoa japonica Broth.appeared in four different habitats.（4）In summary,bryophytes with gemmae preferred to the relative pollution conditions.（5）The gemmae of Bryum bornholmense Winkelm. Ruthe.and Bryum apiculatum Schwagr.occurred on the rhizoids,while other kinds of gemmae were found on the axil which were in the shape of broom.The forms of gemmae were multiple such as sphere,clavate,wooden stick,bud,spindle and torch.
出处
《中国岩溶》
CAS
CSCD
2014年第4期449-455,共7页
Carsologica Sinica
基金
国家自然科学基金(31360035
31360043)
关键词
喀斯特
铝土矿
苔藓
芽胞
多样性
karst bauxite mine
bryophytes
gemmae
diversity
