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九寨侗族的宗教信仰 被引量:2
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作者 陆景川 《黔东南民族师范高等专科学校学报》 2005年第1期77-78,共2页
九寨是座落贵州省锦屏县境内重要的侗族社区 ,其民俗文化具有原生态特质 ,其中宗教信仰十分典型 ,其原始性反映为对大自然、动植物、鬼神与祖先。
关键词 九寨地区 侗族 宗教信仰 民俗文化 自然宗教 动植物崇拜 贵州
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Anthropogenic Effect on Deposition Dynamics of Lake Sediments Based on ^(137)Cs and ^(210)Pb_(ex) Techniques in Jiuzhaigou National Nature Reserve,China 被引量:3
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作者 LIANG Kangkang HU Xinxin +2 位作者 LI Shiguang HUANG Chengmin TANG Ya 《Chinese Geographical Science》 SCIE CSCD 2014年第2期180-190,共11页
Radionuclide dating techniques characterized by137Cs and210Pbex have recently been applied in the study of lake sediments around the world.In this study,a chronological series of sediment cores was established based o... Radionuclide dating techniques characterized by137Cs and210Pbex have recently been applied in the study of lake sediments around the world.In this study,a chronological series of sediment cores was established based on137Cs and210Pbex analyses along with the evaluation of sediment properties,such as particle size distribution,total organic carbon(TOC),carbonate content,and acid-insoluble residue,to study sediment accumulation rates,sediment sources,and responses to human activities in the Jiuzhaigou National Nature Reserve in southwestern China.In terms of the particle size distribution of sediments,silt content was the highest,and clay and sand contents were relatively low.The sediments displayed high TOC contents because of the significant amounts of vegetation grown in the lakes.The carbonate content was also high due to the overall geological background of carbonates in Jiuzhaigou.Carbonate content tended to decline from top to bottom in the sediment cores,whereas the acid-insoluble residue tended to increase.These results suggested that the depth variation of the environmental parameters of the sediments in two lakes in Jiuzhaigou would correspond to each other.The results indicated that the sediment rate of Jiuzhaigou was generally high with strong siltation,indicating that serious soil loss was induced by intensive human activities in the basin over the past decades.The increases in the mass accumulation rate,contents of acid-insoluble residue,and mean particle size during the periods of 1840–1900s,late 1930s–early 1950s,1966–1978,and2003–2006 revealed the occurrence of severe soil and water loss as a result of extensive agricultural expansion,large-scale deforestation,and road construction in Jiuzhaigou.The deposition rate and the properties of lacustrine sediments could reflect the significant impact of human activities on lake sedimentation during Jiuzhaigou′s history. 展开更多
关键词 lake sediment 137Cs 210Pbex deposition rate particle size distribution acid-insoluble residue Jiuzhaigou National Nature Reserve
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