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Analysis of Batik Value Chain in Ethnic Minority Areas--A Case Study of Danzhai County in Guizhou Province
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作者 ZHANG Qing-jing REN Xiao-dong LIU Yan-li 《Asian Agricultural Research》 2012年第4期60-63,79,共5页
Based on value chain analysis method,we surveyed and interviewed interest groups of batik industry in Danzhai County.From raw material production,product processing,marketing,organization and management,we discussed t... Based on value chain analysis method,we surveyed and interviewed interest groups of batik industry in Danzhai County.From raw material production,product processing,marketing,organization and management,we discussed the supply chain of batik products in ethnic minority areas,and analyzed favorable factors of batik industry development and obstacles to interest groups developing batik industry.Finally,we put forward corresponding policy suggestions,including strengthening farmers' ability in batik production section,enhancing capability construction of batik cooperatives and associations,increasing cultural value added of batik products,bolster policy and financial support of government departments,and promoting establishment of cooperative mechanism for handicrafts. 展开更多
关键词 BATIK Value chain Policy suggestions Danzhai county of guizhou Province
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Super-Large Manganese Deposits Have Been Discovered at Pujue and Taoziping,Songtao County in Guizhou Province
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作者 HAO Ziguo FEI Hongcai +1 位作者 HAO Qingqing LIU Lian 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2017年第1期343-344,共2页
In 2016,the Geological Brigade No.103 of Guizhou Geology and Mineral Exploration and Development Bureau discovered two super-large manganese deposits at Pujue and Taoziping,in Songtao County,Guizhou Province(Fig.1).... In 2016,the Geological Brigade No.103 of Guizhou Geology and Mineral Exploration and Development Bureau discovered two super-large manganese deposits at Pujue and Taoziping,in Songtao County,Guizhou Province(Fig.1).The Pujue manganese deposit has191.59 million tons of proven(332+333)class ore reserves,including 35.54 million tons of 332 class and 展开更多
关键词 Super-Large Manganese Deposits Have Been Discovered at Pujue and Taoziping Songtao county in guizhou Province
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Analysis of Landscape Changes in the Karst Areas of Puding County in Guizhou Province
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作者 殷洁 李秀珍 +2 位作者 胡远满 张盼盼 肖笃宁 《Journal of Landscape Research》 2009年第7期5-11,共7页
Based on GIS,RS and the landscape analysis software,landscape changes in the middle and lower reaches of Houzhai River in Puding County of Guizhou Province from 1973 to 2004 were analyzed.The results indicated that pa... Based on GIS,RS and the landscape analysis software,landscape changes in the middle and lower reaches of Houzhai River in Puding County of Guizhou Province from 1973 to 2004 were analyzed.The results indicated that paddy fields and dry fields held a dominant status.In the change of landscape types,forest land reduced continually,dry fields changed complicatedly,and the mutual transformation among grass land,shrub land and forest land was obvious.The area of bare rock increased remarkably in the slope range between 10° and 35°.Artificially 'returning cultivation land into forests and pastures','reclamation by damaging forests and pastures',and natural ecosystem converse succession existed at the same time.Therefore,the whole landscape was in an unstable state. 展开更多
关键词 LANDSCAPE change KARST Puding county in guizhou PROVINCE
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Jurassic granitoid dike in Luodian, Guizhou Province: discovery and geological significance 被引量:2
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作者 Mingjin Zhu Aiguo Nie +2 位作者 Yazhou Tian Xinsong Wang Jun Sun 《Acta Geochimica》 EI CAS CSCD 2019年第1期159-172,共14页
In this paper, the Jurassic granitoid dike that intrudes into Permian diabase was reported in Luokun,Luodian County, south Guizhou. Zircon LA-ICP-MS U–Pb dating of the granitoid dike yielded an age of 164.3 ± 2.... In this paper, the Jurassic granitoid dike that intrudes into Permian diabase was reported in Luokun,Luodian County, south Guizhou. Zircon LA-ICP-MS U–Pb dating of the granitoid dike yielded an age of 164.3 ± 2.4 Ma with the e Hf(t) range from + 7.8 to + 12.1. The high contents of SiO_2(65.2%–66.8%) and total alkali(Na_2O + K_2O: 9.01%–9.95%), and low contents of Mg, Fe, Ca, P and Ti show the characteristics of alkali-rich granite. The total contents of rare earth elements range from 289.90 to 394.23 ppm. The Rb, Ba, K, Th, U and other LILE, Ta, Sr, P, Ti are enriched, and heavy rare earth elements are depleted. Petrogeochemical characteristics show that the dike was derived from a partial melting of newly-grown basaltic crust, and contaminated by crustal materials before experiencing strong fractional crystallization. The dike was formed in the intraplate post-orogenic extension stage and indicates that parental magma rose to the shallow crust through a fault. This provides new evidence of tectonic and mantle-crust magmatic activities and may contribute to regional Au mineralization in southern Guizhou and neighboring areas. 展开更多
关键词 JURASSIC GRANITOID DIKE GEOCHEMICAL characteristics GEOCHRONOLOGY luodian guizhou province
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Rare Earth Elements Compositions and Genesis of Xinhua Large-Scale Phosphorite Deposit in Western Guizhou, China 被引量:11
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作者 王敏 孙晓明 马名扬 《Journal of Rare Earths》 SCIE EI CAS CSCD 2005年第3期323-330,共8页
Zhijin County in Western Guizhou is one of the most important production areas of phosphorites in China. In order to investigate genesis of the phosphorites, their REE compositions were analyzed by using inductively c... Zhijin County in Western Guizhou is one of the most important production areas of phosphorites in China. In order to investigate genesis of the phosphorites, their REE compositions were analyzed by using inductively coupled plasma emission mass spectrometry (ICP-MS) method. For comparison, phosphorites from the Lower Cambrian black rock series in Southern China, such as Zunyi in Guizhou and Zhangjiajie in Hunan Province, were also analyzed. The analytical data show that: (1) Xinhua phosphorites possess a quite high and greatly varied total rare earth elements (ΣREE), which varying between 164.23×10-6 and 1395.01×10-6 with average of 642.54×10-6, remarkable differentiation between light (LREE) and heavy rare earth elements (HREE), and the ΣLREE/ΣHREE ratios varying between 5.04 and 6.52. The ΣREE and ΣLREE/ΣHREE ratios of the Zunyi and Zhangjiajie phosphorites are 156.69×10-6~637.41×10-6 with average of 431 75×10-6 and 3.17~6.95 with average of 4.37 respectively; (2) All the phosphorites from Xinhua, Zunyi and Zhangjiajie show remarkable negative Ce anomalies. Besides, the Xinhua phosphorites possess lower δCe, which varying between 0.26 and 0.53 with average of 0.35, while δCe of the Zunyi and Zhangjiajie phosphorites are 0.30~0.66 with average of 0.47, suggesting that all of the phosphorites are typical marine sediments deposited mainly in ancient peri-continental seas, and the depositional position of the Xinhua phosphorite might be deeper; (3) Most phosphorites from Xinhua, Zunyi and Zhangjiajie possess unremarkable positive Eu anomaly, and only a few of samples show obvious ones. The δEu varies between 0.98 and 2.4, suggesting that hot (>200 ℃) and strong reductive hydrothermal fluids might have been involved in genesis of the phosphorites; (4) The Xinhua phosphorite is relatively depleted in HREE, and LaN/NdN and δY of most samples are >1 and >1.5 respectively. Besides, there exists no correlation between δY and δCe, suggesting that the phosphorite was subjected to quite strong weathering and leaching processes, and catagenesis do not greatly modify its REE compositions. 展开更多
关键词 PHOSPHORITE Lower Cambrian black rock series Zhijin county of Western guizhou rare earths
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Emplacement Ages and Geochemical Characteristics of Grabbroic Intrusions and Prospecting Orientation of Related Deposit in Luodian,Guizhou Province 被引量:5
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作者 FANG Weixuan HU Ruizhong +1 位作者 SU Wenchao XIAO Jiafei 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2008年第4期864-874,共11页
Emplacement ages, geochemical characteristics and analysis of continental dynamics on gabbroic intrusions in Luodian County, Guizhou Province, have been discussed based on studies of isotopic chronology (the whole-ro... Emplacement ages, geochemical characteristics and analysis of continental dynamics on gabbroic intrusions in Luodian County, Guizhou Province, have been discussed based on studies of isotopic chronology (the whole-rock Sm-Nd and Rb-Sr isochron methods), major elements, trace elements and PGE. Intrusive activities of the gabbroic intrusions in the study area took place during the Late Yanshanian Orogenic Movement (the Cretaceous Period), as indicated by the Sm-Nd isochron ages (t)=(99.6±4.5) (2σ) Ma and by the Rb-Sr isochron ages t=(97±1.6) (2σ) Ma. The gabbroic intrusions are attached to mafic rocks in cal-alkaline basaltic series. They occurred as dikes and might be formed under an extensional background of the continent. Differentiation of their magmatic crystallization resulted in obvious zonation of petrography. In the gabbroic intrusions of this study, large ion lithophile elements and LREE are enriched, and the chondrite-normalized REE distribution pattern is leftward inclined without anomalies of JCe or JEu, and there are high concentrations of PGE and ratios of Pd/Ir (averaging 4.21). All of these imply that their source areas may be basaltic magma in the upper mantle with high-level partial melting, derived from EMl-type enriched mantle. It is different from Emeishan basalt, which may be related to the upper mantle at low-grade partial melting. Emplacement mechanism of the gabbroic intrusions in this study may suppose to be asthenosphere upheaving as an isolated hot wave in the presence of mantle fluid, resulting in basaltic magma intruded into the continental crust as a diapiric intrusion. Therefore, uplifting of faulting-block and extensional deformation could take place in the shallow part of the continental crust while vertical amassing and accretion of magmatic materials in the deep part of the continental crust. These special processes could supposed to be a special background of continental dynamics for this large-scale epithermal metallogenic domain, such as Au, As, Sb and Hg deposits, and vertical uplifting of the Yunnan-Guizhou Plateau in the Cretaceous Period. 展开更多
关键词 emplacement age geochemical characteristics continental dynamics gabbroic intrusion luodian county of guizhou Province
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Human Driving Forces:Analysis of Rocky Desertification in Karst Region in Guanling County,Guizhou Province 被引量:20
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作者 WU Xiuqin LIU Hongmeng +1 位作者 HUANG Xiulan ZHOU Tao 《Chinese Geographical Science》 SCIE CSCD 2011年第5期600-608,共9页
Karst rocky desertification is one of the major ecological and environmental problems that threaten the sustainable development of southwestern China. It is caused by irrational and intensive land-use patterns in kars... Karst rocky desertification is one of the major ecological and environmental problems that threaten the sustainable development of southwestern China. It is caused by irrational and intensive land-use patterns in karst geo-ecological environment. Therefore, it is vital to identify how human forces work on this degraded environment. Based on the soil erosion information in 2000 and remote sensing images of Guanling County collected in 2000 and 2007, four grades of karst rocky desertification data in 14 villages of Guanling County were extracted. Impacts of population, affluence, and other human forces on karst rocky desertification were analyzed using STIRPAT model. The results show that:1) Factors of population and affluence had strong influence on karst rocky desertification. In the STIRPAT model analysis, the population and affluence coefficients were positive, indicating that the increase in population and affluence would lead to more serious desertification. 2) Factors of farmer correlated with karst rocky desertification negatively, especially the way of viewing the relationship between people and nature, and the level of knowledge about rocky desertification. Government behavior was not a significant factor in this analysis. 3) The findings provide evidence that STIRPAT model can be used to analyze the relationship between human driving forces and rocky desertification. 展开更多
关键词 karst rocky desertification human driving forces STIRPAT model Guanling county guizhou Province
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Investigation and Analysis on Agricultural Biological Resources of Wuchuan Gelao and Miao Autonomous County,Guizhou Province
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作者 Haiping WANG Lin YANG +4 位作者 Tengwen HU Jie JIN Xiangqun TANG Jian ZHANG Xixiang LI 《Asian Agricultural Research》 2019年第2期80-87,91,共9页
Wuchuan Gelao and Miao Autonomous County is located in the northeast of Guizhou Province,and in the border of Guizhou and Chongqing,having a subtropical humid monsoon climate. There is no severe heat in summer,and no ... Wuchuan Gelao and Miao Autonomous County is located in the northeast of Guizhou Province,and in the border of Guizhou and Chongqing,having a subtropical humid monsoon climate. There is no severe heat in summer,and no severe cold in winter. It has distinct national characteristics,and there are many biological resources with national characteristics. A systematic investigation of biological resources in the county for nearly a month was carried out by organizing a professional investigation team. The investigation covered 5 townships and we visited 12 village committees and 26 villagers' groups,involving three ethnic groups: Gelao,Tujia and Miao. The biological resources closely related to the agricultural production and life of local ethnic groups were investigated,collected and sorted out. A total of 230 samples of all kinds of resources were collected,including 47 food crops,75 vegetables and annual crops,37 fruit trees and perennial crops,and 71 medicinal plants. Of these,a total of 73 were unique,superior and special resources. Based on general investigation and professional investigation,this paper analyzes the present situation,growth and decline of local agricultural biological resources,and puts forward some suggestions for the protection,development and utilization of agricultural biological resources. 展开更多
关键词 guizhou Wuchuan county Investigation of biological RESOURCES
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Factor Capitalization,Industry Development and Targeted Poverty Alleviation——Based on the Investigation of Danzhai County,Guizhou Province
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作者 Zhang Haipeng Guo Li(译) 《Contemporary Social Sciences》 2018年第3期40-61,共22页
At present,targeted poverty alleviation is a major development strategy in China.Based on the investigation of Danzhai County in Guizhou Province,this paper argues that industry development is the fundamental measure ... At present,targeted poverty alleviation is a major development strategy in China.Based on the investigation of Danzhai County in Guizhou Province,this paper argues that industry development is the fundamental measure through which to implement the poverty alleviation program.Industry development includes both the development of local industries in povertystricken areas and the development of industries in other regions of China.Local development is mainly achieved when the invisible superior resources become visible and the notable superior resources are capitalized in povertystricken areas,in which,the capitalization of factors and resources relies on fundamental governmental investments which will create a profit space for the poverty-stricken areas through the down-to-countryside cadres' precise guidance for the use of poverty alleviation funds to help identify a breakthrough for industry development,and particularly the attempts to focus on the development of high-end industries under the lower-end production mode to form a community with common interests aiding poverty alleviation.Development in other regions can be mainly achieved through various modes such as "tax-finance-poverty alleviation," "industry-employment-poverty alleviation" and "industry-enterprise direct investment-poverty alleviation" to offer indirect or direct support for poverty alleviation in poverty-stricken areas.An appropriate handling is required to deal with many problems related to the local industry development in targeted poverty alleviation and the targeted poverty alleviation in industry development. 展开更多
关键词 targeted poverty alleviation FACTOR CAPITALIZATION industry development Danzhai county of guizhou Province
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黔西南望谟县打岩萤石矿床流体包裹体地球化学特征
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作者 杨友 公斌 +1 位作者 潘有良 肖玉 《地质与勘探》 CAS CSCD 北大核心 2024年第5期971-981,共11页
黔西南望谟县打岩萤石矿床产于二叠系吴家坪组灰岩层间破碎带及P/T界面构造蚀变体中。通过萤石流体包裹体岩相学、显微激光拉曼光谱成分分析,探讨打岩独立萤石矿成矿流体性质、来源及成因机制,以丰富望谟县地区萤石矿研究资料,为下一步... 黔西南望谟县打岩萤石矿床产于二叠系吴家坪组灰岩层间破碎带及P/T界面构造蚀变体中。通过萤石流体包裹体岩相学、显微激光拉曼光谱成分分析,探讨打岩独立萤石矿成矿流体性质、来源及成因机制,以丰富望谟县地区萤石矿研究资料,为下一步找矿勘查提供参考。该矿床流体包裹体主要发育气液H_(2)O包裹体(Ⅱ型)及少量富子晶包裹体,萤石流体包裹体均一温度为101~216℃,主要集中在130~150℃;盐度为0.17%~1.45%NaCl_(eqv),密度为0.84~0.96 g/cm^(3),属低盐度及低密度流体范围。成矿流体成分较为简单,固相成分为方解石(CaCO_(3))、气相成分主要为H_(2)O、微弱CO_(2),液相成分为H_(2)O,主要为NaCl-H_(2)O体系。打岩萤石矿床为金、锑矿成矿流体同源,属于该流体晚期阶段成矿产物。含F成矿流体沿南盘江深大断裂上涌通过P/T界面运移,与围岩发生水岩反应萃取围岩中的钙,在向地表运移中因大气降水加入使成矿流体发生冷却,同时构造扩容减压作用使成矿流体沸腾导致CaF2沉淀。在吴家坪组灰岩层间破碎带、节理裂隙及P/T界面虚脱空间等成矿有利部位形成交代充填型低温热液萤石矿床。 展开更多
关键词 萤石矿 流体包裹体 均一温度 打岩背斜 望谟 黔西南
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贵州省桐梓县耕地表层土壤钾元素分布特征及生态环境评价
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作者 潘有良 费光春 +6 位作者 张钟华 杨恩林 王小洪 刘浩 肖波 吴鹏 肖玉 《中国地质》 CAS CSCD 北大核心 2024年第4期1304-1318,共15页
【研究目的】钾是植物必需的三大营养元素之一,也是土壤肥力的重要影响因子。开展桐梓县耕地表层土壤钾分布特征研究,为县域农业发展、生态环境评价提供环境地质本底参考。【研究方法】本文以桐梓县为研究区,依据耕地质量地球化学调查... 【研究目的】钾是植物必需的三大营养元素之一,也是土壤肥力的重要影响因子。开展桐梓县耕地表层土壤钾分布特征研究,为县域农业发展、生态环境评价提供环境地质本底参考。【研究方法】本文以桐梓县为研究区,依据耕地质量地球化学调查所获得的表层土壤样品中钾、速效钾等指标数据,系统地探讨了耕地表层土壤钾和速效钾的含量、空间分布特征、等级状况及影响因素。【研究结果】研究区耕地表层土壤钾含量范围为2.50~49.60g/kg,平均值为20.30 g/kg;钾含量整体以中等、较丰富、丰富等级为主。速效钾含量范围为22.40~684.00 mg/kg,平均值为112.66 mg/kg;速效钾含量整体为中等至较缺乏等级。耕地表层土壤钾、阳离子交换量与速效钾呈正相关关系,pH与速效钾呈负相关关系。【结论】研究区耕地表层土壤钾、速效钾分布不均衡。耕地表层土壤钾受地质背景影响显著,高值区、低值区的分布与区内地层、构造套合较好。耕地表层土壤钾含量主受控于成土母岩,钾在灰岩及其形成的土壤中含量较低,其在南部乡镇集中大面积缺乏与广泛分布的二叠系茅口组灰岩母岩区有关。 展开更多
关键词 耕地 土地质量地球化学 钾元素 速效钾 成土母岩 农业地质调查工程 桐梓县 贵州省
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基于形成机理的石漠化敏感性评价:以贵州省黔西县为例 被引量:3
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作者 张景华 张建龙 +3 位作者 欧阳渊 高慧 刘洪 刘小霞 《沉积与特提斯地质》 CAS CSCD 北大核心 2024年第1期162-171,共10页
在遥感解译和野外调查基础上,通过分析石漠化的成因与形成机理,找出影响石漠化敏感性的主要自然因素,选取年降雨量、坡度、岩性组合、土壤质地和植被覆盖度5个指标,在GIS的支持下,采用改进的层次分析法,开展了黔西县石漠化敏感性评价。... 在遥感解译和野外调查基础上,通过分析石漠化的成因与形成机理,找出影响石漠化敏感性的主要自然因素,选取年降雨量、坡度、岩性组合、土壤质地和植被覆盖度5个指标,在GIS的支持下,采用改进的层次分析法,开展了黔西县石漠化敏感性评价。结果表明:黔西县石漠化仍然处于较为敏感状态,中度、高度和极敏感区域的面积合计为1176.39 km^(2),占46.97%,发生石漠化可能性依然存在;中度、高度和极敏感区主要分布于洪水—仁和、定新—重新、五里—沙井和钟山—铁石—素朴等区域,与石漠化土地的分布区域一致;绝大部分石漠化高度敏感区和极敏感区分布在三叠系碳酸盐岩地层中,嘉陵江组是敏感性最高的地层单元;通过综合研究石漠化各相关因素的作用机理和内在联系及继承关系来比较各相关因素的重要性,可以替代专家调查表方法,来降低层次分析法的随意性和主观性。 展开更多
关键词 石漠化 形成机理 改进层次分析法 敏感性评价 贵州省 黔西县
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贵州兴义普克金矿区土壤地球化学异常特征及找矿方向
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作者 杨志书 陈强 刘旭 《矿产与地质》 2024年第4期743-752,778,共11页
贵州省普克金矿区位于著名的黔西南泥堡金矿西南方向的外围区域,与泥堡金矿处于相同的大地构造环境,地层特征、构造样式基本相同,成矿地质条件良好,且早期120万水系沉积物地球化学测量成果显示普克金矿区内Au、Sb、As异常区域呈现较好... 贵州省普克金矿区位于著名的黔西南泥堡金矿西南方向的外围区域,与泥堡金矿处于相同的大地构造环境,地层特征、构造样式基本相同,成矿地质条件良好,且早期120万水系沉积物地球化学测量成果显示普克金矿区内Au、Sb、As异常区域呈现较好的重叠关系。为进一步缩小找矿工作范围,文章通过在普克金矿区开展11万土壤地球化学测量,在统计分析12个被测元素变化系数、富集离散程度的基础上,结合聚类分析、相关分析、因子分析揭示元素组合规律,结果表明As、Sb、Cu、Hg等元素是区内寻找金矿的重要指示元素。文章采用平均值±3倍标准差的方法确定各元素的异常下限,并据此在普克金矿区内圈定了4处找矿指示元素叠加异常区域(HS-1~HS-4),其中有利找矿靶区2处。研究结果揭示了土壤地球化学在本区找矿的有效性。 展开更多
关键词 普克金矿 土壤地球化学测量 化探异常 贵州兴义
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贵州关岭地区法郎组瓦窑段菊石类新材料
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作者 马知恒 李世鑫 +2 位作者 陈镜文 何犇 张廷山 《地质论评》 CAS CSCD 北大核心 2024年第2期769-776,共8页
本文对采自于贵州关岭地区上三叠统卡尼阶法郎组瓦窑段上部的齿菊石目化石进行了研究,共识别出3属3种,其中包含一新种Arctosirenites mingqingensissp.nov.。Arctosirenites mingqingensis sp.nov.以具有细密横肋及粗壮腹缘瘤为特征,属K... 本文对采自于贵州关岭地区上三叠统卡尼阶法郎组瓦窑段上部的齿菊石目化石进行了研究,共识别出3属3种,其中包含一新种Arctosirenites mingqingensissp.nov.。Arctosirenites mingqingensis sp.nov.以具有细密横肋及粗壮腹缘瘤为特征,属Klipsteinia在华南为首次发现。根据Klipsteinia和Arctosirenites组合特征判断贵州关岭地区上三叠统法郎组瓦窑段底部时代为晚三叠世早卡尼期早期(Julian 1),上部时代归属于晚卡尼期早期(Tuvalian 1),并且认为造成法郎组瓦窑段底部的岩性变化是由于构造因素导致,而并非受到卡尼期湿润幕事件(CPE,Carnian Pluvial Episode)的影响。 展开更多
关键词 Arctosirenites mingqingensis sp.nov. 菊石类 卡尼期湿润幕事件 晚三叠世 贵州关岭
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织金县苗族射弩的历史源流、价值彰显与纾解路径
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作者 练栋林 刘转青 +1 位作者 华勇 王白雪 《武术研究》 2024年第10期124-127,共4页
文章运用文献研究法、历史研究法、逻辑思辨法等研究方法,以贵州织金县苗族射弩为例,就苗族射弩的历史源流、价值彰显、发展困境进行梳理,并对其未来发展纾解路径进行探索性研究。分析得出织金苗族射弩具有丰富业余生活、强身健体、促... 文章运用文献研究法、历史研究法、逻辑思辨法等研究方法,以贵州织金县苗族射弩为例,就苗族射弩的历史源流、价值彰显、发展困境进行梳理,并对其未来发展纾解路径进行探索性研究。分析得出织金苗族射弩具有丰富业余生活、强身健体、促进经济增长、拓宽教育、增进民族认同、推动文化交流、保留历史痕迹等价值。现实困境:苗族射弩“边缘化”;现代化进程中缺乏民族文化认同导致传承人流失;西方竞技体育文化的涌入导致苗族射弩被冷落;学校体育教育的现代化价值取向导致传承路径中断。基于此,提出政府监管、文化自觉、体旅结合和教育传承等发展策略。 展开更多
关键词 苗族射弩 传承 织金县
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贵州三穗龙湾大型铀矿床铀的赋存状态和地球化学研究
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作者 黄启琳 吴承泉 +6 位作者 徐进鸿 王琼 李溪遥 彭松 范云飞 卢平 靳子茹 《矿物学报》 CAS CSCD 北大核心 2024年第4期508-525,共18页
贵州三穗县龙湾铀矿床是近年勘查发现的大型铀矿床,矿体呈层状、似层状产于震旦-寒武系老堡组黑色岩系中。前人对该矿床开展了矿床地质和地球化学研究,但铀的赋存状态、成矿物质来源和成矿环境尚不明确。本文选取龙湾矿床南部的老棚剖... 贵州三穗县龙湾铀矿床是近年勘查发现的大型铀矿床,矿体呈层状、似层状产于震旦-寒武系老堡组黑色岩系中。前人对该矿床开展了矿床地质和地球化学研究,但铀的赋存状态、成矿物质来源和成矿环境尚不明确。本文选取龙湾矿床南部的老棚剖面为研究对象,开展矿物学和全岩元素地球化学研究。研究结果表明铀主要以沥青铀矿和钛铀矿等的独立铀矿物形式存在于磷灰石矿物边缘、裂隙及孔洞处,部分以类质同象形式赋存于磷灰石的晶格中。全岩地球化学分析结果显示样品Y/Ho值为16.3~63.2(均值为40.3),Zr/Hf值为33.6~79.3(均值为42.3),靠近上地壳的值;样品具有相对平坦的稀土元素配分模式,显示无-弱Eu正异常(δEu为0.27~1.19,均值为0.82);硅质岩Ge/Si值为1.23×10^(-6)~0.15×10^(-6)(均值为0.47×10^(-6)),均接近现代海水平均值,表明龙湾铀矿床成岩成矿物质来源主要为陆源风化碎屑物质,受到海底热水作用的影响小。样品V/(V+Ni)值为0.43~0.98(均值为0.80),Ni/Co值为1.80~58.0(均值为12.7),具有明显Ce负异常(δCe值为0.31~0.81,均值为0.60),表明龙湾铀矿床形成于还原沉积环境中。综合研究表明,在新元古代晚期-晚古生代早期,黔东地区大陆风化作用为海洋提供了铀,在还原条件下形成龙湾黑色岩系型铀矿床。 展开更多
关键词 黑色岩系型铀矿床 赋存状态 地球化学 矿床成因 贵州三穗
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基于多方法的猕猴种群数量县域快速调查与人猴冲突分析:以贵州长顺为例
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作者 何曼芳 王丽娟 +3 位作者 杨光美 曹和琴 刁奕欣 粟海军 《山地农业生物学报》 2024年第5期18-25,共8页
近年来,猕猴(Macaca mulatta)在多地种群增长迅速且人猴冲突事件频发。摸清猕猴种群数量及其人猴冲突状况是开展有效管理的前提。本文以贵州长顺县为例,综合利用非诱导式访问、样线(带)与定点观测、红外相机配合夜宿地调查以及无人机调... 近年来,猕猴(Macaca mulatta)在多地种群增长迅速且人猴冲突事件频发。摸清猕猴种群数量及其人猴冲突状况是开展有效管理的前提。本文以贵州长顺县为例,综合利用非诱导式访问、样线(带)与定点观测、红外相机配合夜宿地调查以及无人机调查等方法对贵州长顺县猕猴种群数量及人猴冲突现状进行调查分析。结果显示:(1)以95%的可靠性和62%的调查精度表明,长顺县域共分布有猕猴群体20群,总数351±138只,并集中分布于南部区域;(2)应用的调查方法各有优缺点,其中,样线(带)与定点观测法发现猴群几率较大,访问调查法较为便捷,多方法综合使用能有效弥补单一调查方法获取数据的局限性;(3)猕猴危害作物高峰期发生在6—7月,与当地主要受害作物种类玉米成熟期时间一致,同时观测到靠近山林和水源的作物更易遭受猕猴危害;(4)原住民对猕猴保护态度各有不同,其中,有47.92%的受访者对猕猴保护政策持积极态度,52.08%的受访者持消极态度,其保护态度主要受受访者主要收入来源、受教育程度和猕猴危害造成的损失程度3个因素影响。本研究可为西南山地区域性猕猴种群快速调查与保护管理决策提供有益参考。 展开更多
关键词 猕猴 种群数量 人猴冲突 野外调查 贵州长顺
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区域创新能力的时空演变、驱动因素与动力升级——以贵州县域为例
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作者 蒙昱竹 郝振龙 王雪 《科技管理研究》 CSSCI 2024年第15期96-109,共14页
创新是引领发展的第一动力。尤其是推动以县域为载体的创新能力建设,是促进社会发展的重要推动力。然而,现实却是各地区创新能力发展不平衡不充分,通常来说,西部县域的创新能力建设落后于东中部地区,实现西部县域创新能力的进步,对于全... 创新是引领发展的第一动力。尤其是推动以县域为载体的创新能力建设,是促进社会发展的重要推动力。然而,现实却是各地区创新能力发展不平衡不充分,通常来说,西部县域的创新能力建设落后于东中部地区,实现西部县域创新能力的进步,对于全国地区的创新驱动发展战略的实行有着举足轻重的作用。贵州县域作为西部欠发达县域的典型代表,兼具城镇化质量发展较差、经济水平较为落后等特点,还具有典型的山地地区特征,极具地方特色。贵州县域创新能力的时空演变趋势、驱动创新能力的因素以及如何提升驱动力暂且未知。为此,以贵州2011—2021年间88个县域为研究对象,利用熵值法和层次分析法(AHP)构建衡量创新能力的综合指标体系,应用经济学和地理学的方法,研究贵州县域创新能力的时空演变趋势、驱动创新能力的因素以及如何提升驱动力。结果表明,第一,贵州创新能力在2011—2021年呈现出上升趋势并且存在空间相关性;第二,经济发展、金融发展、技术水平等要素可以显著驱动贵州县域创新能力提升;第三,贵州县域创新能力的驱动力发展和驱动力进步情况存在时空差异,进行四象限分类得出“高-高”值象限的县域数量最多。 展开更多
关键词 创新能力 时空演变 驱动因素 动力升级 贵州县域
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贵州独山降尘-土壤-水体重金属分布特征
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作者 息朝庄 刘开坤 范云飞 《湖南城市学院学报(自然科学版)》 CAS 2024年第3期40-49,共10页
以贵州省独山县大气降尘、雨水、土壤与灌溉水样品为研究对象,对其重金属元素地球化学特征进行了分析,并对其重金属污染情况进行了评价。分析结果表明:大气降尘中重金属元素主要有As、Cd、Cr、Hg和Pb,含量排序为Hg<Cd<As<Cr<... 以贵州省独山县大气降尘、雨水、土壤与灌溉水样品为研究对象,对其重金属元素地球化学特征进行了分析,并对其重金属污染情况进行了评价。分析结果表明:大气降尘中重金属元素主要有As、Cd、Cr、Hg和Pb,含量排序为Hg<Cd<As<Cr<Pb;雨水重金属中元素主要有As、B、F、Hg、Pb和Zn;研究区土壤偏酸性,135件表层土壤样品中元素As、Cr、Cu、Hg、Ni、Pb、Zn、Mn和Se的含量、土壤pH值与Cd的含量均呈显著正相关;灌溉水中重金属元素单因子污染指数大多数为1级,属清洁范围,仅2件样品中元素Hg为轻度污染。评价结果显示:研究区内大气降尘年通量密度平均值排序为Hg<Cd<As<Cr<Pb;土壤中Cd单因子污染指数最高,其污染贡献最大;内梅罗综合污染指数大小排序为麻尾镇和平村>基长镇尧新村>上司镇王龙村;地累积指数I_(geo)、潜在生态风险指数Er研究表明,元素Hg、Cd危害指数占比较高;灌溉水水质绝大多数达标,仅2件样品中Hg超标;土壤剖面中除Cr以外,As、Cu、Pb、Zn、Hg、Cd和Ni均具有母质层→淀积层→林滤层含量富集规律,尤其在淀积层至林滤层阶段富集加剧。研究区大气降尘主要来源为燃煤尘、交通尘;土壤重金属元素Cd超标,其污染来源为地质背景、采矿活动、工业三废和燃煤源;灌溉水Hg超标可能源于大气降尘。 展开更多
关键词 降尘 土壤 独山县 贵州省
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贵州省三都县滑坡特征及分布规律研究
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作者 兰中孝 张才兵 +4 位作者 杨雲兵 卢思其 王源 夏江黔 丁金英 《地质与勘探》 CAS CSCD 北大核心 2024年第4期830-837,共8页
为提高贵州省三都县地质灾害的防灾减灾能力,通过资料收集、地质灾害调查、数理统计、GIS空间分析等手段,查明了研究区滑坡数量及特征,研究了滑坡与地质构造、工程地质岩组、斜坡结构、坡度、坡形和人类工程活动等孕灾因子的关系,总结... 为提高贵州省三都县地质灾害的防灾减灾能力,通过资料收集、地质灾害调查、数理统计、GIS空间分析等手段,查明了研究区滑坡数量及特征,研究了滑坡与地质构造、工程地质岩组、斜坡结构、坡度、坡形和人类工程活动等孕灾因子的关系,总结该县滑坡发育特征与分布规律。结果表明:研究区共发育滑坡57处,多发育在坡度20°~30°范围内,相对高差主要在20~40 m之间,坡形以凸形坡为主。在地质构造方面,丰乐断层、大河断层、烂土断层影响较大,该区域发育地质灾害共35处。软质岩组、顺向坡结构的斜坡区与河流两侧地质灾害数量也较多。按照地质环境差异和滑坡分布规律进行孕灾地质条件复杂、中等和一般分区,研究成果可为地质环境条件相似的地区在风险防控方面提供参考。 展开更多
关键词 滑坡 地形地貌 分布规律 发育特征 孕灾条件 三都县 贵州省
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