With the aid of remote sensing and geographical information system,and by selecting multiple landscape indices including NP,SHID,LSI,IJI and so on,the dynamic variation of landscape pattern of Shaoguan City in 1993 an...With the aid of remote sensing and geographical information system,and by selecting multiple landscape indices including NP,SHID,LSI,IJI and so on,the dynamic variation of landscape pattern of Shaoguan City in 1993 and 2004 was analyzed from the perspective of landscape type and level based on the value of 300 meters size. The result showed that forest landscape of Shaoguan City had been eroded and divided;water landscape was much more stable;farmland landscape enjoyed high import rate and export rate;the construction land was in the process of decentralized non-equilibrium,all of which indicated that the heterogeneity and fragmentation of the overall landscape had increased.展开更多
With the rapid development of economy and close international exchanges, the English translation of public signs is in-creasingly important and cannot be ignored. This paper takes Shaoguan National Forest Park as an e...With the rapid development of economy and close international exchanges, the English translation of public signs is in-creasingly important and cannot be ignored. This paper takes Shaoguan National Forest Park as an example to analyze its publicsigns translation and points out some pragmatic failures from two aspects:pragmatic language failures and social pragmatic failures.Also, the paper puts forward some suggestions based on the translation error analysis.展开更多
The Wuchuan-Sihui-Shaoguan(WSS)exhalative sedimentary pyrite belt in the southwestern part of the Qinzhou-Hangzhou(Qin-Hang)belt is the most important sulfur industry base in China.However,a wide range of metallogenet...The Wuchuan-Sihui-Shaoguan(WSS)exhalative sedimentary pyrite belt in the southwestern part of the Qinzhou-Hangzhou(Qin-Hang)belt is the most important sulfur industry base in China.However,a wide range of metallogenetic ages spanning from Ediacaran to Devonian has been reported in the literature.This age range does not support the idea that the typical character of"coeval mineralization"in an exhalative sedimentary mineralization belt in China and worldwide.Therefore,the precise determination of mineralization ages of representative deposits is necessary to provide guides for exploration and metallogenetic models.The Dajiangping pyrite deposit is a typical example of this kind of deposits and is also the largest deposit with a proven reserve of 210 Mt.This deposit was thought to have formed in Ediacaran or Devonian.In this study,2-3 layers of 10-25 cm thick 2M1-type microcrystalline muscovite slate abruptly embedded in the No.Ⅳmassive orebody of the deposit has been identified to be low-grade metamorphic K-bentonite.A Concordia zircon LA-ICP-MS U-Pb age of 432.5±1.3 Ma(mean standard weighted deviation of concordance and equivalence=1.2;N=11)has been yielded for the low-grade metamorphic K-bentonite.This age is distinctly different from the Rb-Sr isochron age of630.1±7.3 Ma for siliceous rock at the top of the No.Ⅲbanded orebody and the Re-Os isochron age of 389±62 Ma for pyrites from a laminated orebody.Instead,it is close to the intercept age(429 Ma)of the youngest detrital zircons from sandstone interlayers of the No.Ⅲbanded orebody.The Concordia age is also coincident with those of the Late Caledonian(400-460 Ma)magmatism-metamorphism events which are widely distributed in Cathaysia Block.Particularly,it agrees well with that of the Early Silurian extensional volcanism(434-444 Ma)which have been revealed in the Dabaoshan,Siqian-Hekou,and Nanjing volcanic basins in northern Guangdong Province and southern Jiangxi Province.Hence,the dating result in this study confirms that the sedimentary time of the ore-host Daganshan Formation is Early Silurian,and implies that the mineralization age of the Dajiangping pyrite deposit should also be Early Silurian.In combination with the Early Silurian age of Shezui pyrite deposit and the Dabaoshan volcanic basin along the WSS pyrite belt,it could be inferred that the WSS pyrite belt provides a record of the northern expanding of Qinzhou-Fangcheng trough in Early Silurian and that the exhalative pyrite mineralization was triggered by the postcollisional extension of the margin of Cathaysia Block after the intracontinental collision between Cathaysia Block and Yangtze Block during Late Caledonian stage.展开更多
In order to explore the protection and renewal law of historic sites in the process of contemporary urban construction, combined with the protection and renewal practice of Qujiang garden cultural landscape heritage s...In order to explore the protection and renewal law of historic sites in the process of contemporary urban construction, combined with the protection and renewal practice of Qujiang garden cultural landscape heritage sites in ancient Chang'an, this paper analyzed the authenticity in the protection and renewal of different historic sites, and explored the possibility of flexible use of the concept of authenticity in the process of protection and renewal of historic sites.展开更多
Based on the daily precipitation data between 1965 and 2009 from 8 rainfall stations in Shaoguan City,the indexes of precipitation concentration degree（ PCD） and precipitation concentration period（ PCP） were calcu...Based on the daily precipitation data between 1965 and 2009 from 8 rainfall stations in Shaoguan City,the indexes of precipitation concentration degree（ PCD） and precipitation concentration period（ PCP） were calculated. And then inverse distance weighted（ IDW） interpolation method was used to analyze the heterogeneous distribution characteristics of inter-annual precipitation by introducing the spatial distribution of annual mean values,variable coefficients,correlation coefficients with annual precipitation,change trends and composite analysis. The results showed that PCD was mainly decreasing from southeast to northwest in spatial distribution,long-term average annual values of PCP were distributed in the first ten days of June at most region. Annual precipitation increased as PCD increased in southern region,but the change trend was the opposite in northern region. Annual precipitation increased as PCP lagged in most region. PCD and PCP mainly appeared upward trend. Composite analysis of PCD in more-precipitation years was similar to less-precipitation years in spatial distribution,but the PCD in less-precipitation years was higher.Seen from the mean in the whole region,PCP in more-precipitation years lagged about 20 days behind those in less-precipitation years. The research can provide basis for the production of agriculture and industry as well as disaster prevention and reduction.展开更多
基金Supported by State Natural Sciences Foundation (40771002)~~
文摘With the aid of remote sensing and geographical information system,and by selecting multiple landscape indices including NP,SHID,LSI,IJI and so on,the dynamic variation of landscape pattern of Shaoguan City in 1993 and 2004 was analyzed from the perspective of landscape type and level based on the value of 300 meters size. The result showed that forest landscape of Shaoguan City had been eroded and divided;water landscape was much more stable;farmland landscape enjoyed high import rate and export rate;the construction land was in the process of decentralized non-equilibrium,all of which indicated that the heterogeneity and fragmentation of the overall landscape had increased.
文摘With the rapid development of economy and close international exchanges, the English translation of public signs is in-creasingly important and cannot be ignored. This paper takes Shaoguan National Forest Park as an example to analyze its publicsigns translation and points out some pragmatic failures from two aspects:pragmatic language failures and social pragmatic failures.Also, the paper puts forward some suggestions based on the translation error analysis.
基金supported by the National Natural Science Foundation of China(Grant Nos.41873058 and 41462001)the Natural Science and Technology Foundation of Guizhou Province,China(Grant No.JZ[2015]2009)。
文摘The Wuchuan-Sihui-Shaoguan(WSS)exhalative sedimentary pyrite belt in the southwestern part of the Qinzhou-Hangzhou(Qin-Hang)belt is the most important sulfur industry base in China.However,a wide range of metallogenetic ages spanning from Ediacaran to Devonian has been reported in the literature.This age range does not support the idea that the typical character of"coeval mineralization"in an exhalative sedimentary mineralization belt in China and worldwide.Therefore,the precise determination of mineralization ages of representative deposits is necessary to provide guides for exploration and metallogenetic models.The Dajiangping pyrite deposit is a typical example of this kind of deposits and is also the largest deposit with a proven reserve of 210 Mt.This deposit was thought to have formed in Ediacaran or Devonian.In this study,2-3 layers of 10-25 cm thick 2M1-type microcrystalline muscovite slate abruptly embedded in the No.Ⅳmassive orebody of the deposit has been identified to be low-grade metamorphic K-bentonite.A Concordia zircon LA-ICP-MS U-Pb age of 432.5±1.3 Ma(mean standard weighted deviation of concordance and equivalence=1.2;N=11)has been yielded for the low-grade metamorphic K-bentonite.This age is distinctly different from the Rb-Sr isochron age of630.1±7.3 Ma for siliceous rock at the top of the No.Ⅲbanded orebody and the Re-Os isochron age of 389±62 Ma for pyrites from a laminated orebody.Instead,it is close to the intercept age(429 Ma)of the youngest detrital zircons from sandstone interlayers of the No.Ⅲbanded orebody.The Concordia age is also coincident with those of the Late Caledonian(400-460 Ma)magmatism-metamorphism events which are widely distributed in Cathaysia Block.Particularly,it agrees well with that of the Early Silurian extensional volcanism(434-444 Ma)which have been revealed in the Dabaoshan,Siqian-Hekou,and Nanjing volcanic basins in northern Guangdong Province and southern Jiangxi Province.Hence,the dating result in this study confirms that the sedimentary time of the ore-host Daganshan Formation is Early Silurian,and implies that the mineralization age of the Dajiangping pyrite deposit should also be Early Silurian.In combination with the Early Silurian age of Shezui pyrite deposit and the Dabaoshan volcanic basin along the WSS pyrite belt,it could be inferred that the WSS pyrite belt provides a record of the northern expanding of Qinzhou-Fangcheng trough in Early Silurian and that the exhalative pyrite mineralization was triggered by the postcollisional extension of the margin of Cathaysia Block after the intracontinental collision between Cathaysia Block and Yangtze Block during Late Caledonian stage.
基金Sponsored by the Fundamental Research Fund for Central Universities(2452018137 2452018138)
文摘In order to explore the protection and renewal law of historic sites in the process of contemporary urban construction, combined with the protection and renewal practice of Qujiang garden cultural landscape heritage sites in ancient Chang'an, this paper analyzed the authenticity in the protection and renewal of different historic sites, and explored the possibility of flexible use of the concept of authenticity in the process of protection and renewal of historic sites.
基金Supported by the National Natural Science Fund of China(41371498,31170486,41571091)Youth Fund of Humanistic and Social Sciences of the Ministry of Education of PRC in 2017(17YJCZH114)the"13th Five-year"Planning Item of Guangdong Philosophy and Social Sciences(GD16CGL10)
文摘Based on the daily precipitation data between 1965 and 2009 from 8 rainfall stations in Shaoguan City,the indexes of precipitation concentration degree（ PCD） and precipitation concentration period（ PCP） were calculated. And then inverse distance weighted（ IDW） interpolation method was used to analyze the heterogeneous distribution characteristics of inter-annual precipitation by introducing the spatial distribution of annual mean values,variable coefficients,correlation coefficients with annual precipitation,change trends and composite analysis. The results showed that PCD was mainly decreasing from southeast to northwest in spatial distribution,long-term average annual values of PCP were distributed in the first ten days of June at most region. Annual precipitation increased as PCD increased in southern region,but the change trend was the opposite in northern region. Annual precipitation increased as PCP lagged in most region. PCD and PCP mainly appeared upward trend. Composite analysis of PCD in more-precipitation years was similar to less-precipitation years in spatial distribution,but the PCD in less-precipitation years was higher.Seen from the mean in the whole region,PCP in more-precipitation years lagged about 20 days behind those in less-precipitation years. The research can provide basis for the production of agriculture and industry as well as disaster prevention and reduction.
