At present only five species of rhinoceros surrive in the world, among which three in Asia No wild rhinoceros has been found alive in East Asia now But many recent evidences reveal the fact that rhinoceros still liv...At present only five species of rhinoceros surrive in the world, among which three in Asia No wild rhinoceros has been found alive in East Asia now But many recent evidences reveal the fact that rhinoceros still lived not very long ago in the East Asian Continent of Holocene The attention to East Asia rhinoceros in Holocene first arose from archaeological studies on ancient ruins in China Archaeologists first found some subfossil skeletons of rhinoceros in ruins of Yin Dynasty in Anyang of Henan in the 1930s Then more skeletons of rhinoceros were found in many other Neolithic Ages runis, such as in Tonghai (Yunnan), Nanning (Guangxi), Xichuan (Henan), Yuyao (Zhejiang), and Haian (Jiangsu).(Guangxi Archaeological Team 1972; Jia 1977; Wu 1983; Huang and Liang 1984; Xu 1990). Moreover, Zhou Benxiong reported some rhinoceros teeth containing residual organic matter found in caves in the middle and lower reaches of Yangtze River According to a number of very now skeletons of rhinoceros found in some caves in Central China and South China, Yang Zhongjian drew the inferences that rhinoceros might live in the Southern part of China until in the Han Dynasty (about 2000 yrs B P ) at least These discoveries provided the material evidences for the distribution of rhinoceros in East Asian Continent Recently, some scholars brought forward more new information about Chinese rhinoceros from the analysis of historical records and investigations of unearthed cultural relics respectively (Wen and He 1981; Sun 1982). Based on the above materials and informations, this paper is going to deal with the species of rhinoceros once living in East Asia from the viewpoint of zoo geography At last, we brouhgt up the evolution process of the rhinoceros in distribution in Asia with comprehensive analysis of physiographical elements and human activities展开更多
本文以岩性地层、气候地层(CaCO_3含量、古温度和Rb/Sr比值等)、年代地层、沉积化学地层和生物组合地层等资料为基础,根据地层规范以及建组要求将渤海湾西岸全新世地层划分为3个组:独流镇组(Qh_3dl)、大黄洼组(Qh_2dh)和西翟庄组(Qh_1xz...本文以岩性地层、气候地层(CaCO_3含量、古温度和Rb/Sr比值等)、年代地层、沉积化学地层和生物组合地层等资料为基础,根据地层规范以及建组要求将渤海湾西岸全新世地层划分为3个组:独流镇组(Qh_3dl)、大黄洼组(Qh_2dh)和西翟庄组(Qh_1xz)。其地层埋深界线及测年界线分别为:晚全新世独流镇组(Qh_3dl)与中全新世大黄洼组(Qh_2dh)的分组埋深界线为3.70 m,^(14)C年龄界线大致为2 820±80 a B.P.～2 390±60 a B.P.左右;中全新世大黄洼组(Qh_2dh)与早全新世西翟庄组(Qh_1xz)的分组埋深界线为14.10 m,^(14)C年龄界线大致为7 800±120 a B.P.～8 650±85 a B.P.左右;早全新世西翟庄组(Qh_1xz)与晚更新世塘沽组(QP_3tg)的分组埋深界线为18.70 m,测年^(14)C年龄界线大致为9 405±120 a B.P.～10 300±790 a B.P.左右。根据沉积地球化学环境指标(CaCO_3含量、古温度和Rb/Sr比值等)划分出第Ⅰ气候冷段～第Ⅴ气候冷段;根据C_(org)/P_2O_5、Fe^2/Fe^3等含量曲线综合分析划出第Ⅰ·还原带～第Ⅴ·还原带。综合分析显示:气候冷期时往往处于还原环境,与此同时,海平面则呈波动下降趋势。展开更多
20141016An Chengbang(Key Laboratory of Western China’s Environmental Systems,Ministry of Education,Lanzhou University,Lanzhou 730000,China);Zhao Yongtao Lake Records during the Last Glacial Maximum from Xinjiang,NW C...20141016An Chengbang(Key Laboratory of Western China’s Environmental Systems,Ministry of Education,Lanzhou University,Lanzhou 730000,China);Zhao Yongtao Lake Records during the Last Glacial Maximum from Xinjiang,NW China and Their Climatic Impli-展开更多
文摘At present only five species of rhinoceros surrive in the world, among which three in Asia No wild rhinoceros has been found alive in East Asia now But many recent evidences reveal the fact that rhinoceros still lived not very long ago in the East Asian Continent of Holocene The attention to East Asia rhinoceros in Holocene first arose from archaeological studies on ancient ruins in China Archaeologists first found some subfossil skeletons of rhinoceros in ruins of Yin Dynasty in Anyang of Henan in the 1930s Then more skeletons of rhinoceros were found in many other Neolithic Ages runis, such as in Tonghai (Yunnan), Nanning (Guangxi), Xichuan (Henan), Yuyao (Zhejiang), and Haian (Jiangsu).(Guangxi Archaeological Team 1972; Jia 1977; Wu 1983; Huang and Liang 1984; Xu 1990). Moreover, Zhou Benxiong reported some rhinoceros teeth containing residual organic matter found in caves in the middle and lower reaches of Yangtze River According to a number of very now skeletons of rhinoceros found in some caves in Central China and South China, Yang Zhongjian drew the inferences that rhinoceros might live in the Southern part of China until in the Han Dynasty (about 2000 yrs B P ) at least These discoveries provided the material evidences for the distribution of rhinoceros in East Asian Continent Recently, some scholars brought forward more new information about Chinese rhinoceros from the analysis of historical records and investigations of unearthed cultural relics respectively (Wen and He 1981; Sun 1982). Based on the above materials and informations, this paper is going to deal with the species of rhinoceros once living in East Asia from the viewpoint of zoo geography At last, we brouhgt up the evolution process of the rhinoceros in distribution in Asia with comprehensive analysis of physiographical elements and human activities
文摘本文以岩性地层、气候地层(CaCO_3含量、古温度和Rb/Sr比值等)、年代地层、沉积化学地层和生物组合地层等资料为基础,根据地层规范以及建组要求将渤海湾西岸全新世地层划分为3个组:独流镇组(Qh_3dl)、大黄洼组(Qh_2dh)和西翟庄组(Qh_1xz)。其地层埋深界线及测年界线分别为:晚全新世独流镇组(Qh_3dl)与中全新世大黄洼组(Qh_2dh)的分组埋深界线为3.70 m,^(14)C年龄界线大致为2 820±80 a B.P.～2 390±60 a B.P.左右;中全新世大黄洼组(Qh_2dh)与早全新世西翟庄组(Qh_1xz)的分组埋深界线为14.10 m,^(14)C年龄界线大致为7 800±120 a B.P.～8 650±85 a B.P.左右;早全新世西翟庄组(Qh_1xz)与晚更新世塘沽组(QP_3tg)的分组埋深界线为18.70 m,测年^(14)C年龄界线大致为9 405±120 a B.P.～10 300±790 a B.P.左右。根据沉积地球化学环境指标(CaCO_3含量、古温度和Rb/Sr比值等)划分出第Ⅰ气候冷段～第Ⅴ气候冷段;根据C_(org)/P_2O_5、Fe^2/Fe^3等含量曲线综合分析划出第Ⅰ·还原带～第Ⅴ·还原带。综合分析显示:气候冷期时往往处于还原环境,与此同时,海平面则呈波动下降趋势。
文摘20141016An Chengbang(Key Laboratory of Western China’s Environmental Systems,Ministry of Education,Lanzhou University,Lanzhou 730000,China);Zhao Yongtao Lake Records during the Last Glacial Maximum from Xinjiang,NW China and Their Climatic Impli-
