中晚全新世科尔沁沙地沉积物化学特征及其气候变化

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

中晚全新世科尔沁沙地沉积物化学特征及其气候变化

详细信息

中图分类号: P512.2

计量

文章访问数: 2101
HTML全文浏览量: 14
PDF下载量: 642
被引次数: 0

Chemical Characteristics of Sediments in Horqin Desert and Climatic Change during the Middle and Late Holocene

摘要

摘要: 科尔沁沙地位于我国沙漠—黄土边界带和北方农牧交错带，深受东亚季风的影响，对全球气候变化反应非常敏感，是研究全球气候变化的理想区域。TL剖面磁化率、粒度和地球化学元素氧化物及其比值变化分析表明：中晚全新世研究区气候极不稳定，可以大致划分为：① 6.0～4.2 ka BP，气候暖湿，夏季风逐渐增强，并占据主导，冬季风较弱，与全新世大暖期对应，但存在百年尺度的气候波动，其中：6.0～5.6 ka BP，5.5～5.4 ka BP，4.9～4.7 ka BP，4.5～4.2 ka BP气候暖湿；5.6～5.5 ka BP，5.4～4.9 ka BP，4.7～4.5 ka BP气候相对冷干。② 4.2～1.3 ka BP，气候相对暖湿，与上一阶段相比夏季风有所减弱，其间也存在次一级波动，4.2～3.63 ka BP，3.57～3.4 ka BP气候相对干冷；3.63～3.57 ka BP，3.4～1.3 ka BP，气候相对暖湿。③ 1.3～0.65 ka BP以来，气候波动频繁，后期有向暖湿发展的趋势。这些气候变化与区域和全球变化具有良好的对应关系，反映该区气候变化与全球气候变化具有高度一致性。
- 科尔沁沙地 /
- 地球化学元素 /
- 气候变化
Abstract: The Horqin desert, intensely influenced by East Asian monsoon, is located in the desert-loess boundary belt and agricultural and animal husbandry interlaced zone in North China. The geographic setting suggests that the Horqin desert is very sensitive to the global climatic change, so it is an ideal zone for studying the response of global climatic change. Analysis on magnetic susceptibility, grain size and oxides and ratios of chemical elements from TL profile during the middle and late Holocene indicates that the regional climate is very unstable, which is classified into the following phases: ① From 6.0 ka BP to 4.2 ka BP, the summer monsoonal strength is continuously increased and dominated this region, the warm and humid climate is corresponding to the Holocene thermal maximum period, but exists climatic fluctuation on centennial scale, accompanying with weaker winter monsoon. During this period, the climate is warm and humid in 6.0~5.6 ka BP, 5.5~5.4 ka BP, 4.9~4.7 ka BP, 4.5~4.2 ka BP while it is relatively cold and dry in 5.6~5.5 ka BP, 5.4~4.9 ka BP, 4.7~4.5 ka BP. ② From 4.2 ka BP to 1.3 ka BP, compared with the former phase, the regional climate becomes relatively warm and humid but have smaller fluctuations, accompanying with the declined summer monsoonal strength. The climate is dominated by cold and dry in 4.2~3.63 ka BP, 3.57~3.4 ka BP while it is relatively warm and humid in 3.63~3.57 ka BP, 3.4~1.3 ka BP. ③ From 1.3 ka BP to 0.65 ka BP, the regional climate is frequently fluctuated and tends to warm and humid in the later stage. These climatic changes in Horqin desert are very coincident with the regional and global climatic change, reflecting the obvious consistency between them.
- Horqin desert /
- geochemical element /
- climatic change

HTML全文

参考文献(0)

[1]	吴小力, 李荣西, 李小刚, 赵帮胜, 刘福田, 覃小丽, 赵迪, 刘齐, 张艳妮. 青藏高原东北缘宁南盆地晚古近纪气候变化及其驱动机制 . 沉积学报, 2023, 41(1): 206-218. doi: 10.14027/j.issn.1000-0550.2021.082
[2]	白亚之, 乔淑卿, 吴斌, 胡利民, 王楠, 范德江, 杨刚, 石学法. 泰国湾百年来有机碳埋藏记录及环境响应 . 沉积学报, 2022, 40(2): 484-493. doi: 10.14027/j.issn.1000-0550.2021.033
[3]	陈渠, 刘秀铭, 吕镔, 叶玮, 赵国永. 天山北麓黄土记录的30万年以来古气候演变 . 沉积学报, 2022, 40(3): 679-690. doi: 10.14027/j.issn.1000-0550.2021.064
[4]	邹灏, 李峤昕, 陈安清, 肖斌, 蒋修未, 黄长成, 胡成辉, 李蝶. 新元古代“雪球地球”形成与消融及华南板块的记录 . 沉积学报, 2022, 40(4): 1043-1058. doi: 10.14027/j.issn.1000-0550.2021.019
[5]	龚承林, 齐昆, 徐杰, 刘喜停, 王英民. 深水源—汇系统对多尺度气候变化的过程响应与反馈机制 . 沉积学报, 2021, 39(1): 231-252. doi: 10.14027/j.issn.1000-0550.2020.035
[6]	高小雪, 韩瑞辰, 范虎童, 王永波, 赵艳, 沈吉, 刘兴起, 汪勇. 云南北海湿地沉积物记录的过去2050年气候演化及对区域人类文明的影响 . 沉积学报, 2020, 38(5): 1016-1025. doi: 10.14027/j.issn.1000-0550.2019.100
[7]	王兆夺, 黄春长, 庞奖励, 刘安娜, 周亚利, 查小春. 甘肃庄浪全新世黄土土壤物源分析及古气候恢复重建 . 沉积学报, 2020, 38(4): 781-789. doi: 10.14027/j.issn.1000-0550.2019.077
[8]	张文桐, 庞奖励, 黄春长, 周亚利, 查小春, 崔天宇, 王海燕, 杨丹. 汉江上游庹家湾剖面化学风化特征及其意义 . 沉积学报, 2017, 35(3): 508-515. doi: 10.14027/j.cnki.cjxb.2017.03.009
[9]	李小妹, 严平, 吴伟, 钱瑶. 中国北方三流域河流—沙漠过渡带地表沉积物化学元素空间差异分析 . 沉积学报, 2016, 34(4): 615-625. doi: 10.14027/j.cnki.cjxb.2016.04.001
[10]	. 青藏高原纳木错湖近150年来气候变化的湖泊沉积记录 . 沉积学报, 2014, 32(4): 669-676.
[11]	. 海岸沙丘表面现代风成沙地球化学元素分异的典型研究——以河北昌黎黄金海岸横向沙脊为例 . 沉积学报, 2012, 30(4): 724-730.
[12]	. 中亚昭苏黄土剖面粒度记录的末次冰期以来气候变化历史 . 沉积学报, 2011, 29(6): 1170-1179.
[13]	高军平. 柴西西岔沟新近系磁组构特征对环境变化的响应 . 沉积学报, 2009, 27(1): 128-136.
[14]	陶明华. 旋回性沉积序列的形成机理分析 . 沉积学报, 2007, 25(4): 505-510.
[15]	李明慧. 青藏高原秋里南木湖原生硼砂、芒硝韵律层的发现及气候环境意义 . 沉积学报, 2007, 25(4): 619-625.
[16]	赵景波李胜利. 西安高陵马坊滩渭河洪水变化研究 . 沉积学报, 2006, 24(06): 857-863.
[17]	陈萍, 何报寅, 杜耘, Kunihiko Endo, 杨汉东. 1200a来洪湖演变的环境磁学记录 . 沉积学报, 2005, 23(1): 138-142.
[18]	宋春晖, 白晋锋, 赵彦德, 金洪波, 孟庆泉. 临夏盆地13～4.4Ma湖相沉积物颜色记录的气候变化探讨 . 沉积学报, 2005, 23(3): 507-513.
[19]	唐松, 邵磊, 赵泉鸿. 南海渐新世以来粘土矿物的演变特征及意义 . 沉积学报, 2004, 22(2): 337-342.
[20]	秦作栋, 冯起. 塔克拉玛干沙漠北部平原区全新世沉积与气候变化的关系——以肖塘剖面为例 . 沉积学报, 1997, 15(1): 168-171.

施引文献

资源附件(0)

访问统计

点击查看大图

计量

文章访问数: 2101
HTML全文浏览量: 14
PDF下载量: 642
被引次数: 0

中晚全新世科尔沁沙地沉积物化学特征及其气候变化

刊出日期: 2012-06-10

中图分类号: P512.2

关键词:

科尔沁沙地 /

地球化学元素 /

气候变化

摘要: 科尔沁沙地位于我国沙漠—黄土边界带和北方农牧交错带，深受东亚季风的影响，对全球气候变化反应非常敏感，是研究全球气候变化的理想区域。TL剖面磁化率、粒度和地球化学元素氧化物及其比值变化分析表明：中晚全新世研究区气候极不稳定，可以大致划分为：① 6.0～4.2 ka BP，气候暖湿，夏季风逐渐增强，并占据主导，冬季风较弱，与全新世大暖期对应，但存在百年尺度的气候波动，其中：6.0～5.6 ka BP，5.5～5.4 ka BP，4.9～4.7 ka BP，4.5～4.2 ka BP气候暖湿；5.6～5.5 ka BP，5.4～4.9 ka BP，4.7～4.5 ka BP气候相对冷干。② 4.2～1.3 ka BP，气候相对暖湿，与上一阶段相比夏季风有所减弱，其间也存在次一级波动，4.2～3.63 ka BP，3.57～3.4 ka BP气候相对干冷；3.63～3.57 ka BP，3.4～1.3 ka BP，气候相对暖湿。③ 1.3～0.65 ka BP以来，气候波动频繁，后期有向暖湿发展的趋势。这些气候变化与区域和全球变化具有良好的对应关系，反映该区气候变化与全球气候变化具有高度一致性。

Chemical Characteristics of Sediments in Horqin Desert and Climatic Change during the Middle and Late Holocene

Publish Date: 2012-06-10

Keywords:

Abstract: The Horqin desert, intensely influenced by East Asian monsoon, is located in the desert-loess boundary belt and agricultural and animal husbandry interlaced zone in North China. The geographic setting suggests that the Horqin desert is very sensitive to the global climatic change, so it is an ideal zone for studying the response of global climatic change. Analysis on magnetic susceptibility, grain size and oxides and ratios of chemical elements from TL profile during the middle and late Holocene indicates that the regional climate is very unstable, which is classified into the following phases: ① From 6.0 ka BP to 4.2 ka BP, the summer monsoonal strength is continuously increased and dominated this region, the warm and humid climate is corresponding to the Holocene thermal maximum period, but exists climatic fluctuation on centennial scale, accompanying with weaker winter monsoon. During this period, the climate is warm and humid in 6.0~5.6 ka BP, 5.5~5.4 ka BP, 4.9~4.7 ka BP, 4.5~4.2 ka BP while it is relatively cold and dry in 5.6~5.5 ka BP, 5.4~4.9 ka BP, 4.7~4.5 ka BP. ② From 4.2 ka BP to 1.3 ka BP, compared with the former phase, the regional climate becomes relatively warm and humid but have smaller fluctuations, accompanying with the declined summer monsoonal strength. The climate is dominated by cold and dry in 4.2~3.63 ka BP, 3.57~3.4 ka BP while it is relatively warm and humid in 3.63~3.57 ka BP, 3.4~1.3 ka BP. ③ From 1.3 ka BP to 0.65 ka BP, the regional climate is frequently fluctuated and tends to warm and humid in the later stage. These climatic changes in Horqin desert are very coincident with the regional and global climatic change, reflecting the obvious consistency between them.

留言板

中晚全新世科尔沁沙地沉积物化学特征及其气候变化

计量

Chemical Characteristics of Sediments in Horqin Desert and Climatic Change during the Middle and Late Holocene

计量

目录

中晚全新世科尔沁沙地沉积物化学特征及其气候变化

English Abstract

Chemical Characteristics of Sediments in Horqin Desert and Climatic Change during the Middle and Late Holocene

全文HTML

目录

友情链接

期刊在线

联系我们

留言板

中晚全新世科尔沁沙地沉积物化学特征及其气候变化

计量

出版历程

Chemical Characteristics of Sediments in Horqin Desert and Climatic Change during the Middle and Late Holocene

计量

出版历程

目录

中晚全新世科尔沁沙地沉积物化学特征及其气候变化

English Abstract

Chemical Characteristics of Sediments in Horqin Desert and Climatic Change during the Middle and Late Holocene

全文HTML

目录

友情链接

期刊在线

联系我们