img

Wechat

  • CN 62-1070/P
  • ISSN 1000-694X
  • Bimonthly 1981
Adv search

Evolution of Chemical Weathering Process since the Middle-Late Holocene in the Maqu Plateau

  • Hu Mengjun ,
  • Zuo Hailing ,
  • Pan Ninghui ,
  • Li Xiangfeng
Expand
  • College of Geography and Environment Science, Northwest Normal University, Lanzhou 730070, China

Received date: 2015-09-11

  Revised date: 2015-10-25

  Online published: 2016-05-20

Abstract

Based on the analysis of major elements, trace elements and geochemical weathering parameters about a representative loess-paleosoil-aeolian sediment profile in the southeast of Maqu Plateau, and combined with 14C dating, we discuss the chemical weathering process since the middle-late Holocene. Research results prove that: (1) Chemical activity of different geochemical elements in section showed obvious variability, the major elements such as Ca, Si and Na were migrated and leached, while the elements Fe and Mg were obviously enriched, the activity and migration of elements were followed by Ca >Si >Na >Al >K >Fe >Mg; the migration features of the major elements indicated that the profile completed the primary process of chemical weathering characterized by leaching of Ca and Na; During the chemical weathering process, trace elements such as Cu, Mn and Zn were obviously accumulated except Sr. (2) Based on the climate change process from cold-dry-cool-humid-cool-dry to warm-humid recorded by the typical geochemical elements and combined with chemical weathering parameters, the chemical weathering process in the Maqu Plateau since the middle-late Holocene can be divided into four stages. Before 3.8 ka BP, the regional chemical weathering was relatively weaker, while it was relatively stronger from 3.8 ka BP to 3.5 ka BP. During 3.5-1.6 ka BP, the chemical weathering degree obviously became weaker, since then the chemical weathering tended to be stronger.

Cite this article

Hu Mengjun , Zuo Hailing , Pan Ninghui , Li Xiangfeng . Evolution of Chemical Weathering Process since the Middle-Late Holocene in the Maqu Plateau[J]. Journal of Desert Research, 2016 , 36(3) : 623 -635 . DOI: 10.7522/j.issn.1000-694X.2015.00240

References

[1] 庞奖励,黄春长,刘安娜,等.黄土高原南部全新世黄土-古土壤序列若干元素分布特征及意义[J].第四纪研究,2007(3):357-364.
[2] 张威,董应巍,于洋,等.辽南黄土化学风化特点及其环境意义[J].海洋地质与第四纪研究,2013,33(5):163-171.
[3] 陈骏,安芷生,刘连文,等.最近2.5 Ma以来黄土高原风尘化学组成的变化与亚洲内陆的化学风化[J].中国科学(D辑):地球科学,2001,31(2):136-145.
[4] 文启忠.中国黄土地球化学[M].北京:科学出版社,1989.
[5] 刘安娜,庞奖励,黄春长,等.甘肃庄浪全新世黄土-古土壤序列元素分布特征及意义[J].地球化学,2006,35(4):333-345.
[6] 郭媛媛,莫多闻,毛龙江,等.澧阳平原岩板垱剖面地球化学特征与风化强度研究[J].地理科学,2013,33(3):335-341.
[7] 陈骏,季峻峰,仇纲,等.陕西洛川黄土化学风化程度的地球化学研究[J].中国科学(D辑):地球科学,1997,27(6):531-536.
[8] 田久胜,田新会,卡召加,等.甘肃省玛曲县1981-2010年气候变化动态[J].草原与草坪,2015,35(1):84-88.
[9] 韩海涛,朱小妮.气候变化与人类活动对玛曲地区生态环境的影响[J].中国沙漠,2007,27(4):608-612.
[10] 逯军峰,董治宝,胡光印,等.甘肃省玛曲县土地沙漠化发展及其成因分析[J].中国沙漠,2012,32(3):604-609.
[11] 陈文业,张瑾,戚登臣,等.黄河首曲-玛曲县高寒草甸沙化动态演化趋势及其驱动因子定量分析[J].草业学报,2013,22(2):11-21.
[12] 王庆辉,窦学成,龚大鑫,等.高寒牧区草地沙化问题研究-以玛曲草原为例[J].干旱区地理,2012,35(2):302-308.
[13] 李昌龙,徐先英,金红喜,等.玛曲高寒草甸沙化过程中群落结构与植物多样性[J].生态学报,2014,34(14):3953-3961.
[14] 胡光印,董治宝,王文丽,等.近30年玛曲县土地利用/覆盖变化检测[J].中国沙漠,2009,29(3):457-462.
[15] 王兮之,梁钊雄,周显辉,等.黄河源区玛曲县植被覆盖度及其气候变化研究[J].水土保持研究,2012,19(2):57-65.
[16] 马媛,黄翀,郑巍.玛曲县土地利用变化分析与预测[J].干旱区研究,2012,29(4):735-739.
[17] 王伟红.近10年甘肃玛曲县主要生态环境退化的遥感监测[J].安徽农业科学,2013,41(11):4967-4970.
[18] 郭铌,韩天虎,王静,等.玛曲退牧还草工程生态效果的遥感监测[J].中国沙漠,2010,30(1):154-160.
[19] 邹学勇.黄河上游玛曲地区晚全新世沙漠化[J].中国沙漠,1995,15(1):65-70.
[20] 杨爱丽.地化学元素揭示的中晚全新世以来玛曲高原的成壤环境演变[D].兰州:西北师范大学,2015.
[21] 张文丽.粒度和磁化率反映的中晚全新世以来玛曲高原的沙漠化演化[D].兰州:西北师范大学,2015.
[22] 胡梦珺,杨爱丽,张文丽.常量元素氧化物含量及其比值揭示的中晚全新世以来玛曲高原的环境演变[J].中国沙漠,2015,35(2):313-321.
[23] 李森,孙武,李孝泽,等.浑善达克沙地全新世沉积特征与环境演变[J].中国沙漠,1995,15(4):323-331.
[24] 胡梦珺.近32 ka年来青海湖周边土地沙漠化形成演变[D].兰州:西北师范大学,2012.
[25] 靳鹤龄,苏志珠,孙忠.浑善达克沙地全新世中晚期地层化学元素特征及其气候变化[J].中国沙漠,2003,23(4):366-371.
[26] 李徐生,杨达源,鹿化煜.皖南风尘堆积序列氧化物地球化学特征与古气候记录[J].海洋地质与第四纪地质,1999,19(4):75-82.
[27] Nesbitt H W,Young G M.Early Proterozoic climates and plate motions inferred from major element chemistry of lutites[J].Nature,1982,299(5885):715-717.
[28] McLennan S M.Weathering and global denudation[J].Journal of Geology,1993,101(2):295-303.
[29] 李徐生,韩志勇,杨守业,等.镇江下蜀土剖面的化学风化强度与元素迁移特征[J].地理学报,2007,62(11):1174-1184.
[30] 冯连君,储雪蕾,张启锐,等.化学蚀变指数(CIA)及其在新元古代碎屑岩中的应用[J].地学前缘,2003,10(4):539-544.
[31] 钟巍,李吉均,方小敏,等.临夏盆地王家山剖面沉积物地球化学元素特征与季风演化[J].海洋地质与第四纪地质,1997,17(4):55-61.
[32] Nesbitt H W,Markovics G,Price R C.Chemical processes affecting alkalis and alkaline earths during continental weathering[J].Geochemica ET Cosmochimica Acta,1980,44(11):1659-1666.
[33] 文启忠,刁桂仪,贾蓉芬,等.黄土剖面中古气候变化的地球化学记录[J].第四纪研究,1995(3):223-231.
[34] 杨红瑾,黄春长,庞奖励,等.宁夏长城塬全新世黄土-土壤剖面元素地球化学特征研究[J].地理科学,2010,30(1):134-140.
[35] 董光荣,高尚玉,金炯,等.青海共和盆地土地沙漠化与防治途径[M].北京:科学出版社,1993:10-35.
[36] 刘冰,靳鹤龄,孙忠,等.青藏高原东北部风成沉积微量元素揭示的全新世千年尺度气候变化[J].古地理学报,2013,15(3):423-433.
[37] 刘冰,靳鹤龄,孙忠,等.青藏高原东北部泥炭沉积粒度与元素记录的全新世千年尺度的气候变化[J].冰川冻土,2013,35(3):609-618.
[38] Dasch E J.Strontium isotopes in Weathering profiles,deep-sea sediment sand sedimentary rocks[J].Geochim Cosmochimacta,1969,33(12):1521-1552.
[39] 陈骏,汪永进,季峻峰,等.陕西洛川黄土剖面的Rb/Sr值及其气候地层学意义[J].第四纪研究,1999(4):350-356.
[40] 王丽娟,庞奖励,黄春长,等.甜水沟全新世黄土-古土壤序列风化程度及意义[J].地理科学进展,2011,30(3):379-384.
[41] 靳鹤龄,苏志珠,孙良英,等.浑善达克沙地全新世气候变化[J].科学通报,2004,49(15):1532-1536.
[42] 刘嘉麒,吕厚远,Negendank J,等.湖光岩玛珥湖全新世气候波动的周期性[J].科学通报,2000,45(11):1190-1195.
[43] Wu Y,Liicke A,Jin Z,et al.Holocene climate development on the central Tibetan Plateau:A Sedimentary record from Cuoe Lake[J].Palaeogeography,Palaeoclimatology,Palaeoecology,2006,234(2/4):328-340.
[44] Mischke S,Zhang C.Holocene cold events on the Tibetan Plateau[J].Global and Planetary Change,2010,72(3):155-163.
[45] 刘冰,靳鹤龄,孙忠,等.中晚全新世科尔沁沙地沉积物化学特征及其气候变化[J].沉积学报,2012,30(3):536-546.
[46] 侯甬坚,祝一志.历史记录提取的近5~2.7 ka黄河中下游平原重要气候事件及其环境意义[J].海洋地质与第四纪地质,2002,20(4):23-29.
[47] 高尚玉,哈斯,王贵勇,等.末次冰期以来中国季风区西北缘沙漠演化研究[J].第四纪研究,2001,21(1):66-71.
[48] David J R,Thornalley H E,mcCave I N.Holocene oscillations in temperature and salinity of the surface subpolar Northatlantic[J].Nature,2009,457(7230):711-714.
[49] 王绍武,朱锦红.全新世千年尺度气候振荡的年代学研究[J].气候变化研究进展,2005,1(4):157-160.
[50] 陈发虎,汪世兰,张维信,等.青海湖南岸全新世黄土剖面、气候信息及湖面升降探讨[J].地理科学,1991,11(1):76-100.
[51] 王绍武.全新世气候变化[M].北京:气象出版社,2011:1-283.
[52] Liu B,Jin H,Sun I,et al.Holocene climatic change revealed by aeolian deposits from the Gonghe Basin,northeastern Qing-hai-Tibetan Plateau[J].Quaternary International,2013,296:231-240.
[53] 翦知湣,孟翊.长江口区全新世古环境变化及其对黑潮变动的响应[J].海洋地质与第四纪地质,2002,22(3):77-82.
Outlines

/