Arid
DOI10.1177/0959683617744268
Holocene Artemisia-Chenopodiaceae-dominated grassland in North China: Real or imaginary?
Li, Nannan1,2; Sack, Dorothy3; Gao, Guizai1; Liu, Lidan1; Li, Dehui1; Yang, Xiuyun1; Jie, Dongmei1,2,4,5; Liu, Hongyan1; Shi, Jichen1; Leng, Chengcheng1
通讯作者Jie, Dongmei
来源期刊HOLOCENE
ISSN0959-6836
EISSN1477-0911
出版年2018
卷号28期号:5页码:834-841
英文摘要

The Songnen grasslands were traditionally thought to be dominated by Artemisia and Chenopodiaceae plants as early as the late Pleistocene. However, increasing evidence has called that interpretation into question. To shed new light on the paleovegetation evolution of the arid and semi-arid steppe in North China, phytolith assemblages preserved in the region’s sand-paleosol sequence (section Daike) are used as a proxy for paleovegetation structure. Results show that both the sand and paleosol layers in the Songnen grassland sections contain well-preserved phytoliths attributed to different families of grass. This is the first direct evidence of the nature of the vegetation that existed during the sandy layer episodes. Moreover, the phytolith evidence represented in the samples indicates that plant successions happened within the subfamilies of Poaceae through the time. Referring to phytoliths in modern plants and topsoils, and using statistical analyses, we propose that phytolith assemblages in the section Daike originated from Poaceae-dominant communities rather than an Artemisia-Chenopodiaceae ecosystem. The phytoliths, and evidence from the historical and modern pollen-vegetation relationships, lead to rejection of the hypothesis of a past widespread Artemisia-Chenopodiaceae ecosystem in the Songnen grasslands. Using published radiocarbon and thermoluminescence data, it is proposed that the present Poaceae-dominated grasslands developed as early as the early Holocene. This study also highlights the usefulness of phytolith analysis in paleovegetation reconstruction in arid and semi-arid lands.


英文关键词grasslands Holocene North China paleosol paleovegetation phytolith
类型Article
语种英语
国家Peoples R China ; USA
收录类别SCI-E ; SSCI
WOS记录号WOS:000432240500013
WOS关键词PAST ENVIRONMENTAL-CONDITIONS ; PHYTOLITH ASSEMBLAGES ; PALEOENVIRONMENTAL INDICATORS ; QUANTITATIVE INDICATORS ; CARBON STORAGE ; CLIMATE-CHANGE ; VEGETATION ; POLLEN ; STEPPE ; RECONSTRUCTION
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向Physical Geography ; Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/209825
作者单位1.Northeast Normal Univ, Sch Geog Sci, Changchun 130024, Jilin, Peoples R China;
2.Shandong Univ Sci & Technol, Coll Geol Sci & Engn, Shandong Prov Key Lab Deposit Mineralizat & Sedim, Qingdao, Peoples R China;
3.Ohio Univ, Dept Geog, Athens, OH 45701 USA;
4.Minist Environm Protect, Key Lab Wetland Ecol & Vegetat Restorat, Beijing, Peoples R China;
5.Minist Educ, Key Lab Vegetat Ecol, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Li, Nannan,Sack, Dorothy,Gao, Guizai,et al. Holocene Artemisia-Chenopodiaceae-dominated grassland in North China: Real or imaginary?[J],2018,28(5):834-841.
APA Li, Nannan.,Sack, Dorothy.,Gao, Guizai.,Liu, Lidan.,Li, Dehui.,...&Leng, Chengcheng.(2018).Holocene Artemisia-Chenopodiaceae-dominated grassland in North China: Real or imaginary?.HOLOCENE,28(5),834-841.
MLA Li, Nannan,et al."Holocene Artemisia-Chenopodiaceae-dominated grassland in North China: Real or imaginary?".HOLOCENE 28.5(2018):834-841.
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