干旱区生态环境知识资源中心(Arid): 陇中黄土高原末次冰盛期以来的植被演替及其气候响应

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	陇中黄土高原末次冰盛期以来的植被演替及其气候响应
其他题名	Vegetation succession and its response to climate changes since the Last Glacial Maximum on the Loess Plateau of Central Gansu,Northwest China
	仵慧宁; 张彩霞; 赵海阔; 张垒垒; 赵莉
来源期刊	生态学杂志
ISSN	1000-4890
出版年	2020
卷号	39 期号:8 页码:2488-2500
中文摘要	末次冰盛期以来,地球系统经历了一次从冷到暖完整的气候旋回,是过去全球变化研究的一个重要时段。本文基于陇中黄土高原会宁硝沟剖面河湖相-水下黄土沉积序列的高分辨率地层孢粉记录,探讨该区末次冰盛期以来的植被演替及其气候响应模式,旨在为黄土高原生态环境建设的战略部署提供科学依据,且对进一步探讨区域气候演化机制、预测未来气候环境变化趋势具有重要意义。硝沟剖面的孢粉记录揭示,末次冰盛期以来该区的植被演替过程为:荒漠草原(寒冷的盛冰期)针叶疏林/森林草原(逐渐增温的冰消期)针阔叶混交林为主的森林草原针阔叶混交林(温暖的盛间冰期)针叶疏林草原干草原/荒漠草原;相应的气候变化模式为:冷干较温湿较暖湿暖湿温凉偏干较冷干。总体来看,末次冰盛期以来,研究区植被对气候环境变化的响应非常敏感,随着气候的冷暖干湿变化,森林/疏林草原带自东南-西北发生多次进退;区域顶极植物群落为中全新世气候最适宜期发育的针阔叶混交林,研究区早中全新世较长时期都有较大面积的针阔叶混交林发育;晚全新世植被退化为干草原/荒漠草原,一方面可能是气候持续变干的自然响应,另一方面可能也与此时强烈的人类活动对自然森林/草原植被的破坏导致的恶性循环有关。
英文摘要	The Earth experienced an integrated climate cycle from cold to warm since the Last Glacial Maximum(LGM),which is a key period in the previous global change research.This study focused on vegetation succession and its climate response pattern since the LGM to provide scientific basis for the strategic deployment of ecological environment construction on the Loess Plateau,by utilizing the high-resolution pollen records of fluvial and lacustrine-subaqueous loess sedimentary sequence of the Huining XG section from the Loess Plateau in the Central Gansu.Results from this study are significant for the further investigation of regional climate change mechanisms,as well as prediction of future climate change.The pollen records from the XG section revealed that vegetation succession in the Loess Plateau of Central Gansu since the LGM could be:desert steppe(the cold glacial maximum epoch)coniferous sparse forest/forest steppeforest steppe dominated by coniferous broadleaved mixed forestconiferous broadleaved mixed forest(the warm inter-maximum glacial epoch)coniferous sparse forest steppesteppe/desert steppe.The corresponding climate response pattern could be:cold and dryrelatively warm and humidrelatively warmer and wetmost warm and wetcool but slant dryrelatively cold and dry.Overall,the forest/sparse forest steppe zone in the study area has been advanced and retreated many times from southeast to northwest since the LGM,along with the changes of climate in cold or warm and dry or humid.The climax community of regional vegetation is coniferous broadleaved mixed forest,which developed under the suitable climate period of Middle Holocene.A large area of coniferous broadleaved mixed forest also developed in a long term during the Early and Middle Holocene.During Late Holocene,vegetation degenerated into steppe/desert steppe,which may be attributed to the natural response of continuous climate drying or could be a result of the vicious circle caused by the anthropogenic destruction of natural forest and grassland vegetation.
中文关键词	末次冰盛期 ; 末次冰消期 ; 全新世 ; 孢粉记录 ; 植被演替 ; 黄土高原
英文关键词	Last Glacial Maximum Last Deglaciation Holocene pollen record vegetation succession Loess Plateau
类型	Article
语种	中文
收录类别	CSCD
WOS研究方向	Geology
CSCD记录号	CSCD:6778296
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336762
作者单位	仵慧宁, 兰州城市学院培黎石油工程学院, 兰州, 甘肃 730070, 中国.; 张彩霞, 兰州城市学院培黎石油工程学院, 兰州, 甘肃 730070, 中国.; 赵海阔, 兰州城市学院培黎石油工程学院, 兰州, 甘肃 730070, 中国.; 张垒垒, 兰州城市学院培黎石油工程学院, 兰州, 甘肃 730070, 中国.; 赵莉, 兰州城市学院培黎石油工程学院, 兰州, 甘肃 730070, 中国.
推荐引用方式 GB/T 7714	仵慧宁,张彩霞,赵海阔,等. 陇中黄土高原末次冰盛期以来的植被演替及其气候响应[J],2020,39(8):2488-2500.
APA	仵慧宁,张彩霞,赵海阔,张垒垒,&赵莉.(2020).陇中黄土高原末次冰盛期以来的植被演替及其气候响应.生态学杂志,39(8),2488-2500.
MLA	仵慧宁,et al."陇中黄土高原末次冰盛期以来的植被演替及其气候响应".生态学杂志 39.8(2020):2488-2500.