干旱区生态环境知识资源中心(Arid): Human activities have altered fire-climate relations in arid Central Asia since ~1000 a BP: evidence from a 4200-year-old sedimentary archive

Arid

	Human activities have altered fire-climate relations in arid Central Asia since ~1000 a BP: evidence from a 4200-year-old sedimentary archive
其他题名	人类活动改变了中亚1000年以来的火-气候关系:来自4200年的沉积物记录
	Zhang Shanjia; Lu Yiwen; Wei Wenyu; Qiu Menghan; Dong Guanghui; Liu Xingqi
来源期刊	科学通报
ISSN	2095-9273
出版年	2021
卷号	66 期号:8 页码:2095-9273
中文摘要	火灾深刻地影响着人类的生产生活.中亚地区对气候变化响应敏感且有着悠久的放牧活动历史,然而由于缺乏高分辨率的火灾记录,该地区长时间尺度的火-气候-人类活动间的关系仍不清楚.本文通过对新疆卡拉库里湖泊(38.439°N,75.057°E; 3645 masl)沉积物中的黑碳含量分析,重建了该地区首条高分辨率(~20年)的晚全新世火灾记录.综合古气候记录对比分析表明,4200~1000 a BP,在年代际、百年际和千年际尺度上,湿润期对应火灾多发期;1000 a BP以来,在百年际和千年际尺度上,湿润期对应火灾少发期.我们认为,中亚地区草原火灾的变化受控于湿度所影响的植被载荷的变化,而人类活动(如牧业和农业)很可能通过减少地表生物量而抑制了近1000年来的火灾活动,打破了长期以来气候控制火灾变化的模式.本研究对以草原为主的中亚地区火-气候-人类活动之间的相互作用提供了有益的认知,有助于未来火灾管理政策的制定.
英文摘要	Fire has crucial effects on ecosystem succession, the carbon cycle, and atmospheric chemical composition [1-3].Previous studies have shown that fire dynamics are closely related to regional vegetation and climate.Arid Central Asia(ACA) is sensitive to climate change, and grassland fires in ACA account for over 80% of the total burned area [4].In the face of intense global climate change, it is vital to understand how grassland burning responds long-term to climate and vegetation.Developing such an understanding would help predict fire activity and thus assist in the development of future fire management policies.
类型	Article
语种	英语
国家	中国
开放获取类型	Bronze
收录类别	CSCD
WOS类目	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:6980827
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/365145
作者单位	Zhang Shanjia, College of Earth & Environmental Sciences, Lanzhou University, Lanzhou, Gansu 730000, China.; Lu Yiwen, College of Earth & Environmental Sciences, Lanzhou University, Lanzhou, Gansu 730000, China.; Wei Wenyu, College of Earth & Environmental Sciences, Lanzhou University, Lanzhou, Gansu 730000, China.; Qiu Menghan, College of Earth & Environmental Sciences, Lanzhou University, Lanzhou, Gansu 730000, China.; Dong Guanghui, College of Earth & Environmental Sciences, Lanzhou University;;Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, ;;Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Lanzhou;;, ;;Beijing 730000;;100101.; Liu Xingqi, College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China.
推荐引用方式 GB/T 7714	Zhang Shanjia,Lu Yiwen,Wei Wenyu,et al. Human activities have altered fire-climate relations in arid Central Asia since ~1000 a BP: evidence from a 4200-year-old sedimentary archive[J],2021,66(8):2095-9273.
APA	Zhang Shanjia,Lu Yiwen,Wei Wenyu,Qiu Menghan,Dong Guanghui,&Liu Xingqi.(2021).Human activities have altered fire-climate relations in arid Central Asia since ~1000 a BP: evidence from a 4200-year-old sedimentary archive.科学通报,66(8),2095-9273.
MLA	Zhang Shanjia,et al."Human activities have altered fire-climate relations in arid Central Asia since ~1000 a BP: evidence from a 4200-year-old sedimentary archive".科学通报 66.8(2021):2095-9273.