气候变化领域集成服务门户(CCPortal): Anthropogenic and climatic-driven peatland degradation during the past 150 years in the Greater Khingan Mountains, NE China

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DOI	10.1002/ldr.4036
	Anthropogenic and climatic-driven peatland degradation during the past 150 years in the Greater Khingan Mountains, NE China
	Han, Dongxue; Gao, Chuanyu; Liu, Hanxiang; Li, Yunhui; Cong, Jinxin; Yu, Xiaofei; Wang, Guoping
通讯作者	Wang, GP (通讯作者)
发表日期	2021
ISSN	1085-3278
EISSN	1099-145X
起始页码	4845
结束页码	4857
卷号	32 期号:17
英文摘要	Relationships between modern pollen, climate, and human activities are important for improving the explanation of fossil records. To better understand anthropogenic and climatic impact on peatland vegetation and environment, we assessed the impact of the human influence index (HII) on modern pollen assemblages from 61 surface soil samples (different land-use types) in the Greater Khingan Mountains by using detrended correspondence analysis and redundancy analysis. Based on the palynological analysis, Pb-210 age-depth model, and weighted averaging partial least squares, we reconstructed HII values of Tuqiang peatland in the Greater Khingan Mountains during the last 150 years. The reconstructed HII values demonstrated that the intensity of human activities increased gradually before 1900 AD, when the population of Heilongjiang Province was less and its native inhabitants continued to hunt and gather. During the period of 1900-1950 AD, human influence intensity increased sharply and reached peak values. Wars and placer gold mining caused large numbers of people immigrated north to Heilongjiang Province, rapid population growth strengthened the human impact intensity. In addition, invaders exploited the forest resources without limit. Widescale deforestation and land reclamation destroyed vegetation landscape and reduced forest coverage seriously, which led to soil erosion and land degradation. With the foundation of new China (1949 AD), the implementation of forest protection policies clearly reduced the human disturbance intensity. However, due to the needs of economic development, human influence intensity increased again after 2000 AD.
关键词	SURFACE POLLEN ASSEMBLAGES HOLOCENE VEGETATION QUANTITATIVE RECONSTRUCTION NORTHERN CHINA LAST DYNAMICS RECORD BASIN PLAIN
英文关键词	Human Influence Index; land use; peatland degradation; pollen; quantitative reconstruction
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
WOS类目	Environmental Sciences ; Soil Science
WOS记录号	WOS:000704533400001
来源期刊	LAND DEGRADATION & DEVELOPMENT
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260168
推荐引用方式 GB/T 7714	Han, Dongxue,Gao, Chuanyu,Liu, Hanxiang,et al. Anthropogenic and climatic-driven peatland degradation during the past 150 years in the Greater Khingan Mountains, NE China[J]. 中国科学院青藏高原研究所,2021,32(17).
APA	Han, Dongxue.,Gao, Chuanyu.,Liu, Hanxiang.,Li, Yunhui.,Cong, Jinxin.,...&Wang, Guoping.(2021).Anthropogenic and climatic-driven peatland degradation during the past 150 years in the Greater Khingan Mountains, NE China.LAND DEGRADATION & DEVELOPMENT,32(17).
MLA	Han, Dongxue,et al."Anthropogenic and climatic-driven peatland degradation during the past 150 years in the Greater Khingan Mountains, NE China".LAND DEGRADATION & DEVELOPMENT 32.17(2021).