武汉地区人类世的湖泊沉积指示

"人类世"(Anthropocene)概念是在人类活动引起的全球性环境问题日益突出的背景下提出的。人类世问题近年来已逐步成为环境、地球科学及其相关学科领域的一个研究热点。武汉位于长江中游,汉水与长江交汇之处,是中国中部地区的中心城市,也是全国重要的工业基地和综合交通枢纽,因此开展武汉地区的人类世界限研究对于指示人类活动在自然环境中可开展的安全活动空间具有重要的意义。以武汉市湖泊沉积物中有机氯农药(OCPs)、重金属元素(Zn、Cu、Pb、Hg、Cr)、总磷总氮和沉积色素的含量为标志,结合武汉城市化进程对武汉地区的人类世界限进行了研究。结果表明:武汉地区的人类世界限大概在1960年左右,此时人类活动在湖泊沉积物中留下了标志性的特征。

Indication of Lacustrine Sediments of the Anthropocene in Wuhan Area

The concept of"Anthropocene"is put forward against the background of increasingly prominent global environmental problems caused by human activities.In recent years,the problem of Anthropocene has gradually become a research hotspot in the field of environment,geoscience and related disciplines.Wuhan is located in the middle reaches of the Yangtze River,where the Hanjiang River meets the Yangtze River.It is the central city in Central China,and is also an important industrial base and comprehensive transportation hub in China.Therefore,it is of great significance to carry out the research on the human world limit in Wuhan area to indicate the safe space for human activities in the natural environment.Based on the contents of organochlorine pesticides(OCPs),heavy metal elements(Zn,Cu,Pb,Hg,Cr),total phosphorus,total nitrogen and sediment pigments in lake sediments of Wuhan City,this paper studies the human world limit of Wuhan area in combination with the urbanization process of Wuhan city.The results show that the human world limit in Wuhan area is about 1960,when human activities left a signature feature in lake sediments.