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Arid Land Geography ›› 2002, Vol. 25 ›› Issue (2): 160-164.doi: 10.13826/j.cnki.cn65-1103/x.2002.02.013

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STUDY ON THE RELATIONSHIP BETWEEN THE VEGETATION CHANGE AND THE HUMAN ACTIVITIES IN THE GANSU-QINGHAI REGION DURING THE PERIOD FROM MID-TO LATE-HOLOCENE

AN Cheng-bang, CHEN Fa-hu   

  1. Resources and Environment College, Lanzhou University, Lanzhou 730000, China
  • Received:2001-05-11 Revised:2002-03-10 Published:2025-12-31

Abstract: A great attention has been paid to the influence of prehistoric human activities on environment. The Gansu- Qinghai region is one of the regions where the prehistoric culture was developed early in China. This paper discusses the relationship between the vegetation change and the human activities in this region during the period from mid-to late-Holocene based on the high-resolving-power spore-pollen data, archaeological studies and historical documents. It is considered that the vegetation in the region has been influenced by human activities since very early time. In the vegetation in the region the proportion of arbors has decreased in a fluctuation way since mid-Holocene. The vegetation was seriously impacted by the prehistoric agriculture during the period of 5, 0003, 000 a B. P. and it was restored slightly during the period of 3, 0002, 000 a B. P. The proportion of arbors in the vegetation has been sharply decreased with the increase of human activities since 2, 000 a B. P. It is considered that it should be paid a great care to rebuild the climate during the period from mid-to late-Holocene with pollen data.

Key words: Gansu-Qinghai region, mid-to late-Holocene, vegetation, human activity

CLC Number: 

  • P532