重建我国全新世以来火的时空演变趋势

Reconstruction of Temporal and Spatial Evolution Trend of Fire Since Holocene in China

火作为生态环境的干扰因素,是人类管理生态环境的古老手段。炭屑是生物质或化石燃料不完全燃烧所形成的含碳物质连续统一体,对全球碳循环和气候变化研究具有重要意义。本文通过统计分析我国全新世以来的31个陆相(湖泊)沉积物的炭屑记录(主要集中在我国中东部),运用ArcGis、SPSS等软件绘制火分布平面等值图,试图重建我国区域全新世以来的野火历史,这为我们理解火的时空变化趋势及其分布特征提供了一个有效的途径。

Fire,as an interference factor of ecological environment,is an ancient means of human managementof ecological environment.Carbon chip is a continuous entity of carbon containing materials formed byincomplete combustion of biomass or fossil fuel,which is of great significance to the study of global carboncycle and climate change.In this paper,through statistical analysis of 31 terrestrial(Lake)Sediment Carbondebris records since Holocene in China(mainly concentrated in the East and central China),using ArcGIS,sPSs and other software to draw the fire distribution plane isograms,trying to reconstruct the regional firehistory since Holocene in China,which provides an effective way for us to understand the temporal and spatialvariation trend and distribution characteristics of fire.