中生代化石森林的高精度重建：方法、进展与展望

A HIGH-RESOLUTION RECONSTRUCTION OF MESOZOIC FOSSIL FORESTS:APPROACHES,PROGRESSES,AND PERSPECTIVES

木化石对于重建地史时期陆地森林生态系统以及恢复古生态环境和古气候具有重要意义。近20年来,国内外在中生代木化石森林重建的理论创新及实践研究方面已有一系列积累并取得了重要进展,为地史时期古森林群落的重建提供了依据。文中重点介绍高精度化石森林重建的方法,包括野外信息采集、后期数据处理及软件运用等,并基于四川、重庆及新疆等地侏罗系中保存完好的木化石,开展高精度化石森林重建,揭示和重建侏罗纪不同时期森林植被的总体面貌,进而推断和探究古气候变化以及古生态和古地理环境。

Fossil wood, representing up to 80% of the terrestrial forest ecosystem biomass and widely distributed, is an and is of great terrestrial forest paleoenvironment important part of plant fossils, significance for reconstructing ecosystems and paleoecology, and paleoclimate. In recent years, some theoretical innovation and practice investigations of fossil forest reconstruction have been made, and a series of progresses have been acquired which provided the basis for the reconstruction of forest community during Earth＇s history. Here, we mainly introduce the application of the method for reconstructing the fossil forest in the Mesozoic, including field survey, data processing and the application of software. Furthermore, the progress made in the reconstruction of Mesozoic fossil forest in the recent two decades is summarized. Based on well- preserved fossil woods, found in the Jurassic of a variety of localities in Sichuan, Chongqing and Xinjiang regions, reconstructing the fossil forest wi[I reveal the general aspects of vegetational development through different stages, and will be further helpful to infer and explore the paleoclimate, paleoenvironment and paleoecology.