Full
WU Shenghe,born in 1963,is a professor and Ph.D. supervisor of China University of Petroleum(Beijing). He is mainly engaged in teaching and research on palaeogeography and sedimentology,reservoir geology,and 3D geological modeling. E-mail: reser@cup.edu.cn.
Outline
Palaeogeographic units on the Earth’s surface exhibit a hierarchical structure,however,their connotations,research significance,reconstruction scales,and methodologies remain unclear,hindering the coordinated development of palaeogeography. Each palaeogeographic unit is a palaeogeographic unit with specific climatic,hydrological,and ecological characteristics. Based on the relative size and formation of landforms,palaeogeographic units are divided into three levels: large,medium,and small,correspondingly classifying palaeogeographic research scales into three levels. Large-scale palaeogeographic research investigates the spatiotemporal distribution and multi-sphere interactions of large-scale palaeogeographic units(oceans,continents,and large-scale geomorphic undulations within them)over millions to tens of millions of years. This research is conducted globally and across tectonic plates(or basins),aiming to predict habitable Earth and prospective areas for mineral resources. Medium-scale palaeogeographic research focuses on the characteristics,distribution,evolution,and associated surface processes of medium-scale palaeogeographic units(geomorphic units between large-scale geomorphic undulations and sub-environments)within a large geomorphic unit(such as a basin). It operates on timescales of hundreds of thousands of years and serves to predict habitable region and guide mineral resource exploration. Small-scale palaeogeographic research examines the characteristics,distribution,changes,and corresponding small-scale surface processes of sub-/micro-environments within a sedimentary system. This research covers timescales of tens to hundreds of thousands of years and aims to predict human habitable locality and to evaluate and develop mineral resources. Future palaeogeography should further develop multi-information quantitative interpretation methods for multi-scale palaeogeographic parameters,innovate intelligent reconstruction technologies of multi-scale palaeogeography,deepen the understanding of the formation mechanisms across different scales,establish models that explain how palaeogeography controls mineral resource distribution at various scales,and enhance collaborative research on multi-scale palaeogeography.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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