论文部分内容阅读
由中国科学院南京地理与湖泊研究所王苏民、吉磊等著作的《呼伦湖古湖泊学研究》一书,将于1995年底由中国科学技术大学出版社出版发行。 全书除前言外,共分四章。第一章概述了呼伦湖区的自然环境状况,简要地介绍了呼伦湖盆地形成的格架和气候水文特点。第二章从水化学、水生物和表层沉积物的理化特性阐述了湖泊现代过程的特点。第三章以年代学为骨架,根据磁性参数、孢粉组合、硅藻种群、地球化学和粘土矿物的分析,重建了三万年以来气候、环境演化的阶段与过程,定量地恢复了古温度和古降水。第四章论述了呼伦湖环境演化的区域特点,并与邻区进行对比,分析了造成区域气候特点的原因,最后对历史时期环境波动及近期湖面扩张,从水量平衡的角度进行了探讨。全书共20多万文字,插图近50幅。
By the Chinese Academy of Sciences Nanjing Institute of Geography and Limnology Wangsu Min, Ji Lei and other works of “ancient Hulun Lake research” will be published by the end of 1995 by the University of Science and Technology Press. Except the foreword, the book is divided into four chapters. The first chapter gives an overview of the natural environment in the Hulun Lake area, and briefly introduces the grid and climate and hydrology features of the Hulun Lake Basin. The second chapter expounds the characteristics of the modern process of lakes from the physical and chemical characteristics of water chemistry, aquatic organisms and surface sediments. Based on chronology, the third chapter rebuilds the stage and process of climate and environmental evolution since 30,000 years based on the analysis of magnetic parameters, sporopollen assemblages, diatom population, geochemistry and clay minerals, and quantitatively restores the ancient temperature And ancient precipitation. The fourth chapter discusses the regional characteristics of Hulun Lake’s environmental evolution and contrasts with the neighboring areas, analyzes the causes of regional climate characteristics, and finally discusses the environmental fluctuations in the historical period and the recent lake expansion, from the perspective of water balance. The book a total of more than 200000 words, nearly 50 illustrations.