| 10世纪末西辽河流域沙漠化的突进及其原因 |
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| 引用本文： | 王守春.10世纪末西辽河流域沙漠化的突进及其原因[J].中国沙漠,2000,20(3):238-242. |
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| 作者姓名： | 王守春 |
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| 作者单位： | 中国科学院,地理科学和资源研究所,北京,100101 |
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| 基金项目： | 国家自然科学基金!( 4 983 10 80 ) |
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| 摘 要： | 西辽河流域在辽代早期和辽代之前，是自然环境较好的“辽泽”，其自然景观为面积广大的平沙地，其上生长乔木、灌木和草本，为疏体草原，还有较大面积的下温地和较多湖泊，没有出现流少丘。在１１世纪期间的文献中，记载了西中流域有明显的沙漠化表现。１０世纪末西辽河流域环境可能出现突变，是历史时期西辽河流域沙漠化的开始时间。沙漠化的原因，主要为自然原因，即发修变化。
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| 关 键 词： | 西辽河流域 辽代 沙漠化 环境变迁 |
| 修稿时间： | : |
Fastly Development and Causes of Desertification in West Liao River Basin of Inner Mongolia during the Later 10 Century |
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| WANG Shou-chun.Fastly Development and Causes of Desertification in West Liao River Basin of Inner Mongolia during the Later 10 Century[J].Journal of Desert Research,2000,20(3):238-242. |
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| Authors: | WANG Shou-chun |
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| Abstract: | The main part of the plain formed by west Liao river in the east of Inner Mongolia Autonomous Region is occupied by the famous Korqin desert today. But Qi Dan nation rose and established very strong Liao Dynasty in the west Liao river basin and controlled almost the north of China during 10 Century, thus left a lot of historical writings(historical books and travels) and ruins. These historical materials contain a lot of information on natural environment. The historical records and environmental archeology showed that the environment of west Liao river basin was fairly advantageous, and the landscape of this basin was plat sand land covered by grass and sparse woods such as some species of elms, willow and apricot, and there were vast marshland grasslands and many lakes before 1000 A.D.. And this superior environment provided favorable condition for rising of Qi Dan nation. These historical records also showed that the environment of west Liao river basin was some worsening at the beginning of 11 Century. Sand dunes were recorded on different part of the basin by several travelers and historical books. The changes of environment and desertification were shown more clearly. The desertification appeared at the end of 10 Century according to these historical records, and the cause of desertification was that the cold north west wind from Mongolia plateau was strengthened and climate tended to dry. The role of human activities on desertification was the second and locally in the middle ages, but this role was incorrectly emphasized by some researchers as the first position in the early desertification process of Korqin desert, in fact human activities in desertification of Korqin desert have played a important role mainly in recent 300 a. |
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| Keywords: | west Liao river basin Liao Dynasty desertification environmental changes |
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