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| Environment Patterns and Vegetation Succession of Typical Extreme Periods in Northern China and Its Significance on Eco-environmental Construction |
| Qin Xiaoguang,Liu Tungsheng,Cai Binggui,Lu Houyuan |
| Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China |
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Abstract In recent years, more eco-environmental problems occur in China due to rapid economy development. The recovery and reconstruction of eco-environment has in turn become an important issue. It is known that the local land-form, soil and vegetation types, and climatic conditions are widely used to determine the environment governing rules and management steps for different regions. In order to ensure the eco-environmental reconstruction adaptable to climatic change, the maximum tolerant ability of ecosystem can be estimated by analyzing the best and the most inclement climatic situations that would occur. In this paper, the environment of the last glacial maximum and the Holocene optimum period are studied as the last patterns of the best and the severest conditions. The vegetation succession belts of Northern China are analyzed. The two types of each vegetation succession belt can be regarded as two extreme vegetation types of this area. Therefore, the vegetation succession belts provide a referenced limit of the eco-environmental recovery.
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Received: 25 June 2003
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