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作 者:李贵祥[1] 孟广涛[1] 方向京[1] 郭立群[1] 柴勇[1] 和丽萍[1] 张正海[1]
出 处:《长江流域资源与环境》2008年第1期51-56,共6页Resources and Environment in the Yangtze Basin
基 金:国家"十一五"林业科技支撑计划"天然林区人工林近自然化改造技术(2006BAD03A04-03)";"退化天然林生态系统干扰与恢复度评价技术体系(2006BAD03A04-01)"
摘 要:云南金沙江流域具有复杂的地形地貌,从地貌格局及气候系统差异上,可将该区域的森林植被类型分异划分为3个区,即西部高山峡谷区、中部中山峡谷和滇中高原区、东部中山山原峡谷区,不同的区域决定不同的植被类型,而典型的植被类型具有指示特定区域的作用。通过分析,把云南金沙江流域不同区域的植被特点、类型进行了阐述。对于该区域的植被恢复,特别是植被类型,是遵照自然规律的原则,保证恢复效果的重要举措。同时,对不同区域森林植被类型及不同区域森林植被垂直差异的论述,阐明了云南金沙江流域不同区域的顶极和亚顶极植物群落,为人工按"近自然化"的原则恢复森林植被提供了参考依据。Jinshajiang River Basin of Yunnan Province is characterized by complex topography and physiognomy. In accordance with the differences on physiognomy and climate system, the forest vegetation types of this region could be divided into three zones, namely mountain-gorge region in the western part, semimountain gorge and central Yunnan plateau in central part, and semi-mountain gorge in the eastern part respectively. There are different forest vegetation types in different zones; on the contrary, any kind of typical forest vegetation type is an indicator for a specific zone. On the basis of investigation and analysis, the types and characteristics of forest vegetation in mountain-gorge region in the western part, semi-mountain gorge and central Yunnan plateau in central part, and semi-mountain gorge in the eastern part of Jinshajiang River Basin in Yunnan Province were elaborated, which was very important for the practice of revegetation in this area. Scientific division of vegetation types is an especially important measure to ensure the effect of revegetation, and is also a key factor to make sure that the revegetation is implemented conforming to the natural law. Besides, the paper also illustrated the different forest vegetation types and the differences of them in vertical distribution of the studied three zones in Jinshajiang River Basin, and illuminated the climax communities and subclimax communities of different zones in the watershed. This study provided foundation for revegetation practices, which were in compliance with the theory of close-to-nature forestry in Jinshajiang River Basin of Yunnan Province.
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