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- 2017
内蒙古大青山蒙椴植物印记效度推验
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Abstract:
对引进新西兰的低影响城市设计与开发(LIUDD)实践所用“植物印记”法进行效度推验.以呼市蒙椴群落植物印记为研究对象，用典型取样、现场实测等方法获取原始数据，以生物多样性、群落分布、群落空间结构及种群构成等分析为基础，从生物多样性、物种丰富度及景观自然度等方面进行效度推验.景观重要值被应用于植物印记提取；景观自然度概念亦被提出并应用其中.结果表明：植物印记可提高项目区物种丰富度5~7倍；随植被覆盖度不同，景观自然度可恢复33%~67%.裸地生物多样性指数可恢复至丰富，高覆盖度区域可恢复至0.55.
Our research aims to test the effects of the plant signature, which was developed in New Zealand as a central concept for plant arrangement in the practice of Low Impact Urban Design and Development (LIUDD). This research is focused on the plant signature of Tilia mongolica growing in Halaqingou stream valley of Daqingshan Mountain, Hohhot, which is going to be implemented to improve ecological restoration in suburban area of Hohhot. Route investigation, typical sampling methods and plot investigation methods were used on this wild dominant tree species in forest populations. Based on analyzing their biodiversities index, distribution patterns, spatial structure feature and species composition, the effects of plant signature of Tilia mongolica have been testified from following three aspects: biodiversities, species richness and natural degree. In order to improve the accuracy of plant signatures, the Ⅳ and the natural degree were implemented from the preceding information. It is showed that the plant signature can improve the indices of species richness from 5 times to 7 times, and the natural degree can be increase from 33% to 67%, and biodiversity indices can be restored to the maximum value of 0.55 for the original site with high coverage of artificial forests and above the richness level for the naked sites with the variation of plant coverage
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