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首页> 外文会议>International Grassland Congress >Leaf nitrogen and phosphorus stoichiometry of natural plant community and restorable plant community in the northern Qinghai-Tibet Plateau, China
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Leaf nitrogen and phosphorus stoichiometry of natural plant community and restorable plant community in the northern Qinghai-Tibet Plateau, China

机译：青藏高原北部天然植物群落及可恢复植物群落的氮素氮和磷化学计量

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摘要

The human engineering activities (highway, railway, cable, gas line and high line construction) has a negative impact on the alpine grassland ecosystem in the Qinghai-Tibet Plateau (QTP), and the natural restoration of plant community in land used forengineering construction is an important part of the rehabilitation of the degraded alpine grassland ecosystem. Previous studies have shown that the plant species and community diversity relationship in natural plant community and restorable plant community vary with the elevation (Guo et al. 2007) and restoration duration of land for engineering construction is more than 20 years at present (Ma et al. 2004). Understanding the mechanisms of plant species replacement in the process of plant restorationis important to restore the land used for engineering construction. The ecological stoichiometry is considered as an effective tool to disclose the inter-specific competition process and determine the succession trend (Guscwell 2004; Gusewell 2005; Yin et al. 2010). However, the stoichiometry relationship between natural plant community and restorable plant community is not well known yet. The objective of this study is to investigate the nitrogen (N) and phosphorus (P) stoichiometry of natural plant community and restorable plant community and its changes with elevation.
机译：人力工程活动（公路，铁路，电缆，燃气管线和高线建设）对青藏高原（QTP）的高山草原生态系统产生负面影响，而植物群落在陆地上使用的植物群体的建设是恢复高山草原生态系统康复的重要组成部分。以前的研究表明，天然植物群落和社区多样性关系，自然植物群落和可恢应的植物界的关系随着海拔（Guo等，2007）和工程建设的恢复持续时间超过20年（Ma等人） 。2004）。了解植物物种在植物恢复过程中替代的机制重要，以恢复用于工程建设的土地。生态化学计量被认为是披露特定竞争过程的有效工具，并确定继承趋势（Guscwell 2004; Gusewell 2005; Yin等人2010）。然而，天然植物群落和可恢应植物群落之间的化学计量关系尚未着名。本研究的目的是研究天然植物群落和可恢应植物群落的氮（N）和磷（P）化学计量及其升高的变化。

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