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中文摘要：
随着气候变暖、极端天气频发、干旱灾害加剧的趋势,干旱区域面积扩大成为全球变化的重要特征之一,由此绿地生态系统的生态稳定性受到了严峻挑战。城市绿化树木作为绿地系统功能发挥的关键因素,其抗旱能力是应对升温干旱的重要策略。文章从树木的抗旱机理、研究方法、评价指标、评价方法 4个方面对近年来的研究进行了综述,为提升绿地的生态适应性提供对策。
英文摘要：
With the increasingly exacerbated trends of global warming, extreme weather events and drought disasters, the expansion of the arid area has become one of the important features of global change. As a result, the ecological stability of green space ecosystem is facing severe challenges. As a key factor in the functioning of green space, urban landscape trees are an important strategy in response to the drought stress out of their drought resistance. The paper reviewed the recent studies on urban landscape trees in terms of drought resistance mechanism, evaluation index, evaluation system and evaluation method, and provided the countermeasures to enhance the ecological elasticity of green spaces.
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