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中国沙漠  2014 

干旱荒漠土壤动物分布格局对降水脉动的响应研究进展

DOI: 10.7522/j.issn.1000-694X.2013.00428

Keywords: 干旱荒漠,降水脉动,土壤动物,分布格局

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Abstract:

在干旱荒漠区,降水呈现强烈的脉动特征(即降水频率、强度及数量的高度变异性),降水脉动变化对荒漠土壤动物的分布格局有显著影响。目前对降水脉动如何影响和调控荒漠土壤动物分布格局形成与维持的生态机制的认识非常有限。因此,深入开展干旱荒漠区降水脉动变化对土壤动物群落分布及多样性影响研究具有重要的科学意义。本文围绕“降水脉动驱动资源脉动影响土壤动物食物网结构”这一核心问题,重点从自然降水变化、冬季降雪变化和夏季降雨变化等方面对国内外的研究动态及最新研究进展做比较系统的评述。在此基础上,探索干旱荒漠生态系统响应降水变化研究中应重点关注的几个前沿科学问题,这可为中国干旱荒漠生态系统生物多样性保护管理提供科学依据,促进荒漠生态系统生物多样性保育理论、资源脉动生态学理论和研究方法的发展。

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