西北林学院学报2012，Vol.27Issue(3)：48-54,7.DOI:10.3969/j.issn.1001-7461.2012.03.11
干旱区降水格局改变的生态效应及其复杂性
Ecological Effects of the Change of Precipitation Pattern and Its Complexity in Arid Regions
摘要
Abstract
With the change of global climate, researches on the variation precipitation pattern and relative ecological effects have become important issues to further understand the water cycle and the succession, as well as adaptation of desert plants in arid regions. However, knowledge about the impact of precipitation pattern change on the soil water distribution and plant growth in arid areas is limited, and key processes and mechanism need clarification. The paper reviewed-the impact on soil water distribution and plant growth of precipitation pattern change in arid areas, and analyzed the impact of antecedent soil water and nutrient conditions, plant types, root distributions, water uptake patterns, phenology and age on plant growth under different precipitation patterns. The paper also pointed out that, because the significant variation of precipitation patterns and its ecological effects were influenced by multiple factors in arid areas, the ecological effects were quite complex. Therefore, in order to better predict the ecological effects of precipitation pattern change in arid areas, we must address the research on plant growth with season variation when precipitation pattern change happens, and pay attention to the effects of non-growing season precipitation.关键词
降水格局/非生长季降水/前期土壤水分/植物类型/根系分布/土壤养分Key words
precipitation pattern/ precipitation in nonrgrowing season/ antecedent soil water/ plant type/ root distribution/ soil nutrient分类
农业科技引用本文复制引用
周朝彬,陈刘生,牛攀新,唐诚,杨小建..干旱区降水格局改变的生态效应及其复杂性[J].西北林学院学报,2012,27(3):48-54,7.基金项目
石河子大学高层次人才科研启动资金专项(RCZX200907). （RCZX200907）
