A comparison of deflation basin (wetland) soils from wet and dry climatic zones in Tasmania

机译：塔斯马尼亚州干湿气候区通缩盆地（湿地）土壤的比较

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Deflation basins, or shallow depressions formed by wind erosion, are found in many semi-arid regions around the world. Because these features are topographic lows they become sites of water accumulation and are often associated with wetlands that represent important refugia for biota in dry environments. Despite being important habitats little is known about the relationship between water and sediment in these features. This study assesses soil geochemical properties from 50 wet-climate and 39 dry-climate deflation basins in Tasmania. The results reveal clear differences between wet-climate and dry-climate deflation basin soils. Macronutrients typically have higher concentrations in wet-climate soils (with the exception of potassium and calcium) while metals and other trace elements typically have higher concentrations in dry-climate soils. These findings have important implications for wetland biological-soil associations, with high plant productivity likely in wet-climate deflation basins as a result of both favourable nutrient status and better water availability.

机译：在世界上许多半干旱地区都发现了通缩盆地或因风蚀而形成的浅凹区。因为这些特征是地形低点，所以它们成为积水的场所，并且经常与湿地相关联，这些湿地代表了干旱环境中生物群重要的避难所。尽管是重要的栖息地，但对于这些特征中水与沉积物之间的关系知之甚少。这项研究评估了塔斯马尼亚州50个湿气候和39个干气候通缩盆地的土壤地球化学特性。结果表明，湿气候和干气候通缩盆地土壤之间存在明显差异。常量营养素在潮湿气候的土壤中（钾和钙除外）的浓度通常较高，而金属和其他微量元素在干旱气候的土壤中的浓度通常较高。这些发现对湿地生物-土壤联系具有重要意义，由于有利的养分状况和更好的水利用状况，湿气候通缩盆地中的植物生产力可能很高。

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来源
《Water quality: current trends and expected climate change impacts》|2011年|p.26-31|共6页
会议地点 Melbourne(AU);Melbourne(AU);Melbourne(AU)
作者
MELISSA NEAVE; SCOTT RAYBURG; ELLEN CURTIS;
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作者单位

Centre for Environmental Sustainability, University of Technology, Sydney, 15 Broadway, Ultimo, New South Wales 2007, Australia;

Centre for Environmental Sustainability, University of Technology, Sydney, 15 Broadway, Ultimo, New South Wales 2007, Australia;

Centre for Environmental Sustainability, University of Technology, Sydney, 15 Broadway, Ultimo, New South Wales 2007, Australia;

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原文格式 PDF
正文语种 eng
中图分类水质评价;
关键词
water balance; geochemistry; nutrients; trace elements; tasmania; australia;

机译：水平衡地球化学营养素微量元素;塔斯马尼亚澳大利亚;

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A comparison of deflation basin (wetland) soils from wet and dry climatic zones in Tasmania

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