气候变化领域集成服务门户(CCPortal): Soil properties and microbial indicators of samples from Lake Wellman, Darwin Mountains, Antarctica

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DOI	https://doi.org/10.1594/PANGAEA.806198
	Soil properties and microbial indicators of samples from Lake Wellman, Darwin Mountains, Antarctica
	Aislabie; Jackie; Bockheim; James G; McLeod; Malcolm; Hunter; David; Stevenson; Bryan; Barker; Gary M
发布日期	2012-01-29
数据集类型	dataset
英文简介	Four pedons on each of four drift sheets in the Lake Wellman area of the Darwin Mountains were sampled for chemical and microbial analyses. The four drifts, Hatherton, Britannia, Danum, and Isca, ranged from early Holocene (10 ka) to mid-Quaternary (c. 900 ka). The soil properties of weathering stage, salt stage, and depths of staining, visible salts, ghosts, and coherence increase with drift age. The landforms contain primarily high-centred polygons with windblown snow in the troughs. The soils are dominantly complexes of Typic Haplorthels and Typic Haploturbels. The soils were dry and alkaline with low levels of organic carbon, nitrogen and phosphorus. Electrical conductivity was high accompanied by high levels of water soluble anions and cations (especially calcium and sulphate in older soils). Soil microbial biomass, measured as phospholipid fatty acids, and numbers of culturable heterotrophic microbes, were low, with highest levels detected in less developed soils from the Hatherton drift. The microbial community structure of the Hatherton soil also differed from that of the Britannia, Danum and Isca soils. Ordination revealed the soil microbial community structure was influenced by soil development and organic carbon.
空间范围	Latitude: -79.921170 * Longitude: 156.925190
时间范围	2007-12-03T00:00:00 - 2007-12-21T00:00:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215544
推荐引用方式 GB/T 7714	Aislabie,Jackie,Bockheim,et al. Soil properties and microbial indicators of samples from Lake Wellman, Darwin Mountains, Antarctica.2012-01-29.https://doi.org/10.1594/PANGAEA.806198.