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Elemental and isotopic compositions of New Zealand regional soils identifies human and climate-induced effects

文献类型： 外文期刊

作者： Rogers, Karyne M. 1 ; Martin, Adam P. 2 ; Pradel, Giovanni 3 ; Yuan, Yuwei 4 ; Zhang, Yongzhi 4 ; Turnbull, Rose E. 2 ;

作者机构： 1.GNS Sci, Natl Isotope Ctr, POB 30-368, Lower Hutt, New Zealand

2.GNS Sci, Private Bag 1930, Dunedin, New Zealand

3.GNS Sci, POB 30-368, Lower Hutt, New Zealand

4.Zhejiang Acad Agr Sci, Hangzhou 310021, Peoples R China

5.Minist Agr & Rural Affairs, Key Lab Informat Traceabil Agr Prod, Hangzhou 310021, Peoples R China

关键词： Land-use; Stable isotopes; Elements; Soil survey; Anthropogenic; Vineyard

期刊名称：APPLIED GEOCHEMISTRY （ 影响因子：3.841； 五年影响因子：4.045 ）

ISSN： 0883-2927

年卷期： 2022 年 143 卷

页码：

收录情况： SCI

摘要： A regional soil study of 61 sites from the Wairau and Awatere Valleys, Marlborough region, New Zealand characterised the geochemical baselines of different land-use types. The study used three stable isotopes (delta C-13, delta N-15, delta S-34) and 65 elements to describe the influence of parent-rock geology, human and climate-induced effects and natural transport processes on the soil quality and soil health of this region. The temperate Marlborough region produces high quality wine and the elemental and isotopic composition of a subset of vineyard soils are examined in more detail to identify soil characteristics specific to this agriculturally productive region. Higher levels of Cd, K, N, P, S and Zn were found in vineyard soils compared to forested and rural soils, indicative of anthropogenic agricultural inputs. Stable isotopes in vineyard soils had higher delta C-13 and delta N-15 values and lower delta S-34 values than forested and rural soils, typical of more highly cultivated soils. The natural geogenic inputs from the ultra-mafic mountains enclosing the Wairau and Awatere Valleys were geochemically distinct from localised anthropogenic contaminants. Comparisons with a further 240 New Zealand urban (Dunedin) and rural (Southland-Otago region) soils suggests the elemental contaminants found in the Marlborough vineyard soils may be specific to high-yielding agricultural zones across New Zealand.

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