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| 论文编号: |
101 |
| 论文题目: |
Using delta Dn-alkane as a proxy for paleo-environmental reconstruction: A good choice to sample at the site dominated by woods |
| 英文论文题目: |
Using delta Dn-alkane as a proxy for paleo-environmental reconstruction: A good choice to sample at the site dominated by woods |
| 第一作者: |
Liu, JZ |
| 英文第一作者: |
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| 联系作者: |
Liu Jinzhao |
| 英文联系作者: |
Liu Jinzhao |
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| 发表年度: |
2017 |
| 卷: |
599 |
| 期: |
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| 页码: |
557-559 |
| 摘要: |
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| 英文摘要: |
Some studies have demonstrated that leaf wax delta Dn-alkane values for a single species varied significantly with seasons. However, it is still not clear that the seasonality patterns of leaf wax delta Dn-alkane values in higher plants. Meanwhile, few efforts have been pursued to assess the effect of the light slopes (sunny vs. cloudy) on leaf wax delta Dn-alkane values. In this study, we systematically investigated plant wax delta Dn-alkane values and soil n-alkane delta D values along different light slopes in different seasons (spring vs. autumn), as well as the relationship of n-alkane delta D values between plant leaves and soil. We found that plant wax delta Dn-alkane values were D-enriched by ca. 20%0 in spring relative to autumn, and ca. 10 parts per thousand in the sunny slope than in the cloudy slope. Moreover, surface soil n-alkane delta D values varied consistently with plant wax delta Dn-alkane values for different seasons and light slopes. More importantly, plant wax delta Dn-alkane values showed clear seasonal variations, but varied slightly with light slopes. The variations of plant wax delta Dn-alkane values can be recorded in soil n-alkane delta Dn-alkane values. In addition, we found that leaf wax delta Dn-alkane values in a majority of species differed significantly among woods, non-woods and grasses at a site. Therefore, we suggested a good choice to sample at the site dominated by woods when leaf wax delta Dn-alkane values are utilized as a proxy for the reconstruction of the paleoenvironment. |
| 刊物名称: |
SCIENCE OF THE TOTAL ENVIRONMENT |
| 英文刊物名称: |
SCIENCE OF THE TOTAL ENVIRONMENT |
| 论文全文: |
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| 英文论文全文: |
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| 全文链接: |
http://www.sciencedirect.com/science/article/pii/S0048969717311002?via%3Dihub |
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