节点文献

Analysis of phosphorus forms in sediment cores from ephemeral ponds on Ardley Island, West Antarctica

免费订阅

【作者】 YANG LianjiaoQIN XianyanSUN LiguangHUANG TaoWANG Yuhong

【Author】 YANG Lianjiao;QIN Xianyan;SUN Liguang;HUANG Tao;WANG Yuhong;Institute of Polar Environment, School of Earth and Space Sciences, University of Science and Technology of China;Geological Survey of Anhui Province;

【机构】 Institute of Polar Environment, School of Earth and Space Sciences, University of Science and Technology of ChinaGeological Survey of Anhui Province

【摘要】 The guano of penguins, other seabirds, and pinnipeds is an important source of phosphorus in the ecosystems of Antarctica. To study the vertical distribution of phosphorus in sediments influenced by penguins, we measured phosphorus forms in two sediment cores(G1 and Q2) from ephemeral ponds on Ardley Island. We also investigated the correlations between these phosphorus forms and physicochemical characteristics. Inorganic phosphorus was the main form of phosphorus in both cores. The vertical distribution patterns of phosphorus forms in G1 and Q2 differed, indicating different sedimentary sources. The G1 sediment profile was more influenced by penguin guano than the Q2 profile, and as a result sediments in the G1 core had higher total phosphorus, non-apatite inorganic phosphorus, and apatite phosphorus content. The findings from two ephemeral ponds on Ardley Island indicate that the contribution of penguin guano to organic matter in G1 core has increased in recent times, while Q2 showed a relatively larger contribution from mosses in ancient times, evident from the lithology and the vertical trend in organic matter.

【基金】 funded by the Chinese Polar Environment Comprehensive Investigation & Assessment Programs (Grant no. CHINARE2015-02-01)
【所属期刊栏目】 Articles (2015年01期)
  • 【DOI】10.13679/j.advps.2015.1.00047
  • 【分类号】P595;P941.61
  • 【被引频次】1
  • 【下载频次】14
节点文献中: 

本文链接的文献网络图示:

浏览历史:
下载历史: