Soil water soluble organic carbon under three alpine grassland types in Northern Tibet, China
Soil water soluble organic carbon under three alpine grassland types in Northern Tibet, China
复制标题
藏北三种高寒草地类型土壤水溶性有机碳
DOI：
10.5897/ajar11.322
复制
发表时间：
2011-05
影响因子：
--
通讯作者：
Xiaodan Wang
中科院分区：
文献类型：
--
作者：
Xuyang Lu;Jihui Fan;Yan Yan;Xiaodan Wang
水溶性有机碳（WSOC）是土壤中最具移动的活性碳源。它在许多地球化学过程中起着重要的作用。以平均海拔4500 m以上的藏北北方3种典型高寒草地类型为研究对象，研究了生长季0 ~ 15 cm土层土壤水溶性有机碳（WSOC）的变化。并对土壤环境因子对3种草地类型的贡献进行了评价。我们发现，WSOC通常在5月的第一次采样时较高，随后的采样则有所下降。此外，在较短的生长季内，高寒草甸草原生态系统的WSOC含量显著高于高寒草甸和高寒草原生态系统。高寒草地土壤WSOC与土壤温度和水分均呈负相关。这些结果表明，高寒地区不同草地类型土壤WSOC存在较大差异，土壤温度、水分等环境条件是控制土壤WSOC含量的重要因素。
Water soluble organic carbon (WSOC) is the most mobile and reactive soil carbon source available. It plays an important role in many biogeochemical processes. In this study, we assessed WSOC in the upper 0 to 15 cm soil layer, during the growing season of three representative alpine grassland types of Northern Tibet, with an average elevation of over 4500 m. We also evaluated the contributions of soil environmental factors on the three types of grassland. We found that the WSOC was typically higher at the first sampling in May and decreased with subsequent samples. Furthermore, over the short growing season, the alpine meadow steppe ecosystem had significantly higher WSOC content than the alpine meadow and alpine steppe ecosystems. Soil WSOC of alpine grasslands also negatively correlated with both soil temperature and moisture. These results indicated that soil WSOC is considerably different among the different types of grassland in the same alpine area, and we conclude that soil environmental conditions including soil temperature and moisture are important influencing factors that control soil WSOC content.
登录
查看更多内容
影响因子：
9.7
作者：
J. Halvorson;Javier M. Gonzalez
通讯作者：
J. Halvorson;Javier M. Gonzalez
DOI：
10.1023/a:1005134121710
发表时间：
2000-03
期刊：
Water, Air, and Soil Pollution
影响因子：
--
作者：
S. Tao;B. Lin;Xiaohan Liu;Jun Cao
通讯作者：
S. Tao;B. Lin;Xiaohan Liu;Jun Cao
影响因子：
4.2
作者：
A. Ghani;M. Dexter;R. Carran;P. Theobald
通讯作者：
A. Ghani;M. Dexter;R. Carran;P. Theobald
影响因子：
6.9
作者：
B. Scaglia;F. Adani
通讯作者：
B. Scaglia;F. Adani
影响因子：
4.9
作者：
Manuel Montano, Noe;Garcia-Oliva, Felipe;Jaramillo, Victor J.
通讯作者：
Jaramillo, Victor J.