Termites promote soil carbon and nitrogen depletion: Results from an in situ macrofauna exclusion experiment, Peru
Termites promote soil carbon and nitrogen depletion: Results from an in situ macrofauna exclusion experiment, Peru
复制标题
DOI：
10.1016/j.soilbio.2014.05.033
复制
发表时间：
2014-10
影响因子：
9.7
通讯作者：
C. Dahlsjö;C. Parr;Y. Malhi;P. Meir;Omayra V.C. Chevarria;P. Eggleton
中科院分区：
文献类型：
--
作者：
C. Dahlsjö;C. Parr;Y. Malhi;P. Meir;Omayra V.C. Chevarria;P. Eggleton
我们目前的结果，从一个firstin situsoil白蚁排除实验使用易位土壤，没有被白蚁殖民实验之前。分别使用细网格（0.3毫米）和粗网格（5毫米）排除或包括大型动物。我们发现，白蚁是最占主导地位的大型底栖动物在整个采样期间的大型底栖动物包括样品。此外，尽管白蚁在雨季开始时季节性下降，但有大型底栖动物的样本中的C和N消耗率始终高于无大型底栖动物的样本。这表明，白蚁在土壤中的存在下，促进C和N耗尽，这可能与通过白蚁肠道的土壤和白蚁对生物扰动和营养分布的影响。
We present results from one of the firstin situsoil termite exclusion experiments using translocated soil that was not colonised by termites prior to the experiment. Macrofauna were excluded or included using fine (0.3 mm) and coarse (5 mm) mesh, respectively. We found that termites were the most dominant macrofauna in the macrofauna-included samples throughout the sampling period. Additionally, C and N depletion rates were consistently higher in samples with macrofauna than without macrofauna despite the seasonal decline of termites at the start of the wet season. This suggests that the presence of termites in soil promotes C and N depletion that may be linked to the passage of soil through the termite gut and the affect termites have on bioturbation and nutrient distribution.