Rock Outcrops Redistribute Organic Carbon and Nutrients to Nearby Soil Patches in Three Karst Ecosystems in SW China
文献类型：期刊论文
| 作者 | Youxin Shen
|
| 刊名 | PLoS ONE
 |
| 出版日期 | 2017 |
| 卷号 | 11期号:8页码:e0160773 |
| 中文摘要 | Emergent rock outcrops are common in terrestrial ecosystems. However, little research has been conducted regarding their surface function in redistributing organic carbon and nutrient fluxes to soils nearby. Water that fell on and ran off 10 individual rock outcrops was collected in three 100 × 100 m plots within a rock desertification ecosystem, an anthropogenic forest ecosystem, and a secondary forest ecosystem between June 2013 and June 2014 in Shilin, SW China. The concentrations of total organic carbon (TOC), total nitrogen (N), total phosphorus (P), and potassium (K) in the water samples were determined during three seasons, and the total amounts received by and flowing out from the outcrops were calculated. In all three ecosystems, TOC and N, P, and K were found throughout the year in both the water received by and delivered to nearby soil patches. Their concentrations and amounts were generally greater in forested ecosystems than in the rock desertification ecosystem. When rock outcrops constituted a high percentage (≥ 30%) of the ground surface, the annual export of rock outcrop runoff contributed a large amount of organic carbon and N, P, and K nutrients to soil patches nearby by comparison to the amount soil patches received via atmospheric deposition. These contributions may increase the spatial heterogeneity of soil fertility within patches, as rock outcrops of different sizes, morphologies, and emergence ratios may surround each soil patch. |
| 语种 | 英语 |
| 公开日期 | 2017-05-25 |
| 源URL | [http://ir.xtbg.org.cn/handle/353005/10405]  |
| 专题 | 西双版纳热带植物园_恢复生态学组 |
| 通讯作者 | Youxin Shen |
| 推荐引用方式 GB/T 7714 | Youxin Shen. Rock Outcrops Redistribute Organic Carbon and Nutrients to Nearby Soil Patches in Three Karst Ecosystems in SW China[J]. PLoS ONE,2017,11(8):e0160773. |
| APA | Youxin Shen.(2017).Rock Outcrops Redistribute Organic Carbon and Nutrients to Nearby Soil Patches in Three Karst Ecosystems in SW China.PLoS ONE,11(8),e0160773. |
| MLA | Youxin Shen."Rock Outcrops Redistribute Organic Carbon and Nutrients to Nearby Soil Patches in Three Karst Ecosystems in SW China".PLoS ONE 11.8(2017):e0160773. |
入库方式： OAI收割
来源：西双版纳热带植物园
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