中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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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