Effects of Land Cover on Soil Organic Carbon Stock in a Karst Landscape with Discontinuous Soil Distribution
文献类型：期刊论文
| 作者 | CHEN Xiang-bi ; ZHENG Hua ; ZHANG Wei ; HE Xun-yang ; LI Lei ; WU Jin-shui ; HUANG Dao-you ; SU Yi-rong |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2014-05 |
| 卷号 | 11期号:3页码:774-781 |
| 关键词 | Soil organic carbon (SOC) Karst area Discontinuous soil distribution Land cover type Carbon sequestration potential |
| 通讯作者 | SU Yi-rong |
| 英文摘要 | Land cover type is critical for soil organic carbon (SOC) stocks in territorial ecosystems. However, impacts of land cover on SOC stocks in a karst landscape are not fully understood due to discontinuous soil distribution. In this study, considering soil distribution, SOC content and density were investigated along positive successional stages (cropland, plantation, grassland, scrubland, secondary forest, and primary forest) to determine the effects of land cover type on SOC stocks in a subtropical karst area. The proportion of continuous soil on the ground surface under different land cover types ranged between 0.0% and 79.8%. As land cover types changed across the positive successional stages, SOC content in both the 0–20 cm and 20–50 cm soil layers increased significantly. SOC density (SOCD) within 0–100 cm soil depth ranged from 1.45 to 8.72 kg m-2, and increased from secondary forest to primary forest, plantation, grassland, scrubland, and cropland, due to discontinuous soil distribution. Discontinuous soil distribution had a negative effect on SOC stocks, highlighting the necessity for accurate determination of soil distribution in karst areas. Generally, ecological restoration had positive impacts on SOC accumulation in karst areas, but this is a slow process. In the short term, the conversion of cropland to grassland was found to be the most efficient way for SOC sequestration. |
| 收录类别 | SCI |
| 公开日期 | 2014-05-06 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/6905]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2014_Vol11 No.3 |
| 推荐引用方式 GB/T 7714 | CHEN Xiang-bi,ZHENG Hua,ZHANG Wei,et al. Effects of Land Cover on Soil Organic Carbon Stock in a Karst Landscape with Discontinuous Soil Distribution[J]. Journal of Mountain Science,2014,11(3):774-781. |
| APA | CHEN Xiang-bi.,ZHENG Hua.,ZHANG Wei.,HE Xun-yang.,LI Lei.,...&SU Yi-rong.(2014).Effects of Land Cover on Soil Organic Carbon Stock in a Karst Landscape with Discontinuous Soil Distribution.Journal of Mountain Science,11(3),774-781. |
| MLA | CHEN Xiang-bi,et al."Effects of Land Cover on Soil Organic Carbon Stock in a Karst Landscape with Discontinuous Soil Distribution".Journal of Mountain Science 11.3(2014):774-781. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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