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| 黄土坡面不同土地利用方式对土壤有机碳流失的影响 | |
| 引用本文： | 邓瑞芬,王百群,刘普灵,刘栋,徐佳.黄土坡面不同土地利用方式对土壤有机碳流失的影响[J].水土保持研究,2011,18(5):104-107. |
| 作者姓名： | 邓瑞芬 王百群 刘普灵 刘栋 徐佳 |
| 作者单位： | 1. 西北农林科技大学资源环境学院,陕西杨凌,712100 2. 西北农林科技大学资源环境学院,陕西杨凌712100／中国科学院水利部水土保持研究所土壤侵蚀与旱地农业国家重点实验室,陕西杨凌712100 3. 中国科学院水利部水土保持研究所土壤侵蚀与旱地农业国家重点实验室,陕西杨凌,712100 |
| 基金项目： | 国家科技支撑项目农田水土保持关键技术研究与示范(2001BAD31BO1); 中国科学院战略性先导科技专项“应对气候变化的碳收支认证及相关问题”(XDA05050504); 黄土高原土壤侵蚀与旱地农业国家重点实验室自主课题(10502-Z11-3,10502-Z11) |
| 摘 要： | 坡面土地利用方式与产流、产沙及土壤有机碳的流失具有密切关系。对延安燕沟流域的坡耕地、草地、刈割草地、灌木地、刈割灌木以及刺槐林地径流小区的径流、泥沙及有机碳流失量进行了分析。结果表明：在不同土地利用方式下,产流、产沙量与植被覆盖度呈负相关关系;随径流流失的可溶性有机碳量表现为：坡耕地〉刈割草地〉草地〉刈割灌木地〉灌木地〉刺槐林地小区,随泥沙流失的有机碳量表现为：坡耕地〉草地〉灌木〉刺槐林地。随泥沙流失的土壤有机碳占总流失量的主要部分,而随径流流失的有机碳只占很少的比例。因此,增加黄土坡面植被覆盖度是控制产流、产沙量和有机碳流失的重要途径。 |
| 关 键 词： | 土地利用方式 土壤有机碳流失 水土流失 黄土坡面 |
Effects of Different Land Use Patterns on Soil Organic Carbon Loss on the Loess Slope |
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| DENG Rui-fen,WANG Bai-qun,LIU Pu-ling,LIU Dong,XU Jia.Effects of Different Land Use Patterns on Soil Organic Carbon Loss on the Loess Slope[J].Research of Soil and Water Conservation,2011,18(5):104-107. | |
| Authors: | DENG Rui-fen WANG Bai-qun LIU Pu-ling LIU Dong XU Jia |
| Institution: | DENG Rui-fen1,WANG Bai-qun1,2,LIU Pu-ling1,LIU Dong1,XU Jia2(1.College of Resources and Environmental Science,Northwest A&F University,Yangling,Shaanxi 712100,China,2.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau,Institute of Soil and Water Conservation,Chinese Academy of Sciences and Ministry of Water Resources,Shaanxi 712100) |
| Abstract: | Slope land use pattern has a close relationship with generation of runoff and sediment as well as soil organic carbon loss.A study on the runoff,sediment and organic carbon loss was conducted in 6 runoff plots on a slope in Yangou watershed.The plots were used as bare land,harvested grassland,grassland,harvested shrub land,shrub land and Robinia pseudoacacia L.woodland respectively.The results showed that the yields of runoff and sediment were negatively correlated with the vegetation coverage under differe... |
| Keywords: | land use pattern soil organic carbon loss soil and water loss loess slope |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |