| 极端干旱区咸水灌溉人工防护林土壤可溶性碳的垂直分布及其影响因素 |
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| 引用本文： | 孟天歌,吴路遥,张少磊,徐燕莹,李雄,张建国.极端干旱区咸水灌溉人工防护林土壤可溶性碳的垂直分布及其影响因素[J].环境科学,2020,41(4):1950-1959. |
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| 作者姓名： | 孟天歌 吴路遥 张少磊 徐燕莹 李雄 张建国 |
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| 作者单位： | 西北农林科技大学资源环境学院,农业部西北植物营养与农业环境重点实验室,杨凌712100,西北农林科技大学资源环境学院,农业部西北植物营养与农业环境重点实验室,杨凌712100,西北农林科技大学资源环境学院,农业部西北植物营养与农业环境重点实验室,杨凌712100,西北农林科技大学资源环境学院,农业部西北植物营养与农业环境重点实验室,杨凌712100,西北农林科技大学资源环境学院,农业部西北植物营养与农业环境重点实验室,杨凌712100,西北农林科技大学资源环境学院,农业部西北植物营养与农业环境重点实验室,杨凌712100;黄土高原土壤侵蚀与旱地农业国家重点实验室,杨凌712100 |
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| 基金项目： | 国家自然科学基金项目（41877541,41471222）;西北农林科技大学大学生科创项目（X201910712141） |
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| 摘 要： | 可溶性碳(DC)是土壤中最活跃的碳组分,植被恢复与重建加速了干旱荒漠区的碳循环过程.研究咸水灌溉下沙漠人工防护林地土壤剖面DC的分布,可为干旱荒漠区人工林的管理和开发利用提供理论支撑和决策依据.本研究选取塔克拉玛干沙漠公路沿线5个不同矿化度咸水滴灌林地作为研究样地,流沙地为对照(CK),分析并讨论了0～1 m剖面土壤可溶性有机碳(SDOC)和可溶性无机碳(SDIC)的垂直分布特征及其与各因子间的相关关系.结果表明,CK与2.82 g·L-1矿化度滴灌处理SDOC、SDIC呈"I"型分布,其分布满足线性函数关系,其他各样地SDOC和SDIC均呈"Γ"型分布,分布满足幂函数关系;所有处理表层SDOC、SDIC波动能力及贡献度均高于下层土壤,且SDOC波动及贡献度均大于SDIC, 2.82 g·L-1之外的各林地SDOC平均含量是SDIC的2～4倍;2.82 g·L-1样地SDOC平均含量低于CK,其他各样地SDOC是CK的3～5倍,各样地SDIC含量较CK增加了15.0%～57.9%;矿化度高于2.82 g·L-1...
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| 关 键 词： | 土壤可溶性有机碳(SDOC) 土壤可溶性无机碳(SDIC) 土壤可溶性碳(SDC) 咸水灌溉 沙漠公路防护林 |
| 收稿时间： | 2019/9/1 0:00:00 |
| 修稿时间： | 2019/11/19 0:00:00 |
Vertical Distribution of Soil Dissolved Carbon and Its Influencing Factors in the Artificial Shelterbelt Irrigated with Saline Water in an Extreme Drought Desert |
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| MENG Tian-ge,WU Lu-yao,ZHANG Shao-lei,XU Yan-ying,LI Xiong and ZHANG Jian-guo.Vertical Distribution of Soil Dissolved Carbon and Its Influencing Factors in the Artificial Shelterbelt Irrigated with Saline Water in an Extreme Drought Desert[J].Chinese Journal of Environmental Science,2020,41(4):1950-1959. |
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| Authors: | MENG Tian-ge WU Lu-yao ZHANG Shao-lei XU Yan-ying LI Xiong and ZHANG Jian-guo |
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| Institution: | Ministry of Agriculture Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China,Ministry of Agriculture Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China,Ministry of Agriculture Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China,Ministry of Agriculture Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China,Ministry of Agriculture Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China and Ministry of Agriculture Key Laboratory of Plant Nutrition and the Agro-environment in Northwest China, College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China;State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Yangling 712100, China |
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| Abstract: | |
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| Keywords: | soil dissolved organic carbon (SDOC) soil dissolved inorganic carbon (SDIC) soil dissolved carbon (SDC) saline irrigation desert highway shelterbelt |
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