| 黄土高原南北样带刺槐林土壤碳、氮、磷生态化学计量特征 |
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| 引用本文： | 李佳佳,樊妙春,上官周平. 黄土高原南北样带刺槐林土壤碳、氮、磷生态化学计量特征[J]. 生态学报, 2019, 39(21): 7996-8002 |
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| 作者姓名： | 李佳佳 樊妙春 上官周平 |
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| 作者单位： | 西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室, 杨凌 712100,中国科学院水利部水土保持研究所, 杨凌 712100,西北农林科技大学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： | 国家重点研发计划课题（2016YFC0501605）；国家自然科学基金项目（41771549）；中国博士后科学基金（2018M633601）；陕西省自然科学基础研究计划（2019JQ-057） |
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| 摘 要： | 为了解黄土高原南北样带刺槐林土壤碳（C）、氮（N）、磷（P）化学计量特征，采集了黄土高原南北样带上12个典型样点的刺槐林土壤，测定了土壤有机碳（SOC）、全氮（TN）、全磷（TP）含量并分析其生态化学计量特征。结果表明：刺槐林土壤SOC、TN、TP含量均随降水量降低而降低，且土壤SOC与TN的空间变化具有一致性；土壤SOC、TN、TP及其生态化学计量比与降雨量呈显著正相关（P < 0.05），且TN、C：P、N：P与土壤含水量也呈显著正相关（P < 0.05）。
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| 关 键 词： | 刺槐 化学计量学 土壤 降水 黄土高原 |
| 收稿时间： | 2019-04-01 |
| 修稿时间： | 2019-07-03 |
Ecological stoichiometry characteristics of soil carbon, nitrogen, and phosphorus of the Robinia pseudoacacia forest on the north-south strip of the Loess Plateau |
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| LI Jiaji,FAN Miaochun and SHANGGUAN Zhouping. Ecological stoichiometry characteristics of soil carbon, nitrogen, and phosphorus of the Robinia pseudoacacia forest on the north-south strip of the Loess Plateau[J]. Acta Ecologica Sinica, 2019, 39(21): 7996-8002 |
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| Authors: | LI Jiaji FAN Miaochun SHANGGUAN Zhouping |
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| Affiliation: | State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest Agriculture and Forestry University, Yangling 712100, China,Institute of Soil and Water Conservation, Chinese Academy of Sciences, Ministry of Water Resources, Yangling 712100, China and State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest Agriculture and Forestry University, Yangling 712100, China |
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| Abstract: | This study collected 12 typical soil samples from the Robinia pseudoacacia forest on the north-south strip of the Loess Plateau to understand the ecological stoichiometric characteristics of its soil carbon (C), nitrogen (N), and phosphorus (P). The contents of soil organic carbon (SOC), total N, and total P were determined, and their ecological stoichiometric characteristics were analyzed. The results showed that the content of SOC, total N, and total P in the Robinia pseudoacacia forest decreased with a decrease in precipitation, including the spatial variation in the SOC and total N. The soil C, N, P, and their ecological stoichiometries were significantly positively correlated with precipitation (P < 0.05), and there was a significantly positive correlation between the total N, C:P, N:P, and soil water content (P < 0.05). |
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| Keywords: | Robinia pseudoacacia stoichiometry soil precipitation Loess plateau |
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