[1]宋亚辉,艾泽民,乔磊磊,等.施肥对黄土高原农地土壤碳氮磷生态化学计量比的影响[J].水土保持研究,2019,26(06):38-45,52.
　SONG Yahui,AI Zemin,QIAO Leilei,et al.Effects of Fertilization on Ecological Stoichiometric Ratio Soil Carbon, Nitrogen and Phosphorus in Farmland of the Loess Plateau[J].Research of Soil and Water Conservation,2019,26(06):38-45,52.
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施肥对黄土高原农地土壤碳氮磷生态化学计量比的影响

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 26 期数: 2019年06期 页码: 38-45,52 栏目: 出版日期: 2019-10-17
Title:
Effects of Fertilization on Ecological Stoichiometric Ratio Soil Carbon, Nitrogen and Phosphorus in Farmland of the Loess Plateau
作者:
宋亚辉1,2, 艾泽民3, 乔磊磊4, 翟珈莹1,2, 李袁泽5, 李秧秧1,4
1. 中国科学院 水利部 水土保持研究所 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西 杨凌 712100;
2. 中国科学院大学, 北京 100049;
3. 西安科技大学 测绘科学与技术学院, 西安 710054;
4. 西北农林科技大学 水土保持研究所, 陕西 杨凌 712100
Author(s):
SONG Yahui1,2, AI Zemin3, QIAO Leilei4, ZHAI Jiaying1,2, LI Yuanze5, LI Yangyang1,4
1. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, CAS & MWR, Yangling, Shaanxi 712100, China;
2. University of Chinese Academy of Sciences, Beijing 100049, China;
3. College and Geomatics, Xi’an University of Science & Technology, Xi’an 710054, China;
4. Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China
关键词:
农地; 施肥; 年限; 土层; 化学计量比
Keywords:
farmland; fertilization; age; soil layer; stoichiometric ratio
分类号:
S153.6+1
摘要:
为了研究不同施肥方式对土壤碳、氮、磷含量和C：N：P的影响，以中国科学院安塞水土保持综合试验站作为试验用地，试验共设氮肥（N）、磷肥（P）、有机肥（M）、氮肥+磷肥（NP）、有机肥+氮肥（MN）、有机肥+磷肥（MP）、有机肥+氮肥+磷肥（MNP）、有作物不施肥（CK）和无作物不施肥（BL）9个处理，采用完全随机区组排列，2011-2013年连续施肥3年，于每年的10月份获取土壤样品供测试分析。结果表明：农地施肥显著影响表层（0-20 cm）和表下层（20-40 cm）土壤碳、氮、磷含量，其中，MP肥配施均能显著提高表层和表下层土壤碳、氮、磷含量，与其CK处理相比分别显著增加了26.9%~55.2%，24.0%~57.5%，10.4%~42.5%。相比于表层土壤，表下层土壤碳、氮、磷含量受施肥年限的影响更为明显。农地施肥显著影响土壤C：P和N：P，以单施M肥或MN配施最为显著；MP肥配施则显著提高了表下层土壤C：P，为14.2%~18.8%。施肥年限对农地表下层土壤C：N：P的影响更为明显，NP或MN肥配施时影响最大。表层与表下层土壤C：N：P之间具有明显差异，单施M肥时二者之间的差异最为显著，分别达到14.5%~16.2%，56.6%~71.9%，46.5%~52.2%。施肥对农地土壤碳、氮、磷含量及其C：N和N：P有显著影响，不同施肥处理对不同土层土壤影响不一致，且随施肥年限增加而变化，总的来说MN或MP配施变化更为明显。
Abstract:
In order to study the effects of different fertilization methods on soil carbon, nitrogen, phosphorus content and soil C:N:P, the experiment was conducted at the Ansai Research Station of Soil and Water Conservation of the Chinese Academy of Sciences. The experiment was consisted of 9 treatments:Nitrogenous fertilizer (N), Phosphate fertilizer (P), Organic manure (M), Nitrogenous fertilizer + Phosphate fertilizer (NP), Nitrogenous fertilizer + Organic manure (MN), Phosphate fertilizer + Organic manure (MP), Nitrogenous fertilizer + Phosphate fertilizer + Organic manure (MNP), crops without fertilization (CK) and no crop or fertilization (BL). All treatments were arranged in a completely randomized block design. Continuous fertilization for three years from 2011 to 2013, and soil samples were randomly collected from each treatment in October of each year after harvest and then prepared for analysis. The farmland fertilization would significantly affected the surface (0-20 cm) and shallow (20-40 cm) soil carbon, nitrogen and phosphorus concentrations, and MP fertilizer application can significantly improve the surface and shallow soil carbon, nitrogen and phosphorus concentrations, when compared CK treatment were increased by 26.9% to 55.2%, 24.0% to 57.5% and 10.4% to 42.5%, respectively. The effects of the age of fertilization on soil carbon, nitrogen and phosphorus concentrations was more obviously in the shallow soil than that in the surface soil. Fertilization had an significantly affected on soil C:P and N:P. MP fertilizer could significantly increase the shallow soil C:P with 14.2% to 18.8%. The effect of the age of fertilization on C:N:P of shallow soil was more obvious, and the effect was the most significant with NP or MN fertilizer. The difference between surface and shallow soil C:N:P were obvious, and the different was the most significant, which reached 14.5% to 16.2%, 56.6% to 71.9% and 46.5% to 52.2%, respectively. Fertilization had a significant influence on farmland soil carbon, nitrogen and phosphorus concentrations, and C:N and N:P. The effect of different fertilization treatments on different soil layers was different, and it was change with the increase of the age of fertilization. The changes were more clearly with the MN or MP fertilizer.

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备注/Memo

收稿日期:2019-01-03;改回日期:2019-02-19。
基金项目:十三五国家重点研发计划（2016YFC0501707）；国家自然科学基金（41771557）
作者简介:宋亚辉(1994-),女,河南焦作人,硕士研究生,研究方向为流域生态学。E-mail:songyahh@163.com
通讯作者:李秧秧(1968-),女,陕西咸阳人,研究员,博士生导师,主要从事植物水分生理生态研究。E-mail:yyli@ms.iswc.ac.cn

更新日期/Last Update: 1900-01-01