干旱区生态环境知识资源中心(Arid): 培肥措施对旱地农田产量可持续性及土壤有机碳库稳定性的影响

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	培肥措施对旱地农田产量可持续性及土壤有机碳库稳定性的影响
其他题名	Effects of alternative fertilization practices on components of the soil organic carbon pool and yield stability in rain-fed maize production on the Loess Plateau
	王晓娇; 齐鹏; 蔡立群; 陈晓龙; 谢军红; 甘慧炯; 张仁陟
来源期刊	草业学报
ISSN	1004-5759
出版年	2020
卷号	29 期号:10
中文摘要	阐明黄土高原旱作雨养农业区长期不同培肥措施下产量可持续性和有机碳库稳定性对经济和环境友好兼顾的培肥模式筛选具有重要意义。基于2012年设置在陇中黄土高原旱作区的玉米农田长期定位试验,对比了不施肥(CK)、氮肥(NF)、有机肥(OM)、秸秆(ST)、有机肥结合无机肥(OMNF)处理下产量稳定性、可持续性和土壤有机碳、游离态颗粒有机碳、闭蓄态颗粒有机碳、颗粒态有机碳、矿质结合态有机碳及碳库稳定性。研究结果表明:1)不同培肥措施下20 14-2018年平均产量和水分利用效率具有显著差异(P<0.05),OMNF处理具有最高的平均产量、水分利用效率,分别比CK增加了42.75%、 108.73%,同时OMNF处理产量稳定性(0.34)和可持续性指数(0.43)最佳,具有高的增产潜力。2)不同培肥处理均能显著提高不同层次有机碳含量(P<0.05),0~30cm土层有机碳提高幅度为6.80%~18.81%,ST、OM、OMNF等有机物料添加处理均能显著提高各土层土壤游离态颗粒有机碳、闭蓄态颗粒有机碳、颗粒态有机碳和矿质结合态有机碳(P<0.05),0~30cm土层提高幅度分别为5.24%~57.05%、4.3 1%~20.69%、4.72%~25.17%、6.58%~7.95%。不同培肥处理土壤有机碳、游离态颗粒有机碳、闭蓄态颗粒有机碳、颗粒态有机碳的含量均随土层加深而降低,而矿质结合态有机碳含量则随土层加深而增加。3)不同培肥模式下土壤有机碳组分均以矿质结合态有机碳为优势组分(55.60%~ 67.51%),颗粒有机碳以闭蓄态颗粒有机碳为主要组分(19.14%~22.50%)。在0~10cm各土层,OMNF、NF处理土壤碳库稳定性较高 , ST、OM、OMNF处理能促进土壤碳库活性,其他土层变化规律不一致;随土层加深,ST、OM、OMNF处理的碳库稳定性提高。综合来看,OMNF措施可以增加作物产量,提升土壤活力,促进土壤固碳,是该区域玉米种植经济和环境友好兼顾的较好农业生产模式。
英文摘要	This research quantified and explored the sustainability status of various soil carbon fractions under different fertilization regimes in land used for rain-fed maize production on the Loess Plateau in Gansu province, China.Sustainability of crop yield and of soil carbon pools are key considerations in the selection of fertilization practices in rain-fed agricultural areas on the Loess Plateau that are both economical and environmentally friendly.A long-term experiment was set up in 2012on maize-production farmland in the dry farming area of the Loess Plateau in central Gansu.Yield stability and sustainability,soil organic carbon(SOC),free particulate organic carbon(FPOC),occluded particulate organic carbon(OPOC),particulate organic carbon(POC), mineral-associated organic carbon(MOC)and carbon pool stability were compared for 0-5cm,5-10cm and 10-30cm soil depths under five treatments,as follows:no fertilization(CK),nitrogen fertilizer(NF),organic fertilizer(OM),straw (ST)and organic fertilizer combined with nitrogen fertilizer(OMNF).It was found that:1)The average yield and water use efficiency from 2014to 2018differed significantly(P<0.05)under different fertilization practices.OMNF had the highest average yield and water use efficiency(42.75% and 108.73%,respectively,higher than CK).OMNF also had the highest yield stability index(0.34)and sustainability index(0.43),with a high potential for yield increase.2)Compared with CK,the various fertilization treatments significantly increased the organic carbon content in the measured soil layers to 30cm depth by between 6.80%-18.81% (P<0.05).For all three measured soil layers,all treatments(ST,OM and OMNF) significantly improved the FPOC,OPOC,POC and MOC (P<0.05).For the 0-30cm soil depth,the increase range across fertilization treatments for FPOC,OPOC,POC and MOC was,respectively 5.24%- 57.05%,4.31%-20.69%,4.72%-25.17%and 6.58-7.95%.With increasing soil depth,the levels of soil organic carbon,FPOC,OPOC and POC all decreased under all fertilization treatments,while MOC increased. 3)The dominant component of soil organic carbon was MOC (range across fertilization regimes 55.60%- 67.51%),and the main component of POC was OPOC(range 19.14%-22.50%).In the 0-10cm soil layer, OMNF and NF treatments conferred high stability of the soil carbon pool,while ST,OM and OMNF treatments promoted soil carbon pool activity,and patterns of variation of other soil layers were inconsistent.With increasing soil depth,the stability of carbon storage increased under ST,OM and OMNF treatments.Overall, OMNF increased crop yield,enhanced soil vitality and promoted soil carbon sequestration,making this treatment a better agricultural production scenario providing both economic benefit in terms of yield and environmentally friendly maize production in the Loess Plateau arid region.
中文关键词	作物产量 ; 土壤有机碳 ; 颗粒态有机碳 ; 矿质结合态有机碳 ; 旱作农田 ; 培肥措施
英文关键词	crop yield soil organic carbon particulate organic carbon mineral-associated organic carbon rainfed farmland fertilization measures
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6826646
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353360
作者单位	王晓娇, 甘肃农业大学资源与环境学院;;甘肃农业大学管理学院, ;;, 兰州;;兰州, 甘肃;;甘肃 730070;;730070, 中国. 齐鹏, 甘肃农业大学资源与环境学院;;甘肃省节水农业工程技术研究中心, ;;甘肃省节水农业工程技术研究中心, 兰州;;兰州, 甘肃;;甘肃 730070;;730070, 中国. 蔡立群, 甘肃农业大学资源与环境学院;;甘肃省节水农业工程技术研究中心, ;;甘肃省节水农业工程技术研究中心, 兰州;;兰州, 甘肃;;甘肃 730070;;730070, 中国. 张仁陟, 甘肃农业大学资源与环境学院;;甘肃省节水农业工程技术研究中心, ;;甘肃省节水农业工程技术研究中心, 兰州;;兰州, 甘肃;;甘肃 730070;;730070, 中国. 陈晓龙, 甘肃农业大学资源与环境学院, 兰州, 甘肃 730070, 中国. 谢军红, 甘肃农业大学农学院, 兰州, 甘肃 730070, 中国. 甘慧炯, 甘肃农业大学人文学院, 兰州, 甘肃 730070, 中国.
推荐引用方式 GB/T 7714	王晓娇,齐鹏,蔡立群,等. 培肥措施对旱地农田产量可持续性及土壤有机碳库稳定性的影响[J]. 甘肃农业大学,2020,29(10).
APA	王晓娇.,齐鹏.,蔡立群.,陈晓龙.,谢军红.,...&张仁陟.(2020).培肥措施对旱地农田产量可持续性及土壤有机碳库稳定性的影响.草业学报,29(10).
MLA	王晓娇,et al."培肥措施对旱地农田产量可持续性及土壤有机碳库稳定性的影响".草业学报 29.10(2020).