干旱区生态环境知识资源中心(Arid): 长期定位施肥对土壤有机碳和微生物量碳的影响

Arid

	长期定位施肥对土壤有机碳和微生物量碳的影响
其他题名	Effect of Long-term Fertilization on Soil Organic Carbon and Microbial Biomass Carbon
	董博 1; 张东伟 2; 郭天文 3; 曾骏 2; 包兴国 2
来源期刊	土壤通报
ISSN	0564-3945
出版年	2012
卷号	43 期号:6 页码:1467-1472
中文摘要	利用武威市白云试验站20年长期定位试验,研究了不同施肥条件下,土壤有机碳和微生物量碳在0 ~ 50 cm土层分布特征。结果表明:化肥、有机肥长期配合施用和长期施用有机肥可以在0 ~ 30 cm土层增加土壤有机碳含量。单施肥料,有机碳含量表现为农肥>绿肥>秸秆>氮肥;两种肥料配合施用表现为农肥+绿>农肥+秸>农肥+N>秸+N>绿+N;两种以上肥料配合施用表现为农肥+N+秸>农肥+N+秸+绿>农肥+ N +绿。施肥可以增加表层土壤中微生物数量;有机肥+化肥混施、单施有机肥对提高土壤中微生物量碳含量的作用较单施化肥更为显著,而化肥与有机肥配施中又以农+ N +绿对土壤微生物碳的影响最大;单施有机肥又以农肥对土壤微生物量碳的影响最大。土壤微生物量碳与土壤有机碳呈显著的正相关,可作为评价长期土壤培肥过程中土壤质量变化的生物学指标。
英文摘要	Effect of long-term fertilization on soil organic carbon and microbial biomass carbon in the 0 ~ 50 cm soil layer was explored through a 20-year-old experiment in irrigated desert soil at Baiyun experiment station in Wuwei county. The results showed that long-term application of chemical and organic fertilizer combination or single application of organic fertilizer could increase organic carbon content in 0 ~ 30cm layer of soil. The effects of single organic fertilization ranked as farm manure > green manure > straw > N; the combined fertilization ordered as manure + Green > manure + straw > manure e + N > straw + N > Green + N; the combined application with more than two kinds of fertilizers arranged as farmers+ N + straw > manure + N + straw + green > manure + N + Green. Fertilization treatment could increase soil microbial quantity; organic + fertilizer combined, sole application of organic fertilizer could improve soil fertility and enhance soil microbial biomass carbon; the effect of manure + N + green was the greatest among all treatments under the chemical and organic fertilizer combination. The effect of manure was greatest on soil microbial biomass carbon amount in treatments with sole application of organic fertilizers. Soil microbial biomass carbon was positively correlated with soil organic carbon, and it could be used to assess soil quality changes in the process of long-term soil fertility buildup.
中文关键词	长期施肥 ; 土壤有机碳 ; 土壤微生物量碳
英文关键词	Long-term fertilization Soil organic carbon Soil microbial biomass carbon
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4691709
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/228672
作者单位	1.甘肃省农业科学院旱地农业研究所, 农业部西北作物抗旱栽培与耕作重点实验室, 兰州, 甘肃 730070, 中国; 2.甘肃省农业科学院旱地农业研究所, 兰州, 甘肃 730070, 中国; 3.甘肃省农业科学院旱地农业研究所, 甘肃省旱作区水资源高效利用重点实验室, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	董博,张东伟,郭天文,等. 长期定位施肥对土壤有机碳和微生物量碳的影响[J],2012,43(6):1467-1472.
APA	董博,张东伟,郭天文,曾骏,&包兴国.(2012).长期定位施肥对土壤有机碳和微生物量碳的影响.土壤通报,43(6),1467-1472.
MLA	董博,et al."长期定位施肥对土壤有机碳和微生物量碳的影响".土壤通报 43.6(2012):1467-1472.