Long-Term Effect of Manure and Fertilizer on Soil Organic Carbon Pools in Dryland Farming in Northwest China

doi:10.1371/journal.pone.0056536

CORC > 中国农业科学院 > 农业环境与可持续发展研究所 > 旱作节水研究室

	Long-Term Effect of Manure and Fertilizer on Soil Organic Carbon Pools in Dryland Farming in Northwest China
	Liu, Enke 1,2; Yan, Changrong 1,2; Mei, Xurong 1,2; Zhang, Yanqing 1,2; Fan, Tinglu 3
刊名	PLOS ONE
	2013
卷号	8 期号:2 页码:-
ISSN号	1932-6203
DOI	10.1371/journal.pone.0056536
通讯作者	Liu, Enke
英文摘要	An understanding of the dynamics of soil organic carbon (SOC) as affected by farming practices is imperative for maintaining soil productivity and mitigating global warming. The objectives of this study were to investigate the effects of long-term fertilization on SOC and SOC fractions for the whole soil profile (0-100 cm) in northwest China. The study was initiated in 1979 in Gansu, China and included six treatments: unfertilized control (CK), nitrogen fertilizer (N), nitrogen and phosphorus (P) fertilizers (NP), straw plus N and P fertilizers (NP+S), farmyard manure (FYM), and farmyard manure plus N and P fertilizers (NP+FYM). Results showed that SOC concentration in the 0-20 cm soil layer increased with time except in the CK and N treatments. Long-term fertilization significantly influenced SOC concentrations and storage to 60 cm depth. Below 60 cm, SOC concentrations and storages were statistically not significant between all treatments. The concentration of SOC at different depths in 0-60 cm soil profile was higher under NP+FYM follow by under NP+S, compared to under CK. The SOC storage in 0-60 cm in NP+FYM, NP+S, FYM and NP treatments were increased by 41.3%, 32.9%, 28.1% and 17.9%, respectively, as compared to the CK treatment. Organic manure plus inorganic fertilizer application also increased labile soil organic carbon pools in 0-60 cm depth. The average concentration of particulate organic carbon (POC), dissolved organic carbon (DOC) and microbial biomass carbon (MBC) in organic manure plus inorganic fertilizer treatments (NP+S and NP+FYM) in 0-60 cm depth were increased by 64.9-91.9%, 42.5-56.9%, and 74.7-99.4%, respectively, over the CK treatment. The POC, MBC and DOC concentrations increased linearly with increasing SOC content. These results indicate that long-term additions of organic manure have the most beneficial effects in building carbon pools among the investigated types of fertilization.
学科主题	Multidisciplinary Sciences ; MULTIDISCIPLINARY SCIENCES
语种	英语
出版者	PUBLIC LIBRARY SCIENCE
WOS记录号	WOS:000315184200099
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/19863]
专题	农业环境与可持续发展研究所_旱作节水研究室
作者单位	1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing 100193, Peoples R China 2.Minist Agr Peoples Republ China MOA, Key Lab Dryland Farming g Agr, Beijing, Peoples R China 3.Gansu Acad Agr Sci, Dryland Agr Inst, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Liu, Enke,Yan, Changrong,Mei, Xurong,et al. Long-Term Effect of Manure and Fertilizer on Soil Organic Carbon Pools in Dryland Farming in Northwest China[J]. PLOS ONE,2013,8(2):-.
APA	Liu, Enke,Yan, Changrong,Mei, Xurong,Zhang, Yanqing,&Fan, Tinglu.(2013).Long-Term Effect of Manure and Fertilizer on Soil Organic Carbon Pools in Dryland Farming in Northwest China.PLOS ONE,8(2),-.
MLA	Liu, Enke,et al."Long-Term Effect of Manure and Fertilizer on Soil Organic Carbon Pools in Dryland Farming in Northwest China".PLOS ONE 8.2(2013):-.