Soil C:N:P stoichiometry in plantations of N-fixing black locust and indigenous pine, and secondary oak forests in Northwest China

doi:10.1007/s11368-017-1884-0

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	Soil C:N:P stoichiometry in plantations of N-fixing black locust and indigenous pine, and secondary oak forests in Northwest China
	Chen, YM (reprint author), Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.; Yang Cao 1,2; Ping Zhang 3; Yunming Chen 1,2; Chen, YM (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
刊名	JOURNAL OF SOILS AND SEDIMENTS
	2018
卷号	18 期号:4 页码:1478-1489
关键词	Forest Types Northwest China Soil Nutrient Status Spatial Variability Vertical Distribution
ISSN号	1439-0108
DOI	10.1007/s11368-017-1884-0
文献子类	Article
英文摘要	Soil nutrient concentrations and stoichiometry are important indicators of plant growth, terrestrial productivity, and ecosystem functioning. Nevertheless, little is known about the vertical distribution and the environmental factors influencing the spatial patterns of different forest types under the "Grain for Green" program and the "Natural Forest Resources Protection" project in Northwest of China. We collected 114 soil profile samples within a 0-100-cm depth from black locust and Chinese pine plantations, and secondary oak forests. We determined the vertical distributions of soil organic carbon (SOC), total nitrogen (TN), total phosphorus (TP), and their ratios along environmental gradients in Shaanxi Province, Northwest China. The results showed that both SOC and TN concentrations decreased exponentially within the soil profiles of the three forest types, but there was minimal change in TP. Significant differences in SOC, TN, and TP were found in the surface soil layers among the forest types. Both SOC and TN were relatively low in the N-fixing black locust plantations and TP was comparatively low in the Chinese pine plantations. The C:N:P ratios decreased with increasing soil depth for the three forest types. These ratios were comparatively high in the Chinese pine plantations, relatively low in the black locust plantations, and moderate in the oak forests. The differences in the ratios among the three forest types were more significant in surface soil than in deep soil. Precipitation was positively correlated with the concentrations of SOC and TN and the ratios of C:N:P. Temperature was negatively correlated with concentrations of SOC and TN and the ratios of C:N:P across all soil depths. A log-transformed linear C-N relationship was found for all three forest types, suggesting a well-constrained coupling between the levels of the two elements. Our results demonstrated the effect of different tree species on soil C:N:P ratios and their controlling factors within soil profiles along environmental gradients. The secondary oak forest accumulated soil C and N more effectively than the plantations. The Chinese pine plantations were relatively more susceptible to P limitation. Therefore, the mechanism of different plant species on soil biogeochemical processes at the whole soil profile level must be considered when developing forest management strategies and implementing vegetation restoration projects.
学科主题	Environmental Sciences & Ecology ; Agriculture
出版地	TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000428619800025
资助机构	National Key R&D Program of China [2016YFC0501703] ; National Key R&D Program of China [2016YFC0501703] ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; National Nature Science Foundation of China [41371506, 41201088] ; National Nature Science Foundation of China [41371506, 41201088] ; National Key R&D Program of China [2016YFC0501703] ; National Key R&D Program of China [2016YFC0501703] ; CAS "Light of West China" Program ; CAS "Light of West China" Program ; National Nature Science Foundation of China [41371506, 41201088] ; National Nature Science Foundation of China [41371506, 41201088]
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/8273]
专题	水保所科研产出--SCI_2018--SCI
通讯作者	Chen, YM (reprint author), Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.; Chen, YM (reprint author), Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 3.Northwest A&F Univ, Coll Forestry, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Chen, YM ,Yang Cao,Ping Zhang,et al. Soil C:N:P stoichiometry in plantations of N-fixing black locust and indigenous pine, and secondary oak forests in Northwest China[J]. JOURNAL OF SOILS AND SEDIMENTS,2018,18(4):1478-1489.
APA	Chen, YM ,Yang Cao,Ping Zhang,Yunming Chen,&Chen, YM .(2018).Soil C:N:P stoichiometry in plantations of N-fixing black locust and indigenous pine, and secondary oak forests in Northwest China.JOURNAL OF SOILS AND SEDIMENTS,18(4),1478-1489.
MLA	Chen, YM ,et al."Soil C:N:P stoichiometry in plantations of N-fixing black locust and indigenous pine, and secondary oak forests in Northwest China".JOURNAL OF SOILS AND SEDIMENTS 18.4(2018):1478-1489.