Impacts of forest types on soil C, N and DOC loss in runoff in the laterite hilly region of southern China
Sun, LY; Yang, FT; Wang, JY; Fang, HY; Qi, JY
2015
Source PublicationENVIRONMENTAL EARTH SCIENCES
ISSN1866-6280
Volume74Issue:2Pages:1391-1402
AbstractForest plantations significantly impact soil properties and hydrological processes. Field investigation was carried out to provide insight into the impacts of three forest types (Cunninghamia lanceolata, Pinus elliottii, and mixed forest of Schima superba and Cyclobalanopsis jenseniana) on soil organic carbon (SOC), total nitrogen (TN) and the removal of dissolved organic carbon (DOC) by runoff. SOC and TN contents were measured in soils (0-50 cm) under three forest types on both uphill and downhill. Runoff samples were collected and DOC concentrations were analyzed after 27 erosive rainfalls during the period of April 2011 to April 2012. Results showed that the lowest contents of SOC and TN in top soil layer (0-10 cm) were observed in pure C. lanceolata stands. Vertical distributions of SOC and TN in pure C. lanceolata and pure P. elliottii followed negative power functions on downhill (P < 0.005), while those in mixed S. superba and C. jenseniana followed negative exponential functions on downhill (P < 0.005). DOC concentrations showed no significant correlation with runoff, and the average values were following the order of mixed S. superba and C. jenseniana > C. lanceolata > P. elliottii in 27 erosion rainfall events. The runoff and DOC loss density (DOCld) showed significantly positive correlations with throughfall (P < 0.001) and their average values followed the same order as C. lanceolata > mixed S. superba and C. jenseniana > P. elliottii. The lowest SOC content and the highest DOCld value were observed in pure C. lanceolata stands, which should be well considered when the large-scale reforestation was conducted in the laterite hilly region of southern China.
SubtypeJournal
KeywordReforestation Tree species Throughfall Soil organic carbon Runoff
Subject AreaEnvironmental Sciences & Ecology ; Geology ; Water Resources
WOS Subject ExtendedEnvironmental Sciences ; Geosciences, Multidisciplinary ; Water Resources
WOS KeywordDISSOLVED ORGANIC-CARBON ; MID-SUBTROPICAL CHINA ; LITTER DECOMPOSITION ; LAND-USE ; CUNNINGHAMIA-LANCEOLATA ; NUTRIENT RETURN ; NITROGEN POOLS ; LOESS PLATEAU ; OVERLAND-FLOW ; STREAM WATER
Indexed BySCI
Language英语
WOS IDWOS:000356871500045
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/44400
Collection生态系统网络观测与模拟院重点实验室_生态网络实验室
Recommended Citation
GB/T 7714
Sun, LY,Yang, FT,Wang, JY,et al. Impacts of forest types on soil C, N and DOC loss in runoff in the laterite hilly region of southern China[J]. ENVIRONMENTAL EARTH SCIENCES,2015,74(2):1391-1402.
APA Sun, LY,Yang, FT,Wang, JY,Fang, HY,&Qi, JY.(2015).Impacts of forest types on soil C, N and DOC loss in runoff in the laterite hilly region of southern China.ENVIRONMENTAL EARTH SCIENCES,74(2),1391-1402.
MLA Sun, LY,et al."Impacts of forest types on soil C, N and DOC loss in runoff in the laterite hilly region of southern China".ENVIRONMENTAL EARTH SCIENCES 74.2(2015):1391-1402.
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