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Response of Nitrogen Leaching to Nitrogen Deposition in Disturbed and Mature Forests of Southern China
Fang YunTing1; Yoh M2; Mo JiangMing1; Gundersen P3; Zhou GuoYi1
2009
Source PublicationPEDOSPHERE
ISSN1002-0160
Volume19Issue:1Pages:111
AbstractCurrent nitrogen (N) leaching losses and their responses to monthly N additions were investigated tinder a disturbed pine (Pinus massoniana) forest and a mature monsoon broadleaf forest in southern China. N leaching losses from both disturbed and mature forests were quite high (14.6 and 29.2 kg N ha(-1) year(-1), respectively), accounting for 57% and 80% of their corresponding atmospheric N inputs. N leaching losses were substantially increased following the first 1.5 years of N applications in both forests. The average increases induced by the addition of 50 and 100 kg N ha(-1) year(-1) were 36.5 and 24.9 kg N ha(-1) year(-1), respectively, in the mature forest, accounting for 73.0% and 24.9% of the annual amount of N added, and 14.2 and 16.8 kg N ha(-1) year(-1) in the disturbed forest, accounting for 28.4% and 16.8% of the added N. Great N leaching and a fast N leaching response to N additions in the mature forest might result from long-term N accumulation and high ambient N deposition load (greater than 30 kg N ha(-1) year(-1) over the past 15 years), whereas in the disturbed forest, it might result from the human disturbance and high ambient N deposition load. These results suggest that both disturbed and mature forests in the study region may be sensitive to increasing N deposition.
KeywordSIMULATED N DEPOSITION IMPACTED PINE FOREST INORGANIC NITROGEN ECOSYSTEM RESPONSE HARVARD FOREST MAB RESERVE SATURATION ADDITIONS DYNAMICS FERTILIZATION atmospheric N deposition N addition N leaching loss N saturation subtropical forests
Language英语
Funding Project[National Natural Science Foundation of China] ; [Knowledge Innovation Program of the Chinese Academy of Sciences]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/41803
Collection其他_期刊论文
Affiliation1.中国科学院水生生物研究所
2.Tokyo University Agr & Technol, Fuchu, Tokyo 1838509, Japan
3.University Copenhagen, Fac Life Sci, DK-2970 Horsholm, Denmark
Recommended Citation
GB/T 7714
Fang YunTing,Yoh M,Mo JiangMing,et al. Response of Nitrogen Leaching to Nitrogen Deposition in Disturbed and Mature Forests of Southern China[J]. PEDOSPHERE,2009,19(1):111.
APA Fang YunTing,Yoh M,Mo JiangMing,Gundersen P,&Zhou GuoYi.(2009).Response of Nitrogen Leaching to Nitrogen Deposition in Disturbed and Mature Forests of Southern China.PEDOSPHERE,19(1),111.
MLA Fang YunTing,et al."Response of Nitrogen Leaching to Nitrogen Deposition in Disturbed and Mature Forests of Southern China".PEDOSPHERE 19.1(2009):111.
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