Assessing productivity and carbon sequestration capacity of subtropical coniferous plantations using the process model PnET-CN

Auteur(s) et Affiliation(s)

YAN, Y.

Key lab. of Ecosystem Network Observation and Modeling, Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing, Chine

Graduate Univ. of Chinese Academy of Sciences, Beijing, Chine

WANG, S.

Key lab. of Ecosystem Network Observation and Modeling, Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing, Chine

WANG, Y.

Key lab. of Ecosystem Network Observation and Modeling, Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing, Chine

Graduate Univ. of Chinese Academy of Sciences, Beijing, Chine

Qianyanzhou Ecological Experimental Station, KLENOM, Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing, Chine

WU, W.

Key lab. of Ecosystem Network Observation and Modeling, Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing, Chine

Graduate Univ. of Chinese Academy of Sciences, Beijing, Chine

WANG, J.

Key lab. of Ecosystem Network Observation and Modeling, Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing, Chine

CHEN, B.

School of Geography and Earth Sciences, McMaster Univ., Hamilton, Canada

YANG, F.

Qianyanzhou Ecological Experimental Station, KLENOM, Inst. of Geographic Sciences and Natural Resources Research, CAS, Beijing, Chine

Description :
PnET-CN model describes the biogeochemical cycles of carbon (C) and nitrogen (N) and can assist in estimating carbon sequestration potential. For validation of PnET-CN, data from coniferous forest plantations in southern China was used. The results obtained from the validation test revealed that PnET-CN model can be used to simulate carbon sequestration of planted coniferous forests in southern China to a high level of precision. Sensitivity analysis suggests that great care should be taken in developing generalizations as to how forests will respond to a changing climate. Future improvement of PnET-CN should focus on seasonal foliar N dynamics and the effects of water stress on autotrophic respirations in subtropical coniferous plantations in southern China.

Type de document :
Article de périodique

Source :
Journal of geographical sciences. Acta geographica sinica, issn : 1009-637X, 2011, vol. 21, n°. 3, p. 458-474, nombre de pages : 17, Références bibliographiques : 2 p.

Date :
2011

Editeur :
Pays édition : Chine

Langue :
Anglais