A Jarvis stomatal conductance model under considering soil moisture condition

Abstract

Abstract: In arid and semi-arid area,soil moisture is a vital factor affecting plant stomatal conductance,but was ignored to some extent by most stomatal conductance models which were generally classified into two types,i.e.,Jarvis-type and photosynthesis-conductance type.This paper presented a new model,which adopted the main structure of Jarvis-type and fully considered the importance of soil moisture condition.The stomatal conductance of Leymus chinensis,a dominant species of the typical steppe in Inner-Mongolian grassland,was predicted by the model during two growth seasons(1998～1999),with a precision of R²=0.603,obviously higher than R²=0.361 obtained by regression equations.

Key words: Artificial broad-leaved Korean pine forest, Species diversity, Productivity

CLC Number:

Q147

NIU Haishan, XU Ri, ZHANG Zhicheng, CHEN Zuozhong. A Jarvis stomatal conductance model under considering soil moisture condition[J]. cje, 2005, (11): 1287-1290.

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