Two-dimensional model of Populus euphratica root water uptake in extremely arid region of China.

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Two-dimensional model of Populus euphratica root water uptake in extremely arid region of China.

LI Jian-lin^1,2;FENG Qi²;SI Jian-hua²;CHANG Zong-qiang²;JU Deng-san³;GUO Qiao-ling²

¹Institute of Resource & Environment, Henan Polytechnic University, Jiaozuo 454003, He’nan, China;²Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China;³Administrative Office of Hydrology and Water Resources of the Upper Reaches of the Yellow River, Lanzhou 730000, China

Received:2008-09-22 Revised:1900-01-01 Online:2009-06-10 Published:2009-06-10

Abstract

Abstract: To study the water uptake by Populus euphratica root is of signifi cance for the maintenance and regeneration of P. euphratica and other plants in extremely arid region. Based on the measurements at Ejina Banner, Inner Mong olia of North China, the root system distribution of P. euphratica and the s oil moisture content in P. euphratica root zone were analyzed, and a two-di mensional model of P. euphratica root water uptake was built. The mean relat ive error value between measured and simulated values was 902%, and the maximu m relative error value was 1784%, suggesting that the built model better refle cted the water uptake by P. euphratica root, being available in further stud ying the SPAC of P. euphratica.

Key words: Bactrocera dorsalis, Population dynamics, Xishuangbanna

LI Jian-lin^1,2;FENG Qi²;SI Jian-hua²;CHANG Zong-qiang²;JU Deng-san³;GUO Qiao-ling². Two-dimensional model of Populus euphratica root water uptake in extremely arid region of China.[J]. cje.

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Two-dimensional model of Populus euphratica root water uptake in extremely arid region of China.

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