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[1]WANG Min,XU Hailiang,YE Mao,et al.Relationship Between Different Stand Age Populus euphratica’s Radial Growth and Groundwater[J].Research of Soil and Water Conservation,2017,24(01):357-360.

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Relationship Between Different Stand Age Populus euphratica’s Radial Growth and Groundwater

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 24 Number of periods: 2017 01 Page number: 357-360 Column: Public date: 2017-02-28

Title:: Relationship Between Different Stand Age Populus euphratica’s Radial Growth and Groundwater

Author(s):: WANG Min¹, XU Hailiang², YE Mao³, ZHAO Xinfeng², WANG Xiyi¹; 1. Xinjiang Agricultural University, Urumqi 830052, China;
2. State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumuqi 830011, China;
3. Xinjiang Normal University, Urumqi 830017, China

Keywords:: dendrohydrology; suitable water table; sensitivity; radial increment; groundwater depth; halfmature forest; near-mature stand forest

CLC:: Q945;Q948.1

DOI:: -

Abstract:: Populus euphratica is a main adaptive tree species of the Tarim River Basin, and it plays an important role in regional micro-climate regulation. The radial increment is one of the most important indices reflecting the growth status of the Populus euphratica, and the relationship between groundwater level and radial growth is also the focus of the research. Previous studies on the response relation between Populus euphratica and groundwater put the all forest age as a whole, and ignored the differences of different age forests response to groundwater. In order to realize the purpose of quantitative analysis, we selected the Tarim River lower reaches as study area, and radial growth of the different forest ages as the research sample, established functional relationship between these parameters respectively, the sensitive points were obtained by the method of sensitivity analysis. The results showed that: (1) the radial growth of halfmature forest and near-mature stand presented decreasing trend with the decline of groundwater depth; (2) the radial growth of different stand age Populus euphratica response to groundwater was different, which had different response function, but followed 4 times function on the whole. Through sensitivity analysis it was found that the stand age difference led to stress water level and growth arrest water level were different, this study proved that the relationship between different stand ages of Populus euphratica and groundwater was different, therefore, the recovery countermeasure should be different.

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