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周宏权, 吴梁厚. 甘蒙柽柳径向生长对环境变化的响应[J/OL]. 四川林业科技, 2024, 45[2024-07-11]. DOI: 10.12172/202403310001
引用本文: 周宏权, 吴梁厚. 甘蒙柽柳径向生长对环境变化的响应[J/OL]. 四川林业科技, 2024, 45[2024-07-11]. DOI: 10.12172/202403310001
ZHOU H Q, WU L H. Response of radial growth of Tamarix austromongolica to environmental change[J/OL]. Journal of Sichuan Forestry Science and Technology, 2024, 45[2024-07-11]. DOI: 10.12172/202403310001
Citation: ZHOU H Q, WU L H. Response of radial growth of Tamarix austromongolica to environmental change[J/OL]. Journal of Sichuan Forestry Science and Technology, 2024, 45[2024-07-11]. DOI: 10.12172/202403310001

甘蒙柽柳径向生长对环境变化的响应

Response of radial growth of Tamarix austromongolica to environmental change

  • 摘要: 甘蒙柽柳(Tamarix austromongolica)具有极强的环境适应性,是干旱半干旱地区重要的防风固沙植被。生长在即将建成的羊曲水电站淹没区的乔木状柽柳林移植保护问题曾引发关注。该研究运用气候年轮学方法,分析了研究区环境变化特征、被移植甘蒙柽柳的生长状况及二者之间的关系及其在时间上的稳定性。研究发现该地区气候呈“暖湿化”趋势,径流数据在1990年后呈显著增加趋势,被移植甘蒙柽柳生长状况良好。前一年12月、当年7月、当年8月、当年9月降水对甘蒙柽柳径向生长有促进作用,当年3月、当年5月降水起抑制作用;当年8月气温对甘蒙柽柳径向生长起抑制作用,当年9月气温起促进作用;径流对柽柳径向生长起促进作用;甘蒙柽柳径向生长与环境关系在时间上不稳定。

     

    Abstract: With strong environmental adaptability, Tamarix austromongolica is an important species of trees for soil and water conservation in arid and semi-arid areas. The protection of T. austromongolica in transplanting way in the inundated area of Yangqu Hydropower Station, which will be built soon, has been widely concerned. In this study, the characteristics of environmental change, the growth of transplanted T. austromongolica, the relationship of them and its stability in time were analyzed by the method of dendroclimatology. It was found that the climate in this area showed a trend of "warming-wetting". The runoff data showed a significant increase trend after 1990. The transplanted T. austromongolica was growing well. The radial growth of T. austromongolica was promoted by the precipitation in December of the previous year , July, August and September, but inhibited by the precipitation in March and May. The higher the temperature in August, the worse in the radial growth of T. austromongolica. The higher the temperature in September, the better in the radial growth of T. austromongolica. More runoff was good for the radial growth of T. austromongolica. The relationship between radial growth and environment of T. austromongolica was unstable in time.

     

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