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借助树木水文学的方法,文章以对塔里木河下游主要建群植物胡杨年轮的生长量变化进行深入分析。结果显示:塔里木河下游生态输水后,胡杨样枝年轮生长量变化明显,说明输水对胡杨生长量的影响是显著的和积极的;输水后,胡杨年轮生长量表现出明显的时空动态变化规律。胡杨样枝的中部和底部年轮径向生长量之间的相关性很大,主枝顶部和侧枝顶部以及主枝中部和侧枝中部之间的相关性也很大。随着输水时间的延续,样枝胡杨主枝和侧枝径向生长量呈上升趋势;而且胡杨样枝不同部位径向生长量年际变化规律呈上升趋势,这充分说明塔里木河下游实施的生态输水工程对胡杨生长量的影响是显著的和积极的。
Based on the method of tree hydrology, the article makes an in-depth analysis of the change of growth volume of Populus euphratica on the main plantation of the lower reaches of the Tarim River. The results showed that the growth of Populus euphratica var. Annuus was obviously changed after ecological water conveyance in the lower reaches of the Tarim River, indicating that the effects of water conveyance on the growth of Populus euphratica were significant and positive. After the water was transplanted, the annual growth of Populus euphratica showed obvious Time-space dynamic changes. The correlation between the radial growth of the middle and bottom rings of Populus euphratica was quite significant. The correlation between the top of the main branches and the top of the branches and the middle of the branches and the middle of the branches was also great. With the extension of water delivery time, the radial growth of main branch and collateral of Populus simonii increased, and the interannual variation of radial growth of different parts of Populus euphratica showed an upward trend, which fully illustrated the ecological implementation of the lower reaches of Tarim River The impact of water conveyance on the growth of Populus euphratica is significant and positive.