塔里木河流域中下游胡杨林更新复壮的研究现状及展望

Research Status and Prospect of Regeneration and Rejuvenation of Populus euphratica in the Middle and Lower Reaches of the Tarim River Basin

摘要: 由于气候变化、人口剧增和对自然资源的不合理利用，塔里木河流域中下游胡杨林的面积日益锐减，其主要的生态服务功能也大大减弱，急需生态恢复。本文对国内外胡杨林更新复壮的研究现状进行了梳理和总结，以新疆塔里木河流域中下游为例，对未来胡杨林更新复壮的研究发展进行了展望。认为胡杨林的更新复壮不仅需要对胡杨的根系、土壤进行研究，还要结合每年泛洪之后土壤盐分的变化以及河床来水规律对胡杨更新的影响，利用河床沉积物中水的温度随深度和时间的连续监测提供一系列的剖面，研究温度包裹面对地表水与地下水相互作用过程对胡杨更新影响，探讨胡杨林更新复壮的最佳水土条件。研究结果可为今后的胡杨林更新复壮研究工作奠定科学基础。

Abstract: Due to climate change, dramatic increase in population, and irrational use of natural resources, the area of Populus euphratica forest in the middle and lower reaches of the Tarim River Basin has been declining sharply, and its major ecological service functions have also been greatly reduced. Ecological restoration is urgently needed. In this paper, the research status of the renewal and rejuvenation of Populus euphratica forests at home and abroad is reviewed and summarized. Taking the middle and lower reaches of the Tarim River Basin in Xinjiang as an example, the prospects for the future research and development of Populus euphratica forest renewal and rejuvenation are presented. It is believed that the regeneration and regeneration of Populus euphratica need not only the study of the root system and soil of Populus euphratica, but also the combination of changes in soil salinity after flooding every year, and the effects of riverbed water law on the renewal of Populus euphratica, using the temperature of the water in the sediment of the river bed with depth and time. The continuous monitoring provides a series of profiles to study the effect of temperature parcels on the renewal of Populus euphratica in the interaction process between surface water and groundwater, and to discuss the optimal soil and water conditions for regeneration and regeneration of Populus euphratica. The research results can lay a scientific foundation for future research on the regeneration and rejuvenation of Populus euphratica.