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[目的]研究塔里木河中游柽柳属地上生物量分布规律,并求出柽柳属地上生物量估算的最佳模型。[方法]利用最常用的取样方法—PCQ方法,在塔里木河中游的5个样带进行取样。在野外调查工作的基础上,利用Evangelista等的模型,建立了适合该地区柽柳属的线性回归模型,并分析了塔里木河中游柽柳属地上生物量分布规律。[结果]所建模型适合该研究区柽柳地上生物量的估算。从地上生物量分布规律可知,地下水是决定该地区柽柳地上生物量分布的关键生态因子。[结论]为柽柳属植物生物量估算研究提供了理论依据。
[Objective] The research aimed to study the distribution law of aboveground biomass of Tamarix L. in the middle reaches of Tarim River and to find the best model for estimating the aboveground biomass of Tamarix L.. [Method] Sampling was carried out in 5 transects in the middle reaches of the Tarim River by using the most commonly used sampling method - PCQ method. Based on the field investigation, the linear regression model of Tamarix was established by using the model of Evangelista et al. And the distribution of aboveground biomass of Tamarix L. in the middle reaches of the Tarim River was analyzed. [Result] The model was suitable for estimating the aboveground biomass of Tamarix chinensis in this study area. According to the distribution law of aboveground biomass, groundwater is the key ecological factor that determines the aerial biomass distribution of Tamarix chinensis in this area. [Conclusion] This provided the theoretical basis for the estimation of plant biomass of Tamarix.