以植物多样性变化研究生态水科学配置

Exploring Ecological Water Science Allocation Based on Plant Diversity Changes

生态输水是塔里木河下游“绿色走廊”保护的重要举措,分析河水漫溢对“绿色走廊”植物多样性的影响是评估生态修复成效的关键。以塔里木河下游(含湖区)为研究对象,基于近22 a野外监测数据,定量分析生态输水对漫溢区植物多样性的变化特征。结果表明:河岸带与湖区植物多样性好转在前期输水阶段就已实现,入湖水量与植物多样性关系不大,后期即使入湖水量持续增大,植物多样性水平几乎无提升空间。建议为提高生态水利用效率,提出应优化目前的生态输水方向。

Ecological water conveyance is an important measure to protect the"Green Corridor"in the lower reaches of Tarim River.Analyzing the impact of river overflow on plant diversity in the"Green Corridor"is the key to evaluating the effectiveness of ecological restoration.Taking the lower reaches of the Tarim River(including the lake area)as the research object,based on the field monitoring data in the past 22 years,quantitative analysis was made on the change characteristics of ecological water transport on plant diversity in the overflow area.The results showed that the improvement of plant diversity in Riparian zone and lake area had been realized in the early stage of water transportation.The amount of water entering the lake is not closely related to plant diversity,and even if the amount of water entering the lake continues to increase in the later stage,there is almost no room for improvement in plant diversity levels.It is recommended to optimize the current direction of ecological water transportation in order to improve the efficiency of ecological water utilization.