Palynological data of vegetation evolution since the formation of Heihe River

Since the formation of Heihe River, sporopollen data samples have been collected from the drilling strata of Da'ao well in the middle reaches of Heihe River. Drilling location: 39.491 n, 99.605 E. The drilling depth is 140 meters. 128 samples of sporopollen are collected from top to bottom. At present, there are 19 data of sporopollen results, which are distributed in each sedimentary facies from top to bottom. The sporopollen samples were removed from carbonate, organic matter, silicate and other impurities in the laboratory, and the species and data of sporopollen were identified under the microscope. Sporopollen results mainly include the percentage content and number of trees, shrubs, herbs, aquatic, ferns and other families and genera.

自黑河形成以来，研究人员已从黑河中游的道凹井钻孔岩层中收集了孢粉数据样本。钻孔位置位于北纬39.491度，东经99.605度。钻孔深度达140米。自上而下共收集了128个孢粉样本。目前，已获得19份孢粉分析数据，这些数据按自上而下的顺序分布在各个沉积相中。在实验室中，孢粉样本被从碳酸盐、有机质、硅酸盐及其他杂质中分离出来，并在显微镜下对其种类和数据进行鉴定。孢粉分析结果主要包括树木、灌木、草本、水生、蕨类及其他科属的百分比含量和数量。