TY - Data T1 - Pollen size data sets of different Gramineae in Heihe River Basin (2011-2012) A1 - Huang Xiaozhong DO - 10.12072/ncdc.973Desert.db0019.2020 PY - 2021 DA - 2021-01-05 PB - National Cryosphere Desert Data Center AB - This data set includes five farmland sample plots of wheat field (6 samples), barley field, highland barley field, corn field and millet field, three natural sample plots of spruce forest (3 samples), alpine meadow (2 samples) and wetland, topsoil samples of donghuishan archaeological site (2 samples), and anthers of wheat, barley, highland barley and Agropyron. The maximum diameter of gramineous pollen was measured by a unified pretreatment method, and the grain size was divided into 43 grain size intervals according to the fixed interval of 2.5um, and the percentage content of each sample in each grain size interval was calculated, so as to determine the distribution range of grain size of different types of gramineous pollen. The data were collected from wheat field, barley field and other types of farmland, spruce forest, alpine meadow and other natural vegetation zones, as well as crop anthers and weed anthers in wasteland in the upper reaches of Heihe River Basin, northwest arid regionThe data set contains two tables: (1) the original data of pollen grain size of different types of Gramineae; (2) the percentage data of pollen grain size of different types of Gramineae DB - NCDC UR - http://www.ncdc.ac.cn/portal/metadata/c81cd997-137f-46b3-b227-f845176d7f57 ER -