TY - Data T1 - Heihe comprehensive remote sensing joint experiment: Lai observation data set of Yingke oasis and huazhaizi desert intensive observation area A1 - Zhou Mengwei DO - 10.12072/ncdc.NIEER.db1782.2022 PY - 2022 DA - 2022-03-14 PB - National Cryosphere Desert Data Center AB - This data set is the leaf area index data set of Yingke oasis and huazhaizi desert intensive observation area. Measurement date and content: During May 20, 2008, May 24, 2008, May 25, 2008, May 28, 2008, May 31, 2008, June 6, 2008, June 11, 2008, June 12, 2008, June 14, 2008, June 16, 2008, June 21, 2008, June 27, 2008, July 02, 2008 and July 09, 2008, the structural parameters of vegetation (corn and wheat) were measured with lai3000, protractor and ruler in the dense observation area of Yingke oasis and huazhaizi desert The measurement method is to measure the maximum length and width of each leaf of corn and wheat with a ruler. Divide each leaf into three sections, measure the leaf inclination, and measure the length and width of each section respectively. Measure the plant height and leaf base height of each leaf with a ruler. Measure the distance between N crops (such as 20 crops) on the same ridge with a tape measure to obtain the plant spacing, measure the canopy height at the same time, record multiple data and calculate the average value as the final canopy height. Measure the ridge distance and ridge spacing with a tape measure. Two representative plants were pulled from each sample plot and returned to the room to measure the rod length, rod width and rod circumference, and the longest, widest and area of leaves were measured with lai3000. The data is saved in Excel. DB - NCDC UR - http://www.ncdc.ac.cn/portal/metadata/71befc3b-351e-41f9-8342-0edd92334304 ER -