%0 Dataset
%T Heihe River comprehensive remote sensing joint experiment: layout of quadrats and transects in Yingke oasis and huazhaizi desert intensive observation area (2008)
%J National Cryosphere Desert Data Center
%I National Cryosphere Desert Data Center(www.ncdc.ac.cn)
%U http://www.ncdc.ac.cn/portal/metadata/f3f33ec4-fea3-40d7-a295-80d44895fc92
%W NCDC
%R 10.12072/ncdc.NIEER.db1761.2022
%A Ren Huazhong
%A Liu qiang
%A Wang jianhua
%K Transect;ground remote sensing;space remote sensing
%X In the dense observation area of Yingke oasis and huazhaizi desert, five key experimental plots, three dense plots and one calibration site of aerial remote sensor were selected. Among them, three key experimental plots are distributed in Yingke oasis, and the surface types are mainly seed corn and wheat; The other two key test plots are located in huazhaizi desert area. The typical features are desert bare soil and vegetation red sand, and there is a significant difference in vegetation coverage between them. The three densified plots are mainly used for the measurement of surface radiation temperature and soil moisture by multi angle infrared and CCD camera in the early stage (before June 8), and there are no measurement data in the later stage.(1) Yingke meteorological station corn field-ykqxzymdThe sample plot is located 8km away from Zhangda highway, with weather station data, is on the 10th flight route, and the size of the sample plot is 180m × 180m。It is mainly a corn field for seed production. There are three wheat fields on the west edge, two of which are closed wheat and the other is intercropping. The terrain in the sample plot is relatively flat, with an irrigation canal in the West and a row of protective forest in the south. The field area is relatively large, but the ridge direction is different. Three corn quadrats and two wheat quadrats were selected according to different land types. Among them, the corn quadrat has seed production corn with different ridge directions. It should be noted that every four whole ridges of seed production corn in the sample plot is a sowing cycle. In each cycle, there are three "mother male female" alternating whole ridges and one only "male female" whole ridge. The width of the whole ridge is about 0.5m, and there is bare soil between the ridges, with a width of 0.5m. When selecting the quadrat, 2m is selected in the ridge direction, and a whole cycle, i.e. 4m, is considered in the vertical ridge direction. Ykqxzymd0