TY  - Data
T1  - Heihe River eco hydrological remote sensing experiment: chlorophyll observation data set in the middle reaches of Heihe River Basin (may July 2012)
A1  - Wang jing
A1  - Li xin
A1  - Ma mingguo
DO  - 10.12072/ncdc.nieer.db3002.2023
PY  - 2021
DA  - 2021-08-31
PB  - National Cryosphere Desert Data Center
AB  - This data set is the chlorophyll data of maize leaves measured by chlorophyll meter (SPAD) in Daman water control experimental field, EC station, super station and Shiqiao sample plot in Zhangye City. 1) Measurement purpose The purpose of chlorophyll data measurement is to obtain the chlorophyll content of crop leaves on the underlying surface in Heihe River Basin and apply it as a parameter to the vegetation radiative transfer model and the inversion of other biophysical parameters. 2) Measuring instrument and principle Measuring instrument: chlorophyll meter (SPAD). 3) Survey location and content a. Daman wheat water control experimental field The chlorophyll content of Wheat Leaves under 12 water treatments was measured on May 17, 2012, May 23, 2012, May 29, 2012, June 3, 2012, June 9, 2012, June 14, 2012, June 24, 2012, July 5, 2012 and December 27, 2012, respectively. b. EC site The chlorophyll content of seed maize leaves was measured at 14 EC stations, including EC-2, ec-3, EC-5, ec-6, ec-7, ec-9, EC-10, ec-11, EC-12, ec-13, ec-14, ec-15 and ec-16, on May 14, 2012, 2012, 2012-5-21, 2012-5-25, 2012-5-31, 2012-6-7, 2012-6-13, 2012-6-13, 2012-7-18, 2012-7-23, 2012-8-3, 2012-8-12 and 2012-8-28, respectively. c. Super station plot The chlorophyll content of maize leaves was measured at super stations on May 22, 2012, May 28, 2012, June 5, 2012, June 11, 2012, June 18, 2012, June 25, 2012, July 1, 2012, July 8, 2012, July 15, 2012, July 22, 2012, July 31, 2012, August 9, 2012, August 15, 2012, August 22, 2012, September 3, 2012 and September 11, 2012. d. Shiqiao sample plot The chlorophyll content of leaves of seed maize was measured in Shiqiao sample plots on May 17, 2012, may 22, 2012, May 28, 2012, June 4, 2012, June 11, 2012, June 17, 2012, June 25, 2012, July 1, 2012, July 8, 2012, July 15, 2012, July 22, 2012, July 30, 2012, August 8, 2012, August 16, 2012, August 27, 2012 and September 9, 2012. 4) Data processing At the experimental site, the observation dat
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/b0a44f21-0034-4c06-ae29-6a7f9e6e50c7
ER  -