TY  - Data
T1  - Heihe comprehensive remote sensing joint test: Poplar quadrat survey data set in the encrypted observation area of Linze station (June 2008)
A1  - Song Yi
DO  - 10.12072/ncdc.NIEER.db1815.2022
PY  - 2022
DA  - 2022-03-14
PB  - National Cryosphere Desert Data Center
AB  - From June 3 to June 13, 2008, the sample survey of poplar forest was carried out in the intensive observation area of Linze station. The main contents of the survey include:  1. Soil profile; Soil stratification: 5 layers in total, 0-5cm, 0-5cm, 10-20cm, 20-40cm and 40-60cm, with photos. Observation items: soil moisture and soil temperature. Observation method and sampling quantity: the ring knife method is used for soil moisture (the volume of the ring knife is 50cm ^ 3), with 2 repetitions for each layer; Ml2x soil moisture quick tester, once for each layer; The soil temperature shall be measured by American 6310 needle soil thermometer (15cm), with 2 repetitions for each layer. Data storage: Excel. Measurement time: June 3, 2008.  2. Surface soil moisture; Observation item: soil moisture. Soil stratification: 0-5cm. Observation method and sampling quantity: the ring knife method is used for soil moisture (the volume of the ring knife is 50cm ^ 3), once for each point; Ml2x soil moisture meter, 2 repetitions per point. Measuring points: 13. Data storage: Excel. Measurement time: June 4, 2008.  3．LAI； Measuring instrument: trac. Data storage: Excel. Measurement time: July 20, 2008.  4. Roughness. Measuring instrument: roughness board and ordinary digital camera made by the remote sensing room of cold and drought Institute. Number of samples: 18. Survey route: schematic diagram of poplar quadrat. doc。 Data storage: JPG pictures.  5. Survey of each wood; Family and genus: two white poplars. Observation items and instruments: coordinates (tape), DBH (tape), tree height (trupulse200 laser ranging altimeter), crown width (tape). Number of samples: 408. Data storage: Excel. Survey time: June 5-13, 2008.  Please refer to metadata "Heihe integrated remote sensing joint test: layout of quadrat transects in dense observation area of Linze station" for the distribution and numbering of quadrat transects, and see the quadrat transect coordinates.xls in dense observation area o
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/a6edb017-8193-4540-910c-c3e04bf8c41a
ER  -