Longterm monitoring of primary productivity of trees
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https://search.dataone.org/view/https://pasta.lternet.edu/package/metadata/eml/knb-lter-cap/255/8
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资源简介：
This project measure tree size parameters four times a year at 51 sites throughout
the Phoenix, Arizona metropholitan area. Rapid SPAD measurements are made once a
year and can be correlated to chlorophyll content of the leaves.
创建时间：
2015-03-11
