Journals
Publish with us
Publishing partnerships
About us
Blog
Advances in Polymer Technology
Journal overview
For authors
For reviewers
For editors
Table of Contents
Special Issues
Advances in Polymer Technology
/
2019
/
Article
/
Tab 2
/
Research Article
Fluorescence Characteristics of Humic Acid in Chinese Black Soil under Long-Term Fertilization
Table 2
Characteristic values and variance contributions from the principal component analysis.
Component
Initial characteristic values
Total
Variance (%)
Cumulative (%)
1
5.59
79.9
79.9
2
0.83
11.8
91.7