Table 2. Number of published papers related to forest ecology by period.
Classification
The 1
st
period (2001∼2005)
The 2
nd
period (2006∼2010)
The 3
rd
period (2011∼2015)
The 4
th
period (2016∼2020)
Total
Number of papers
99
75
229
148
551
Average yearly papers
19.8
15
45.8
29.6
27.6
Ratio(%)
0.180
0.136
0.416
0.269
1.000