Biomass and Soil Carbon Stocks in Wet Montane Forest, Monteverde Region, Costa Rica: Assessments and Challenges for Quantifying Accumulation Rates

Table 2

Soil carbon data and carbon stocks for mature and secondary forest and clearings at Monteverde Institute (MVI) and La Calandria (LC), with mean C% (first line) and soil carbon stock calculated as described in text in tC ha⁻¹ (second line) for each 10 cm increment in soil for each site. Bottom line is total carbon stock (soil carbon plus AGB) for each setting tC ha⁻¹.

Interval	MVI	LC	MVI	LC	MVI	LC
0–10	20.5 2.8	14.8 1.3	10.2 1.2	9.3 0.7	8.2 1.4	7.0 0.4
	143.5 19.6	103.6 9.1	71.4 8.5	65.0 4.9	73.8 12.6	63.0 3.6
10–20	13.0 1.4	11.1 0.8	7.6 2.4	6.3 0.8	5.3 1.4	5.5 0.2
	97.5 10.5	83.3 6.0	57.0 18	47.4 6.0	50.4 13.3	52.3 1.9
20–30	7.7 1.6	6.9 0.9	4.7 0.5	5.5 0.5	4.1 0.2	5.3 2.8
	61.6 12.8	55.2 7.2	37.6 4.0	44.0 4.0	41 2.1	53.0 3.0
Total C	302.6 42.9	242.1 22.3	166.0 30.5	156.4 11.0	165.2 27.9	168.3 8.5
Total C	522.0 94.7	318.4 33.6	168.5 31.3	167.6 15.9	165.2 27.9	168.3 8.5