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- Title
The Effects of Stand Density Control on Carbon Cycle in Chamaecyparis obtusa (Siebold and Zucc.) Endl. Forests.
- Authors
Lee, Jeong-Gwan; Lee, Du-Hee; Jung, Jun-Young; Lee, Sle-Gee; Han, Seung Hyun; Kim, Seongjun; Kim, Hyun-Jun
- Abstract
This study was conducted to quantify the carbon storage in each pool (including trees, forest floor, and soil) and to analyze the carbon cycle in a Chamaecyparis obtusa (Siebold and Zucc.) Endl. forest according to different thinning intensities. The study site was located in Gochang-gun, Jeollabuk-do, and the treatments consisted of a control (Con), a light thinning (LT), and a heavy thinning (HT), based on 3000 trees originally planted per hectare. As stand density decreased, total C storage decreased, and the annual C storage of trees and C released through soil respiration significantly increased. Net ecosystem production (NEP; Mg·C·ha−1·year−1), as the difference between net primary production and microbial respiration, was 1.95, 2.49, and 2.11 in the Con, LT, and HT treatments, respectively; i.e., the LT stimulated greater NEP than the Con and HT treatments. While these results show that thinning decreases total C storage of forests, proper thinning enhances carbon uptake capacity. In addition, this study can be a basic reference for the effects of thinning on forest carbon cycles. Repeated measurements of each C pool should be performed over multiple years to see the exact movement patterns of forest carbon in the future.
- Subjects
SOIL respiration; FOREST thinning; MICROBIAL respiration; DENSITY; TREE planting; CARBON cycle; ECOSYSTEMS
- Publication
Forests (19994907), 2023, Vol 14, Issue 2, p217
- ISSN
1999-4907
- Publication type
Article
- DOI
10.3390/f14020217