Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2018.11.012 |
The carbon balance of a six-year-old Scots pine (Pinus sylvestris L.) ecosystem estimated by different methods | |
Uri, Veiko1; Kukumagi, Mai2; Aosaar, Jurgen1; Varik, Mats1; Becker, Hardo1; Aun, Kristiina1; Krasnova, Alisa1,2; Morozov, Gunnar1; Ostonen, Ivika2; Mander, Ulo2; Lohmus, Krista2; Rosenvald, Katrin2; Kriiska, Kaie2; Soosaar, Kaido2 | |
2019-02-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2019 |
卷号 | 433页码:248-262 |
文章类型 | Article |
语种 | 英语 |
国家 | Estonia |
英文摘要 | Clear-cutting is a conventional method of forest management which significantly changes carbon (C) cycling at the ecosystem level for a long time. Estimation of the interim period during which the ecosystem turns from a C source to a C sink is crucial for clarifying the environmental effects of management on forest C cycling. The current study provided new knowledge of C cycling in young pine stand and demonstrated the recovery of C sequestration of the forest ecosystem during the post harvesting period. We estimated the C balance in a 6-year-old Scots pine stand by using two different methods: carbon budgeting, for estimating annual net ecosystem production (NEP), and eddy covariance (EC), for estimating net ecosystem exchange (NEE). For C budgeting, the above- and belowground biomass production of the ecosystem, as well as the soil heterotrophic respiration efflux at the studied site was estimated. Annual NEE at the studied young forest ecosystem was 1.19 +/- 0.36 t C ha(-1), gross primary ecosystem production was 9.87 and total ecosystem respiration was 11.06 t C ha(-1). Estimated NEE was in good accordance with the results of NEP (1.37 t C ha(-1)), which confirms the relevance of the C budgeting method. Increased annual woody biomass production is the main factor which induced the young Scots pine ecosystem to act as a C sink: annual C accumulation in tree biomass in a 6-year-old stand was 1.0 t C ha but reached already 2.4 t C ha(-1) in the following year. Assuming that the annual Rh flux is of the same magnitude in the subsequent years, the ecosystem will become a C sink already during a short period after clear-cut. Annual soil respiration (R-h) and heterotrophic soil respiration (R-h) were 6.0 and 4.2 t C ha(-1), respectively and the R-h/R-s ratio was 0.70. However, at this stage also the understorey vegetation contributed essentially to NEP, making up 56% of the annual C uptake accumulated in the plants. The methane flux and the leached C flux were negligible, 0.004 and 0.015 t C ha(-1)yr(-1), respectively. Our results demonstrate that well regenerated young Scots pine stand on a former clear-cut area will be able to turn into a C sequestering ecosystem already before ten years after cutting. |
英文关键词 | Carbon balance Scots pine Eddy covariance Net ecosystem exchange Net ecosystem productivity Soil respiration |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000456902500026 |
WOS关键词 | FINE-ROOT PRODUCTION ; SOIL CO2 EFFLUX ; BIOMASS PRODUCTION ; FOREST SOILS ; NITROGEN ACCUMULATION ; TEMPERATE FOREST ; MANAGED FORESTS ; TRACE GASES ; RESPIRATION ; EXCHANGE |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/22515 |
专题 | 气候变化 |
作者单位 | 1.Estonian Univ Life Sci, Inst Forestry & Rural Engn, Kreutzwaldi 5, EE-51014 Tartu, Estonia; 2.Univ Tartu, Inst Ecol & Earth Sci, Vanemuise 46, EE-51014 Tartu, Estonia |
推荐引用方式 GB/T 7714 | Uri, Veiko,Kukumagi, Mai,Aosaar, Jurgen,et al. The carbon balance of a six-year-old Scots pine (Pinus sylvestris L.) ecosystem estimated by different methods[J]. FOREST ECOLOGY AND MANAGEMENT,2019,433:248-262. |
APA | Uri, Veiko.,Kukumagi, Mai.,Aosaar, Jurgen.,Varik, Mats.,Becker, Hardo.,...&Soosaar, Kaido.(2019).The carbon balance of a six-year-old Scots pine (Pinus sylvestris L.) ecosystem estimated by different methods.FOREST ECOLOGY AND MANAGEMENT,433,248-262. |
MLA | Uri, Veiko,et al."The carbon balance of a six-year-old Scots pine (Pinus sylvestris L.) ecosystem estimated by different methods".FOREST ECOLOGY AND MANAGEMENT 433(2019):248-262. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论