https://scholars.lib.ntu.edu.tw/handle/123456789/461130
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Cheng C.-H. | en_US |
dc.contributor.author | Chen Y.-S. | en_US |
dc.contributor.author | Huang Y.-H. | en_US |
dc.contributor.author | Chiou C.-R. | en_US |
dc.contributor.author | Lin C.-C. | en_US |
dc.contributor.author | CHIH-HSIN CHENG | en_US |
dc.contributor.author | CHYI-RONG CHIOU | en_US |
dc.creator | Cheng C.-H.;Chen Y.-S.;Huang Y.-H.;Chiou C.-R.;Lin C.-C.;Menyailo O.V. | - |
dc.date.accessioned | 2020-02-19T07:21:21Z | - |
dc.date.available | 2020-02-19T07:21:21Z | - |
dc.date.issued | 2013 | - |
dc.identifier.issn | 21698961 | - |
dc.identifier.uri | https://scholars.lib.ntu.edu.tw/handle/123456789/461130 | - |
dc.description.abstract | Repeated fires might have different effect on ecosystem carbon storage than a single fire event, but information on repeated fires and their effects on forest ecosystems and carbon storage is scarce. However, changes in climate, vegetation composition, and human activities are expected to make forests more susceptible to fires that recur with relatively high frequency. In this study, the effects of repeated fires on ecosystem carbon and nitrogen stocks were examined along a fire-induced forest/grassland gradient wherein the fire events varied from an unburned forest to repeatedly burned grassland. Results from the study show repeated fires drastically decreased ecosystem carbon and nitrogen stocks along the forest/grassland gradient. The reduction began with the disappearance of living tree biomass, and followed by the loss of soil carbon and nitrogen. Within 4 years of the onset of repeated fires on the unburned forest, the original ecosystem carbon and nitrogen stocks were reduced by 42% and 21%, respectively. Subsequent fires caused cumulative reductions in ecosystem carbon and nitrogen stocks by 68% and 44% from the original ecosystem carbon and nitrogen stocks, respectively. The analyses of carbon budgets calculated by vegetation composition and stable isotopic δ13C values indicate that 84% of forest-derived carbon is lost at grassland, whereas the gain of grass-derived carbon only compensates 18% for this loss. Such significant losses in ecosystem carbon and nitrogen stocks suggest that the effects of repeated fires have substantial impacts on ecosystem and soil carbon and nitrogen cycling. Key pointsBoth above and belowground C and N were severely affected by repeated firesEcosystem C and N stocks declined by 68 and 43% of original ecosystem stocksSuch great losses raise concern for C and N cycling and long-term sustainability ©2013. American Geophysical Union. All Rights Reserved. | - |
dc.relation.ispartof | Journal of Geophysical Research: Biogeosciences | - |
dc.subject.classification | [SDGs]SDG13 | - |
dc.subject.other | carbon cycle; carbon isotope; climate change; forest ecosystem; forest fire; grassland; human activity; nitrogen cycle | - |
dc.title | Effects of repeated fires on ecosystem C and N stocks along a fire induced forest/grassland gradient | en_US |
dc.type | journal article | en |
dc.identifier.doi | 10.1002/jgrg.20019 | - |
dc.identifier.scopus | 2-s2.0-84880096060 | - |
dc.identifier.url | https://www2.scopus.com/inward/record.uri?eid=2-s2.0-84880096060&doi=10.1002%2fjgrg.20019&partnerID=40&md5=d61a9425a120c3596b7038da01154a1d | - |
dc.relation.pages | 215-225 | - |
dc.relation.journalvolume | 118 | - |
dc.relation.journalissue | 1 | - |
item.openairecristype | http://purl.org/coar/resource_type/c_6501 | - |
item.openairetype | journal article | - |
item.grantfulltext | none | - |
item.cerifentitytype | Publications | - |
item.fulltext | no fulltext | - |
crisitem.author.dept | Forestry and Resource Conservation | - |
crisitem.author.dept | Forestry and Resource Conservation | - |
crisitem.author.dept | Biodiversity Research Center | - |
crisitem.author.dept | Master's Program in Biodiversity (MPB) | - |
crisitem.author.orcid | 0000-0001-5249-9817 | - |
crisitem.author.parentorg | College of Bioresources and Agriculture | - |
crisitem.author.parentorg | College of Bioresources and Agriculture | - |
crisitem.author.parentorg | Others: University-Level Research Centers | - |
crisitem.author.parentorg | International College | - |
顯示於: | 森林環境暨資源學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。