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| DOI | 10.1016/j.foreco.2020.117969 |
| Carbon stock trends of baldcypress knees along climate gradients of the Mississippi River Alluvial Valley using allometric methods | |
| Middleton B. | |
| 发表日期 | 2020 |
| ISSN | 0378-1127 |
| 卷号 | 461 |
| 英文摘要 | Carbon stock trends of the knees of Taxodium distichum likely vary across climate gradients of the southeastern United States and contribute an unknown quantity of “teal” carbon to inland freshwater wetlands. Knee metrics (e.g., density, height, biomass) were measured in mixed T. distichum swamps across the Mississippi River Alluvial Valley (MRAV) from Illinois to Louisiana. Based on their geometric similarity to a cone, the biomasses of field knees were estimated by relating the volume of their measured field dimensions to lab-measured water displacement volume and biomass via volume/mass regressions (biomass (g) = 7.2230149 + 0.292902 × volume). Knees had greater height in flooded conditions (maximum height = 163 cm; Goose Lake, Arkansas), and also in climate normal environments of mid-range precipitation and temperature (p < 0.0001). Overall, knee biomass ha−1 was 7.5 times greater in flooded vs. not flooded conditions (34.6 ± 7.3 vs. 4.6 ± 1.0 Mg ha−1, respectively). The overall mean of knee carbon biomass stock was substantial (flooded vs. not flooded conditions: 18.1 ± 3.7 Mg C ha−1 to 2.9 ± 0.7 Mg C ha−1, respectively; knee/tree live standing biomass: 17.9–5.2%, respectively). Clearly, T. distichum knees should not be ignored in blue (teal) carbon discussions of wetlands. Because knees respond to climate normal conditions, hotter/drier environments in the MRAV could lead to a decline in the contribution of knee carbon stock in the southeastern United States. © 2020 |
| 关键词 | FloodsWetlandsAllometricsCarbon storageLength/mass regressionNon destructiveRoot biomassTaxodium distichumBiomassallometrybelowground biomasscarbon sequestrationcarbon storageconiferous treeenvironmental gradientfreshwater ecosystemBiomassCarbonFloodsHeightTaxodium DistichumUnited StatesVolumeWetlandsArkansasIllinoisLouisianaMississippi RiverUnited StatesAnserTaxodium distichum |
| 语种 | 英语 |
| 来源机构 | Forest Ecology and Management |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/132947 |
| 推荐引用方式 GB/T 7714 | Middleton B.. Carbon stock trends of baldcypress knees along climate gradients of the Mississippi River Alluvial Valley using allometric methods[J]. Forest Ecology and Management,2020,461. |
| APA | Middleton B..(2020).Carbon stock trends of baldcypress knees along climate gradients of the Mississippi River Alluvial Valley using allometric methods.,461. |
| MLA | Middleton B.."Carbon stock trends of baldcypress knees along climate gradients of the Mississippi River Alluvial Valley using allometric methods".461(2020). |
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