Climate Change Data Portal
DOI | 10.1016/j.foreco.2019.117708 |
Soil carbon and nitrogen pools, their depth distribution and stocks following plantation establishment in south east Queensland, Australia | |
Wehr J.B.; Lewis T.; Dalal R.C.; Menzies N.W.; Verstraten L.; Swift S.; Bryant P.; Tindale N.; Smith T.E. | |
发表日期 | 2020 |
ISSN | 0378-1127 |
卷号 | 457 |
英文摘要 | Changes in land use affect the soil organic carbon (SOC) stocks and pools. This is currently of great interest as soils are a major pool of carbon in the biosphere and can sequester atmospheric carbon. This study investigated the effect of pasture conversions into reforestation or cropping land on SOC, humic organic C (HOC), particulate organic C (POC) and resistant organic C (ROC) stocks, and soil nitrogen, to 0.5 m depth using mid infrared spectroscopy and combustion analyses. The ten study sites in south east Queensland, Australia were cleared of native vegetation to pasture decades earlier and were more recently (6–19 years ago) converted to either forest plantations (eucalypts) or cropping land. The SOC was significantly affected by land use and site location. Conversion of pasture to forest plantation had no significant effect on SOC compared to pasture up to 19 years since reforestation, but SOC increased slightly with plantation age at a rate of 3.03 t ha−1 per year. Conversion of pasture to cropping land significantly decreased SOC. The stocks of SOC ranged from 47.0 to 107.6 t ha−1. The HOC pool contributed the most towards the total SOC, and ranged from 17.7 to 67.8 t ha−1 across all sites. The POC pool ranged from 2.1 to 17.8 t ha−1 and the ROC pool varied between 5.3 and 22.3 t ha−1. The total SOC stock determined by MIR was closely related to SOC determined by dry combustion analysis. Soil N was significantly affected by land use and location, but trends were not consistent. On pasture sites, total N was higher likely due to fertiliser applications and total N ranged between 3.7 and 15.0 t ha−1 across sites. In summary, conversion of pasture to forest plantation had no significant effect on SOC stocks and different soil carbon pools over 19 years in the subtropical climate of south east Queensland. © 2019 Elsevier B.V. |
英文关键词 | Cropping; Land use; Mid infrared spectroscopy; Pasture; Reforestation |
语种 | 英语 |
scopus关键词 | Combustion; Infrared devices; Infrared spectroscopy; Lakes; Land use; Nitrogen; Reforestation; Soils; Combustion analysis; Cropping; Depth distribution; Mid-infrared spectroscopy; Pasture; Plantation establishment; Soil organic carbon; Subtropical climates; Organic carbon; biosphere; combustion; fertilizer; infrared spectroscopy; land use change; nitrogen; pasture; reforestation; soil carbon; soil organic matter; vertical distribution; Combustion; Infrared Spectroscopy; Lakes; Land Use; Nitrogen; Reforestation; Australia; Queensland |
来源期刊 | Forest Ecology and Management
![]() |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/155580 |
作者单位 | The University of Queensland, School of Agriculture and Food Sciences, St Lucia, Qld 4072, Australia; Department of Agriculture and Fisheries, Queensland Government, University of Sunshine Coast, Sippy DownsQLD 4556, Australia; University of Sunshine Coast, Sippy DownsQLD 4556, Australia; Department of Agriculture and Fisheries, Queensland Government, Gympie, QLD 4570, Australia |
推荐引用方式 GB/T 7714 | Wehr J.B.,Lewis T.,Dalal R.C.,et al. Soil carbon and nitrogen pools, their depth distribution and stocks following plantation establishment in south east Queensland, Australia[J],2020,457. |
APA | Wehr J.B..,Lewis T..,Dalal R.C..,Menzies N.W..,Verstraten L..,...&Smith T.E..(2020).Soil carbon and nitrogen pools, their depth distribution and stocks following plantation establishment in south east Queensland, Australia.Forest Ecology and Management,457. |
MLA | Wehr J.B.,et al."Soil carbon and nitrogen pools, their depth distribution and stocks following plantation establishment in south east Queensland, Australia".Forest Ecology and Management 457(2020). |
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。