Soil Phosphorus Bioavailability and Recycling Increased with Stand Age in Chinese Fir Plantations
文献类型：期刊论文
| 作者 | Wu, Huili2,3; Xiang, Wenhua2,3; Chen, Liang2,3; Ouyang, Shuai2,3; Xiao, Wenfa4; Li, Shenggong5 ; Forrester, David I.1; Lei, Pifeng2,3; Zeng, Yelin2,3; Deng, Xiangwen2,3
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| 刊名 | ECOSYSTEMS
 |
| 出版日期 | 2020-08-01 |
| 卷号 | 23期号:5页码:973-988 |
| 关键词 | Chinese fir plantation forest floor phosphorus uptake rhizosphere processes soil phosphorus stock nutrient mobilization phosphorus recycling |
| ISSN号 | 1432-9840 |
| DOI | 10.1007/s10021-019-00450-1 |
| 通讯作者 | Xiang, Wenhua(xiangwh2005@163.com) |
| 英文摘要 | Phosphorus (P) is a limiting nutrient for plant growth in most forest ecosystems. In response to P deficiency, plants alter root exudates (organic acids, phosphatases, and protons) to increase P bioavailability in soils. However, little is known about how bioavailable P pools (soluble-P, exchangeable-P, hydrolysable-P, and ligand-P extracted by CaCl2, citric acid, enzyme mixture, and HCl solution, respectively) change with stand age, especially for plantation forests. We selected a chronosequence of second-generation Chinese fir [Cunninghamia lanceolata(Lamb.) Hook., Taxodiaceae] plantations with increasing age including 3, 8-11, 16, 20, 25, 29, and 32 years. We measured total P and four bioavailable P pools in organic (O) and mineral horizons, and rhizosphere soil, as well as root exudates in the rhizosphere, litter biomass on the forest floor, and annual P uptake. Soluble-P, exchangeable-P, and ligand-P in the O horizon increased with stand age due to litter accumulation. Exchangeable-P and ligand-P in mineral soil decreased with stand age because of the increasing annual P uptake that depleted inorganic P. Exchangeable-P and ligand-P in the rhizosphere increased with stand age because the decrease in pH and citric acid concentration led to phosphate being more strongly bound to Fe and Al oxyhydroxides. Consequently, the trees' ability for P mobilization decreased with stand age, but the P recycling within the tree increased. Continuous mineralization of hydrolysable-P by acid phosphatase replenished inorganic P pools, especially in solution. The progressive incorporation of P in the biological cycle with increasing tree age indicates that extending rotation periods might be an appropriate measure to increase P supply. |
| WOS关键词 | PLANT-INDUCED CHANGES ; BRASSICA-NAPUS VAR ; ORGANIC PHOSPHORUS ; EMERALD SEEDLINGS ; LAND-USE ; RHIZOSPHERE ; ROOT ; DYNAMICS ; AVAILABILITY ; FRACTIONS |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000556248000004 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/158148]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xiang, Wenhua |
| 作者单位 | 1.Swiss Fed Inst Forest Snow & Landscape Res WSL, Zurcherstr 111, CH-8903 Birmensdorf, Switzerland 2.Cent South Univ Forestry & Technol, Fac Life Sci & Technol, Changsha 410004, Hunan, Peoples R China 3.Huitong Natl Stn Sci Observat & Res Chinese Fir P, Huitong 438107, Peoples R China 4.Chinese Acad Forestry, Key Lab Forest Ecol & Environm, State Forestry Adm, Res Inst Forest Ecol Environm & Protect, Beijing 100091, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 6.Univ Goettingen, Dept Soil Sci Temperate Ecosyst & Agr Soil Sci, D-37077 Gottingen, Germany |
| 推荐引用方式 GB/T 7714 | Wu, Huili,Xiang, Wenhua,Chen, Liang,et al. Soil Phosphorus Bioavailability and Recycling Increased with Stand Age in Chinese Fir Plantations[J]. ECOSYSTEMS,2020,23(5):973-988. |
| APA | Wu, Huili.,Xiang, Wenhua.,Chen, Liang.,Ouyang, Shuai.,Xiao, Wenfa.,...&Kuzyakov, Yakov.(2020).Soil Phosphorus Bioavailability and Recycling Increased with Stand Age in Chinese Fir Plantations.ECOSYSTEMS,23(5),973-988. |
| MLA | Wu, Huili,et al."Soil Phosphorus Bioavailability and Recycling Increased with Stand Age in Chinese Fir Plantations".ECOSYSTEMS 23.5(2020):973-988. |
入库方式： OAI收割
来源：地理科学与资源研究所
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