| 添加无定形铝氧化物对雷竹林土壤有机质矿化的影响 |
| |
| 引用本文： | 刘国群,庄舜尧,桂仁意,李国栋,方 伟.添加无定形铝氧化物对雷竹林土壤有机质矿化的影响[J].土壤,2009,41(4):635-640. |
| |
| 作者姓名： | 刘国群 庄舜尧 桂仁意 李国栋 方 伟 |
| |
| 作者单位： | 1. 土壤与农业可持续发展国家重点实验室(中国科学院南京土壤研究所),南京,210008
2. 浙江林学院浙江省现代森林培育技术重点实验室,浙江临安,311300 |
| |
| 基金项目： | 国家自然基金项目，浙江省森林培育重中之重学科开放基金项目 |
| |
| 摘 要： | 土壤中无定形铝氧化物对有机质的存在有很大的影响,由于雷竹特殊的经营方式导致土壤中有机质快速积累,为了解无定形铝氧化物对土壤中快速积累的有机质分解产生的影响,本文通过往不同种植年限的雷竹林土壤中增加不同量的无定形铝氧化物(0、2、10、20、40 g/kg)以及室内密闭培养法测定CO2的释放量来反映有机质的分解状况,以便了解无定形铝氧化物对快速增加的雷竹林土壤有机质分解的影响,了解集约经营下的雷竹林土壤有机质的变化趋势及稳定性.结果表明,无定形铝氧化物的加入可显著抑制土壤有机质的分解,当无定形铝氧化物的加入量为40 g/kg时,对0年(水稻)、1年、5年、15年雷竹林土壤有机质分解的抑制率分别为56.97%、60.75%、58.87%、44.25%;0年(水稻)土壤加入无定形铝氧化物0、2、10、20、40 g/kg,对有机质分解的抑制效率分别为7.49%、38.04%、50.79%、56.98%.无定形铝氧化物对有机质分解的抑制效率随其加入量的增加而提高,但随土壤有机质含量的增加而下降.
|
| 关 键 词： | 雷竹土壤 无定形铝氧化物 有机质分解 |
Effects of amorphous aluminum hydroxide addition on soil organic matter decomposition in Phyllostachy spraecox Preveynalis with intensive management |
| |
| LIU Guo-qun,ZHUANG Shun-yao,GUI Ren-yi,LI Guo-dong,FANG Wei.Effects of amorphous aluminum hydroxide addition on soil organic matter decomposition in Phyllostachy spraecox Preveynalis with intensive management[J].Soils,2009,41(4):635-640. |
| |
| Authors: | LIU Guo-qun ZHUANG Shun-yao GUI Ren-yi LI Guo-dong FANG Wei |
| |
| Abstract: | Soil organic matter (SOM) accumulates rapidly in the Phyllostachy spraecox. Preveynalis soil due to its special intensive management. Enriched soil Al may exert a great effect on SOM decomposition. In this paper, an in-vitro incubation experiment was conducted to investigate the influence of amorphous aluminum hydroxide (AAH) additions (0, 2, 10, 20 and 40 g/kg respectively) on SOM of Phyllostachy spraecox. Preveynalis. Results showed that the addition of AAH significantly inhibited SOM decomposition. The inhibition rates were 56.97%, 60.75%, 58.87% and 44.25% respectively on the soils with 0, 1, 5, 15 planting years when 40 g/kg Al addition, while the inhibition rates on the control soil (paddy soil) were 7.49%, 38.04%, 50.79% and 56.98% respectively when Al addition rate were 0, 2, 10, 20, and 40 g/kg. Overall, the inhibition rate on SOM decomposition increased with increasing Al addition amount but decreased with increasing SOM content. |
| |
| Keywords: | Bamboo soil Amorphous aluminum hydroxide Organic matter decomposition |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《土壤》浏览原始摘要信息 |
| 点击此处可从《土壤》下载免费的PDF全文 |
|
