| 王书丽,郭晓敏,黄立君,袁希,董星宇,肖斌,方海富,高宇,牛德奎,张令.不同施肥和保水措施对油茶土壤N2O排放的影响[J].农业环境科学学报,2020,39(9):2089-2097. |
| 不同施肥和保水措施对油茶土壤N2O排放的影响 |
| Effects of different fertilization and water retention measures on N2O emission from Camellia oleifera soil |
| 投稿时间：2020-03-11 |
| DOI：10.11654/jaes.2020-0259 |
| 中文关键词: 氮磷施用 生物炭 聚丙烯酰胺 氧化亚氮 油茶 |
| 英文关键词: nitrogen and phosphorus application biochar polyacrylamide nitrous oxide Camellia oleifera |
| 基金项目:江西省研究生创新专项资金项目（YC2017-S192）；国家自然科学基金项目（41967017，41501317，31760223） |
| 作者 | 单位 | E-mail | | 王书丽 | 江西农业大学林学院, 江西省森林培育重点实验室, 南昌 330045 | | | 郭晓敏 | 江西农业大学林学院, 江西省森林培育重点实验室, 南昌 330045 | | | 黄立君 | 江西农业大学林学院, 江西省森林培育重点实验室, 南昌 330045 | | | 袁希 | 江西农业大学林学院, 江西省森林培育重点实验室, 南昌 330045 | | | 董星宇 | 江西农业大学林学院, 江西省森林培育重点实验室, 南昌 330045 | | | 肖斌 | 江西农业大学林学院, 江西省森林培育重点实验室, 南昌 330045 | | | 方海富 | 江西农业大学林学院, 江西省森林培育重点实验室, 南昌 330045 | | | 高宇 | 江西农业大学林学院, 江西省森林培育重点实验室, 南昌 330045 | | | 牛德奎 | 江西农业大学林学院, 江西省森林培育重点实验室, 南昌 330045 | | | 张令 | 江西农业大学林学院, 江西省森林培育重点实验室, 南昌 330045 | lingzhang09@126.com |
|
| 摘要点击次数: 1345 |
| 全文下载次数: 1474 |
| 中文摘要: |
| 为探究不同施肥和保水措施对油茶土壤N2O排放的影响，采用静态暗箱-气相色谱法，设置对照（B0CK）、氮肥（N，0.13 g N·kg-1）、磷肥（P，0.065 g P·kg-1）、氮磷肥（NP，0.13 g N·kg-1+0.065 g P·kg-1）、低复合保水材料（生物炭和聚丙烯酰胺，B1，每盆13.65 g炭+1.35 g聚丙烯酰胺）、高复合保水材料（生物炭和聚丙烯酰胺，B2，每盆27.30 g炭+2.70 g聚丙烯酰胺）、低复合保水材料和N（NB1）、高复合保水材料和N（NB2）、低复合保水材料和P（PB1）、高复合保水材料和P（PB2）、低复合保水材料和NP（NPB1）、高复合保水材料和NP（NPB2），共12个处理，进行不同施肥和保水措施下土壤N2O排放的差异比较。结果表明，N、P添加均显著增加土壤N2O的累积排放量，NP添加与对照无差异。施加复合保水材料抑制土壤N2O的排放，随着复合保水材料施用量的增加，土壤N2O的排放显著降低，与对照相比，B1和B2处理N2O减排50%以上。N添加条件下，与对照相比，添加复合保水材料NB1、NB2的N2O累积排放显著降低。P与复合保水材料无交互作用。N、P和复合保水材料对土壤N2O累积排放量具有显著作用，在NP同施时，与对照相比，添加复合保水材料NPB1、NPB2的N2O累积排放分别降低了1.18%、30.69%。因此，高复合保水材料类型的施肥措施对减少油茶土壤N2O排放具有重要意义，从而对缓解全球气候变化具有重要影响。 |
| 英文摘要: |
| To investigate the effects of different fertilization and water conservation measures on N2O emissions from Camellia oleifera soil, tests were conducted using Camellia seedings, with a static dark box-gas chromatography method, a total of 12 treatments of different fertilizer and water conservation, including control(B0CK), nitrogen fertilizer(N), phosphate fertilizer(P), nitrogen and phosphorus fertilizer(NP), composite water-retaining material (biochar and polyacrylamide, B1), high composite materials (biochar and polyacrylamide, B2), low composite materials and nitrogen fertilizer(NB1)and high composite materials and nitrogen fertilizer(NB2), low composite materials and phosphate(PB1), high composite materials and phosphate(PB2), low composite materials and high nitrogen and phosphate(NPB1), composite materials and nitrogen phosphorus(NPB2), was set to determine the difference of soil N2O emissions. Results showed that the addition of N and P significantly increased the cumulative emissions of soil N2O, while the addition of N and P showed no difference with the control sample. Composite water-retaining materials were applied to inhibit soil N2O emissions. With the increase of application amount of composite water-retaining materials, soil N2O emissions were significantly reduced. Compared with the control, B1 and B2 reduced N2O emissions by more than 50%, respectively. When N was added, compared with control, the cumulative N2O emissions of NB1 and NB2 with composite water-retaining materials were significantly reduced, respectively. P had no interaction with the composite water-retaining material. N, P, and composite water-retaining materials had significant effects on the cumulative N2O emissions of soil. When N and P was applied together, compared with the control, the cumulative N2O emissions of composite water-retaining materials NPB1 and NPB2 were reduced by 1.18% and 30.69%, respectively. Therefore, the application of fertilizer with high composite water-retaining materials is of great significance in reducing the N2O emissions of Camellia oleifera soil, thereby having an important impact on mitigating global climate change. |
| HTML
查看全文
查看/发表评论 下载PDF阅读器 |
|
|
|
