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| 滩涂养殖在鱼塘混养模式下氮磷收支的研究 | |
| 引用本文： | 祝云龙,姜加虎,李辉信,严少华,韩士群.滩涂养殖在鱼塘混养模式下氮磷收支的研究[J].土壤通报,2007,38(3):477-481. |
| 作者姓名： | 祝云龙 姜加虎 李辉信 严少华 韩士群 |
| 作者单位： | 1. 中国科学院,南京地理与湖泊研究所,江苏,南京,210008 2. 南京农业大学,资源与环境科学学院,江苏,南京,210095 3. 江苏省农科院,资源与环境研究中心,江苏,南京,210014 |
| 基金项目： | 国家自然科学基金(面上基金)项目 |
| 摘 要： | 用15个上口面积为40m2,底部面积为20m2,深为1m的池塘,在相同的放养水平和投饲水平下,进行氮磷试验研究。本试验共设置五个处理:N/P=1,N/P=5,N/P=10,N/P=20,CK,每个处理设置3个重复。试验结果表明:试验中投放的饵料、肥料分别占氮总输入的30%~46.12%和37.81%~39.52%;占磷总输入的15.44%~74.74%和16.31%~79.12%。在支出项目中,鱼类的收获支出的氮磷占氮磷总输入的52.31%~75.95%和8.98%~40.39%;沉积在底泥中的氮磷分别占氮磷总输入的19.95%~36.3%和35.82%~86.52%;底泥中氮磷的渗漏占其总输入的1.49%~12.66%和1.09%~11.28%,其中氮的损失率对照最低为1.49%,N/P=20的损失最高为12.66%;磷的损失率N/P=10的处理最低为1.09%,对照为最高11.28%。 |
| 关 键 词： | 氮 磷 收支 滩涂池塘 |
| 文章编号： | 0543-3945(2007)03-0477-05 |
| 修稿时间： | 2006年6月20日 |
Nitrogen and Phosphorus Budgets of Muti - fish Culture Pond in a Coastal Area |
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| ZHU Yun-long,JIANG Jia-hu,LI Hui-xin,YAN Shao-hua,HAN Shi-qun.Nitrogen and Phosphorus Budgets of Muti - fish Culture Pond in a Coastal Area[J].Chinese Journal of Soil Science,2007,38(3):477-481. | |
| Authors: | ZHU Yun-long JIANG Jia-hu LI Hui-xin YAN Shao-hua HAN Shi-qun |
| Abstract: | At the same fish density and fodder,nitrogen and Phosphorus budgets of 15 muti-fish culture ponds were studied with Hypophthalmichthys molitrix,Aristichthys nobilis,Carassius auratus gibelio,and five treatments,N/P=1,N/P=5,N/P=10,N/P=20,CK,respectively.The main results were as follows: The nitrogen content of all input in the fodder and fertilizer was 30-46.12% and 37.81-39.52%;but Phosphorus contents in in the fodder were between 15.44% and 74.74%,and between 16.31% and 79.12% in the fertilizer.The fish yields comprise 52.31-75.95% of total N inputs and 8.98-40.39% of total P inputs,while the nitrogen and phosphorus accumulation in the muds comprise 19.95-36.3% and 35.82-86.52% of the total.Hence,the loss of nitrogen and phosphorus in the treatments through seepage comprise 1.49-12.66% and 1.09-11.28% of the total inputs.As to the loss of nitrogen,the control was the lowest,but the treatment of N/P=20 was the highest.As to the loss of phosphorus the treatment of N/P=10 was the lowest,while the control was the highest. |
| Keywords: | Nitrogen Phosphorus Budgets Coastal culture ponds |
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