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| 崇明东滩地区砂质旱田氮磷径流流失特征研究 | |
| 引用本文： | 钱晓雍,沈根祥,黄丽华,王寿兵.崇明东滩地区砂质旱田氮磷径流流失特征研究[J].水土保持学报,2010,24(2). |
| 作者姓名： | 钱晓雍 沈根祥 黄丽华 王寿兵 |
| 作者单位： | 1. 复旦大学,环境科学与工程系,上海,200433;上海市环境科学研究院,上海,200233 2. 上海市环境科学研究院,上海,200233 3. 复旦大学,环境科学与工程系,上海,200433 |
| 基金项目： | 中国-意大利环境保护合作项目 |
| 摘 要： | 通过对崇明东滩地区砂质旱田果园和菜地的全年降雨径流监测,研究了在实际生产过程中由于自然降雨所产生的地表径流及其氮磷径流流失负荷,并重点分析了典型雨量条件下的氮磷径流流失浓度及其形态。结果表明,崇明东滩地区降雨主要集中在5-9月,占总降雨量的53.64%,果园径流量与降雨量的相关系数达到0.911(P0.01),菜地由于受到植被覆盖变化的影响,径流量与降雨量相关系数仅为0.673(P0.05);典型降雨条件下氮磷径流流失的主要形态均为径流泥沙所携带的颗粒态氮磷,分别占TN和TP径流流失浓度的29.51%～64.36%和84.61%～99.77%;果园和菜地TN径流流失负荷分别达到4.33,4.28kg/(hm2.a),TP径流流失负荷分别达到8.53,5.24kg/(hm2.a),氮磷径流流失主要集中在降雨量较多的第三季度。 |
| 关 键 词： | 崇明东滩 砂质旱田 地表径流 氮磷流失 |
Characteristics of Nitrogen and Phosphorus Losses with Rainfall-Runoff from Sandy Dry Field in Chongming Dongtan |
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| QIAN Xiao-yong,SHEN Gen-xiang,HUANG Li-hua,WANG Shou-bing.Characteristics of Nitrogen and Phosphorus Losses with Rainfall-Runoff from Sandy Dry Field in Chongming Dongtan[J].Journal of Soil and Water Conservation,2010,24(2). | |
| Authors: | QIAN Xiao-yong SHEN Gen-xiang HUANG Li-hua WANG Shou-bing |
| Institution: | QIAN Xiao-yong1,2,SHEN Gen-xiang2,HUANG Li-hua2,WANG Shou-bing1 (1.Department of Environmental Sciences , Engineering,Fudan University,Shanghai 200433,2.Shanghai Academy of Environmental Sciences,Shanghai 200233) |
| Abstract: | Nitrogen and phosphorous losses derived from rainfall runoff was studied through a whole year monitoring in orchard and vegetable filed with sandy soil in Chongming Dongtan,and the concentrations and characteristics of nitrogen and phosphorous losses under typical rainfalls were focally analyzed.The results indicated that,the rainfalls mainly occurred in the period from May to September,whose rainfall amount accounted for 53.64% of the total rainfall amount in the year,and the correlation coefficient of rai... |
| Keywords: | Chongming Dongtan sandy field surface runoff nitrogen and phosphorous losses |
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