紫色土丘陵区典型生态-水文单元径流与氮磷输移特征
Characteristics of nitrogen and phosphorus transportation through runoff in a typical ecological-hydrological unit of hilly area of purple soil
查看参考文献26篇
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文摘
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通过对紫色土丘陵区典型农业-集镇-林地复合型小流域3次降雨-径流全过程的连续监测,测定了径流过程中泥沙含量和不同形态氮磷浓度,以期认识典型农村生态-水文单元降雨径流过程中氮磷迁移规律。结果表明:降雨-径流过程中悬浮泥沙的流失主要集中在径流前期,其峰值出现在雨强最大时;集镇径流污染的影响主要表现在径流前期,是径流前期铵态氮偏高的主因;降雨-径流过程中,颗粒态氮与可溶态氮比(PN/DN)、颗粒态磷与可溶态磷比(PP/DP)的峰值均出现在雨强较大时:其中PN/DN多小于1,而PP/DP范围为1.1~30.2,说明氮素流失主要通过可溶态的方式,而磷的迁移以颗粒态磷为主。因此在紫色丘陵区建议利用湿地植物与沉砂池等综合措施控制土壤侵蚀和非点源污染以保护当地生态环境安全。 |
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其他语种文摘
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This study was carried out at an agriculture-town-forestry headwater watershed in Hilly area of purple soil. In order to understand the hydrological pathways of nitrogen and phosphorus loss in this Typical Ecology-Hydrology Unit, water flow, sediment, N and P were monitored continuously in three storms. Results show that suspended sediment (SS) loss mainly occurred in the early storm flow and SS concentration peaks was synchronous with rainfall intensity. The impact of the N and P pollution from town mainly contributed to the early runoff which was the reason for high ammonium-nitrogen (AN). Particulate nitrogen/ dissolved nitrogen ratio (PN/DN) of most samples were less than 1 and particulate phosphorus/dissolved phosphorus ratio (PP/DP) ranged from 1.1 to 30.2 indicating that nitrogen loss was mainly in dissolved form and the phosphorus loss was mainly though sediment. Both peaks of the two ratios occurred when the rain intensity was high. Construction of wetland in ditches combined with grit chamber could be effective on N and P loss control in this region. |
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来源
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水利学报
,2013,44(6):748-755 【核心库】
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关键词
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紫色土丘陵区
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土壤侵蚀
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氮磷流失
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降雨-径流
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地址
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中国科学院水利部成都山地灾害与环境研究所, 四川, 成都, 610041
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0559-9350 |
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学科
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环境质量评价与环境监测 |
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基金
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国家自然科学基金项目
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国家973计划
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文献收藏号
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CSCD:4876391
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参考文献 共
26
共2页
|
|
1.
杨金玲. 皖南低山丘陵地区流域氮磷径流输出特征.
农村生态环境,2005,21(3):34-37
|
被引
13
次
|
|
|
|
|
2.
陈能汪. 九龙江流域降雨径流污染特征研究.
厦门大学学报(自然科学版),2004,43(4):537-541
|
被引
10
次
|
|
|
|
|
3.
张荣保. 太湖地区典型小流域非点源污染物流失规律 --以宜兴梅林小流域为例.
长江流域资源与环境,2005,14(1):94-98
|
被引
32
次
|
|
|
|
|
4.
许其功. 三峡库区典型小流域氮磷流失特征.
环境科学学报,2007,27(2):326-331
|
被引
91
次
|
|
|
|
|
5.
张维理. 中国农业面源污染形势估计及控制对策Ⅰ.21世纪初期中国农业面源污染的形势估计.
中国农业科学,2004,37(7):1008-1017
|
被引
537
次
|
|
|
|
|
6.
朱波. 紫色丘陵区典型小流域氮素迁移及其环境效应.
山地学报,2006,24(5):601-606
|
被引
37
次
|
|
|
|
|
7.
汪涛. 川中丘陵区典型小流域地下水硝酸盐污染分析.
生态与农村环境学报,2006,22(3):84-87
|
被引
19
次
|
|
|
|
|
8.
Zhu Bo. Phosphorus fractions and release potential of ditch sediments from different land uses in a small catchment of the upper Yangtze River.
Journal of Soils and Sediments,2012,12(2):278-290
|
被引
14
次
|
|
|
|
|
9.
况福虹. 川中丘陵区小流域非点源氮素迁移的季节特征——以中国科学院盐亭紫色土农业生态试验站小流域为例.
水土保持研究,2006,13(5):93-98
|
被引
3
次
|
|
|
|
|
10.
朱波. 川中丘陵区典型小流域农田生态系统氮素收支探析.
中国生态农业学报,2006,14(1):108-111
|
被引
21
次
|
|
|
|
|
11.
Zhu Bo. Measurements of nitrate leaching from a hillslope cropland in the central Sichuan basin,China.
Soil Science Society of America Journal,2009,73(4):1419-1426
|
被引
68
次
|
|
|
|
|
12.
辛伟. 紫色土丘陵区典型坡地产流及产沙模拟试验研究.
水土保持通报,2008,28(2):31-35
|
被引
14
次
|
|
|
|
|
13.
韩建刚. 紫色土区小流域泥沙输出过程对雨型和空间尺度的响应.
水利学报,2006,37(1):58-62
|
被引
7
次
|
|
|
|
|
14.
李夜光. 富营养化水体中N、P浓度对浮游植物生长繁殖速率和生物量的影响.
生态学报,2006,26(2):317-325
|
被引
41
次
|
|
|
|
|
15.
Zhu Qing. Nitrogen loss from a mixed land use watershed as influenced by hydrology and seasons.
Journal of Hydrology,2011,405(3/4):307-315
|
被引
10
次
|
|
|
|
|
16.
蒋锐. 紫色丘陵区典型小流域暴雨径流氮磷迁移过程与通量.
水利学报,2009,40(6):659-666
|
被引
39
次
|
|
|
|
|
17.
Yang Jinling. Dynamic changes of nitrogen and phosphorus losses in ephemeral runoff processes by typical storm events in Sichuan Basin,Southwest China.
Soil & Tillage Research,2009,105(2):292-299
|
被引
19
次
|
|
|
|
|
18.
Hornberger G M. Hydrological controls on dissolved organic carbon during snowmelt in the Snake River near Montezuma,Colorado.
Biogeochemistry,1994,25(3):147-165
|
被引
4
次
|
|
|
|
|
19.
罗专溪. 紫色土丘陵区农村集镇降雨径流污染特征.
环境科学学报,2008,28(9):1823-1831
|
被引
14
次
|
|
|
|
|
20.
张荣社. 滇池流域农业区的暴雨径流特征研究.
中国给水排水,2003,19(2):13-16
|
被引
12
次
|
|
|
|
|
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