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紫色土旱坡地氮流失通量对减肥配施秸秆的响应

文献类型：期刊论文

作者熊子怡2; 王子芳2; 龙翼1; 严冬春1; 徐国鑫2; 高明2
刊名环境学报
出版日期2020
卷号41期号:4页码:1930-1940
ISSN号0250-3301
关键词Chinese Academy of Sciences Different treatments Experimental stations Interflow Non point source pollution Overland flow Sloping fields Three gorges reservoir area
DOI10.13227/j.hjkx.201910002
其他题名Response of Nitrogen Loss Flux in Purple Soil Sloping Field to Reduced Fertilizer and Combining Straw
产权排序2
文献子类Article
英文摘要The purple soil sloping field is considered as the main source of sediment and non-point source pollution in the Three Gorges Reservoir area. To prevent and control the non-point source pollution, it is indispensable to explore the characteristics of nitrogen loss in the overland flow and interflow of purple soil sloping field in Three Gorges Reservoir area. The purple soil sloping runoff plots, located in the Shibaozhai Experimental Station of Chengdu Institute of Chinese Academy of Sciences in Zhongxian County, Chongqing, were studied. The experiment included no fertilization treatment (CK), traditional fertilization treatment (T1), amended fertilization treatment (T2), and reduced fertilizer with straw treatment (T3). According to the data of volume of the interflow and runoff and the leach concentration and flux of nitrogen forms under rapeseed-maize rotation system, the response of nitrogen leaching flux to reduce fertilizer with straw application can be definite in purple soil sloping plots. The results show that the ratio of interflow to total runoff is 60.14%-88.56%, and the flux of nitrogen leaching in the interflow accounts for 72.88%-92.35% of total nitrogen loss flux. Ammonium was mainly leached by the overland flow. In addition, nitrate was mainly leached by the interflow and was the main form of nitrogen leaching. The fluxes of ammonium and nitrate under different treatments followed the order T1>T2>T3>CK. The total nitrogen flux of T3 was 20.07 kg•(hm2•a)-1, which was 43.59% and 39.55% lower than that of T1 and T2, respectively. The reduced fertilizer with straw application significantly decreased the leaching flux of ammonium, nitrate, and total nitrogen, and weakened the effect on runoff nitrogen leaching in the purple soil sloping plots. © 2020, Science Press. All right reserved.
语种中文
CSCD记录号CSCD:6710752
源URL[http://ir.imde.ac.cn/handle/131551/34151]  
专题成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室
通讯作者高明
作者单位1.中国科学院水利部成都山地灾害与环境研究所
2.西南大学资源环境学院;
推荐引用方式
GB/T 7714		 熊子怡,王子芳,龙翼,等. 紫色土旱坡地氮流失通量对减肥配施秸秆的响应[J]. 环境学报,2020,41(4):1930-1940.
APA 熊子怡,王子芳,龙翼,严冬春,徐国鑫,&高明.(2020).紫色土旱坡地氮流失通量对减肥配施秸秆的响应.环境学报,41(4),1930-1940.
MLA 熊子怡,et al."紫色土旱坡地氮流失通量对减肥配施秸秆的响应".环境学报 41.4(2020):1930-1940.

入库方式： OAI收割

来源：成都山地灾害与环境研究所

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