[1]田帅,单旭东,程启鹏,等.巢湖流域典型稻麦轮作区大气氮磷沉降及对巢湖影响的分析[J].江苏农业学报,2022,38(04):958-966.[doi:doi:10.3969/j.issn.1000-4440.2022.04.012]
　TIAN Shuai,SHAN Xu-dong,CHENG Qi-peng,et al.Analysis of atmospheric nitrogen and phosphorus deposition and its impact on Chao Lake in typical rice-wheat rotation area of Chao Lake basin[J].,2022,38(04):958-966.[doi:doi:10.3969/j.issn.1000-4440.2022.04.012]
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巢湖流域典型稻麦轮作区大气氮磷沉降及对巢湖影响的分析()
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江苏农业学报[ISSN:1006-6977/CN:61-1281/TN]

卷:
38
期数:
2022年04期
页码:
958-966
栏目:
耕作栽培·资源环境
出版日期:
2022-08-31

文章信息/Info

Title:
Analysis of atmospheric nitrogen and phosphorus deposition and its impact on Chao Lake in typical rice-wheat rotation area of Chao Lake basin
作者:
田帅1; 单旭东1; 程启鹏1; 徐刚1; 郜红建1; 华胜2; 高时凤3
（1.安徽农业大学资源与环境学院/农田生态保育与污染防控安徽省重点实验室，安徽合肥230036；2.安徽喜洋洋农业科技有限公司，安徽庐江230088；3.庐江县白山镇农业技术推广服务站，安徽庐江231531）
Author(s):
TIAN Shuai1; SHAN Xu-dong1; CHENG Qi-peng1; XU Gang1; GAO Hong-jian1; HUA Sheng2; GAO Shi-feng3
(1.School of Resources and Environment, Anhui Agricultural University/Anhui Provincial Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, Hefei 230036, China;2.Anhui Xiyangyang Agricultural Science and Technology Co., Ltd., Lujiang 230088, China;3.Agricultural Technology Extension Service Station of Baishan Town of Lujiang County, Lujiang 231531, China)
关键词:
巢湖流域; 稻麦轮作; 氮磷沉降; 农田生态系统; 巢湖水体
Keywords:
Chao Lake basin; rice-wheat rotation; nitrogen and phosphorus deposition; farmland ecosystem; Chao Lake water body
分类号:
X529
DOI:
doi:10.3969/j.issn.1000-4440.2022.04.012
文献标志码:
A
摘要:
为研究巢湖流域典型稻麦轮作区大气氮磷沉降特征及其生态环境效应，选择巢湖流域典型稻麦轮作区布设大气氮磷沉降监测点，收集大气沉降样品进行氮磷质量浓度、沉降通量及输入特征分析。结果表明，监测期内大气总氮（TN）、总磷（TP）年沉降通量分别为98.22 kg/hm2、3.27 kg/hm2，其中TN沉降以可溶性有机氮（DON）为主，占TN沉降总量的49.56%，而可溶性无机氮（DIN）则以NH+4-N（14.48 kg/hm2）为主，NO-3-N含量相对较低（5.85 kg/hm2）。TP沉降以可溶性无机磷（DIP）（2.36 kg/hm2）为主，可溶性有机磷（DOP）含量较低。水稻季（6-10月）、小麦季（11月至次年5月）大气TN沉降通量分别为45.84 kg/hm2、52.38 kg/hm2，分别相当于当季氮肥施用量的20%、23%。据此估算，巢湖湖面大气TN和TP年沉降量分别为7 661.16 t和255.06 t，分别占巢湖主要河流入湖负荷的48.41%和32.57%。综上所述，巢湖流域典型稻麦轮作区大气氮磷沉降是农田生态系统和巢湖水体氮磷输入的重要来源。
Abstract:
To study the characteristics of atmospheric nitrogen and phosphorus deposition and its effects on ecological environment in typical rice-wheat rotation area of Chao Lake basin, monitoring and testing sites for atmosphere nitrogen and phosphorus deposition were laid in the area to collect atmospheric deposition samples to analyze the mass concentration, deposition fluxes and input characteristics of nitrogen and phosphorus. The results showed that, annual deposition fluxes of total nitrogen (TN) and total phosphorus (TP) in the monitoring period were 98.22 kg/hm2 and 3.27 kg/hm2, respectively. Atmospheric TN deposition was dominated by dissolved organic nitrogen (DON), which accounted for 49.56% of the total TN deposition, while dissolved inorganic nitrogen (DIN) was dominated by NH+4-N (14.48 kg/hm2), and content of NO-3-N was relatively low (5.85 kg/hm2). Atmospheric TP deposition was dominated by dissolved inorganic phosphorus (DIP) (2.36 kg/hm2), and content of dissolved organic phosphorus (DOP) was low. The TN deposition fluxes in rice season (from June to October) and wheat season (from November to May in the next year) were 45.84 kg/hm2 and 52.38 kg/hm2, respectively, which accounted for 20% and 23% respectively of the total nitrogen fertilizer application in the current season. It was estimated that, the annual atmospheric TN deposition and TP deposition on the Chao Lake surface were 7 661.16 t and 255.06 t, respectively, which accounted for 48.41% and 32.57% of TN and TP inputs from main rivers entry to the lake. It can be seen that, nitrogen and phosphorus deposition in typical rice-wheat rotation area of Chao Lake basin is the important source of nitrogen and phosphorus input to the farmland ecosystem and the water body of Chao Lake.

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备注/Memo

备注/Memo:
收稿日期：2021-11-12基金项目：国家自然科学基金项目（41877099）；安徽省科技重大专项（18030701188）作者简介：田帅(1993-)，男，安徽蚌埠人，硕士研究生，主要从事养分资源综合管理研究。(E-mail) 1395010608@qq.com通讯作者：郜红建，(E-mail) hjgao@ahau.edu.cn
更新日期/Last Update: 2022-09-06