|本期目录/Table of Contents|

[1]郭虎林 韩玉国** 郭子繁.北京地区典型果园NANI解析与消减对策*[J].应用与环境生物学报,2020,26(02):1-12.[doi:10.19675/j.cnki.1006-687x.2019.05022]
 GUO Hulin,HAN Yuguo,**,et al.Analysis and Reduction of NANI in typical orchar d in Beijing area*[J].Chinese Journal of Applied & Environmental Biology,2020,26(02):1-12.[doi:10.19675/j.cnki.1006-687x.2019.05022]
点击复制

北京地区典型果园NANI解析与消减对策*()
分享到:

《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
26卷
期数:
2020年02期
页码:
1-12
栏目:
研究论文
出版日期:
2020-03-20

文章信息/Info

Title:
Analysis and Reduction of NANI in typical orchar d in Beijing area*
作者:
郭虎林 韩玉国12** 郭子繁1
1北京林业大学水土保持学院,水土保持国家林业局重点实验室 北京 100083
2北京市水土保持工程技术研究中心 北京 100083
Author(s):
GUO Hulin1 HAN Yuguo1 2** GUO Zifan1
1 School of Soil and Water Conservation, Beijing Forestry University, Key Laboratory of State Forestry Administration on Soil and Water Conservation, Beijing 100083
2 Beijing Engineering Research Center of Soil and Water Conservation, Beijing 100083
关键词:
NANI果园北京地区人类活动环境压力
Keywords:
NANI orchard Beijing area anthropogenic environmental pressure
DOI:
10.19675/j.cnki.1006-687x.2019.05022
摘要:
人类活动引起的过量氮素输入已经成为引起区域生态环境恶化的主要原因。为探究北京地区人类活动产生的氮素对果园造成的潜在影响,基于大气沉降、肥料、食物/饲料和生物固氮四部分氮素输入之和的人类活动净氮输入模型(net anthropogenic nitrogen input,NANI),估算了聂各庄果园2018年人类活动导致的净氮输入量。结果显示,研究区域NANI值为234 kg hm-2 a-1。其中,肥料输入强度为179 kg hm-2 a-1,占NANI的62.1%;大气沉降输入强度为65 kg hm-2 a-1,占NANI的22.5%;其他依次为生物固氮(18 kg hm-2 a-1;6.1%)和食物/饲料(-27 kg hm-2 a-1;-9.3%)。研究区NANI值偏高,其为我国主要流域NANI值的1.4-3.9倍。肥料是该区域NANI的主要来源,其施用量高出全国和北京地区平均水平的13%和10%。大气氮沉降是NANI的第二大来源,其为全国平均沉降量的4.7倍。肥料和大气沉降都对区域生态环境造成了一定的压力,宜采取相应措施防止多余的氮素流向下游水体。在全国和北京地区平均施肥水平为基准的情况下,通过减少肥料用量17-22 kg hm-2 a-1可以有效降低研究区NANI值。通过减少或替换汽油驱动的汽车100万辆,可以减小大气沉降中硝态氮7.16 kg hm-2 a-1。本研究表明该区域NANI最主要的来源为肥料和大气沉降,通过一系列措施能够对区域内过量的氮素进行消减,达到净化环境的目。
Abstract:
Excessive nitrogen input caused by human activities has become the main cause of regional ecological environment deterioration. In order to explore the potential impact of nitrogen produced by human activities in Beijing on orchards, this study is based on the model of net anthropogenic nitrogen input (net anthropogenic nitrogen input, NANI), which is the combination of atmospheric deposition, fertilizer, food/feed and nitrogen fixation, estimated the net nitrogen input caused by human activities in Niegezhuang Orchard in 2018. The results show that the NANI value of the research area is 234 kg hm-2 a -1. Among them, the input intensity of fertilizer is 179 kg hm-2 a -1, accounting for 62.1% of NANI. The input intensity of atmospheric deposition is 65 kg hm-2 a -1, accounting for 22.5% of NANI. The other is nitrogen fixation (18 kg hm-2 a -1; 6.1%) and food/feed (-27 kg hm-2 a -1; -9.3%). The value of NANI in the study area is high, which is 1.4-3.9 times of the main watershed in China. Fertilizer is the main source of NANI in the region, and its application rate is 13% and 10% higher than the national and Beijing average. Atmospheric nitrogen deposition is the second largest source of NANI, which is 4.7 times the national average. Both fertilizer and atmospheric deposition have exerted certain pressure on the regional ecological environment. It is advisable to take corresponding measures to prevent excess nitrogen from flowing to the downstream water bodies. In the case of the average fertilization level in the country and Beijing, the NANI value in the study area can be effectively reduced by reducing the amount of fertilizer by 17-22 kg hm -2 a -1. By reducing or replacing one million gasoline-powered vehicles, the nitrate nitrogen in atmospheric deposition is reduced by 7.16 kg hm -2 a -1. This study shows that the most important source of NANI in this region is fertilizer and atmospheric deposition. Through a series of measures, the excess nitrogen in the region can be reduced to achieve the goal of purifying the environment.

备注/Memo

备注/Memo:
收稿日期 Received: 2019-05-13 接受日期 Accepted: 2019-07-29
*国家水体污染控制与治理科技重大专项(2017ZX07102-001)资助
**通讯作者 Corresponding author (E-mail: yghan@bjfu.edu.cn)
点击摘要页题目后的“PDF”可下载阅读全文;本文为已录用的作者修定稿,尚未经编辑全面修改。
引用本文请注明出处本刊;发表刊期和页码将以正式出版时的安排为准,但DOI确定不变。
更新日期/Last Update: 2019-09-04