地理科学进展 ›› 2012, Vol. 31 ›› Issue (3): 337-343.doi: 10.11820/dlkxjz.2012.03.009

• 生态环境 • 上一篇    下一篇

基于GIS和RS的区域氧气生产量模拟——以哈尔滨市为例

张丽娟1, 马俊1, 延晓冬2, 刘栋1, 张利1   

  1. 1. 黑龙江普通高等学校地理环境遥感监测重点实验室,哈尔滨师范大学地理科学学院,哈尔滨 150025;
    2. 中国科学院大气物理研究所东亚区域气候环境重点实验室,北京 100029
  • 收稿日期:2011-01-01 修回日期:2011-04-01 出版日期:2012-03-25 发布日期:2012-03-25
  • 通讯作者: 延晓冬(1964-),男,陕西西安人,博士,教授,主要从事区域生态系统动力学研究。E-mail: yxd@tea.ac.cn
  • 基金资助:
    国家重点基础研究发展规划973 项目(2010CB950903);黑龙江省自然基金项目(F201041)。

Study on the Estimation of Regional Oxygen Production: A Case Study in Harbin

ZHANG Lijuan1, MAJun1, YAN Xiaodong2, LIU Dong1, ZHANG Li1   

  1. 1. Key Laboratory of Remote Sensing Monitoring of Geographic Environment, College of Geographical Science, Harbin Normal University, Harbin 150025, China;
    2. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 10029, China
  • Received:2011-01-01 Revised:2011-04-01 Online:2012-03-25 Published:2012-03-25

摘要: 随着对气候变化研究的深入,大气中氧气含量变化也应引起关注。本研究利用绿色植物光合作用产生有机碳和氧气的原理,通过模拟植物各级生产力,估算出区域氧气生产量。利用MODIS的GPP 产品,通过投影转换、影像裁切等处理,与GIS融合,采用C-FIX 模型估算区域NPP、NEP,实现区域氧气生产量的总量估算和空间分布。以哈尔滨市为例估算了2008 年区域氧气生产量,主要结论如下:①2008 年哈尔滨市生产净氧气量394423.95 t,植物自养呼吸消耗占初始氧气生产量的30.787%,异养呼吸消耗占0.001%,初始氧气生产量越多,植物自养呼吸消耗和异养呼吸消耗也多;②哈尔滨市处于高寒地带,2-12 月氧气生产量基本趋近于0,夏季最高,秋季略高于春季;③哈尔滨市各月及全年以阿城区氧气产量最多,呼兰区、松北区次之,主城区即南岗区、道里区、道外区、香坊区及平房区最低。本研究采用RS 、GIS 等技术,利用植物光合作用原理,实现了区域氧气生产日、月、年总量估算和空间分布变化,为区域氧气生产量的估算提出了新的思路,为研究大气中氧气含量的变化和评价人类生活环境质量提供了依据。

关键词: GIS和RS, 估算方法, 哈尔滨, 区域, 氧气生产量

Abstract: With the recent advancement in climate change research, it is imperative to examine the dynamic of oxygen concentration in the atmosphere. This research, therefore, attempted to estimate the regional oxygen production by simulating various levels of plant productivities in Harbin, Heilongjiang Province, China, using the photosynthesis principle. In particular, the total amount and spatial distribution of oxygen production within Harbin were estimated using the net primary productivity (NPP) and net ecosystem productivity (NEP). The NPP and NEP, in turn, were estimated employing the C-FIX model with the help of MODIS Net Primary Production (NPP) product. Several conclusions can be drawn as follows. Firstly, in 2008, the total net oxygen production in Harbin was 394423.95 tons. For oxygen consumption, autotrophic respiration accounted for 30.787% of the initial oxygen production, and heterotrophic respiration consumption was negligible (0.001%).We also found that the more initial oxygen production was, the more consumption through plant respiration. Secondly, oxygen production in Harbin has distinct seasonal variations. The production is near zero in winter (from December to February), medium in autumn and spring (slightly higher in autumn), and highest in summer. Finally, oxygen production also has apparent spatial patterns. Within Harbin City, Acheng District has the highest monthly and annual oxygen production, followed by Hulan and Songbei districts, while the old districts, including Nangang, Daoli, Daowai, Xiangfang and Pingfang, have the lowest level. In summary, this paper estimated the daily, monthly, and annual net oxygen production and examined their spatial distribution dynamics by applying the photosynthesis principle with the help of remote sensing (RS) and geographic information system (GIS) technologies. This research proposed a new idea for regional oxygen production estimation, thus providing a basis for studying the dynamics of regional oxygen concentration, and evaluating regional environmental quality for supporting human life.

Key words: evaluating method, GIS and RS, Harbin City, oxygen production estimation, regional analysis