以“胡焕庸线”为界的中国东西部净初级生产力变化分析  

Analysis on the Change of Net Primary Productivity in the East and West of China Bounded by“The Hu Huanyong Line”

作　　者：周雷雷 郑诗军 尹捷 张雅琼 黄文江 王心源 王岩 张赫林 陈俊杰[1] 彭代亮 Zhou Leilei;Zheng Shijun;Yin Jie;Zhang Yaqiong;Huang Wenjiang;Wang Xinyuan;Wang Yan;Zhang Helin;Chen Junjie;Peng Dailiang(School of Surveying and Land Information Engineering,Henan Polytechnic University,Jiaozuo 454003,China;Key Laboratory of Digital Earth Science,Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing 100094,China;Center for Satellite Application on Ecology and Environment,Ministry of Ecology and Environment,Beijing 100094,China;Beijing Engineering Research Center for Global Land Remote Sensing Products,Institute of Remote Sensing Science and Engineering,Faculty of Geographical Science,Beijing Normal University,Beijing 100875,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]河南理工大学测绘与国土信息工程学院,河南焦作454003 [2]中国科学院空天信息创新研究院数字地球重点实验室,北京100094 [3]生态环境部卫星环境应用中心,北京100094 [4]北京市陆表遥感数据产品工程技术研究中心,北京师范大学地理科学学部,北京100875 [5]中国科学院大学,北京100049

出　　处：《遥感技术与应用》2021年第4期916-925,共10页Remote Sensing Technology and Application

基　　金：国家自然科学基金项目(42071329);中国科学院A类战略性先导科技专项“地球大数据科学工程”(XDA19090112、XDA19080304)。

摘　　要：推动区域均衡协调与可持续发展是我国的重大战略之一,植被净初级生产力(NPP)对生态环境是否可持续发展起着重要作用。以“胡焕庸线”为界把我国分为东、西部,从像元尺度和县级行政单元研究分析我国NPP、人口以及人均NPP时空变化,尤其是东、西部的区域差异。结果表明:我国人口增长较快,从1982年的10.05亿增长到2017年的13.95亿,以“胡焕庸线”为界的西部占比由5.91%增长到6.42%;我国NPP整体呈现增长的趋势,总量由1982年的2.69 Pg C增长到2015年的3.24 Pg C,增长率为16.60 Tg C/a,其中东部增长率12.30 Tg C/a是西部(4.30 Tg C/a)的近3倍;西部人均NPP远大于东部与全国,1982、2000、2010、2017年西部与全国人均NPP持续处于下降的状态,但下降速率略有放缓,东部人均NPP则在2017年首次出现增长。据此可知我国整体生态环境处于恢复的状态,但不同区域之间差异较大,因此在相关政策制定方面应该充分考虑区域差异性,以实现我国生态环境的区域协调发展。Promoting regional balanced,coordinated and sustainable development is one of the most important strategies in China.Net Primary Productivity(NPP)plays a significant role in indicating the sustainable devel⁃opment of Chinese ecological environment.This paper divides China into East and West based on the"Hu Huan⁃yong Line".Then we studies and analyzes the spatio-temporal changes of NPP,population,and per capita NPP,especially the regional differences between east and west at pixel level and county level respectively.The results show that Chinese population has grown rapidly from 1.005 billion in 1982 to 1.395 billion in 2017.The proportion of population of the western region bounded by the"Hu Huanyong Line"has increasedfrom 5.91%to 6.42%;NPP has shown an overall growth trend among studying years,which increased from 2.69 Pg C in 1982 to 3.24 Pg C in 2015,with a growth rate of 16.60 Tg C/yr.The growth rate of NPP(12.30 Tg C/yr)in the east was nearly three times that(4.30 Tg C/yr)in the west;The per capital NPP in the West is much larg⁃er than that in the east and the whole China.In 1982,2000,2010,and 2017,the per capita NPP in the west and the whole China continued to decline,but the decline rate slowed down slightly.The per capita NPP in the east increased for the first time in 2017.Based on this,it can be seen that Chinese ecological environment is gen⁃eral in a state of restoration,while there are large differences between different regions.Therefore,regional dif⁃ferences should be fully considered in the formulation of relevant policies to achieve the coordinated develop⁃ment of Chinese ecological environment.

关 键 词：人均NPP 胡焕庸线 空间分布 年际变化 

分 类 号：TP751[自动化与计算机技术—检测技术与自动化装置]