湖北农业科学 ›› 2020, Vol. 59 ›› Issue (9): 70-76.doi: 10.14088/j.cnki.issn0439-8114.2020.09.014

• 资源·环境 • 上一篇    下一篇

2000—2015年太行山地区NDVI变化及驱动因素分析

李新元, 王莉, 景海涛, 范晨雨, 余汛   

  1. 河南理工大学测绘与国土信息工程学院,河南 焦作 454003
  • 收稿日期:2019-09-16 发布日期:2020-07-22
  • 通讯作者: 王莉(1981-),女,副教授,博士,主要从事空间数据库和空间数据挖掘相关理论与应用研究,(电子信箱)wangli29@hpu.edu.cn。
  • 作者简介:李新元(1994-),男,河南驻马店人,在读硕士研究生,研究方向为地理信息技术及应用,(电话)15738938557(电子信箱)1436739575@qq.com。
  • 基金资助:
    河南省科技攻关项目( 192102310025)

Analysis of NDVI changes and driving factors in Taihang mountain area from 2000 to 2015

LI Xin-yuan, WANG Li, JING Hai-tao, FAN Chen-yu, YU Xun   

  1. College of Surveying and Mapping and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China
  • Received:2019-09-16 Published:2020-07-22

摘要: 基于2000—2015年MODIS NDVI数据,结合同期气象、土地利用等相关数据进行研究。根据相关计算获得NDVI变化数据和土地利用类型变化数据,对NDVI变化数据进行反向研究,寻找影响NDVI变化的驱动因素。结果表明,2000—2015年研究区植被覆盖情况整体得到改善,平均增速为0.007 5/年;NDVI增加区域的驱动因素是气象因素对植被生长的促进作用;人类活动使耕地的农作物长势更加旺盛,直接导致了耕地范围内的NDVI提高。太行山绿化工程、退耕还林工程、农村人口向城市转移等生态保护措施对草地、林地、水域的植被生长也产生了积极影响,人类活动对离城市较远的自然区域植被起促进作用;NDVI减少区域的驱动因素是人类活动使太行山城市周边地区的耕地、草地面积减少,城市面积增加,对城市及其周边地区的植被生长起减弱作用。

关键词: NDVI, ArcGIS, 植被覆盖度, 气候因素, 人类活动, 太行山地区

Abstract: This research was based on MODIS NDVI data from 2000 to 2015, combined with meteorological, land use and other relevant data of the same period. According to the NDVI change data and land use type change data obtained by relevant calculations, the NDVI change data were reversely studied to find the driving factors that affect NDVI change. The results showed that, from 2000 to 2015, the overall vegetation coverage in the study area had been improved, with an average growth rate of 0.007 5/a. The driving factor for the increase of NDVI was the promotion effect of meteorological factors on vegetation growth. Human activities directly led to the increase of NDVI within the cultivated land by making the cultivated land crops grow more vigorous. Human activities played a role in promoting vegetation in natural areas far from cities, such as Taihang mountain afforestation project, farmland conversion project, rural population transfer to cities and other ecological protection measures, which had a positive impact on the change of NDVI in grassland, woodland and water area. The driving factor of NDVI reduction area was the decrease of cultivated land and grassland area around the city and the increase of urban area in Taihang mountain area. Human activities weaken the vegetation growth in the city and its surrounding areas.

Key words: NDVI, ArcGIS, vegetation coverage, climatic factors, human activities, Taihang mountain area

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