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林业资源管理 ›› 2018, Vol. 0 ›› Issue (1): 117-125.doi: 10.13466/j.cnki.lyzygl.2018.01.017

• 科学研究 • 上一篇    下一篇

1982—2015年河北省生态环境支撑区植被覆盖动态及其可持续性

王彦芳1(), 刘敏2, 郭英3   

  1. 1.河北省社会科学院 河北省生态环境建设研究中心,石家庄 050051
    2.中国地质科学院水文地质环境地质研究所,石家庄 050061
    3.中国科学院遗传与发育生物学研究所农业资源研究中心 农业水资源重点实验室 河北省节水农业重点实验室,石家庄 050021
  • 收稿日期:2017-10-12 修回日期:2017-11-02 出版日期:2018-02-28 发布日期:2020-09-27
  • 作者简介:王彦芳(1984-),女,内蒙古乌兰察布人,助理研究员,博士,主要从事生态遥感和生态环境建设方面的研究。Email:wangyanfang517@126.com
  • 基金资助:
    2017年度河北省社会科学基金项目(HB17YJ089)

Vegetation Dynamics and Sustainability in Ecological Supporting Areas of Hebei 1982—2015

WANG Yanfang1(), LIU Min2, GUO Ying3   

  1. 1. Research Center for Hebei Ecological Environmental Construction,Hebei Academy of Social Sciences,Shijiazhuang 050051,China
    2. Institute of Hydrology and Environmental Geology,Chinese Academy of Geological Sciences,Shijiazhuang 050061,China
    3. Key Laboratory of Agricultural Water Resources,Hebei Key Laboratory of Agricultural Water-Saving,Center for Agricultural Resources Research,Institute of Genetics and Developmental Biology,Chinese Academy of Sciences,Shijiazhuang 050021,China
  • Received:2017-10-12 Revised:2017-11-02 Online:2018-02-28 Published:2020-09-27

摘要:

植被是第一性生产者,是维持生物圈物质循环和能量流动的关键因素。河北省建设京津冀生态环境支撑区,植被建设占重要地位。利用1982—2015年的GIMMS NDVI3g数据,经像元二分法获得植被覆盖度,采用最小二乘法趋势分析和Hurst可持续分析方法分析近34年河北省各生态环境支撑区植被覆盖度的空间分布特征与长期变化趋势。结果表明,1982—2015年河北省生长季年平均植被覆盖度为49.4%。34年间,河北省植被覆盖度呈现整体增加的趋势,增加幅度为1.5%/10a,植被覆盖度增加的区域占总面积的90%以上。可持续性上,植被正向变化的可持续性较强,且以持续改善为主。由变化趋势与Hurst指数的耦合信息得出,植被覆盖增加区和退化区的Hurst指数的平均值分别为0.86和0.85,表明未来变化趋势将保持一致,即改善的持续改善,退化的持续退化。

关键词: NDVI, GIMMS NDVI3g, 京津冀, 植被覆盖度, 可持续性

Abstract:

Vegetation,as the first producer,plays an important role in the energy transformation and material cycle of the ecosystem.Using GIMMS NDVI3g dataset,spatial distribution,trend,and sustainability of vegetation fractional cover in Hebei were analyzed by trend analysis and Hurst methods.The result shows that the average vegetation fraction cover within growing season from 1982 to 2015 is 49.4%.The vegetation fraction cover shows an increasing trend with a linear slope of 1.5%/10a from 1982 to 2015.The area with increased vegetation fractional cover occupies more than 90% of the total land.Results of Hurst analyses indicated the regional vegetation cover will increase in sustainability in the future.The coupling of slope and hurst analysis shows the index of hurst in the increased and decreased area is 0.86 and 0.85,which indicates the trend will persist in future years.

Key words: NDVI, GIMMS NDVI3g, Beijing-Tianjin-Hebei, vegetation fractional cover, sustainability

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