山东科学 ›› 2024, Vol. 37 ›› Issue (5): 103-110.doi: 10.3976/j.issn.1002-4026.20240008

• 环境与生态 • 上一篇    下一篇

山东省植被NPP时空变化特征及气候影响分析

刘建军1(), 孙开争1, 公华林1, 朱玉玲2,*()   

  1. 1.山东省济南生态环境监测中心,山东 济南 250101
    2.济南市食品药品检验检测中心,山东 济南 250014
  • 收稿日期:2024-01-10 出版日期:2024-10-20 发布日期:2024-09-29
  • 通信作者: 朱玉玲 E-mail:272781784@qq.com;344613157@qq.com
  • 作者简介:刘建军(1982—),男,高级工程师,研究方向为生态遥感监测与评估。E-mail:272781784@qq.com
  • 基金资助:
    济南市碳监测评估试点项目(SDGP370100000202202001740)

The spatiotemporal variation characteristics and climate impact analysis of vegetation NPP in Shandong Province

LIU Jianjun1(), SUN Kaizheng1, GONG Hualin1, ZHU Yuling2,*()   

  1. 1. Shandong Jinan Center for Ecological Environment Monitoring, Jinan 250101,China
    2. Jinan Center for Food and Drug Inspection and Testing,Jinan 250014,China
  • Received:2024-01-10 Online:2024-10-20 Published:2024-09-29
  • Contact: ZHU Yuling E-mail:272781784@qq.com;344613157@qq.com

摘要:

基于山东省2010—2022年MOD17A3产品数据,采用一元回归趋势分析、变异系数法、偏相关分析、Hurst指数法探讨山东省生态系统植被净初级生产力(NPP)时空分布特征及气候因子的影响。结果显示: 2010—2022年山东省植被NPP呈波动上升的趋势,多年均值为(398.03±150.20) g/(m2·a),高于全国均值,与京津冀地区相近。NPP空间分布差异明显,东部沿海丘陵区高于内陆平原区域。年际变化上,山东省植被NPP整体较为稳定(CV值为0.09)。未来植被NPP变化趋势上,正向趋势与负向趋势的面积接近,结合趋势分析,27.86%的区域呈增长趋势,33.49%的区域呈降低趋势,但由增转降的区域多集中于植被NPP较高的林地区域,需进一步研究。山东省植被NPP与气候因素有正相关关系,气温升高和降水增加有利于植被NPP的增长,但气温较降水对植被NPP有更广的显著性影响区域,且平原农作区植被NPP与气候因子相关性较差。

关键词: 植被NPP, 时空变化, 气候因子, 山东省

Abstract:

Based on MOD17A3 product data for Shandong Province from 2010 to 2022, this study uses univariate regression trend analysis, the coefficient of variation method, partial correlation analysis, and the Hurst index method to investigate the spatiotemporal distribution of vegetation net primary productivity (NPP) for the ecosystem of Shandong Province and analyze the impact of climate factors. Results demonstrate the fluctuating upward trend of vegetation NPP for Shandong Province in recent years, with an annual average of (398.03±150.20) g/(m2·a), higher than the national average and comparable with that of the Beijing-Tianjin-Hebei region. Vegetation NPP varies considerably across different areas. The vegetation NPP in the eastern coastal hilly area is higher than that in the inland plain area. With respect to interannual variation, the overall vegetation NPP in Shandong Province is relatively stable. With regard to the variation trend of vegetation NPP, the areas of positive and negative trends are equivalent. The trend analysis shows that 27.86% of the areas show an increasing trend, whereas 33.49% show a decreasing trend. However, the areas that have shifted from the increasing trend to the decreasing trend are mostly in woodland areas with high vegetation NPP levels, and further research is needed. In general, a positive correlation exists between vegetation NPP and climate factors. Temperature has a wider and more considerable impact on vegetation NPP than precipitation; moreover, the correlation between vegetation NPP and climate factors is poor in plain agricultural areas.

Key words: net primary productivity of vegetation, spatiotemporal variation, climate factors, Shandong Province

中图分类号: 

  • X87

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