首页|2001-2020年厦漳泉地区植被净初级生产力时空演变特征及其影响因素

2001-2020年厦漳泉地区植被净初级生产力时空演变特征及其影响因素

扫码查看
植被净初级生产力(net primary productivity,NPP)是评价生态系统碳循环的重要指标,研究植被NPP的时空演变规律及影响因子对于制定科学合理的可持续发展战略具有实际参考意义.本研究基于土地覆被数据、气候数据(气温和降水)和MODIS平台的NPP产品,采用相关性分析、贡献度分析和土地覆被转移矩阵等结合空间分析方法,研究2001-2020年厦漳泉地区植被NPP的演变特征,定量阐述土地覆被变化和气候变化对植被NPP的影响,并对植被NPP变化驱动因子进行分析.结果表明:厦漳泉地区植被NPP年均值在938.1~1100.9 g C·m-2·a-1范围内波动,整体减少趋势不明显;林地的植被NPP总值(11117.40 GgC)和增速(103.75 GgC·a-1)在所有土地覆被类型中最高;厦漳泉地区植被NPP与气温呈正相关,与降水呈负相关,与气温的偏相关显著性要强于降水量,且厦漳泉地区大部分地区植被NPP受非气候因素影响;不同时期不同土地覆被类型植被NPP变化的主导因素在气候变化和土地覆被变化之间转化.
Spatial-temporal variations and influencing factors of vegetation net primary productivity in Xiamen-Zhang-zhou-Quanzhou Region from 2001 to 2020
Net primary productivity(NPP)is a crucial index for evaluating the regional carbon cycle.Understand-ing the spatiotemporal variation of NPP and its influencing factors has practical significance for formulating scientific and rational sustainable development strategies.In this study,the spatiotemporal variations of NPP in the Xiamen-Zhangzhou-Quanzhou Region during 2001-2020 were examined using correlation analysis,land cover transfer ma-trix,and contribution analysis in combination with spatial analysis methods based on land cover data,climate data(temperature and precipitation),and NPP products of MODIS platform.The effects of land cover change and cli-mate change on NPP were quantitatively described,and the driving factors of NPP change were analyzed.The re-sults showed that the annual mean NPP in the Xiamen-Zhangzhou-Quanzhou Region fluctuated in the range of 938.1-1100.9 g C·m-2·a-1,without obvious decreasing trend in general.Forest land had the highest total NPP value(11117.40 Gg C)and growth rate(103.75 Gg C·a-1)among all land cover types.The NPP in Xiamen-Zhangzhou-Quanzhou Region was positively correlated with air temperature and negatively correlated with precipita-tion.The partial correlation between NPP and air temperature was stronger than that between NPP and precipita-tion.The NPP in most areas of this region was affected by non-climatic factors.In different periods,the dominant factors of NPP change in different land cover types shifted between climate change and land cover change.

net primary productivityXiamen-Zhangzhou-Quanzhou Regionclimate changeland cover changedriving factor

王升红、陆东芳、陈雨如、唐雅兰、郑郁善、黄宇斌

展开 >

福建农林大学风景园林与艺术学院,福州 350000

净初级生产力 厦漳泉 气候变化 土地覆被变化 驱动因素

国家重点研发计划(十三五)福建省社会科学基金规划项目福建农林大学校级重点教学改革项目

2016YFD0600902FJ2022BF061115/111422128

2024

生态学杂志
中国生态学学会

生态学杂志

CSTPCD北大核心
影响因子:1.439
ISSN:1000-4890
年,卷(期):2024.43(3)
  • 1
  • 43