2001~2021年海南岛植被覆盖时空动态变化与驱动力分析
张阳阳 , 刘铁冬 , 龚文峰 , 段璇瑜 , 孙雨欣 , 邱梓轩
甘肃农业大学学报 ›› 2023, Vol. 58 ›› Issue (02) : 145 -154.
2001~2021年海南岛植被覆盖时空动态变化与驱动力分析
Analysis of the characteristics of temporal and spatial changes and driving forces of vegetation cover on Hainan Island from 2001 to 2021
目的 了解海南岛植被动态变化特征与驱动力,预测未来植被覆盖度的演变趋势,为海南岛绿色生态系统保护提供科学依据,为政府部门的决策和科研机构的研究提供参考。 方法 利用2001~2021年的MODIS NDVI植被指数产品,估算海南岛年最大植被覆盖度,并用Theil-Sen Median斜率估计、Mann-Kendall显著性检验、变异系数、Hurst指数等研究方法,在时间和空间上对植被覆盖度进行分析,用相关性分析和主成分分析揭示植被覆盖度变化的驱动力。 结果 21 a间海南岛年均植被覆盖度为0.87,中部山区的植被覆盖度较高,年际变化整体呈上升趋势(速率为0.001 6/a);植被覆盖度变异系数均值仅为0.04;未来植被覆盖度呈现减少趋势的面积占比60.82%;人类活动因素中,人均国内生产总值与植被覆盖度变化的相关性系数最高。 结论 21 a间海南岛植被覆盖度整体呈上升趋势,且较稳定;未来植被覆盖度将呈减少趋势;人均国内生产总值是影响植被覆盖度变化的主要人类活动因素。
Objective Understanding the characteristics and driving forces of vegetation dynamic changes in Hainan Island from 2001 to 2021 and predicting the evolution trend of fractional vegetation cover (FVC) in the future can provide a scientific basis for the protection of Hainan Island’s green ecosystem,and provide a theoretical reference for government decision-making and research institutions. Method By using the MODIS NDVI vegetation index products from 2001 to 2021,the annual maximum FVC of Hainan Island was estimated,and the FVC of Hainan Island was analyzed in time and space by using the research methods of Theil-Sen median trend analysis,Mann-Kendall test,coefficient of variation and Hurst index,etc.,and the driving force of FVC change was revealed by correlation analysis and principal component analysis. Result In the last 21 years,the average annual FVC of Hainan Island was 0.87,and the FVC of the central mountainous area was relatively high.The annual FVC of Hainan Island showed an increasing trend (the rate was 0.001 6/ year).The mean coefficient of variation of FVC was only 0.04.The area with a decreasing trend of FVC in the future accounted for 60.82% of the total area. Among human activities,the correlation coefficient between GDP per capita and FVC was the highest. Conclusion Over the past 21 years,the change in FVC in Hainan Island has shown an overall upward trend and has been relatively stable. In the future,the FVC will mainly show a decreasing trend.GDP per capita was the main human activity factor influencing the change in FVC.
植被覆盖度 / NDVI / 动态变化特征 / 海南岛 / 人类活动因素
vegetation coverage / NDVI / dynamic characteristic / Hainan Island / human activity factors
| [1] |
|
| [2] |
|
| [3] |
杨淑萍,韩海东.基于地理探测器的甘肃省NDVI驱动因子定量分析[J].甘肃农业大学学报,2019,54(4):115-123. |
| [4] |
|
| [5] |
冯娴慧,曾芝琳,张德顺.基于MODIS NDVI数据的粤港澳大湾区植被覆盖时空演变[J].中国城市林业,2022,20(1):1-6. |
| [6] |
郑维龙,刘珺.基于NDVI的黄淮海平原2001~2010年植被覆盖变化分析[J].太原理工大学学报,2018,49(3):433-439. |
| [7] |
刘可,杜灵通,侯静, |
| [8] |
邢愿,贺中华.基于NDVI的贵州省植被覆盖时空特征分析[J].华南师范大学学报(自然科学版),2021,53(2):84-95. |
| [9] |
姜萍,胡列群,肖静, |
| [10] |
张圳,张弥,肖薇, |
| [11] |
|
| [12] |
罗红霞,王玲玲,曹建华, |
| [13] |
张一然,文小航,罗斯琼, |
| [14] |
穆少杰,李建龙,陈奕兆, |
| [15] |
|
| [16] |
袁丽华,蒋卫国,申文明, |
| [17] |
|
| [18] |
曾旭婧,邢艳秋,单炜, |
| [19] |
|
| [20] |
|
| [21] |
易扬,胡昕利,史明昌, |
| [22] |
|
| [23] |
涂又,姜亮亮,刘睿, |
| [24] |
|
| [25] |
|
| [26] |
|
| [27] |
桑国庆,唐志光,邓刚, |
| [28] |
李伟光,易雪,蔡大鑫, |
| [29] |
罗红霞,戴声佩,刘恩平, |
| [30] |
李伟光,田光辉,邹海平, |
| [31] |
张丽,廖静娟,袁鑫, |
海南省自然科学基金项目“城市绿地空间结构与鸟类栖息地关系研究—以海口市典型绿地为例”(421MS013)
海南省教育厅项目“‘一流本科’建设背景下的园林专业虚拟仿真教学改革与实践”(Hnjg2021ZD⁃9)
海南大学科研启动基金(KYQD(ZR)1863)(KYQD(ZR)20057)
海南大学教育教学改革研究项目(hdjy2111)
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