[1]刘琪,景海涛*,刘盼盼,等.太行山区NDVI时空变化及其与气候因子的关系[J].西北林学院学报,2023,38(1):1-9.[doi:10.3969/j.issn.1001-7461.2023.01.01]
　LIU Qi,JING Hai-tao*,LIU Pan-pan,et al. Research on the Relationship Between Temporal and Spatial Changes of NDVI and Climate Factors in the Taihang Mountains[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2023,38(1):1-9.[doi:10.3969/j.issn.1001-7461.2023.01.01]
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太行山区NDVI时空变化及其与气候因子的关系()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第38卷
期数:
2023年第1期
页码:
1-9
栏目:
出版日期:
2023-01-31

文章信息/Info

Title:
 Research on the Relationship Between Temporal and Spatial Changes of NDVI and Climate Factors in the Taihang Mountains
文章编号:
1001-7461(2023)01-0001-09
作者:
 刘琪; 景海涛*; 刘盼盼; 汤金颖; 王磊
 （河南理工大学 测绘与国土信息工程学院，河南 焦作 454000）
Author(s):
 LIU Qi; JING Hai-tao*; LIU Pan-pan; TANG Jin-ying; WANG Lei
 （School of Surveying and Land Information Engineering,Henan Polytechnic University,Jiaozuo 454000,Henan,China）
关键词:
 ; 植被覆盖度; NDVI; 太行山; 时间滞后性; 相关性分析
Keywords:
 ; vegetation coverage;  NDVI;  the Taihang Mountains;  time lag;  correlation analysis
分类号:
S716.3
DOI:
10.3969/j.issn.1001-7461.2023.01.01
文献标志码:
A
摘要:
 为明确太行山区长时间尺度植被覆盖度变化规律及其对气候因子的响应机制，采用1998-2018年的SPOT VEGETATION/NDVI卫星遥感数据，通过趋势线分析法、相关系数法与时滞相关分析法等，从时间和空间2个尺度分析太行山区植被生长状况、覆盖变化及其对气温和降水的响应程度。结果表明：1）太行山区总体植被覆盖率较高，77.5％区域面积的NDVI值在0.6~0.8范围内；2）21 a间太行山区NDVI值随时间呈现波浪式显著增加趋势，平均增长速率为0.03/10 a（线性增长率为0.067/10 a），通过0.01的显著性检验；太行山区植被覆盖在空间分布上呈现西北低、东南高，中部区域高低值交叉分布的特点；3）太行山区NDVI与气温在空间上呈现负相关为主，呈负相关面积约占太行山区总面积的54.37％，主要分布在太行山区的中部区域、南部边缘区域以及东北沿线区域；NDVI与降水呈现正相关为主，呈正相关的面积约占太行山区总面积的81.89％，整体上可以概括为从太行山区的西北区域到东南区域相关系数（R）逐渐变小。4）时间尺度上，NDVI与气温和降水均没有明显的相关性，但NDVI与降水的相关系数（R=0.286）大于与气温的相关系数（R=0.026）；5）在滞后性分析中，太行山区NDVI 与气温和降水在月时间尺度上有明显的时间滞后性关系， 其中NDVI与气温的滞后性是1个月，与降水的滞后性是2个月。
Abstract:
 In order to clarify the regularity of long term vegetation cover changes in the Taihang Mountains and its response mechanism to climate factors,in this paper,SPOT VEGETATION/NDVI satellite remote sensing data from 1998-2018 were used to analyze the vegetation growth status,cover changes and its response degree to the temperature and precipitation in the area of the Taihang Mountains from both temporal and spatial scales by the trend line analysis,correlation coefficient and time lag correlation analysis methods.The results showed that 1) the overall vegetation coverage rate was high in the Taihang Mountains,and the NDVI-value of 77.5% area was 0.6-0.8.2) During last 21 years,the NDVI-value in the Taihang Mountains increased significantly with time in a wave pattern,the average growth rate was 0.003/10a (the linear growth rate was 0.067/10a) and passed the significance test of 0.01.The spatial distribution of the vegetation cover in the Taihang Mountains showed the characteristics of low in the northwest and high in the southeast,and the cross distribution of high and low values in the central region.3) From the spatial scale,The NDVI was mainly negatively correlated with air temperature,accounting for 54.37% of the total area,and mainly distributed in the central region,southern edge and along the northeast regions.The NDVI was mainly positively correlated with precipitation,accounting for 81.89% of the total area.In general,the correlation coefficient (R) became progressively smaller from the northwest region to the southeast region in the Taihang Mountains.4) From the time scale,The NDVI had no significant correlation with temperature and precipitation,but the correlation coefficient between NDVI and precipitation (R=0.286) was bigger than that between the NDVI and temperature (R=0.026).5) About the lag analysis,there was an obvious time lag relationship among the NDVI,temperature and precipitation in the Taihang Mountains.The lag between NDVI and temperature was one month and between the NDVI and precipitation was two months.

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备注/Memo

备注/Memo:
 收稿日期：2021-11-15修回日期：2021-12-16
基金项目：国家自然科学基金青年基金(41801318)；河南省科技攻关计划(212102310432)；河南理工大学博士基金(B2017-14)。
第一作者：刘琪。研究方向：生态遥感和国土空间规划。E-mail：1217427369@qq.com
*通信作者：景海涛，博士，教授，硕士生导师。研究方向：3S技术集成与应用。E-mail：jht@hpu.edu.cn
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