林玉英,胡喜生,邱荣祖,张正雄,林乔,林金国.基于Landsat影像的NDVI对植被与影响因子交互耦合的响应[J].农业机械学报,2018,49(10):212-219.
LIN Yuying,HU Xisheng,QIU Rongzu,ZHANG Zhengxiong,LIN Qiao,LIN Jinguo.Responses of Landsat-based NDVI to Interaction of Vegetation and Influencing Factors[J].Transactions of the Chinese Society for Agricultural Machinery,2018,49(10):212-219.
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基于Landsat影像的NDVI对植被与影响因子交互耦合的响应   [下载全文]
Responses of Landsat-based NDVI to Interaction of Vegetation and Influencing Factors   [Download Pdf][in English]
投稿时间:2018-06-16  
DOI:10.6041/j.issn.1000-1298.2018.10.024
中文关键词:  植被覆盖  归一化植被指数  闽江上游  Landsat
基金项目:国家自然科学基金项目(41201100)和福建省自然科学基金项目(2015J01606)
作者单位
林玉英 福建农林大学 
胡喜生 福建农林大学 
邱荣祖 福建农林大学 
张正雄 福建农林大学 
林乔 福建农林大学 
林金国 福建农林大学 
中文摘要:植被是陆地最重要的生态系统,在全球气候变化中发挥了重要的调节作用,研究植被时空动态变化具有重要的科学意义和现实价值。基于2007年、2012年和2016年Landsat卫星遥感影像提取的归一化植被指数(NDVI)以及三明市区二类调查矢量数据,研究了闽江上游区域近10年的植被NDVI指数的时空变化特征及其影响因子。结果表明:研究区2007年、2012年和2016年的NDVI指数值逐渐提高,分别为0.72、0.75和0.79,植被覆盖度高,总体生态质量较好;NDVI低值区位于沙溪两侧带状的市辖区所在地、各乡镇居民集中点以及道路网络周边;不同植被类型的NDVI指数由大到小依次为:阔叶树林、灌木林、马尾松林、竹林、杉木林、杂木林、桉树林、其他林地、经济林、檫树林、非林地;NDVI指数值随着林龄、郁闭度和坡度的增加逐渐增加,随着立地等级的提高而下降。进一步对NDVI指数对植被与影响因子交互耦合的响应进行分析,得到结果:依据不同植被类型的NDVI指数随着林龄变化规律的不同,将植被划分为:稳步上升型,如阔叶树林和马尾松林;前期上升快而后期慢型,如桉树林;先升后降型,如杉木林和其他林地。马尾松林的NDVI指数呈现随着坡度的增加而增加的趋势;而其他森林植被类型的NDVI指数呈现随着坡度的增加先升后降,在坡度为30°~40°处达到最高值;不同植被类型的NDVI指数对郁闭度的响应机制不同。
LIN Yuying  HU Xisheng  QIU Rongzu  ZHANG Zhengxiong  LIN Qiao  LIN Jinguo
Fujian Agriculture and Forestry University,Fujian Agriculture and Forestry University,Fujian Agriculture and Forestry University,Fujian Agriculture and Forestry University,Fujian Agriculture and Forestry University and Fujian Agriculture and Forestry University
Key Words:vegetation cover  normalized difference vegetation index  upper reaches of Minjiang River  Landsat
Abstract:Vegetation is the most important ecosystem in the earth, which plays an important regulatory role in global climate change. Research on the temporal and spatial dynamic changes of vegetation has important scientific and practical value. Based on the normalized difference vegetation index (NDVI) of Landsat satellite remote sensing imagery extracted in 2007, 2012 and 2016 and the forest inventory data of Sanming City, the spatio-temporal changes of NDVI of Minjiang River upstream area in the last 10 years and the influencing factors were studied. The results showed that the NDVI values of the study area in 2007, 2012 and 2016 were increased gradually, and their values were 0.72, 0.75 and 0.79, respectively, which indicated that the coverage of vegetation was high, and the overall ecological quality was good. The lower NDVI values were located in the urban area, the concentration points of the township residents and near the road network. The NDVI values of different vegetation types were in a descending trend as broadleaf forest, shrub forest, Masson pine forest, bamboo forest, Chinese fir forest, miscellaneous wood forest, eucalyptus forest, other wooded land, economic forest, eucalyptus forest and non-forest land. NDVI index value was gradually increased with the increase of forest age, canopy closure and slope, while it was decreased with the increase of grade of the site quality. According to variation of changing dynamics of NDVI index with age of different types of vegetation, and the vegetation was divided into the following three types: type of steadily rising, such as broad-leaved forest and Pinus massoniana forest;type of rising fast at early stage and slow at late stage, such as eucalyptus forest;type of rising first and then fall, such as Chinese fir forest and other woodland. The NDVI value of Pinus massoniana forest was increased with the increase of slope, while the NDVI value of other forest vegetation types was risen first and then decreased with the increase of slope, and reached the highest value at the slope of 30°~ 40°. The NDVI index values of different vegetation types had different responses to canopy closure.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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