摘要
秦岭地区是中国自然保护区较为集中的地区之一,也是中国重要的生态保护屏障,秦岭中部有多个国家级自然保护区,然而目前鲜有研究分析秦岭中部自然保护区的植被生长状况,且对于自然保护区的保护成效尚不明确,因此探究该区域长时序的植被生长状况有助于了解秦岭地区自然保护区的保护成效及植被生长情况。本文利用Landsat、MODIS、GLASS等遥感数据及相关产品分析了秦岭中部地区14个国家级自然保护区近二三十年归一化植被指数(NDVI)、叶面积指数(LAI)、净初级生产力(NPP)、植被覆盖度(FVC)的空间分布特征及趋势变化情况,并综合4个指标探究秦岭中部自然保护区的植被变化情况与保护成效,研究结果表明,1)在空间上,太白山自然保护区中南部与汉中朱鹮自然保护区南部的植被类型与其他区域存在差异;2)在趋势上,各自然保护区的植被生长状况呈现显著增加趋势或维持稳定状态;3)综合各指标发现,秦岭中部自然保护区的整体保护成效良好,但极个别地区仍需要重点关注。
The Qinling Mountains is one of the regions with the most intensive nature reserves in China,and it is also an important ecological protection barrier in China.There are many national nature reserves in the middle of the Qin-ling Mountains,however,there has been few study on the vegetation growth status,and the protection effectiveness of the nature reserves is still unclear.Therefore,exploring the long-term vegetation growth status in this area can be help-ful to understand the protection effectiveness and vegetation growth of nature reserves in the middle of the Qinling Mountains.This paper used Landsat,MODIS,GLASS,and other remote sensing data and related products to analyze the spatial distribution characteristics and trend of normalized vegetation index(NDVI),leaf area index(LAI),net primary productivity(NPP),and vegetation coverage(FVC).The comprehensive four indicators were used to explore the vegetation growth status and protection effects of nature reserves in the middle of the Qinling Mountains.The con-clusions were as below:1)In terms of space characteristic,the vegetation types in the south-central Taibai Mountain Nature Reserve and the southern part of the Hanzhong Crested Ibis Nature Reserve was different from others;2)In terms of trends,the vegetation growth status of nature reserves were in a significant increase trend or maintained stable;3)Comprehensive the indicators found that the overall protective effect of nature reserves in the middle of Qin-ling Mountains were good,but very few areas still needed to be focused on.
作者
王晓雅
凌子燕
陈研
翟俊
邓雅文
荔琢
彭凯锋
WANG Xiaoya;LING Ziyan;CHEN Yan;ZHAI Jun;DENG Yawen;LI Zhuo;PENG Kaifeng(State Key Laboratory of Remote Sensing Science,Faculty of Geographical Science,Beijing Normal University,Beijing 100875,China;Faculty of Geographical Science,Beijing Normal University,Beijing 100875,China;Beijing Key Laboratory for Remote Sensing of Environment and Digital Cities,Faculty of Geographical Science,Beijing Normal University,Beijing 100875,China;Beibu Gulf Key Laboratory of Environment Change and Re-sources Use,School of Geography and Planning,Nanning Normal University,Nanning 530001,China;School of Geography and Planning,Nanning Normal University,Nanning 530001,China;Satellite Environment Center,Min-istry of Ecology and Environment,Beijing 100094,China)
出处
《自然保护地》
2022年第2期48-59,共12页
Natural Protected Areas
基金
国家重点研发计划项目(2016YFC0503002)
国家重点研发计划项目(2017YFC0506506)
国家重点研发计划项目(42111101004001)
国家自然科学基金项目(42017393)。
关键词
秦岭中部自然保护区
植被指数
生长状况
动态趋势
遥感
nature reserves in the middle of Qinling Mountains
vegetation index
growth status
dynamic trend
re-mote sensing
