南京师大学报(自然科学版)
南京師大學報(自然科學版)
남경사대학보(자연과학판)
Journal of Nanjing Normal University (Natural Science Edition)
2015年
3期
107-113
,共7页
滩涂植被%生态演替%景观指数%遥感
灘塗植被%生態縯替%景觀指數%遙感
탄도식피%생태연체%경관지수%요감
beach vegetation%ecological succession%landscape index%remote sensing
以苏北浅滩滩涂植被为研究对象,利用1993年、2002年、2013年3个时相的遥感影像数据,运用景观生态学方法和RS、GIS技术,在遥感处理软件ENVI4.7中,经图像裁剪、配准等图像预处理后,采用计算机监督分类和人工目视解译相结合的方法进行滩涂植被解译分析.分析结果表明:①苏北浅滩滩涂植被主要有芦苇、碱蓬、獐毛和米草;②景观指数计算结果表明滩涂植被的破碎化程度不断提高,景观多样性指数下降,景观内部的异质性增强;③自然演替规律在滩涂植被的演替过程中越来越弱,人类活动对滩涂植被景观的影响变得更加重要.
以囌北淺灘灘塗植被為研究對象,利用1993年、2002年、2013年3箇時相的遙感影像數據,運用景觀生態學方法和RS、GIS技術,在遙感處理軟件ENVI4.7中,經圖像裁剪、配準等圖像預處理後,採用計算機鑑督分類和人工目視解譯相結閤的方法進行灘塗植被解譯分析.分析結果錶明:①囌北淺灘灘塗植被主要有蘆葦、堿蓬、獐毛和米草;②景觀指數計算結果錶明灘塗植被的破碎化程度不斷提高,景觀多樣性指數下降,景觀內部的異質性增彊;③自然縯替規律在灘塗植被的縯替過程中越來越弱,人類活動對灘塗植被景觀的影響變得更加重要.
이소북천탄탄도식피위연구대상,이용1993년、2002년、2013년3개시상적요감영상수거,운용경관생태학방법화RS、GIS기술,재요감처리연건ENVI4.7중,경도상재전、배준등도상예처리후,채용계산궤감독분류화인공목시해역상결합적방법진행탄도식피해역분석.분석결과표명:①소북천탄탄도식피주요유호위、감봉、장모화미초;②경관지수계산결과표명탄도식피적파쇄화정도불단제고,경관다양성지수하강,경관내부적이질성증강;③자연연체규률재탄도식피적연체과정중월래월약,인류활동대탄도식피경관적영향변득경가중요.
Taking beach vegetation as an example,using remote sensing digitized data from 1993,2002 and 2013,and applying GIS techniques and methods of landscape ecology,the image was processed using the ENVI Imagine 4.7 image processing software,including clipping,registration. It was classified and interpreted through supervised classification and visual interpretation methods. The result showed us that from the following three aspects. Firstly,the beach vegetation mainly includes phragmites cammunis,suaeda salsa,Aeluropus sinensis and Spartina alterniflora. Secondly,the result of landscape index indicated that beach vegetation was broken greatly,diversity index lower and landscape heterogeneity enhanced. Thirdly, in the succession process of beach vegetation,human activities have increased and natural succession law’s influence decreased obviously.