本文關(guān)鍵詞：基于決策樹方法的Landsat8 OLI影像紅樹林信息自動(dòng)提取　出處：《國(guó)土資源遙感》2016年02期 　論文類型：期刊論文

  更多相關(guān)文章： 紅樹林 NDMI MNDPI OLI 決策樹

【摘要】：基于廣西山口國(guó)家紅樹林生態(tài)自然保護(hù)區(qū)的Landsat 8 OLI影像數(shù)據(jù),選用廣泛應(yīng)用于植被液態(tài)水含量反演的歸一化差值濕度指數(shù)(normalized difference moisture index,NDMI)和修正的歸一化差值池塘指數(shù)(modified normalized difference pond index,MNDPI)作為分類特征,運(yùn)用決策樹方法進(jìn)行紅樹林信息的自動(dòng)提取。研究結(jié)果表明:紅樹林獨(dú)特的濱海濕地生境特點(diǎn),使其光譜同時(shí)包含植被和濕地信息;MNDPI和NDMI可分別反映可見光-近紅外波段反射率同短波紅外波段反射光譜的反差,可成功應(yīng)用于濕地植被信息的提取,能有效地將紅樹林同其他地物相區(qū)分;采用Landsat8 OLI遙感數(shù)據(jù),并結(jié)合NDMI和MNDPI分類特征構(gòu)建的決策樹模型可有效地提取紅樹林信息,其錯(cuò)分率和漏分率都較低,分別為5.34%和1.69%。
[Abstract]:Guangxi Mountain National Mangrove Nature Reserve of Landsat 8 OLI based on the image data, the widely used in the normalized difference vegetation index and humidity inversion of liquid water content (Normalized Difference Moisture index, NDMI) and modified normalized difference index (modified normalized difference pond the index, MNDPI) as the classification feature extraction using decision tree method of mangrove information. The results showed that the mangrove coastal wetland habitat features unique, the spectrum contains both vegetation and wetland information; MNDPI and NDMI represent contrast visible near infrared reflectance with SWIR reflectance spectra, can be successfully applied to the extraction of wetland vegetation information, can effectively combine with other objects of mangrove distinguish; using Landsat8 OLI remote sensing data, and combined with the decision tree model to construct the NDMI and MNDPI features can effectively extract the mangrove information, error rate and leakage rate are low, 5.34% and 1.69% respectively.
【作者單位】： 南京信息工程大學(xué)地理與遙感學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目“紅樹林冠層高光譜探測(cè)及群落類型識(shí)別研究”(編號(hào):41201461) 江蘇政府留學(xué)獎(jiǎng)學(xué)金共同資助
【分類號(hào)】：TP751
【正文快照】： 0引言紅樹林是生長(zhǎng)在熱帶、亞熱帶沿海潮間帶灘涂上特有的木本植物群落,屬常綠闊葉林,主要分布于淤泥深厚的海灣或河口鹽漬土壤上。紅樹林具有促淤固灘、防浪護(hù)堤、保持生物多樣性和凈化環(huán)境污染等作用[1-2]。然而由于紅樹林生存于海洋與陸地交錯(cuò)的生態(tài)脆弱帶,長(zhǎng)期受到沿海不，

本文編號(hào)：1338169