Show simple item record

Author
dc.contributor.author
Kovács, Ferenc 
Author
dc.contributor.author
Gulácsi, András 
Availability Date
dc.date.accessioned
2018-11-13T07:28:41Z
Availability Date
dc.date.available
2018-11-13T07:28:41Z
Release
dc.date.issued
2018
uri
dc.identifier.uri
http://hdl.handle.net/10831/39323
Language
dc.language.iso
magyarhu_HU
Title
dc.title
MODIS EVI/NDVI alapú monitoring erdőterületeken 2000–2017 között a klímaváltozás földrajzi hatásának kimutatásábanhu_HU
Version
dc.description.version
megjelent változathu_HU
Language
dc.language.rfc3066
hun
Rights
dc.rights.holder
Magyar Földmérési, Térképészeti és Távérzékelési Társasághu_HU
Abstract in English
dc.description.abstracteng
Due to the complexity of the climate change induced processes, efforts should be made to formulate practical proposals based on synthesis, in which the use of vegetation monitoring is supported by free remote sensing database services. The forest ecosystem is a particularly important climatic indicator factor. In our study area, Danube-Tisza Interfluve in Hungary the proportion of the forests is high and the afforestation is intense. For the geographic evaluation of climate change, MOD13Q1 NDVI/EVI data in the summer period of 2000-2017 were investigated. In the whole VI series the biomass does not show any trend change in neither of the forest categories.. Reduction in biomass is typical for consecutive drier years, but a subsequent wet season is suifficient for the woody biomass product to avoid a decrease over the longer term. In the main dry periods of July-August, the effect of dry year following the rainy years immediately reduces the green biomass. Based on climate predictions, a permanent decrease rate in biomass is expected in the future. The changes in the vegetation period were also wellassessed in the relatively short 18-year data series, such as a change in spring intensity or an increase in summer biomass product. For example, mixed forests not only shows growth in the sprint, but also at the highest summer values. The deciduous characteristic is the decrease in the maximum biomass production. Currently, the changes over the almost two decades are compensated, but forests are vulnerable within a short period of time. According to the standardized EVI anomalies, in consecutive years with significant biomass differences, production in the north and southwest part of the Danube-Tisza Interfluve was reduced. The determination coefficients between VI data and CARPATCLIM drought index data show strong relationship (R2~0,85). This connection is confirmed by the LANDSAT OLI VI data from 2015 as well.hu_HU
Doi ID
dc.identifier.doi
10.30921/GK.70.2018.5.3
Issue Number
dc.identifier.issue
5hu_HU
Journal
dc.identifier.jtitle
Geodézia és Kartográfiahu_HU
Last Page
dc.identifier.lpage
27hu_HU
First Page
dc.identifier.spage
19hu_HU
Volume Number
dc.identifier.volume
70. évf.hu_HU
access
dc.rights.access
hozzáférhetőhu_HU
Keyword English
dc.subject.en
climate changehu_HU
Keyword English
dc.subject.en
forest monitoringhu_HU
Class
dc.type.genre
publikáció/alkotáshu_HU
Type
dc.type.resrep
tudományoshu_HU
Author
dc.contributor.inst
ELTE szervezeti egységen kívülihu_HU
Keywords
dc.subject.hu
erdőmonitoringhu_HU
Keywords
dc.subject.hu
EVIhu_HU
Keywords
dc.subject.hu
klímaváltozáshu_HU
Keywords
dc.subject.hu
MODIShu_HU
Keywords
dc.subject.hu
NDVIhu_HU
Type
dc.type.type
folyóiratcikkhu_HU
Release Date
dc.description.issuedate
2018hu_HU


Files in this item

MODIS EVI/NDVI alapú monitoring erdőterületeken 2000–2017 között a klímaváltozás földrajzi hatásának kimutatásában
 

This item appears in the following Collection(s)

Show simple item record