Arid
DOI10.1016/j.jaridenv.2016.10.004
Land change and loss of landscape diversity at the Caatinga phytogeographical domain - Analysis of pattern-process relationships with MODIS land cover products (2001-2012)
Schulz, Christian1; Koch, Robert1; Cierjacks, Arne2,3; Kleinschmit, Birgit1
通讯作者Schulz, Christian
来源期刊JOURNAL OF ARID ENVIRONMENTS
ISSN0140-1963
EISSN1095-922X
出版年2017
卷号136页码:54-74
英文摘要

Tropical dry forests are increasingly threatened by land degradation. For the Caatinga seasonally dry forests in Northeast Brazil, recent studies revealed both woody vegetation loss and (re-)gain. A conclusive analysis of land cover and landscape diversity changes is still lacking. To fill this gap, we surveyed pattern-process relationships for the Caatinga phytogeographical domain on different spatial levels for the years 2001-2012 from MODIS land cover data. By a landscape pattern analysis, a set of five landscape metrics was calculated using FRAGSTATS. The spatio-temporal results revealed a general decrease of fragmentation and diversity. The savanna class which comprises also Caatinga dry forests covered large parts of the landscape and gained considerably, whereas other vegetation classes decreased. The distribution of the low vegetated shrublands and grasslands implied degradation risks, in particular at the Sao Fransisco River valley. Large-scaled agriculture was found in the proximity to water reservoirs in the lowlands, which led to local increases of the landscape’s diversity. We quantified both gains and losses of woody vegetation with a notable net gain of 6.7% of the study area. Main changes may be attributed to socio-economic shifts from local to large-scaled agriculture and water infrastructural activities. Overall, our study shows that a multi-temporal, global dataset along with a landscape pattern analysis provides valuable contributions to landscape research and for detecting land cover and landscape diversity changes. (C) 2016 Elsevier Ltd. All rights reserved.


英文关键词Landscape metrics Seasonally dry tropical forests Landscape ecology Degradation Shannon diversity index Desertification
类型Article
语种英语
国家Germany
收录类别SCI-E ; SSCI
WOS记录号WOS:000389108800007
WOS关键词DRY TROPICAL FOREST ; LATIN-AMERICA ; VEGETATION ; RESOLUTION ; METRICS ; SCALE ; DEFORESTATION ; CLIMATE ; INDEXES ; FRAGMENTATION
WOS类目Ecology ; Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/200073
作者单位1.Tech Univ Berlin, Dept Landscape Architecture & Environm Planning, Geoinformat Environm Planning Lab, Str 17 Juni 145, D-10623 Berlin, Germany;
2.Univ Hamburg, Bioctr Klein Flottbek, Biodivers Useful Plants, Ohnhorststr 18, D-22609 Hamburg, Germany;
3.Tech Univ Berlin, Dept Ecol, Ecosyst Sci Plant Ecol, Rothenburgstr 12, D-12165 Berlin, Germany
推荐引用方式
GB/T 7714
Schulz, Christian,Koch, Robert,Cierjacks, Arne,et al. Land change and loss of landscape diversity at the Caatinga phytogeographical domain - Analysis of pattern-process relationships with MODIS land cover products (2001-2012)[J],2017,136:54-74.
APA Schulz, Christian,Koch, Robert,Cierjacks, Arne,&Kleinschmit, Birgit.(2017).Land change and loss of landscape diversity at the Caatinga phytogeographical domain - Analysis of pattern-process relationships with MODIS land cover products (2001-2012).JOURNAL OF ARID ENVIRONMENTS,136,54-74.
MLA Schulz, Christian,et al."Land change and loss of landscape diversity at the Caatinga phytogeographical domain - Analysis of pattern-process relationships with MODIS land cover products (2001-2012)".JOURNAL OF ARID ENVIRONMENTS 136(2017):54-74.
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