Arid
DOI10.3390/su14159735
Monitoring Desertification Using a Small Set of Biophysical Indicators in the Brazilian Semiarid Region
Perez-Marin, Aldrin Martin; Vendruscolo, Jhony; Zarate-Salazar, Jhonatan Rafael; De Araujo Queiroz, Heithor Alexandre; Magalhaes, Daniel Lima; Menezes, Romulo S. C.; Fernandes, Izaias Medice
通讯作者Perez-Marin, AM
来源期刊SUSTAINABILITY
EISSN2071-1050
出版年2022
卷号14期号:15
英文摘要Desertification is defined as land degradation in arid, semiarid, and dry sub-humid regions, and it is caused primarily by human activities and climate change. The semiarid region of Northeast (NE) Brazil is a very large, populous region, and thus, it is hard to monitor the dynamics of its desertified areas; therefore, the present study aimed to develop a minimum set of biophysical indicators to qualify and monitor desertification in this region. This approach included sampling a pair of preserved forested areas and nearby degraded, non-forested areas which had no vegetation growth in the previous years. The study was developed in four stages: (a) pilot site selection; (b) quantification and analysis of soil and vegetation biophysical indicators; (c) biophysical indicator selection; and (d) elaboration of the minimum set of biophysical indicators and desertification levels. Of the analyzed 24 biophysical indicators, 11 were retained and subjected to factor analysis by its principal components. This yielded the minimum set of indicators used to estimate the desertification levels of the pilot sites, which consisted of four soil characteristics: Total Organic Carbon (TOC), cation exchange capacity, clay content, and magnesium content. Regressions were conducted using the SQI, and these indicators showed that the TOC had the highest coefficient of determination. In an exploratory analysis, high SQI (low desertification) showed a positive correlation with the normalized difference vegetation index (R = 0.70) and Aridity Index (R = 0.97). This methodological approach could form the basis of a dynamic monitoring system that is capable of supplying objective, quantitative, and easy to obtain information to decision-makers in NE Brazil and other dry ecosystems around the globe.
英文关键词land degradation environmental monitoring soil organic carbon multiple soil classes adaptation
类型Article
语种英语
开放获取类型gold
收录类别SCI-E ; SSCI
WOS记录号WOS:000840159800001
WOS关键词SOIL QUALITY INDEXES ; CAATINGA DRY FOREST ; CARBON STOCKS ; LAND-USE ; DEGRADATION ; SYSTEMS ; IDENTIFICATION ; SENSITIVITY ; ECOSYSTEMS ; MANAGEMENT
WOS类目Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/394618
推荐引用方式
GB/T 7714
Perez-Marin, Aldrin Martin,Vendruscolo, Jhony,Zarate-Salazar, Jhonatan Rafael,et al. Monitoring Desertification Using a Small Set of Biophysical Indicators in the Brazilian Semiarid Region[J],2022,14(15).
APA Perez-Marin, Aldrin Martin.,Vendruscolo, Jhony.,Zarate-Salazar, Jhonatan Rafael.,De Araujo Queiroz, Heithor Alexandre.,Magalhaes, Daniel Lima.,...&Fernandes, Izaias Medice.(2022).Monitoring Desertification Using a Small Set of Biophysical Indicators in the Brazilian Semiarid Region.SUSTAINABILITY,14(15).
MLA Perez-Marin, Aldrin Martin,et al."Monitoring Desertification Using a Small Set of Biophysical Indicators in the Brazilian Semiarid Region".SUSTAINABILITY 14.15(2022).
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