Journal of Arid Environments最新文献_第10页

Salinity shapes vertical distribution of sediment microbial community in Ebinur Lake, China 盐度影响中国额比湖沉积物微生物群落的垂直分布

IF 2.7 3区环境科学与生态学

Journal of Arid Environments Pub Date : 2024-04-26 DOI: 10.1016/j.jaridenv.2024.105172

Keqiang Shao, Xingyu Jiang, Yang Hu, Xiangming Tang, Guang Gao

{"title":"Salinity shapes vertical distribution of sediment microbial community in Ebinur Lake, China","authors":"Keqiang Shao, Xingyu Jiang, Yang Hu, Xiangming Tang, Guang Gao","doi":"10.1016/j.jaridenv.2024.105172","DOIUrl":"https://doi.org/10.1016/j.jaridenv.2024.105172","url":null,"abstract":"<div><p>The microbial communities in saline lakes play important roles in maintaining their unique ecosystems. However, little is known about the vertical distribution of the sediment microbial communities in saline lakes. We therefore studied the vertical distribution of the sediment microbial communities and their relationships with environmental factors in Ebinur Lake, China. Our sediment cores, collected in 2018, were analyzed using Illumina MiSeq sequencing. The results indicated that microbial diversity significantly increased in the sediment core with increasing salinity. At the phylum level, the six most abundant microbes were Proteobacteria, Chloroflexi, Bacteroidetes, Firmicutes, Gemmatimonadetes and Deinococcus-Thermus, accounting for 42.9%, 10.7%, 9.6%, 5.2%, 4.6% and 3.6% of the total reads, respectively; At the genus level, the six most abundant genera were <em>Halothiobacillus</em>, <em>Desulfotignum</em>, <em>Truepera</em>, <em>Salipaludibacillus</em>, <em>Marinobacter</em> and <em>Halomonas</em>, accounting for 15.4%, 4.8%, 3.6%, 2.7%, 2.6% and 2.3% of the total reads respectively. There were significant vertical variations in microbial community composition (MCC) between upper layers and lower layers. Canonical correspondence analysis demonstrated that salinity was the dominant environmental factor affecting the vertical variation of sediment MCC. Thus, this study could greatly improve our understanding of the MCC of saline lakes in the arid and semi-arid ecosystems.</p></div>","PeriodicalId":51080,"journal":{"name":"Journal of Arid Environments","volume":"222 ","pages":"Article 105172"},"PeriodicalIF":2.7,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140647225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Geospatial distribution of qanats in middle eastern countries: Potential for sustainable groundwater system 中东国家坎儿井的地理空间分布：可持续地下水系统的潜力

IF 2.7 3区环境科学与生态学

Journal of Arid Environments Pub Date : 2024-04-24 DOI: 10.1016/j.jaridenv.2024.105170

Mostafa Mohajerani , Fahimeh Dokhanian , Hassan Estaji , Dieter Boer , Masoud Norouzi

{"title":"Geospatial distribution of qanats in middle eastern countries: Potential for sustainable groundwater system","authors":"Mostafa Mohajerani , Fahimeh Dokhanian , Hassan Estaji , Dieter Boer , Masoud Norouzi","doi":"10.1016/j.jaridenv.2024.105170","DOIUrl":"https://doi.org/10.1016/j.jaridenv.2024.105170","url":null,"abstract":"<div><p>Serious concerns have arisen regarding the depletion of groundwater aquifers and water shortage, particularly in the Middle East. The utilization of qanat, subterranean tunnel-wells, may serve as a solution to addressing water scarcity and present targeted strategies toward sustainable groundwater management. This research presents an analysis of the spatial distribution of active qanats in Afghanistan, Iran, Iraq, and Syria, considering the annual rainfall rate, the elevation from sea level, water stress risks, and groundwater table decline. It aims to identify the qanat sites that may be maintained and utilized. The findings reveal distinct geographical clusters of qanats, with a concentration in mountainous regions characterized by consistently high elevations ranging from 1500 to 2500 m above sea level and annual rainfall rates between 200 and 300 mm. In contrast, a more sporadic presence is observed in low-lying plains with elevations ranging from sea level to 1000 m, where the annual rainfall ranges between 300 and 600 mm. Participation in the restoration, maintenance, and utilization of qanats in regions facing high water stress and the risk of groundwater table decline, such as the central plateau of Iran, may offer a sustainable solution to water risk challenges.</p></div>","PeriodicalId":51080,"journal":{"name":"Journal of Arid Environments","volume":"222 ","pages":"Article 105170"},"PeriodicalIF":2.7,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140645188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Local ecological knowledge of forage plants for goat farming and perceptions about pollination of tree species in the arid Chaco 当地人对山羊饲养饲料植物的生态知识以及对干旱查科地区树种授粉的看法

IF 2.7 3区环境科学与生态学

Journal of Arid Environments Pub Date : 2024-04-23 DOI: 10.1016/j.jaridenv.2024.105167

Victoria Marquez , Lucas M. Carbone , N. David Jiménez-Escobar , Andrés Horacio Britos , Ramiro Aguilar , Fernando Zamudio

{"title":"Local ecological knowledge of forage plants for goat farming and perceptions about pollination of tree species in the arid Chaco","authors":"Victoria Marquez , Lucas M. Carbone , N. David Jiménez-Escobar , Andrés Horacio Britos , Ramiro Aguilar , Fernando Zamudio","doi":"10.1016/j.jaridenv.2024.105167","DOIUrl":"https://doi.org/10.1016/j.jaridenv.2024.105167","url":null,"abstract":"<div><p>Local ecological knowledge (LEK) of forage resources available in the forest is crucial in the sustainability of extensive grazing systems in the arid Chaco region. Here, we document goat farming management strategies of local peasants, assess their LEK about forage plants and evaluate the local perception related to pollination of native tree species. We used semi-structured interviews to obtain ethnoecological information and a cognitive approach to inquire about the plant species considered as fodder and their relative importance. Peasants listed a total of 48 ethnospecies (60 species from 23 botanical families) used as fodder. The most important forage plants in our study were <em>Neltuma</em> spp., <em>Sarcomphalus mistol</em> and <em>Castela coccinea</em>, which provide high quality fruits and also leaves as forage at different moments of the year. Local producers did not identify pollination as a key factor for the production of forage fruits, but they did emphasize the importance of climatic factors for fruit production. This ethnoecological information related to forage plants and factors that determine fruit production is important to understand peasant management systems that sustain local communities and play an important role in forest persistence.</p></div>","PeriodicalId":51080,"journal":{"name":"Journal of Arid Environments","volume":"222 ","pages":"Article 105167"},"PeriodicalIF":2.7,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140638006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Numerical simulation of shelter effect assessment for single-row windbreaks on the periphery of oasis farmland 绿洲农田外围单排防风林的遮蔽效果评估数值模拟

IF 2.7 3区环境科学与生态学

Journal of Arid Environments Pub Date : 2024-04-23 DOI: 10.1016/j.jaridenv.2024.105165

Chenchen He , Wenyan Shao

{"title":"Numerical simulation of shelter effect assessment for single-row windbreaks on the periphery of oasis farmland","authors":"Chenchen He , Wenyan Shao","doi":"10.1016/j.jaridenv.2024.105165","DOIUrl":"https://doi.org/10.1016/j.jaridenv.2024.105165","url":null,"abstract":"<div><p>Dust storms, resulting from aeolian erosion, pose significant environmental hazards, while farmland is one of the main sources of dust storm release. An effective strategy to mitigate surface wind speed and curb dust emissions involves the establishment of windbreaks on the periphery of oasis farmland. This study conducts a series of numerical simulations using computational fluid dynamics (CFD) to explore the airflow fields around windbreaks with diverse systematic structural parameters, encompassing porosity, planting spacing, and fence effects. The main findings are as follows: (1) When the vegetation porosity is consistent (e.g., porosity <em>α</em> = 0.7, 0.8, and 0.9), exact geometry results can effectively reflect the distribution of wall shear stress, while the porous medium model overlooks these details. (2) The “Venturi effect” contributes to the acceleration of surface erosion and improper planting spacing results in an elevation of near-surface velocity. Planting spacing of 0.5 <em>m</em> demonstrates superior wind speed reduction performance, mitigating aeolian erosion and accumulation. (3) When the fence is positioned at <em>l</em> = 5<em>h</em> (<em>h</em> represents the height of the windbreaks), the flow field around the windbreaks is minimally influenced. The optimal placement distance for fences should be close to the windbreaks, featuring minimal porosity (<em>l</em> = 0 <em>h</em>, <em>α</em> = 0.1), extending the shelter distance from 3 to 4 <em>h</em> to 5–6 <em>h</em>. The research results can provide a theoretical basis for optimizing the plant configuration of biological desertification control and soil erosion control measures.</p></div>","PeriodicalId":51080,"journal":{"name":"Journal of Arid Environments","volume":"222 ","pages":"Article 105165"},"PeriodicalIF":2.7,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140632889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Everything's not lost: Caatinga areas under chronic disturbances still have well-preserved plant communities 并非一无所有：长期受干扰的卡廷加区仍有保存完好的植物群落

IF 2.7 3区环境科学与生态学

Journal of Arid Environments Pub Date : 2024-04-22 DOI: 10.1016/j.jaridenv.2024.105164

Maria Soraya Macêdo , Bruno Sousa Menezes , Marie Pierre Ledru , Jean-François Mas , Fernanda Kelly Gomes Silva , Carlos Eduardo Carvalho , Rafael Carvalho Costa , Roberta Boscaini Zandavalli , Arlete Aparecida Soares , Francisca Soares Araújo

{"title":"Everything's not lost: Caatinga areas under chronic disturbances still have well-preserved plant communities","authors":"Maria Soraya Macêdo , Bruno Sousa Menezes , Marie Pierre Ledru , Jean-François Mas , Fernanda Kelly Gomes Silva , Carlos Eduardo Carvalho , Rafael Carvalho Costa , Roberta Boscaini Zandavalli , Arlete Aparecida Soares , Francisca Soares Araújo","doi":"10.1016/j.jaridenv.2024.105164","DOIUrl":"https://doi.org/10.1016/j.jaridenv.2024.105164","url":null,"abstract":"<div><p>The caatinga, a thorny deciduous shrub-arboreal vegetation predominant in the semiarid Northeast Brazil region, has faced chronic anthropogenic disturbance since the arrival of Europeans. Areas experiencing strong anthropogenic pressure and climatic vulnerability are often overlooked in floristic and phytosociological studies, leading to limited knowledge about their biological potential. Thus, our objective was to assess the current vegetation state in three severely degraded nuclei undergoing desertification in Ceará and determine, based on the analysis of plant diversity (richness) and structure, if there is potential for natural regeneration. We sampled 36 plots (3.24 ha), measuring trees and shrubs with a diameter at ground level (DGL) ≥ 3 cm. The vegetation was stratified into three degradation levels: open, intermediate, and closed. The open level, most impacted by human activities, exhibited reduced plant richness, density, biomass, and height compared to other levels. In contrast, the intermediate and closed covers, prevalent in the study area, showed no significant differences from each other or from caatinga areas outside the desertification nuclei. We concluded that even severely degraded areas should possess high biological potential due to the presence of preserved remnants serving as reservoirs to maintain diversity and vegetation structure in the region.</p></div>","PeriodicalId":51080,"journal":{"name":"Journal of Arid Environments","volume":"222 ","pages":"Article 105164"},"PeriodicalIF":2.7,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140631654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Plants in the caatinga possess multiple adaptative leaf morphoanatomical traits concurrently, a pattern revealed from a systematic review 高原植物同时具有多种适应性叶片形态解剖特征，系统综述揭示了这一模式

IF 2.7 3区环境科学与生态学

Journal of Arid Environments Pub Date : 2024-04-18 DOI: 10.1016/j.jaridenv.2024.105162

Aryane do Nascimento Accioly , Rafael de Paiva Farias , Emília Cristina Pereira de Arruda

{"title":"Plants in the caatinga possess multiple adaptative leaf morphoanatomical traits concurrently, a pattern revealed from a systematic review","authors":"Aryane do Nascimento Accioly , Rafael de Paiva Farias , Emília Cristina Pereira de Arruda","doi":"10.1016/j.jaridenv.2024.105162","DOIUrl":"https://doi.org/10.1016/j.jaridenv.2024.105162","url":null,"abstract":"<div><p>Plants in seasonally dry forests, such as the Caatinga in Brazil, possess adaptive characteristics to endure prolonged periods of drought and intense sunlight. However, few studies have delved into understanding, as proposed here, the convergence of these traits based on morphoanatomical features. Therefore, based on a systematic review, we investigated the morphoanatomical traits of Caatinga plant's leaves in terms of their occurrence and frequency among species, as well as their combinations. This review encompasses data from 69 species distributed across 24 botanical families, with 13 species exclusive to the Caatinga. Through this review, we present the most common morphoanatomical leaf traits of Caatinga plants, discussing their functional significance in dry forests. Traits such as uniseriate epidermis, tector trichomes, amphistomatia, dorsiventral mesophyll and crystals were the most prevalent. Additionally, traits not typically described as advantageous for semi-arid regions, such as stomata at the same level and/or above common epidermal cells, were identified. Our review unveils the significant sharing of morphoanatomical leaf characteristics among Caatinga plants, with the observation of three clusters associated with these traits, composed of subshrub, shrub, arboreal and/or herbaceous species. The shared traits underscore the evolutionary association between traits and the environment. Finally, this comprehensive overview of these traits allows us to understand the dynamics of Caatinga plants and serves as a foundation for future analyses of the varying vulnerability of plants within each cluster to climate change.</p></div>","PeriodicalId":51080,"journal":{"name":"Journal of Arid Environments","volume":"222 ","pages":"Article 105162"},"PeriodicalIF":2.7,"publicationDate":"2024-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140619046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Open-cup nesters in the Kalahari: Incubation and egg-shading behaviour in passerines cannot be detected with temperature dataloggers during hot periods 卡拉哈里的开杯巢鸟：炎热时期的温度记录仪无法检测到雀形目鸟类的孵化和遮蛋行为

IF 2.7 3区环境科学与生态学

Journal of Arid Environments Pub Date : 2024-04-17 DOI: 10.1016/j.jaridenv.2024.105159

David Diez-Méndez , Susan J. Cunningham

{"title":"Open-cup nesters in the Kalahari: Incubation and egg-shading behaviour in passerines cannot be detected with temperature dataloggers during hot periods","authors":"David Diez-Méndez , Susan J. Cunningham","doi":"10.1016/j.jaridenv.2024.105159","DOIUrl":"https://doi.org/10.1016/j.jaridenv.2024.105159","url":null,"abstract":"<div><p>Birds that build open-cup nests in semi-arid or arid habitats have difficulty in maintaining clutch temperatures during incubation in a suitable incubation range due to high air temperatures and solar radiation, resulting in either embryo death or behavioural responses to preserve clutch viability. We investigated how Southern Fiscals (<em>Lanius collaris</em>), open-cup nesting passerines with female-only incubation in the Kalahari basin, allocated time for self-care (off-bouts) and incubation (on-bouts) and whether egg shading, a previously described behaviour in this species, is a widespread response during hot periods. We used a dual approach combining temperature dataloggers in the nest and behavioural observations during the hottest hours of the day. We found that in the early morning and late evening, Southern Fiscals behaved similarly to species incubating in temperate habitats by alternating off- and on-bouts, but during the hottest hours of the day, shading became the main activity. Behavioural observations were key to describing this behaviour indicating that it is necessary to combine different data collection strategies to successfully assess the behaviour of open-cup nesters in hot environments.</p></div>","PeriodicalId":51080,"journal":{"name":"Journal of Arid Environments","volume":"222 ","pages":"Article 105159"},"PeriodicalIF":2.7,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140605179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

First record of dermal fluorescence in the desert-adapted Stenodactylus and Trigonodactylus geckos 首次记录适应沙漠环境的石龙子和三足石龙子壁虎的真皮荧光

IF 2.7 3区环境科学与生态学

Journal of Arid Environments Pub Date : 2024-04-17 DOI: 10.1016/j.jaridenv.2024.105161

Bernat Burriel-Carranza , Adrián Talavera , Gabriel Mochales-Riaño , Sulaiman Al Hashmi , Ahmed Al Busaidi , Johannes Els , Salvador Carranza

{"title":"First record of dermal fluorescence in the desert-adapted Stenodactylus and Trigonodactylus geckos","authors":"Bernat Burriel-Carranza , Adrián Talavera , Gabriel Mochales-Riaño , Sulaiman Al Hashmi , Ahmed Al Busaidi , Johannes Els , Salvador Carranza","doi":"10.1016/j.jaridenv.2024.105161","DOIUrl":"https://doi.org/10.1016/j.jaridenv.2024.105161","url":null,"abstract":"<div><p>Even though steadily increasing, biofluorescence is a rarely documented phenomenon in vertebrates. Within geckos, only six species have been shown to produce fluorescence and only one case of dermal fluorescence has been reported. Here, we report on the discovery of dermal fluorescence in the Dune Sand Gecko (<em>Stenodactylus doriae</em>), the Eastern Sand Gecko (<em>S. leptocosymbotes</em>), and the Arabian Web-footed Sand Gecko (<em>Trigonodactylus arabicus</em>), three closely-related, nocturnal, desert-adapted Arabian geckos. We show that there are interspecific differences in fluorescent regions which might be linked to the habitat preference and behaviour of each species. Our results are in agreement with prior hypotheses suggesting that desert-adapted geckos might use dermal biofluorescence for conspecific signalling. With the present work, we expand the current knowledge on skin fluorescence in reptiles and provide new insights on fluorescence of desert-adapted geckos.</p></div>","PeriodicalId":51080,"journal":{"name":"Journal of Arid Environments","volume":"222 ","pages":"Article 105161"},"PeriodicalIF":2.7,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0140196324000417/pdfft?md5=acd8cf02efe57b43a2671c1f5891759b&pid=1-s2.0-S0140196324000417-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140605178","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analysis of surface radiation fluxes and environmental variables over Caatinga vegetation with different densities 不同密度的卡廷加植被表面辐射通量和环境变量分析

IF 2.7 3区环境科学与生态学

Journal of Arid Environments Pub Date : 2024-04-16 DOI: 10.1016/j.jaridenv.2024.105163

Delson J.F. Silva , Tarciana R.B.F. Silva , Michele L. de Oliveira , Gabriel de Oliveira , Manoranjan Mishra , Celso Augusto Guimarães Santos , Richarde Marques da Silva , Carlos A.C. dos Santos

{"title":"Analysis of surface radiation fluxes and environmental variables over Caatinga vegetation with different densities","authors":"Delson J.F. Silva , Tarciana R.B.F. Silva , Michele L. de Oliveira , Gabriel de Oliveira , Manoranjan Mishra , Celso Augusto Guimarães Santos , Richarde Marques da Silva , Carlos A.C. dos Santos","doi":"10.1016/j.jaridenv.2024.105163","DOIUrl":"https://doi.org/10.1016/j.jaridenv.2024.105163","url":null,"abstract":"<div><p>The Caatinga biome, characterized by its dynamic vegetation due to climate and land use changes, experiences varied environmental responses during the dry and rainy seasons. This research aims to dissect the complexity of surface radiation fluxes, vapor pressure, and air and soil temperatures across three distinct vegetation densities within the Caatinga: recovering, degraded, and preserved. Utilizing data from Moderate Resolution Imaging Spectroradiometer/Enhanced Vegetation Index products to analyze these densities offers a novel lens through which to view the biome's reaction to climatic shifts. Our findings unveiled specific patterns of solar and longwave radiation fluxes that correlate with key climatic variables like air temperature and surface albedo. This investigation not only addresses a critical gap in our knowledge of a globally significant but underexplored biome, but it also advances our comprehension of how vegetation density influences radiation fluxes in arid settings. Insights from this study are vital for forecasting and mitigating the ecological and climatic impacts of land cover transformations in semiarid regions worldwide. Significantly, the degraded site displayed nearly double the solar radiation reflection (138 Wm<sup>−2</sup>) compared to the recovering site (68 Wm<sup>−2</sup>), underscoring the role of vegetation density in modulating local climate conditions, despite atmospheric consistency across the study sites.</p></div>","PeriodicalId":51080,"journal":{"name":"Journal of Arid Environments","volume":"222 ","pages":"Article 105163"},"PeriodicalIF":2.7,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140558906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine learning and remote sensing based time series analysis for drought risk prediction in Borena Zone, Southwest Ethiopia 基于机器学习和遥感的时间序列分析，预测埃塞俄比亚西南部博雷纳区的干旱风险

IF 2.7 3区环境科学与生态学

Journal of Arid Environments Pub Date : 2024-04-11 DOI: 10.1016/j.jaridenv.2024.105160

Amanuel Kumsa Bojer , Bereket Hailu Biru , Ayad M. Fadhil Al-Quraishi , Taye Girma Debelee , Worku Gachena Negera , Firesew Feyiso Woldesillasie , Sintayehu Zekarias Esubalew

{"title":"Machine learning and remote sensing based time series analysis for drought risk prediction in Borena Zone, Southwest Ethiopia","authors":"Amanuel Kumsa Bojer , Bereket Hailu Biru , Ayad M. Fadhil Al-Quraishi , Taye Girma Debelee , Worku Gachena Negera , Firesew Feyiso Woldesillasie , Sintayehu Zekarias Esubalew","doi":"10.1016/j.jaridenv.2024.105160","DOIUrl":"https://doi.org/10.1016/j.jaridenv.2024.105160","url":null,"abstract":"<div><p>Drought, a complex natural hazard, poses significant challenges for scholars in drought risk management due to the perceived lack of suitable assessment, prediction, and monitoring tools. Addressing these challenges requires sophisticated tools capable of precise and timely assessments. This study leverages the rapid advancements in machine learning (ML) and remote sensing (RS) to develop models for anticipating and estimating drought risk, particularly focusing on identifying affected and sensitive locations in Ethiopia's Borena Zone. The research involves a two-phase investigation, examining historical drought patterns and forecasting scenarios for 2028. The GridSearch algorithm is employed for optimal hyperparameter tuning in ML, highlighting the CatBoost algorithm as the most accurate predictor for the Standardized Precipitation Index (SPI). With impressive performance metrics, including Mean Squared Error (MSE) of 0.017, Mean Absolute Error (MAE) of 0.102, Root Mean Square Error (RMSE) of 0.129, and an R-squared (R<sup>2</sup>) value of 0.84, this study excels in providing precise spatiotemporal accuracy for drought prediction. The findings underscore the importance of time-series drought prediction, offering crucial insights for decision-makers and planners to address and mitigate drought impacts at various scales. This study contributes valuable information by emphasizing the significance of understanding drought occurrence's temporal and spatial dimensions.</p></div>","PeriodicalId":51080,"journal":{"name":"Journal of Arid Environments","volume":"222 ","pages":"Article 105160"},"PeriodicalIF":2.7,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140547016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0