Journal of Arid Environments最新文献_第3页

Ecological restoration projects contributed to vegetation greening on the Qinghai-Tibet Plateau

IF 2.5 3区环境科学与生态学 Q2 ECOLOGY

Journal of Arid Environments

Pub Date : 2026-02-01 Epub Date: 2025-11-27 DOI: 10.1016/j.jaridenv.2025.105527

Yaoxuan Huang , Zegen Wang , Yanmei Yang , Zhiwei Yong , Yaxin Liu , Yingyang Wang , Junxin Zhao

Over the past two decades, China has implemented a series of ecological restoration projects (ERPs) on the Qinghai–Tibet Plateau; however, their contribution to vegetation recovery remains uncertain. To assess vegetation dynamics from 2000 to 2020, the spatiotemporal patterns of the Normalized Difference Vegetation Index (NDVI), Leaf Area Index (LAI), and Net Primary Productivity (NPP) were analyzed using trend analysis methods, while the partial derivative method was employed to quantify the contributions of ERPs and climate change (CC). The results indicate that 33.5 % of the vegetation experienced sustained recovery, with high-, medium-, and low-recovery areas covering 23.1 %, 48.5 %, and 10.8 % of the plateau, respectively. ERPs had overall positive effects, exceeding 60 % in most regions, particularly in central areas, and their impact on NPP was stronger than on NDVI or LAI. Vegetation recovery was driven by complex factors: CC dominated increases in NDVI and LAI, whereas the interaction between ERPs and CC had a stronger influence on NPP growth than either factor alone. Specifically, CC accounted for 65.4 %–71.1 % of vegetation greening, while ERPs contributed 28.9 %–34.6 %. These findings underscore the dominant role of CC and the complementary contribution of ERPs, providing valuable insights into vegetation recovery mechanisms and a theoretical basis for future ecological restoration on the Qinghai–Tibet Plateau.

为了评价2000 - 2020年植被动态，采用趋势分析方法分析了归一化植被指数（NDVI）、叶面积指数（LAI）和净初级生产力（NPP）的时空格局，并采用偏导数方法量化了ERPs和气候变化（CC）的贡献。结果表明：高原植被持续恢复的比例为33.5%，高、中、低恢复面积分别为23.1%、48.5%和10.8%。总体而言，erp对NPP的影响大于NDVI和LAI，在大部分地区（特别是中部地区）均超过60%。植被恢复受复杂因子的驱动，植被覆盖度在NDVI和LAI的增加中占主导地位，而植被覆盖度和植被覆盖度的交互作用对植被覆盖度增长的影响大于单独的任何一个因子。其中，CC占植被绿化的65.4% ~ 71.1%，erp占28.9% ~ 34.6%。

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引用次数: 0

Corrigendum to “Additive and substitutable prey responses to feral and native predator combinations” [J. Arid Environ. 229 (2025) 105399] “对野生和本地捕食者组合的可加性和可替代猎物反应”的勘误[J]。干旱环境，229 (2025)105399 [j]

IF 2.5 3区环境科学与生态学 Q2 ECOLOGY

Journal of Arid Environments

Pub Date : 2026-02-01 Epub Date: 2025-09-11 DOI: 10.1016/j.jaridenv.2025.105483

Justin R. Saint Juliana , S.S. Bleicher , S. Mukherjee , V. Sundararaj , J.S. Brown , B.P. Kotler

引用次数: 0

Identifying key factors for vegetation dynamics in arid China with multi-trajectory methods 基于多轨迹方法的中国干旱区植被动态关键因子识别

IF 2.5 3区环境科学与生态学 Q2 ECOLOGY

Journal of Arid Environments

Pub Date : 2026-02-01 Epub Date: 2026-01-21 DOI: 10.1016/j.jaridenv.2026.105552

Lina Xiu , Ruoyu Xia , Yong Lv , Jiahui Wang

Vegetation often exhibits complex dynamic trajectories under the influence of multiple external factors. In arid regions, fragile ecosystems and high climate sensitivity make vegetation more responsive to environmental fluctuations, resulting in inadequately captured dynamics by a single linear trend analysis. Therefore, this study employed a multi-trajectory model to characterize vegetation dynamics across China's arid region from 2000 to 2024, followed by a random forest analysis to identify the natural and anthropogenic drivers of different trajectory types. The results showed that: (1) Vegetation in the arid region exhibited an overall greening trend, with approximately 74 % of the area showing vegetation improvement, while only about 7 % experienced a decline. (2) Abrupt-change trajectories were the dominant vegetation evolution pattern, occupying 49 % of the region. Linear and curvilinear trajectories accounted for 17 % and 15 %, respectively, and 19 % of the area showed no significant trend. (3) The Random Forest analysis revealed that soil properties and increased annual precipitation were the most influential factors promoting positive trajectories, while urbanization and increased droughts negatively affected vegetation. This study provides a deeper understanding of vegetation dynamics and their drivers in arid regions and offers scientific support for regional ecological management and sustainable development.

在多种外部因素的影响下，植被往往表现出复杂的动态轨迹。在干旱地区，脆弱的生态系统和高度的气候敏感性使植被对环境波动的反应更大，导致单一线性趋势分析无法充分捕捉动态。为此，本研究采用多轨迹模型对2000 - 2024年中国干旱区植被动态特征进行了表征，并通过随机森林分析确定了不同轨迹类型的自然和人为驱动因素。结果表明：(1)干旱区植被总体呈现绿化趋势，约74%的区域植被有所改善，仅7%的区域植被有所下降；(2)突变型是主要的植被演化模式，占区域面积的49%。线性和曲线轨迹分别占17%和15%，19%的区域无显著趋势。(3)随机森林分析表明，土壤性质和年降水量的增加是促进植被正向变化的最重要因素，而城市化和干旱的增加对植被有负向影响。该研究为深入了解干旱区植被动态及其驱动因素提供了科学依据，为区域生态管理和可持续发展提供了科学依据。

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引用次数: 0

Melanism in scorpions, reptiles and rodents inhabiting the volcanic fields of north-western Saudi Arabia 居住在沙特阿拉伯西北部火山地带的蝎子、爬行动物和啮齿类动物的黑色素病

IF 2.5 3区环境科学与生态学 Q2 ECOLOGY

Journal of Arid Environments

Pub Date : 2026-02-01 Epub Date: 2026-01-05 DOI: 10.1016/j.jaridenv.2025.105548

Margareta Lakušić , Myrto Roumelioti , Fulvio Licata , Marcello Bilancioni , Diogo F. Ferreira , Leili Khalatbari , Vidak Lakušić , André Vicente Liz , Raquel N. de Oliveira , Bárbara Santos , Yuri Simone , László Patkó , Ayman Abdulkarem , Benjamin P.Y-H. Lee , Magdy El-Bana , Ahmed Al-Ansari , Omar Al-Attas , José Carlos Brito

Body colouration is involved in multiple aspects of species ecology and behaviour. Melanism, a common colour polymorphism, has been associated with camouflage and thermoregulation, particularly in diverse, high-altitude habitats of arid regions. This study reports the first case of melanism in the lacertid Acanthodactylus boskianus, two scorpions, Leiurus haenggii and Compsobuthus manzonii, and the first records of brown-black melanistic colouration in three rodent species, Acomys dimidiatus, Meriones crassus, and Sekeetamys calurus, in the dark lava fields (harrat) of north-western Saudi Arabia. Additionally, it expands observations of melanism in the endemic colubrid Rhynchocalamus hejazicus and provides the first documented records of brown-black melanistic Acomys russatus for the region, consistent with earlier predictions. These observations suggest that colour polymorphism may serve a cryptic function through background matching in both diurnal and nocturnal species, but other roles of melanism should be further investigated. Despite their extent, lava fields in arid regions remain poorly studied due to their remoteness and limited accessibility, yet they offer unique opportunities to investigate phenotypic evolution in arid ecosystems.

身体颜色涉及物种生态学和行为的多个方面。黑化是一种常见的颜色多态性，与伪装和体温调节有关，特别是在干旱地区的多种高海拔栖息地。本研究报道了在沙乌地阿拉伯西北部黑暗的熔岩地带（harrat）发现的第一个黑化的黑化现象，以及两种蝎子（Leiurus haenggii和Compsobuthus manzonii）和三种啮齿类动物（Acomys dimidiatus、Meriones crasssus和Sekeetamys calurus）的黑化现象。此外，它扩展了对特有的黑尺蠖（Rhynchocalamus hejazicus）的黑化现象的观察，并提供了该地区棕黑色黑化Acomys russatus的第一个有记载的记录，与早期的预测一致。这些观察结果表明，在白天和夜间活动的物种中，颜色多态性可能通过背景匹配发挥了一种隐藏功能，但黑化的其他作用有待进一步研究。尽管其范围广泛，但由于其偏远和可达性有限，干旱地区的熔岩田研究仍然很少，但它们为研究干旱生态系统的表型进化提供了独特的机会。

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引用次数: 0

The illusion of spectral greening: Unveiling the hidden transformation of agricultural land use in an arid peri-urban landscape of central Iran 光谱绿化的错觉：揭示伊朗中部干旱的城郊景观中农业用地的隐藏转变

IF 2.5 3区环境科学与生态学 Q2 ECOLOGY

Journal of Arid Environments

Pub Date : 2026-02-01 Epub Date: 2026-01-28 DOI: 10.1016/j.jaridenv.2026.105560

Ali Asgarian

This study investigates the paradox of landscape greening amidst agricultural output decline in a transforming arid agricultural region west of Isfahan, Iran (2009–2024). We tested the hypothesis that spectral greening masks a systemic shift from productive farming to non-productive land uses. Using a mixed-methods approach, we integrated official agricultural production statistics with Landsat-derived land cover classification and developed novel indices to quantify the decoupling between the Normalized Difference Vegetation Index (NDVI) and agricultural yield. Validation analyses confirmed that the indices were numerically stable and robust to uncertainty (coefficient of variation <4 %), while the NDVI–production elasticity (E = −1.83, p = 0.009) revealed a strong inverse coupling between greenness and productivity. Our results showed a marked divergence: mean NDVI increased by 16.3 % as total agricultural production declined by 23 % (−27,614 t), driven by a 32.5 % reduction in cropland area and a 121 % expansion of tree cover. The Productivity-per-NDVI index decreased from 139.1 to 100.9, underscoring a decline in economic output per unit of greenness. Together, these findings expose a spectral illusion of sustainability, where apparent greening signifies a structural transformation toward non-productive landscapes—underscoring the urgent need for agricultural monitoring systems that differentiate ecological vigor from economic viability.

本研究探讨了2009-2024年伊朗伊斯法罕西部转型干旱农业区农业产出下降中景观绿化的悖论。我们测试了光谱绿化掩盖了从生产性农业到非生产性土地利用的系统性转变的假设。采用混合方法，我们将官方农业生产统计数据与landsat衍生的土地覆盖分类相结合，并开发了新的指数来量化归一化植被指数（NDVI）与农业产量之间的脱钩。验证分析证实，这些指标在数值上是稳定的，并且对不确定性（变异系数<； 4%）具有鲁强性，而ndvi -生产弹性（E = - 1.83, p = 0.009）显示绿色度与生产力之间存在很强的反向耦合。我们的研究结果显示了明显的差异：由于耕地面积减少32.5%，树木覆盖面积增加121%，农业总产量下降23% (- 27,614 t)，平均NDVI增加16.3%。每ndvi生产力指数从139.1下降到100.9，这表明每单位绿化的经济产出有所下降。总之，这些发现揭示了可持续性的光谱错觉，其中明显的绿化意味着向非生产性景观的结构转变，强调了迫切需要区分生态活力和经济可行性的农业监测系统。

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引用次数: 0

Small rodent assemblage variation across a mountain gradient in an arid region of northwestern Argentina 阿根廷西北部干旱地区小啮齿动物群落在山区梯度上的变化

IF 2.5 3区环境科学与生态学 Q2 ECOLOGY

Journal of Arid Environments

Pub Date : 2026-02-01 Epub Date: 2025-12-16 DOI: 10.1016/j.jaridenv.2025.105544

Thamara Fariñas-Torres , Eliana F. Burgos , Maria A. Chemisquy

The province of La Rioja is one of the most neglected regarding the knowledge of its biological diversity, and particularly the study of the mammals in the Sierra de Velasco has been reduced to a few articles. This paper aims to study the richness and distribution of the small mammals of the Sierra de Velasco and the environmental factors that influence the assemblage in an environmental gradient. Samplings were made with Sherman-like traps for 9330 trap nights. For the analysis of assemblage variation, an environmental gradient was established based on several characteristics, and three types of environments were delimited: Ravines, Shrublands, and Rocky fields. Alpha and beta diversity were calculated using Hills numbers, and species richness correlation with environmental variables associations was evaluated. Small mammal species richness was up to seven and was higher in the shrublands environment decreasing towards the extremes of the gradient, with the lowest richness found in the rocky fields’ environment. The richness was mainly correlated to variations in the average elevation of the sampling sites. This is an initial approach to understanding the relationships between small rodent species and environmental variations present in the arid mountains of the Sierra de Velasco.

里奥哈省在生物多样性知识方面是最被忽视的省份之一，特别是对贝拉斯科山脉哺乳动物的研究已经减少到几篇文章。本文旨在研究贝拉斯科山小兽类的丰富度和分布，以及在一定的环境梯度下影响其组合的环境因素。用谢尔曼式陷阱对9330个陷阱夜进行取样。为分析组合变化，基于若干特征建立了环境梯度，划分了沟谷、灌丛和岩田3种环境类型。利用希尔斯数计算α和β多样性，并评价物种丰富度与环境变量的相关性。小哺乳动物物种丰富度在灌丛环境中最高，在梯度极值处呈递减趋势，在石质地环境中最低。丰富度主要与样点平均海拔的变化有关。这是理解小型啮齿动物物种与贝拉斯科山脉干旱山区环境变化之间关系的初步方法。

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引用次数: 0

Rediscovering desert ghosts: new records and range extensions of the sand cat and Saharan striped polecat in Libya 重新发现沙漠幽灵：利比亚沙猫和撒哈拉条纹狸的新记录和范围扩展

IF 2.5 3区环境科学与生态学 Q2 ECOLOGY

Journal of Arid Environments

Pub Date : 2026-02-01 Epub Date: 2025-09-25 DOI: 10.1016/j.jaridenv.2025.105485

Firas Hayder , Zimkitha J.K. Madikiza , Mohammed Saed Husayn Almuntasir , Ahmed Jomaa Sahbana , Abdullah Mokhtar Mabrok , Mohammed Sidi Hasan , Emmanuel Do Linh San

This study presents the first confirmed records of the sand cat (Felis margarita) in Libya, supported by multiple sightings documented through photographs and videos. Thirteen records were from the southwestern region, which may represent a key stronghold for the species in the country. Additionally, eight new records of the Saharan striped polecat (Poecilictis libyca) were documented across southwestern Libya, seven of which lie outside the current IUCN range for the species. These findings significantly expand the known distribution of both species and highlight a major knowledge gap. Reports of both species being sold in local markets further underscore the urgent need for targeted conservation efforts, public awareness and continued field surveys to better delineate the distribution limits of these small carnivores in Libya.

这项研究首次证实了利比亚的沙猫（Felis margarita），并通过照片和视频记录了多次目击。13条记录来自西南地区，这可能代表了该物种在该国的关键据点。此外，在利比亚西南部记录了8个撒哈拉条纹狸（Poecilictis libyca）的新记录，其中7个位于目前IUCN对该物种的保护范围之外。这些发现大大扩展了这两个物种的已知分布，并突出了一个主要的知识差距。关于这两个物种在当地市场被出售的报告进一步强调了迫切需要有针对性的保护工作，公众意识和持续的实地调查，以更好地划定这些小型食肉动物在利比亚的分布界限。

引用次数: 0

Inhibition or stimulation: effect of high temperature on the seed germination and vigor, and impacts on seedling growth of Sapindus saponaria L 抑制或刺激：高温对皂荚种子萌发和活力的影响及对幼苗生长的影响

IF 2.5 3区环境科学与生态学 Q2 ECOLOGY

Journal of Arid Environments

Pub Date : 2026-02-01 Epub Date: 2025-12-22 DOI: 10.1016/j.jaridenv.2025.105543

José Laurindo dos Santos Júnior , Guilherme Alcântara Matos , Elizamar Ciríaco da Silva

High temperature is a critical environmental factor that impacts seed bank persistence and limits recruitment, particularly hindering regeneration dynamics in arid and semi-arid ecosystems. Given global climate change, understanding how seeds respond to such conditions is crucial for ecosystem resilience and its capacity for natural regeneration. This study investigated how temporal exposure to high temperatures affects the germination and early growth of Sapindus saponaria L., a species found in the Caatinga ecosystem that contributes to seed bank formation. Seeds were exposed to high temperatures (70 °C) for 15, 45, 60, and 90 min, corresponding to the estimated soil surface temperatures and exposition times recorded during the peak solar irradiance period in semi-arid regions. Seed germination, seedling growth, and vigor were evaluated. Exposure of S. saponaria seeds to high temperatures for moderate durations (45 and 60 min) improved germination and seed vigor. Furthermore, seedlings exhibited greater vigor and vegetative growth. Moderate exposure to high temperatures may optimize germination and early seedling vigor in S. saponaria, potentially enhancing the recruitment of new individuals in warm environments.

高温是影响种子库持久性和限制种子补充的关键环境因素，特别是阻碍干旱和半干旱生态系统的更新动态。考虑到全球气候变化，了解种子如何应对这些条件对于生态系统的恢复力及其自然再生能力至关重要。摘要本研究研究了在Caatinga生态系统中发现的Sapindus saponaria L.对种子库形成的影响，研究了高温对Sapindus saponaria L.萌发和早期生长的影响。将种子暴露在高温（70°C）下15、45、60和90分钟，对应于半干旱区太阳辐照峰值期间土壤表面温度和暴露时间的估计。对种子萌发、幼苗生长和活力进行了评价。将皂角草种子在高温下适当暴露45和60分钟，提高了种子的萌发和活力。幼苗表现出更强的活力和营养生长。适度的高温暴露可以优化皂角草的萌发和早期幼苗活力，并有可能在温暖环境中促进新个体的招募。

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引用次数: 0

From structure to strategy: A remote sensing-based approach for sustainable use planning in Neltuma flexuosa DC. forests of Argentina's Monte 从结构到策略：一种基于遥感的方法用于柔叶树可持续利用规划。阿根廷蒙特山的森林

IF 2.5 3区环境科学与生态学 Q2 ECOLOGY

Journal of Arid Environments

Pub Date : 2026-02-01 Epub Date: 2025-10-09 DOI: 10.1016/j.jaridenv.2025.105497

Anabela Laudecina , Juan A. Alvarez , Bárbara Guida-Johnson , Laura M. Torres

Dry forests provide essential ecological functions and sustain local livelihoods, yet they are increasingly threatened by land use and climate change. Their sustainable management requires understanding the links between structure, function, and use. This study develops a framework to characterize Neltuma flexuosa woodlands and guide management strategies. Field surveys, multivariate analyses, and remote sensing were combined in the lower Tunuyán River basin (Monte ecoregion, Argentina). We identified three environments based on an object-based classification of Sentinel-2 images: Dense Woodland (DW), Open Woodland (OW), and Shrubland with Emergents (SwE) (overall accuracy 82 %). DW showed the highest tree and canopy cover, strong regeneration, and greater product availability, but also high stump density, reflecting both conservation value and use pressure. OW exhibited intermediate density and cover, high multifustality, and medium product availability, while SwE was dominated by shrubs, with low tree density and limited potential. Multitemporal SATVI (Soil-Adjusted Total Vegetation Index) analysis revealed that DW was directly linked to groundwater hydrology, whereas OW and SwE depended on rainfall and showed attenuated seasonal dynamics. Sentinel-2 imagery and classification algorithms enabled accurate mapping of the spatial distribution. The results support differentiated guidelines: protection in DW, low-intensity use in OW, and conservation of shrub cover in SwE. The framework provides scalable tools for adaptive strategies balancing biodiversity conservation and sustainable use in arid landscapes.

干林提供了重要的生态功能，维持着当地的生计，但它们日益受到土地利用和气候变化的威胁。它们的可持续管理需要理解结构、功能和使用之间的联系。本研究建立了一个框架来描述柔叶木香林地的特征，并指导管理策略。在Tunuyán河下游流域（阿根廷蒙特生态区）进行了实地调查、多元分析和遥感相结合的研究。基于Sentinel-2图像的目标分类，我们确定了三种环境：茂密林地（DW）、开阔林地（OW）和带突发性灌木（SwE）（总体精度为82%）。DW表现出最高的乔木和冠层盖度、较强的再生能力和较高的产品可利用性，但也表现出较高的残桩密度，反映了保护价值和利用压力。OW表现为中等密度和盖度、高多样性和中等产品可利用性，而SwE以灌木为主，乔木密度低，潜力有限。多时段SATVI （Soil-Adjusted Total Vegetation Index）分析表明，DW与地下水水文直接相关，而OW和SwE则依赖于降雨，且季节性动态减弱。Sentinel-2的图像和分类算法能够精确绘制空间分布。研究结果支持不同的指导方针：在低湿地中保护，在低湿地中低强度利用，在湿地中保护灌木覆盖。该框架为在干旱景观中平衡生物多样性保护和可持续利用的适应性战略提供了可扩展的工具。

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引用次数: 0

Biochar-mediated improvements in soil health in drylands: A bibliometric review of the potential and mechanisms for combating desertification and climate change 生物炭介导的旱地土壤健康改善：防治荒漠化和气候变化的潜力和机制的文献计量学综述

IF 2.5 3区环境科学与生态学 Q2 ECOLOGY

Journal of Arid Environments

Pub Date : 2026-02-01 Epub Date: 2025-09-24 DOI: 10.1016/j.jaridenv.2025.105490

Marina Pedroso Carneiro , Fernanda Palmeira Gabetto , Francielle Medeiros Costa , Viviana Meneghini , Juliet Emilia Santos de Sousa , Gonçalo Amarante Guimarães Pereira , Maurício Roberto Cherubin

Climate change has increased the vulnerability in dryland regions, which are more often facing challenges associated with water scarcity and low crop yields. In this context, sustainable soil management practices are a valuable tool to enhance the resilience of these areas as they can provide environmental benefits while ensuring fiber and food production. Among these practices, biochar use has gained recent attention due to its potential to enhance soil health; however, there is a lack of studies that synthesize the existing published data to guide future research. Therefore, we performed a bibliometric review to assess the current research status of soil health studies on biochar use in dryland soils. A total of 38 documents published between 2013 and 2024 were selected from the Web of Science and Scopus databases to be included in our analysis. Our results show that China leads in the number of publications, followed by Pakistan and Iran, which highlights the existence of research gaps in sub-Saharan Africa, Latin America, and parts of the Middle East and Europe. The most commonly evaluated properties in these studies to assess soil health were pH and phosphorus for chemical-associated parameters, and soil organic carbon and bulk density for biological and physical attributes, respectively. Physical parameters were the least commonly evaluated by the soil health studies with biochar application in drylands, despite their relevance. Research in the area highlights the overall potential of biochar to increase key parameters associated with land conservation in dry areas, such as nutrient availability, water retention, carbon sequestration, and crop productivity. However, research conducted on this matter remains limited and unevenly distributed. We recommend that future studies should address regional gaps and explore long-term effects under field conditions to enhance the current understanding of the benefits associated with biochar use in drylands.

气候变化增加了干旱地区的脆弱性，这些地区更经常面临与水资源短缺和作物产量低有关的挑战。在这种情况下，可持续土壤管理做法是加强这些地区恢复力的宝贵工具，因为它们可以在确保纤维和粮食生产的同时提供环境效益。在这些做法中，生物炭的使用因其具有增强土壤健康的潜力而最近受到关注；然而，缺乏综合现有已发表数据来指导未来研究的研究。因此，我们进行了文献计量学综述，以评估生物炭在旱地土壤中利用的土壤健康研究现状。我们从Web of Science和Scopus数据库中选择了2013年至2024年间发表的38篇文献纳入我们的分析。我们的研究结果显示，中国在发表论文数量上领先，其次是巴基斯坦和伊朗，这凸显了撒哈拉以南非洲、拉丁美洲以及中东和欧洲部分地区存在的研究差距。在这些评估土壤健康的研究中，最常评估的属性分别是pH和磷的化学相关参数，以及土壤有机碳和体积密度的生物和物理属性。在旱地应用生物炭的土壤健康研究中，尽管物理参数具有相关性，但它们最不常被评估。该领域的研究强调了生物炭在提高干旱地区与土地保护相关的关键参数方面的总体潜力，如养分有效性、保水能力、碳固存能力和作物生产力。然而，对这一问题的研究仍然有限且分布不均。我们建议未来的研究应该解决区域差距，并探索在野外条件下的长期影响，以加强目前对旱地使用生物炭的好处的理解。

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引用次数: 0