Watershed Ecology and the Environment最新文献

Quantitative evaluation of environmental and human health impacts in an Indonesian conservation region: A life cycle assessment (LCA) approach 印度尼西亚保护区环境和人类健康影响的定量评价：生命周期评估方法

Watershed Ecology and the Environment

Pub Date : 2026-01-01 Epub Date: 2025-11-02 DOI: 10.1016/j.wsee.2025.10.006

Novy Ariyanto , Anisah Anisah , Virny Zasyana Eka Putri , Yoyon Wahyono , Hashfi Hawali Abdul Matin , Isnaeni Kumalasari , Mutia Citrawati Lestari , Muhammad Raihan Farras Hakim , Anissa Dewi Suryaningtyas , Sundari Sundari , Nugroho Adi Sasongko , Martin Anda , Anggara Lomak Prihatin , Lambas Parlaungan Panggabean

Karimunjawa National Park (KNP) is an emerging tourism destination in Indonesia, where increasing tourism has led to excessive groundwater use and land subsidence. These issues pose environmental and health risks from emissions and seawater intrusion. This study examines the potential effects of these factors on the environment and human health within KNP. The research utilizes OpenLCA software 2.0.1 and the Ecoinvent 3.8 database, applying the CML-IA Baseline method for environmental impact assessment and the EPS 2015d method for human health impacts. The results show that the largest environmental impact is eutrophication, with the highest values recorded at spot 11 (6.94E-06 kg PO₄– eq). At spot 5, where copper (Cu) contamination reached the highest levels, the Authors observed the most significant ecotoxicity impacts, affecting freshwater (3.67E-06 kg 1,4-DB eq) ecosystems. Human health impacts, including intellectual disability (2.62E-10 Person-Years), and renal dysfunction (1.028E-13 case), were most significant at spot 5, linked to lead (Pb) contamination. The study suggests that reducing human activity in areas contributing to eutrophication and ecotoxicity, such as controlling nitrate and copper pollution, could mitigate environmental damage. Moreover, addressing human toxicity and health risks from lead requires improving waste management, ecosystem rehabilitation, pesticide reduction, and strengthening environmental monitoring. Public awareness of these risks is essential for effective mitigation.

Karimunjawa国家公园（KNP）是印度尼西亚一个新兴的旅游目的地，在那里，日益增长的旅游业导致了地下水的过度使用和地面沉降。这些问题造成了排放和海水入侵带来的环境和健康风险。本研究探讨了这些因素在国家公园内对环境和人类健康的潜在影响。本研究采用OpenLCA 2.0.1软件和Ecoinvent 3.8数据库，采用CML-IA Baseline方法进行环境影响评价，采用EPS 2015d方法进行人体健康影响评价。结果表明：水体富营养化对环境影响最大，11点水体富营养化程度最高（6.94E-06 kg PO4 - eq）；在5号地点，铜（Cu）污染达到最高水平，作者观察到最显著的生态毒性影响，影响淡水生态系统（3.67E-06 kg 1,4- db eq）。人类健康影响，包括智力残疾（2.62E-10人年）和肾功能障碍（1.028E-13例），在5号点最为显著，与铅（Pb）污染有关。该研究表明，在导致富营养化和生态毒性的地区减少人类活动，如控制硝酸盐和铜污染，可以减轻环境破坏。此外，解决铅对人体的毒性和健康风险需要改进废物管理、恢复生态系统、减少农药和加强环境监测。公众对这些风险的认识对于有效减轻风险至关重要。

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引用次数: 0

Soil microbial composition and vertical distribution patterns along the Liangshui River in Beijing, China 北京凉水河流域土壤微生物组成及垂直分布格局

Watershed Ecology and the Environment

Pub Date : 2026-01-01 Epub Date: 2025-12-19 DOI: 10.1016/j.wsee.2025.11.002

Yimeng Li, Ting Li, Guijun Liu, Lei Wang, Xin Tong, Manrong Huang

This study investigated the composition and vertical distribution of soil microbial communities in the vicinity of Liangshui River in Beijing. Soil samples (n = 18) were collected from depths of 0.1 m − 55 m, spanning three geological layers including artificial accumulation layer, recent sedimentary layer, and Quaternary sedimentary layer. These samples were analyzed using high-throughput sequencing to characterize bacterial and archaeal community composition. Results revealed that soil bacterial diversity and richness progressively decreased with increasing soil depth. Beta diversity analysis revealed that soil bacterial communities exhibited significant differences in composition across all three geological layers, whereas significant differences in soil archaeal communities were observed only between the artificial accumulation layer and the other two layers. At the taxonomic level, the dominant bacterial phyla in the soil were primarily Proteobacteria, Firmicutes, and Actinobacteria, with Bacillus being the predominant genus, while Crenarchaeota and Thermoplasmatota dominated the archaeal communities. PICRUSt2 functional prediction revealed that the soil bacterial communities were predominantly associated with carbohydrate metabolism, amino acid metabolism, and energy metabolism, among other functional pathways. Correlation network shows that Povalibacter, Pedomicrobium, and Bauldia may be keystone taxa in Beijing’s urban soils. This study not only elucidates the vertical distribution patterns of soil microbial communities along the Liangshui River, but also provides critical references for soil utilization and amendment strategies in Beijing.

对北京凉水河流域土壤微生物群落组成及垂直分布进行了研究。土壤样品（n = 18）采集深度为0.1 m ~ 55 m，跨越人工堆积层、近代沉积层和第四纪沉积层3个地质层。利用高通量测序对这些样品进行分析，以表征细菌和古细菌的群落组成。结果表明，随着土壤深度的增加，土壤细菌多样性和丰富度逐渐降低。β多样性分析表明，3个地质层土壤细菌群落组成存在显著差异，而土壤古细菌群落仅在人工堆积层与其他2个地质层之间存在显著差异。在分类学水平上，土壤中优势菌门主要为变形菌门、厚壁菌门和放线菌门，其中芽孢杆菌属为优势属，绿原菌门和热原菌门为优势古菌群。PICRUSt2功能预测表明，土壤细菌群落主要与碳水化合物代谢、氨基酸代谢和能量代谢等功能途径相关。相关性网络表明，Povalibacter、Pedomicrobium和Bauldia可能是北京城市土壤的关键分类群。该研究不仅阐明了凉水河流域土壤微生物群落的垂直分布格局，而且为北京市土壤资源利用和改良策略提供了重要参考。

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引用次数: 0

Plant species diversity and composition in Kanyabaha wetland in Rukiga District, Uganda 乌干达Rukiga地区Kanyabaha湿地植物物种多样性和组成

Watershed Ecology and the Environment

Pub Date : 2026-01-01 Epub Date: 2025-10-27 DOI: 10.1016/j.wsee.2025.10.003

Paul Walakira , Cecilia Gichuki , John Muriuki , Ezekiel Ndunda , Peter B. Olanya , Pantaleon M.B. Kasoma

Wetlands are ecologically and socioeconomically vital ecosystems, yet they remain highly vulnerable to human-induced disturbances. This study assessed plant species composition, diversity, and ecological dominance within Kanyabaha Wetland in Uganda to generate baseline ecological data that can inform sustainable management. Standard vegetation survey techniques and ecological indices, including Shannon-Wiener, Simpson’s Diversity, and Importance Value Index (IVI), were employed across sites with varying disturbance levels. A total of 31 plant species belonging to 19 families were recorded, with notable variation in species richness and composition across sites. Less disturbed areas (e.g., Rutenje and Burime) exhibited higher native species richness and stronger ecological integrity, while highly disturbed sites like Kandago were dominated by introduced species, particularly Eucalyptus spp. Interestingly, Kandago recorded the highest diversity indices, suggesting that while disturbance may increase species evenness, it compromises ecological balance. The dominance of few species in disturbed areas indicated a shift in vegetation structure, potentially disrupting ecosystem functionality. To address these issues, the study recommends targeted conservation measures, such as the removal or control of invasive species, promotion of native species regeneration, and community-led restoration initiatives. These findings are crucial for wetland managers, conservation agencies, and policy-makers, offering a scientific basis for prioritizing conservation areas and designing context-specific management interventions. The study contributes to the broader understanding of plant community responses to disturbance, supporting ongoing ecological monitoring and evidence-based restoration planning.

湿地是生态和社会经济上至关重要的生态系统，但它们仍然极易受到人为干扰。本研究评估了乌干达Kanyabaha湿地的植物物种组成、多样性和生态优势，以生成基线生态数据，为可持续管理提供信息。采用Shannon-Wiener、Simpson’s Diversity和重要性值指数（IVI）等标准植被调查技术和生态指数对不同干扰程度的样地进行调查。共记录到植物种类31种，隶属于19科，各样点物种丰富度和组成差异显著。受干扰程度较低的地区（如Rutenje和Burime）表现出较高的本地物种丰富度和较强的生态完整性，而受干扰程度较高的地区（如Kandago）则以引进物种为主，尤其是桉树。有趣的是，Kandago的多样性指数最高，表明干扰在增加物种均匀性的同时也损害了生态平衡。受干扰地区少数物种的优势表明植被结构的转变，可能会破坏生态系统的功能。为了解决这些问题，该研究建议采取有针对性的保护措施，例如清除或控制入侵物种，促进本地物种的再生，以及社区主导的恢复计划。这些发现对湿地管理者、保护机构和政策制定者至关重要，为确定保护区的优先次序和设计具体的管理干预措施提供了科学依据。该研究有助于更广泛地了解植物群落对干扰的响应，为持续的生态监测和基于证据的恢复规划提供支持。

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引用次数: 0

Biodegradation of ciprofloxacin by Exiguobacterium sp. from tropical river sediments: an integrated approach 热带河流沉积物中环丙沙星的生物降解：一种综合方法

Watershed Ecology and the Environment

Pub Date : 2026-01-01 Epub Date: 2025-11-18 DOI: 10.1016/j.wsee.2025.11.001

Irina Salgado-Bernal , Gabriela Cejas-Añón , Alen Nils Baeza-Fonte , Armando Martínez-Sardiña , María E. Carballo-Valdés , Periyasamy Sivalingam , John Poté

Ciprofloxacin (CIP) is a widely used broad-spectrum antibiotic. Its persistence and hydrophobic nature pose environmental risks to aquatic ecosystems. There is a lack of studies on the isolation and characterization of antibiotic-degrading microorganisms, especially in tropical ecosystems; although bacterial resistance to antibiotics in aquatic systems have been extensively studied. This study introduces a comprehensive methodological approach to evaluate the biodegradation potential of autochthonous bacteria, specifically Exiguobacterium sp. (T-316), isolated from the sediments of the Almendares River in Havana. The methodology integrates three key stages: (1) assessment of antibiotic resistance profiles, including the determination of minimum inhibitory concentration (MIC) for CIP, (2) evaluation of biodegradation capacity, and (3) measurement of residual antibiotic activity in post-treated water. Exiguobacterium sp. strain displayed a ciprofloxacin MIC of 7 µg mL⁻¹, indicating resistance. Biodegradation assays demonstrated this strain degraded 74.36 % of CIP in model water systems through co-metabolism (biodegradation of CIP using a co-substrate for metabolic support), with significant differences in the presence of a co-substrate. The final CIP concentration in effluents was significantly lower than the initial concentration. Notably, transformation products were detected after 72 h, regardless of glucose supplementation. The residual antibiotic activity in water treated under co-metabolic conditions showed a complete (100 %) reduction. This framework provides a robust and reproducible strategy for identifying and characterizing environmental bacterial strains with antibiotic degradation potential, especially relevant to underrepresented tropical ecosystems, despite their high microbial diversity. This study supports the development of sustainable processes for treating antibiotic-contaminated water, and is the first comprehensive report on CIP biodegradation in Cuba.

环丙沙星（CIP）是一种应用广泛的广谱抗生素。它的持久性和疏水性对水生生态系统构成了环境风险。缺乏对抗生素降解微生物的分离和特性的研究，特别是在热带生态系统中；尽管水生系统中细菌对抗生素的耐药性已被广泛研究。本研究介绍了一种综合的方法来评估从哈瓦那Almendares河沉积物中分离的原生细菌，特别是Exiguobacterium sp. （T-316）的生物降解潜力。该方法整合了三个关键阶段：(1)抗生素耐药性评估，包括确定CIP的最低抑制浓度（MIC）；(2)生物降解能力评估；(3)测量处理后水中残留的抗生素活性。Exiguobacterium sp.菌株环丙沙星MIC为7µg mL−1，表明耐药。生物降解实验表明，该菌株通过共代谢（利用共底物作为代谢支持的CIP生物降解）在模型水系统中降解了74.36%的CIP，其中共底物的存在存在显著差异。最终出水中CIP浓度显著低于初始浓度。值得注意的是，无论是否补充葡萄糖，72 h后都能检测到转化产物。在共代谢条件下处理的水中残留抗生素活性显示完全（100%）降低。该框架为识别和表征具有抗生素降解潜力的环境细菌菌株提供了一个强大且可重复的策略，特别是与代表性不足的热带生态系统相关，尽管它们的微生物多样性很高。这项研究支持可持续发展的过程，以处理抗生素污染的水，是第一个全面的报告，在古巴的CIP生物降解。

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引用次数: 0

Impact of solvent-free ball milling on sulfur dissolution in groundwater simulants 无溶剂球磨对模拟地下水中硫溶解的影响

Watershed Ecology and the Environment

Pub Date : 2026-01-01 Epub Date: 2025-07-18 DOI: 10.1016/j.wsee.2025.05.002

Ahmed Said , Mariama Assoumani , Mamie Ahmed Matoir , Thabiti Soudjay Kamal , Hamidou Hamada Soule , Qiwu Zhang , Mouayadi Said Ali Madi , Abacar Chakira , Zaïnati Ibrahim

Sulfur, the fifteenth most abundant element in the Earth’s crust, was activated through solvent-free ball milling to investigate its dissolution behavior and environmental implications. This study evaluated the influence of grinding conditions on sulfur’s phase transformation and solubility in different solvents. X-ray diffraction (XRD) analysis revealed a significant phase transition to the monoclinic β-sulfur phase (S-β) at a grinding speed of 500 rpm. Remarkably, sulfur solubility reached 807 ppm in water, compared to only 18.6 ppm in an acidic medium, underscoring the importance of solvent chemistry. Additionally, the activated sulfur exhibited self-photocatalytic activity, generating highly reactive oxidizing species crucial for the degradation of Methyl Orange (MO) dye, highlighting its potential for wastewater treatment. Advanced characterization techniques such as scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FT-IR) provided insights into the dissolution mechanisms. This study demonstrates the transformative potential of mechanically activated sulfur in environmental remediation and lays the foundation for future research on sustainable water treatment solutions.

硫是地壳中第15丰富的元素，通过无溶剂球磨活化，研究其溶解行为和环境影响。研究了不同研磨条件对硫在不同溶剂中的相变和溶解度的影响。x射线衍射（XRD）分析表明，在转速为500 rpm时，晶型明显转变为单斜晶型β-硫相（S-β）。值得注意的是，硫在水中的溶解度达到了807 ppm，而在酸性介质中只有18.6 ppm，这突出了溶剂化学的重要性。此外，活性硫表现出自光催化活性，产生对甲基橙（MO）染料降解至关重要的高活性氧化物质，突出了其在废水处理中的潜力。先进的表征技术，如扫描电子显微镜（SEM）和傅里叶变换红外光谱（FT-IR）提供了深入了解溶解机制。该研究展示了机械活化硫在环境修复中的转化潜力，为未来可持续水处理解决方案的研究奠定了基础。

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引用次数: 0

Exploration for the model of three-dimensional layered confirmation of sea area rights based on the concept of intensive sea use 基于集约利用理念的海域权立体分层确权模式探索

Watershed Ecology and the Environment

Pub Date : 2026-01-01 Epub Date: 2025-11-22 DOI: 10.1016/j.wsee.2025.10.005

Yang Zheng , Pei Liu , Gang Wang , Chengfen Xu , Dan Kong , Xiujuan Mu

With the increasing demand for the development and utilization of Marine space, the usage of sea area in three-dimensional style has become a powerful means to alleviate the contradiction of sea use and enhance the value of sea area resources. According to the structure characteristics of the sea space, the sea space is divided into four layers: above sea level space (D1), seawater space (D2), Quaternary sedimentary layer space (D3) and bedrock layer space (D4). Based on the summary of the types of available resources for each layer, the paper discusses the confirmable right to use the sea and the compatibility for different layers. From the Angle of intensive, efficient and green sea use, four typical three-dimensional development modes of sea area are put forward. In view of the contradiction between the existing management system and the usage of sea area in three-dimensional style, the optimization suggestions for usage of sea area in three-dimensional style are put forward from the aspects of compatibility assessment system, coordination and compatibility of layered right in sea area, and three-dimensional property right system.

随着人们对海洋空间开发利用需求的不断增加，海域立体利用已成为缓解海域利用矛盾、提升海域资源价值的有力手段。根据海空间的构造特征，将海空间划分为4层：海平面以上空间（D1）、海水空间（D2）、第四纪沉积层空间（D3）和基岩层空间（D4）。在总结各层可利用资源类型的基础上，探讨了可确认的海洋使用权和不同层间的兼容性。从集约利用、高效利用和绿色利用的角度，提出了四种典型的海域立体开发模式。针对现有管理体制与海域立体使用之间存在的矛盾，从兼容性评价制度、海域分层权利协调兼容、立体产权制度等方面提出了对海域立体使用的优化建议。

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引用次数: 0

Assessing land-use and land cover change in peri-urban wetland in Tembisa, South Africa 南非Tembisa城市边缘湿地土地利用和土地覆盖变化评估

Watershed Ecology and the Environment

Pub Date : 2026-01-01 Epub Date: 2025-10-17 DOI: 10.1016/j.wsee.2025.10.001

Janet Maluleke, Ndidzulafhi Innocent Sinthumule

Wetlands provide diverse ecosystem services but are increasingly degraded due to anthropogenic activities. Poor management has made wetlands to undergone significant change because of various anthropogenic activities. This study aimed at investigating the impacts of land use land cover changes (LULCC) over 32 years (1990–2022) in the condition and status of a peri-urban wetland in Tembisa, Gauteng province in South Africa. To achieve the aim of the study, various Landsat TM 4–5, SPOT 5 and 6, and Sentinel 2A were processed in ArcGIS Pro to assess, map and monitor the extent of LULCC in Kaalspruit wetland. A multi-source satellite image analysis was performed using a Maximum Likelihood classification algorithm in supervised classification to provide a quantitative assessment and a detailed overview of the rate of change. The result showed that built-up areas and bare land increased by 255.37 ha and 22.32 ha, respectively, while cultivated land, vegetation, and water bodies decreased by 111.33 ha, 144.42 ha, and 20.78 ha, respectively. Such changes show significant human interventions such as expansion of infrastructural development, pollution and cultivation because of increased population pressure. Interventions should be made for the rehabilitation and sustainable management of wetlands in the peri-urban areas of Tembisa.

湿地提供多种生态系统服务，但由于人为活动，湿地的退化日益严重。管理不善使湿地因各种人为活动而发生重大变化。以南非豪登省Tembisa为研究对象，研究了1990-2022年32年土地利用/土地覆盖变化（LULCC）对城市边缘湿地的影响。为实现研究目的，利用ArcGIS Pro软件对Landsat TM 4-5、spot5和spot6以及Sentinel 2A进行处理，对Kaalspruit湿地的LULCC程度进行评估、制图和监测。使用监督分类中的最大似然分类算法对多源卫星图像进行分析，以提供定量评估和变化率的详细概述。结果表明：建成区和裸地面积分别增加了255.37 ha和22.32 ha，耕地、植被和水体面积分别减少了111.33 ha、144.42 ha和20.78 ha。这些变化显示出重大的人为干预，如基础设施发展的扩大、人口压力增加造成的污染和耕种。应采取干预措施，恢复和可持续地管理坦比萨城郊地区的湿地。

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引用次数: 0

Sub-diurnal (daytime) and vertical profile variations of the physicochemical characteristics of Lake Rukwa: Implications for ecological state 鲁克瓦湖理化特征的亚日（白天）和垂直剖面变化：对生态状态的影响

Watershed Ecology and the Environment

Pub Date : 2026-01-01 Epub Date: 2025-12-14 DOI: 10.1016/j.wsee.2025.12.001

Azaria Stephano Lameck , Brian Rotich , Phenson Nsima Justine , Melkizedeck Tsere

This study investigates the daytime and vertical variations in the physicochemical properties of Lake Rukwa and their implications for the lake’s ecological status. In this study, field measurements included pH, temperature, dissolved oxygen (DO), oxygen saturation (O2 (%)), electrical conductivity (EC), salinity, total dissolved solids (TDS), and turbidity. Additionally, TP and Chlorophyll-a (Chl-a) concentrations were analyzed. The trophic status of the lake was evaluated using the Carlson Trophic State Index (CTSI). The study revealed that the lake had low water clarity (0.42 ft), indicating high suspended particle loads that limit light penetration, reduce photosynthesis, and lower DO concentrations. Chl-a significantly declined sharply with depth (P < 0.05), reflecting higher surface photosynthetic activity. Both pH and DO exhibit notable variations with depth and time of day (P < 0.05), while O2 (%) also showed a strong vertical variation. CTSI values ranged from 82.49 to 89.9, classifying the lake as hypereutrophic and highlighting severe ecological stress. These conditions are likely driven by nutrient enrichment from agricultural runoff and land-use change within the lake basin. To mitigate further degradation, management interventions, continuous monitoring, and stricter regulation of anthropogenic inputs are urgently required.

本研究探讨了鲁克瓦湖理化性质的日间和垂直变化及其对湖泊生态状况的影响。在本研究中，现场测量包括pH、温度、溶解氧（DO）、氧饱和度（O2(%)）、电导率（EC）、盐度、总溶解固体（TDS）和浊度。此外，还分析了TP和叶绿素a （Chl-a）浓度。采用卡尔森营养状态指数（Carlson trophic State Index， CTSI）对湖泊的营养状况进行了评价。研究表明，该湖的水清澈度较低（0.42英尺），表明高悬浮颗粒负荷限制了光的穿透，减少了光合作用，降低了DO浓度。Chl-a随深度急剧下降（P < 0.05），反映出较高的表面光合活性。pH和DO随深度和时间的变化显著（P < 0.05）， O2（%）也表现出较强的垂直变化。CTSI值在82.49 ~ 89.9之间，属于富营养化湖泊，生态压力严重。这些情况可能是由湖盆内农业径流和土地利用变化带来的养分富集所驱动的。为了减轻进一步退化，迫切需要管理干预、持续监测和更严格地管制人为投入。

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引用次数: 0

A bibliometric and systematic assessment of land use/cover change research on freshwater catchments: Trends from the past decade (2014–2024) 淡水流域土地利用/覆被变化研究的文献计量与系统评价：近十年趋势（2014-2024）

Watershed Ecology and the Environment

Pub Date : 2026-01-01 Epub Date: 2025-12-02 DOI: 10.1016/j.wsee.2025.11.003

Célestin Havyarimana , Suranto Suranto , Tatien Masharabu , Agung Hidayat

Freshwater catchments are integral to the Earth’s hydrological and ecological networks, supporting biodiversity and delivering critical ecosystem goods and services. However, these systems face escalating anthropogenic pressures, particularly from land use and cover changes, which threaten their structural integrity and functional capacity. Despite increasing scientific interest, a global body of research that captures long-term trends specific to freshwater systems remains limited. To address this, a bibliometric-systematic literature review was conducted with 688 peer-reviewed articles from Scopus and Web of Science, published between 2014 and 2024. The study revealed an average annual growth rate of 9.72 % in publications, with China contributing 42.3 % and the United States contributing 10.8 % to the total research output. Three dominant research themes were identified: land use–water quality interactions, climate change–hydrological responses, and urbanization–ecosystem service trade-offs. A methodological evolution was also noted, shifting from descriptive studies towards advanced predictive modeling. International collaborations accounted for 16.13 %, yet significant geographical disparities persist, with the Global South remaining underrepresented. This study highlights the need to expand research in underrepresented regions, promote standardized assessment protocols for better comparability, and advance interdisciplinary approaches that integrate ecological and social dimensions. Incorporating emerging techniques, such as machine learning, is also recommended to enhance methodological innovation. These findings offer a strong evidence base to support future research and policies for sustainable freshwater catchment management amidst the growing environmental challenges.

淡水集水区是地球水文和生态网络的组成部分，支持生物多样性并提供关键的生态系统产品和服务。然而，这些系统面临着不断升级的人为压力，特别是来自土地利用和覆盖变化的压力，这威胁到它们的结构完整性和功能能力。尽管科学兴趣日益浓厚，但能够捕捉淡水系统特定长期趋势的全球研究机构仍然有限。为了解决这个问题，我们对2014年至2024年间发表的来自Scopus和Web of Science的688篇同行评议文章进行了文献计量学系统文献综述。该研究显示，出版物的平均年增长率为9.72%，其中中国贡献42.3%，美国贡献10.8%。确定了三个主要研究主题：土地利用-水质相互作用、气候变化-水文响应和城市化-生态系统服务权衡。还注意到方法论的演变，从描述性研究转向先进的预测建模。国际合作占16.13%，但显著的地理差异仍然存在，全球南方的代表性仍然不足。本研究强调有必要扩大代表性不足地区的研究，促进标准化评估协议以提高可比性，并推进整合生态和社会维度的跨学科方法。还建议结合新兴技术，如机器学习，以加强方法创新。这些发现为在日益严峻的环境挑战中支持未来可持续淡水集水区管理的研究和政策提供了强有力的证据基础。

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引用次数: 0

GIS and remote sensing based spatial analysis of dominant RUSLE factors and the corresponding influence on soil loss in Werie Agricultural Landscape: An agro-ecological approach 基于GIS和遥感的渭河流域农业景观RUSLE优势因子及其对土壤流失的影响

Watershed Ecology and the Environment

Pub Date : 2026-01-01 Epub Date: 2026-02-12 DOI: 10.1016/j.wsee.2026.01.001

Abrha Asefa , Mitiku Haile , Melaku Berhe , Amanuel Zenebe

This study quantified the dominant soil erosion factors across in Werie Watershed. The study employed the Revised Universal Soil Loss Equation and Geographic Information System framework, and individual RUSLE factor were normalized. Zonal statistics were then applied to quantify area dominance across Agro-Ecological Zones. Finding revealed that mean soil loss was highest in Kolla at 22.83ton/ha/year, significantly exceeding Weina Dega (8.77 ton/ha/year) and Dega (7.64 ton/ha/year). Spatially, Rainfall Erosivity (R-factor) dominated the largest areas, covering 228.96 km² in Kolla (57.89%) and 1874.61 km² in Weina Dega (40.50%). Cover-Management (C-factor) was also dominating 161.77 km² in Kolla (40.90%) and 1410.73 km² in Weina Dega (30.48%). In Dega, Soil Erodibility (K-factor) was most prominent, dominating 143.30 km² (41.45%), while R-factor dominated 128.59 km² (37.19%). The Slope Length-Gradient (LS-factor) exhibited minimal areal dominance, covering 0.005 km² across all AEZs. However, the P-factor was not identified as a dominant factor in the watershed. Average normalized R-factor values were consistently high across all AEZs, ranging from 0.52 to 0.64. In contrast, K-factor averages remained very low ranging from 0.001 to 0.003. This study quantified the varying influences of erosion factors across AEZs and provided data-driven insights for designing tailored soil conservation strategies in Werie Watershed.

本研究量化了Werie流域的主要土壤侵蚀因子。研究采用修订的通用水土流失方程和地理信息系统框架，并对个别RUSLE因子进行归一化处理。然后应用区域统计量化农业生态区的区域优势。结果表明，库拉地区平均土壤流失量最高，为22.83吨/公顷/年，显著高于魏纳德加（8.77吨/公顷/年）和德加（7.64吨/公顷/年）。从空间上看，降雨侵蚀力（r因子）占主导地位最大，分别为科拉228.96 km2（57.89%）和魏纳德加1874.61 km2（40.50%）。覆盖管理（c因子）在科拉161.77 km2（40.90%）和韦纳德加1410.73 km2（30.48%）中占主导地位。德加省土壤可蚀性（k因子）最显著，占143.30 km2 (41.45%)， r因子占128.59 km2（37.19%）。坡长梯度因子（LS-factor）的面积优势最小，覆盖面积为0.005 km2。然而，p因子并未被确定为该流域的主导因子。所有aez的平均归一化r因子值一直很高，范围在0.52至0.64之间。相比之下，k因子平均值仍然非常低，范围从0.001到0.003。本研究量化了各经济特区侵蚀因子的不同影响，为Werie流域土壤保持策略的设计提供了数据驱动的见解。

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