Search Results (38)

The increasing impacts of climate change and drought have made water-efficient management of urban green spaces a critical issue in semi-arid cities. This study evaluates the water-saving potential of xeriscape landscape design principles in two major recreational areas in Ankara, Türkiye: Batıkent and Bademlidere. In the first stage, existing planting designs were inventoried, and annual crop water consumption was calculated using the Penman–Monteith method and species-specific crop coefficients (Kc). In the second stage, xeriscape-based alternatives composed of lower-water-use species were developed and compared with the existing designs. The results showed that total annual water consumption was 90,591 m³ for Bademlidere and 185,566 m³ for Batıkent. For Batıkent, the proposed xeriscape design reduced annual demand to 82,835 m³, corresponding to a saving of 102,731 m³ (55.4%), or approximately the annual domestic water use of 600 households. Notably, clover groundcover, which is often promoted as a lawn alternative, was calculated to consume more water per square meter (1.31 m³ m⁻² yr⁻¹) than turfgrass (1.14 m³ m⁻² yr⁻¹) when a green appearance was maintained. These findings show that xeriscaping can substantially reduce irrigation demand in semi-arid urban landscapes; however, the water-saving performance of turf alternatives depends strongly on species composition, planting density, and site-specific management. Full article

Urban drought pressure is increasing the operational risk and cost of maintaining municipal green infrastructure. Irrigation is still widely managed through fixed routines and fragmented information. To address this challenge, the study develops an integrated operational analysis by combining water consumption records, maintenance data and a GIS inventory for twenty municipal green spaces. System characterisation and performance screening were carried out using hourly meter readings to distinguish typical scheduled irrigation peaks from non-standard consumption patterns. To move from monitoring to control, irrigation needs were estimated using evapotranspiration (ET₀) and a garden-coefficient logic adapted to urban planting conditions and compared with measured consumption. The comparison indicates a potential reduction of 29–61% through improved scheduling and system adjustment. Based on the diagnosis, technical intervention scenarios were defined and assessed using techno-economic metrics, including ground-cover redesign and Mediterranean-adapted planting strategies. To support implementation, options were organised into intervention priorities using a multicriteria tool that balances water savings, costs and feasibility under municipal operations. Coimbra, Portugal is used as a case study, and a pilot application in a city garden, supported by 797 user surveys, clarifies practical constraints for scaling beyond isolated pilots. Turf-free scenarios indicate a 53.4% reduction in water use and a 60.5% reduction in operational costs, with a payback period below three years. The results highlight the potential of data-driven irrigation management to support more resilient, cost-effective and water-efficient municipal green infrastructure across diverse urban contexts. Full article

Cover crops in woody crops as a sustainable land management alternative to conventional tillage induce changes in soil properties that improve ecosystem functioning. Soil is highly dynamic, and disturbances in environmental conditions affect soil microorganisms, particularly in gypsiferous soils, where microbiological activity remains poorly understood. This study evaluated the effects of three cover crop systems: spontaneous permanent vegetation cover (SVE), annual legume cover (VIC), and permanent grass cover (BRA), compared with conventional tillage (TIL), on soil physicochemical and biological properties in an olive grove over two crop seasons. Overall, cover crops promoted higher microbial activity and carbon storage than tillage, with responses being more pronounced during the wetter year. Conventional tillage consistently exhibited the lowest levels of enzyme activities and carbon stocks, whereas permanent covers showed stronger positive effects on soil functioning. These findings indicate that the benefits of cover crops on soil processes are reinforced under favorable moisture conditions but also remain under drier years, highlighting their stabilizing role. The improvement of soil health induced by cover crops contributes to enhancing soil ecosystem services, including soil fertility, in olive groves, supporting their adoption as a sustainable management strategy in Mediterranean agroecosystems, even under lower rainfall conditions. Full article

Urban railway corridors—including abandoned, redesigned, and in-use lines—can support biodiversity and ecological connectivity in fragmented cities, yet their ecological dynamics and roles in Nature-based Solutions (NbS) remain poorly understood. Addressing this requires a context-sensitive approach that differentiates corridor types and compares their ecological functions. This study compares vegetation dynamics along railway corridors in two cities with contrasting socio-ecological contexts—Perth (Western Australia) and Beijing (China)—using a typology-based comparative approach. The results show that: (1) vegetation dynamics differ fundamentally between the two cities, with Perth characterized by vertically structured vegetation dominated by native tree layers and non-native disturbance-tolerant annual groundcover, while Beijing supports more continuous vegetation with widespread natural regeneration of native species; and (2) these differences correspond to distinct suggested NbS strategies. For Perth, NbS should combine phenology-aware management (wet versus dry seasons) with disturbance-based zoning and staged native planting strategies. In contrast, Beijing corridors are characterized by more uniform disturbance patterns but differentiated corridor typologies, indicating NbS structured around corridor-type management with a stronger emphasis on the support of native groundcover establishment and allowing for self-sustaining regeneration. These findings highlight how different contexts shape vegetation dynamics and provide comparative ecological insights for developing context-specific NbS for urban railway corridors. Full article

Perennial groundcover (PGC) systems integrate perennial grasses with annual crops such as corn (Zea mays L.) to provide continuous soil cover and enhance soil health. However, the proximity to groundcover vegetation can alter light quality perceived by developing seedlings, inducing shade avoidance response (SAR), a phytochrome-mediated developmental response that modifies plant architecture and may compromise yield. Identifying the distance at which SAR is initiated and the extent to which management practices modulate this response is critical for optimizing PGC systems. This growth chamber study aimed to (1) identify the distance at which SAR occurs in corn seedlings, (2) determine whether the thiamethoxam seed treatment mitigates SAR expression, and (3) compare hybrid physiological responses to PGC-induced SAR. The experiment was arranged in a randomized complete block design with four replications across three periods and included two corn hybrids (P1185, P1197), two seed treatments (untreated and thiamethoxam at 0.25 mg seed⁻¹), and four perennial ryegrass (Lolium perenne L.) distances [0, 6, 25 cm, and a control (no-grass)]. Reduced red to far-red light ratios associated with closer proximity to ryegrass induced SAR responses. Corn plants at 6 cm from PGC exhibited significant stem and height elongation beginning at 8 days after planting (DAP), followed by reduced growth by 14 DAP, confirming an early SAR response. Plants grown at 0 cm exhibited reduced height and growth compared to other distances at all growth stages. Hybrid responses differed, and Hybrid P1197 showed enhanced stem elongation, a characteristic SAR response. The thiamethoxam seed treatment did not mitigate SAR. These results indicate that SAR causes stem elongation without altering root or shoot biomass. Full article

Urban mental health burdens are increasing, prompting interest in how nearby green spaces aid emotional restoration. Bamboo-dominant green spaces are widespread in East Asia, but evidence connecting their management and structural features to restorative experiences is limited. This study conducted a controlled photo-exposure experiment in Ya’an, China, to examine how bamboo space typology and structural attributes relate to visual attention, affective responses, and short-term physiological recovery. One hundred and twenty participants viewed 50 photographs representing five bamboo space types (ecological conservation, productive–economic, protective–greenbelt, landscape–recreational, and understory–composite). Each image was linked to a matched field plot, enabling integration of structural indicators with eye tracking, EEG β/α, and repeated ratings of relaxation, pleasure, and preference. Results showed that landscape–recreational spaces received the highest affective ratings, while understory–composite spaces had longer fixations, indicating higher visual processing demands. Vertical stratification and groundcover coverage were robust predictors of affect beyond typology. Eye-movement metrics did not mediate structure–affect associations, and EEG β/α, as an auxiliary and context-dependent indicator under brief photo-based exposure, showed limited sensitivity. These findings offer insights into structural elements that can inform the design and management of bamboo green spaces for improved emotional restoration. Full article

The implementation of vegetative cover crops in vineyards is a sustainable alternative to chemical weed control, potentially influencing both soil fertility and grape-associated microbiota. This study evaluated the impact of six groundcover management strategies under vines—white clover (Trifolium repens), red clover (Trifolium pratense), burr medic (Medicago polymorpha), lupine (Lupinus albus), spontaneous weeds, and an herbicide-treated control—on the microbial dynamics and physicochemical properties of Cabernet Sauvignon must and wine from the Maipo Valley, Chile. Amplicon sequencing of bacterial (16S rRNA) and fungal (ITS) communities was combined with spontaneous fermentation trials and chemical analyses of must and wine. Fungal and bacterial communities on grape surfaces were dominated by Ascomycota and Proteobacteria, respectively, with no significant compositional differences among treatments. During fermentation, Metschnikowia and Tatumella were the most abundant non-Saccharomyces and bacterial genera, respectively, showing dynamic shifts across fermentation stages. Legume-based covers, particularly red clover, increased wine total acidity and polyphenol index while reducing pH. Correlation analyses revealed associations between specific microbial taxa (Metschnikowia, Cohnella, Saliterribacillus) and key enological parameters. Overall, these findings demonstrate that leguminous cover crops subtly modulate vineyard microbial ecology and fermentation outcomes, offering an environmentally sustainable pathway to enhance enological differentiation in semi-arid viticultural regions. Full article

Ongoing urbanization, biodiversity decline, and intensifying climate change increasingly challenge the sustainability of urban green spaces (UGS) dominated by conventional, intensively maintained lawns. Although widespread across cities worldwide, lawns are criticised for their low biodiversity value and high resource demands. This paper explores nature-based solutions (NBS) as viable alternatives for enhancing resilience and multifunctionality of urban lawns. It conceptualizes lawns as intertwined ecological, design, and socio-cultural systems, and evaluates strategies for their transformation. Building on case studies from ten Eurasian cities, a narrative literature review, and the authors’ inter- and transdisciplinary research experience, this study develops a typology of NBS alternatives, including urban species-rich meadows, semi-natural grasslands, naturalistic herbaceous perennial plantings, mixed-vegetation groundcovers, edible lawns, pictorial (annual) meadows, and rewilded lawns. Key interventions involve reduced mowing, multifunctional green spaces, adaptive management, and community engagement. Findings demonstrate that these approaches enhance biodiversity, ecosystem services, and climate resilience, but their success depends on local ecological conditions, landscape design, and public perceptions of urban nature. Alternative lawn designs and maintenance practices should employ native, drought- and trampling-resistant plants and context-sensitive design configurations while respecting cultural traditions of urban greening and fostering social acceptance. The paper suggests practical recommendations and directions for future research. Full article

Viticulture, a key economic activity in the Mediterranean area, is facing several challenges including soil degradation. Among the sustainable practices available, the management of cover crops in vineyard inter-rows using a roller crimper to create dead mulch is gaining pace as an effective strategy for soil conservation. Nevertheless, the effectiveness of roller crimpers in terminating groundcovers in vineyards may be reduced by pedoclimatic conditions, type of vegetation and roller crimper configuration and operational parameters. This study aimed to evaluate the effectiveness of a roller crimper with two different weight configurations, light (LR) and ballasted (HR), each tested with one (P1) or two passes (P2), in terminating a cover crop mixture in a vineyard. To evaluate the termination performance, plant green cover data were modeled using a one phase exponential decay nonlinear regression. The four systems were also assessed for their ability to conserve soil moisture and their impact on soil compaction. Although the HR + P2 showed the highest termination performance, the system using the HR + P1 obtained comparable results, with k values of 0.07 and 0.11 days⁻¹ and half-life values of 9.50 and 6.09 days in 2023 and 2024, respectively. Given the need to coordinate multiple vineyard operations within short and weather-dependent timeframes, a one-pass approach such as HR + P1 offers operational advantages, providing a practical compromise between efficacy and efficiency. Full article

The Mapleton Falls National Park transmission line corridor in Queensland, Australia, has received a number of vegetation management treatments over the last decade to maintain and protect the infrastructure and to ensure continuous electricity supply. Recent treatments have included ‘mega-mulching’ (mechanical mastication of vegetation to a mulch layer) in 2020 and targeted herbicide treatment of woody vegetation, with the aim of reducing vegetation height by encouraging a native herbaceous groundcover beneath the transmission lines. We measured vegetation structure (cover and height) and composition (species presence in 15 × 2 m plots), at 12 transects, 90 m in length on the transmission line corridor, to determine if management goals were being achieved and to determine how the vegetation and fire hazard (based on the overall fuel hazard assessment method) varied among the treated corridor, the forest edge environment, and the natural forest. The results showed that vegetation structure and composition in the treated zones had been modified to a state where herbaceous plant species were dominant; there was a significantly (p < 0.05) higher native grass cover and cover of herbs, sedges, and ferns in the treated zones, and a lower cover of trees and tall woody plants (>1 m in height) in these areas. For example, mean native grass cover and the cover of herbs and sedges in the treated areas was 10.2 and 2.8 times higher, respectively, than in the natural forest. The changes in the vegetation structure (particularly removal of tall woody vegetation) resulted in a lower overall fuel hazard in the treated zones, relative to the edge zones and natural forest. The overall fuel hazard was classified as ‘high’ in 83% of the transects in the treated areas, but it was classified as ‘extreme’ in 75% of the transects in the adjacent forest zone. Importantly, there were few introduced species recorded. The results suggest that fuel management has been successful in reducing wildfire risk in the transmission corridor. Temporal monitoring is recommended to determine the frequency of ongoing fuel management. Full article

In wet subtropical environments, perennial groundcovers are common in horticultural plantations to protect the soil from erosion. However, there has been little investigation into whether seeding annual cover crops into the perennial groundcovers provides additional soil services including carbon and nutrient cycling in these systems. To investigate this, farmer participatory field trials were conducted in commercial avocado, macadamia, and coffee plantations in the wet Australian subtropics. Cover crops were direct-seeded into existing inter-row groundcovers in winter (cool season cover crops), and into the same plots the following summer (warm season cover crops). Inter-row biomass was quantified at the end of winter and summer in the control (no cover crop) and cover crops treatments. Soil carbon and nutrient cycling parameters including hot water extractable carbon, water soluble carbon, autoclavable citrate-extractable protein and soil enzyme activities were quantified every two months from early spring (September) 2021 to late autumn (May) 2022. Seeded cover crops produced 500 to 800 kg ha⁻¹ more total inter-row biomass over winter at the avocado coffee sites, and 3000 kg ha⁻¹ biomass in summer at the coffee site. However, they had no effect on biomass production in either season at the macadamia site. Soil functional parameters changed with season (i.e., time of sampling), with few significant effects of cover crop treatments on soil function parameters across the three sits. Growing a highly productive annual summer cover crop at the coffee site led to suppression and death of perennial groundcovers, exposing bare soil in the inter-row by 3 weeks after termination of the summer cover crop. Annual cover crops seeded into existing perennial groundcovers in tree crop systems had few significant impacts on soil biological function over the 12-month period, and their integration needs careful management to avoid investment losses and exacerbating the risk of soil erosion on sloping lands in the wet subtropics. Full article

Many olive orchards are rainfed and located on poor and sloping soil. Tillage is the most common soil management system, leaving the soil vulnerable to erosion. Pruning is a frequently used field operation in olive orchards that generates biomass; thus, pruning residue can be shredded and used as mulch to cover and nourish the soil. Several strategies using pruning residue mulch and spontaneous groundcovers were established to study their effect on controlling runoff, erosion and soil organic carbon (SOC) loss under simulated rainfall. The simulation trials were conducted under two different intensity rainfalls: high-intensity rainfall and medium-intensity rainfall, which averaged 36.8 and 16.4 mm/h, respectively. A tillage system was compared to spontaneous vegetation using two doses of pruning residue mulch, 10 and 30 t/ha, and a mixture of 10 t/ha of pruning residue applied on spontaneous vegetation. Runoff was reduced to a higher degree with spontaneous groundcovers as infiltration was favoured. Soil loss was reduced by more than 95% and SOC loss by more than 85% regarding tillage with any type of groundcover for both rainfall intensities. Spontaneous vegetation with a pruning residue mulch system kept the soil protected to a greater degree against erosive processes, making the system more sustainable. Full article

There is a worldwide need to enhance soil health, particularly in agricultural areas. Groundcovers are widely recognized sustainable land management (SLM) practices that improve soil health and provide climate benefits by sequestering atmospheric carbon. A paired-plots study was carried out in woody crops (17 sites, olive groves and vineyards) in a semiarid area of central Spain to measure soil parameter changes induced by different management practices in the medium term. The selection across different locations aimed to determine whether the impact of groundcovers was substantial enough to produce significant changes in the studied soil parameters, even when accounting for variations in soil types. Each site consisted of neighboring plots: One was managed with conventional tillage (CT). The other was managed with an alternative soil management practice: (1) spontaneous groundcovers (GC) or (2) no soil management (NM). Vegetation and soil parameters were measured in spring 2021. Despite the low aboveground biomass in GC (77 g m⁻²), this treatment improved soil organic carbon stock (+4.4 Mg ha⁻¹), infiltration rate (+50%), and aggregate stability (+35%) compared to CT, but higher compaction along the profile was detected. NM only resulted in a better infiltration rate, with high soil compaction. Our study provides supplementary information to long-term studies, which may include soil biological parameters as soil health indicators and yield response. Outcomes of these soil assessments lend support to the implementation of agricultural policies that promote GC as a SLM practice, in order to extend this technique to woody crops. Full article

Soil organic carbon (SOC) is a key parameter of soil quality, and its improvement reduces the risk of desertification and provides several ecosystem services. Groundcovers are efficient for reducing soil degradation through erosion control and the improvement of organic matter. This article shows the effect of groundcovers with the addition of pruning residues on the SOC in olive orchards compared to soil management based on tillage. Four olive fields located in several edaphoclimatic zones of the Andalusia Region (southern Spain) were monitored, and the SOC stock was assessed during four seasons. The spontaneous groundcovers with the addition of shredded pruning residues had significant effects on SOC in all fields. The tillage treatment also increased the SOC content due to the carbon input through spontaneous vegetation and pruning residues, but to a lesser extent than the non-disturbed soil with groundcovers. The climate and soil characteristics of each zone, especially the clay content, determined the magnitude of the SOC increase. Carbon sequestration rates ranged from 0.02 to 3.02 MgC ha⁻¹ yr⁻¹ up to 30 cm in depth, and the SOC stock measured at the end of the four-season study period was significantly higher in the groundcover treatment, making this system sustainable in olive orchards and recommendable for the entailed ecosystem services. Full article

Soil organic matter depletion is a significant concern in agricultural soils, impacting crucial aspects of ecosystem health, especially soil properties such as fertility and soil moisture retention. Adopting sustainable soil management practices, such as cover crops, can mitigate this issue. In this study, we analyzed the soil organic carbon (SOC) content and quality in vineyards using two distinct management methods: permanent spontaneous cover crops and conventional tillage. Dissolved organic carbon (DOC) was quantified and chemically characterized using UV–visible spectroscopy. Our results showed an increase of 4.7 Mg C/ha in the carbon stock (50 cm depth) after 10 years of implementing vegetation covers compared with tilled soil. Additionally, cover crop management increased less humified soluble carbon in surface soil layers, while tillage transformed the solubilized carbon. This finding is important because tilled soil becomes more accessible to microbial degradation and leaching, which, in the long term, leads to a SOM content decrease. In conclusion, an increase in carbon stock was observed when using cover crops due to the incorporation of fresh organic matter, whereas tilled soils showed a depletion of carbon stock, including the mobilization of more stable carbon. Full article