Exploring the evolution of coupled natural-cultural ecosystem services and their geographically scaled driven modeling in a coastal city of Southeast China.

Rapid urban expansion and economic development challenges to the sustainability of ecosystem services (ESs), a solid understanding of the mechanisms that drive ESs helps policymakers to respond. However, few existing studies on ES-driven mechanisms emphasize the integration of natural and cultural services, with most neglecting spatial non-stationarity at the geographic scale. Here, we improved the ROS model to quantify cultural ecosystem services (CES) and developed a comprehensive ecosystem services index (CESI) by coupling CES with 6 typical natural ESs (carbon storage (CS), water yield (WY), nitrogen export (NE), soil conservation (SC), habitat quality (HQ), food supply (FS)), subsequently, Spearman's correlation and MGWR were employed to reveal the CESI-driven mechanism considering geographic scales. The results showed that: (1) From 2000 to 2020, CS, WY, SC, and HQ exhibited decline, which contrasts with the significant increase in CES. (2) The CESI showed a decreasing trend (3.28-3.70) while the coefficient of variation was increasing over time (0.11-0.15). The overall spatial distribution of CESI shows higher northwest than southeast, with strong spatial autocorrelation. (3) The CESI exhibits synergistic associations with CS, SC, HQ, and CES (0.54-0.83), and forms trade-offs with WY, NE, and FS. (4) Climate, vegetation, landscape, human, and topography have significant effects on CES and CESI with a significantly geographic scale differences, especially areas closer to the sea exhibit heightened sensitivity. Besides, the combined effects of multiple factors are stronger than any individual driver. The results emphasize the necessity of introducing ecological land in coastal cities and establishing natural reserves in high CESI areas to maintain diversity. The study improves the CES assessment methodology and proposes an integrated analytical framework that combines natural and cultural ESs with geographic-scale drivers, providing a new perspective on the analysis of ESs mechanisms.

Chinese-Australian carers' perceived needs and preferences in planning to embed an iSupport for Dementia program in aged care services.

OBJECTIVE: To assess Chinese-Australian carers' needs and preferences through co-design strategies with stakeholders to embed an evidence-based iSupport for Dementia program into routine community aged care services in Chinese ethno-specific aged care organisations. METHODS: A cross-sectional survey was conducted from July to August 2022 in three Chinese ethno-specific aged care organisations in Australia. We applied a univariate analysis to test variables associated with carers' needs and preferences when embedding the iSupport for Dementia program into routine practice among community aged care services. RESULTS: A total of 101 carers completed the survey. Most carers in our study preferred the iSupport program to be provided in their first language, have a program facilitator to lead the program and would like to interact with peers in the program. Most carers indicated that they are willing to pay for the iSupport program using the budget allocated to their home care package. Younger carers (younger than 65 years), and adult children's carers are more likely to use the web-based iSupport manual and invite their family members to the program compared to those older than 65 years. Other demographic characteristics had no significant association with their needs and preferences. CONCLUSIONS: Chinese-Australian carers' perceived needs and preferences in this study will inform the implementation of a culturally tailored iSupport program to be embedded in community aged care services provided by Chinese ethno-specific aged care organisations. Findings will also inform culturally and linguistically congruent iSupport programs for carers from other culturally and linguistically diverse communities in Australia.

Effects of conservation tillage on soil enzyme activities of global cultivated land: A meta-analysis.

The negative impacts of conventional agriculture and the imperative to adopt conservation tillage garnered significant attention. However, the effects of conservation tillage on soil enzyme activities still lack comprehensive cognition. Here, we collected 14,308 pairwise observations from 369 publications worldwide to systematically evaluate the effects of different conservation tillage practices (reduced tillage (T), reduced tillage with straw return (TS), reduced tillage with straw mulch return (TSO), no-tillage (NT), no-tillage with straw return (NTS), and no-tillage with straw mulch return (NTSO)) on the activities of 35 enzymes in soil. The results showed that: (1) the effect of conservation tillage on soil enzyme activity varied by enzyme type, except for peroxidase (-12.34%), which showed an overall significant positive effect (10.28-89.76%); (2) the NTS and TS demonstrated strong potential to improve soil enzyme activities by increasing a wide variety of soil enzyme activities (12-15) and efficacy (9.76-75.56%) than other conservation tillage (8.60-68.68%); (3) in addition, the effect of conservation tillage on soil enzyme activity was regulated by soil depth, crop type, years of conservation tillage, climate (mean annual precipitation and temperature), and soil physicochemical properties (e.g., pH, bulk density, electrical conductivity, organic matter, ammonium nitrogen, total phosphorus, available phosphorus, total potassium, available potassium, etc.). Overall, our quantitative analysis clearly suggests that conservation tillage is an effective measure for improving soil enzyme activity on global croplands, where combination of reduced tillage or no-till with straw return are considered to have great potential and promise. The results contribute to better comprehend the effects of conservation tillage on soil activity and provide a valuable insight for agricultural management.

Study on soil erosion and its driving factors from the perspective of landscape in Xiushui watershed, China.

Soil erosion (SE) is one of the most serious disasters in the world, which directly damage the productivity of the land and affect human well-being. How to effectively mitigate soil erosion is a challenge faced by all countries in the world. In this study, soil erosion was quantitatively assessed base on the RULSE model in an ecologically fragile area [Xiushui watershed (XSW)], and the effects of three major categories of factors (land use/cover change, landscape fragmentation and climate) on soil erosion were investigated using correlation analysis and structural equation model. The results indicated that there was no continuous increase or decrease trend on the SE of XSW with impact of rainfall, the mean values of SE were 2205.27 t/ha, 3414.25 t/ha and 3319.44 t/ha from 2000 to 2020 and the hot areas of SE were mainly distributed around the Xiushui river channel, respectively. The expansion of urbanization (the area of impervious increased from 113.12 to 252.57 km2) aggravated landscape fragmentation, and the landscape fragmented area had some overlap with the hot zone of SE. Additionally, the LUCC factor dominated by NDVI, landscape fragmentation factor and climate factor dominated by rainfall had a directly driving effect on SE, where the path coefficient of landscape fragmentation was 0.61 (P < 0.01), respectively. We also found that except increasing forest area, improving forest quality (NDVI, canopy closure, structure) deserved emphasized in SE management, and the effect of landscape fragmentation on SE also should not be ignored. Moreover, soil erosion assessment at large scales over long time periods tends to underestimate the driving force of rainfall on SE, and it is a great challenge to evaluate the effect of extreme rainfall on soil erosion at short time scales in a downscale manner. This research provides insights for ecological sustainable management and soil erosion protection policies.

Cultural adaptation of World Health Organization iSupport for Dementia program for Chinese-Australian caregivers.

BACKGROUND: Home-based dementia care is common in the Chinese-Australian community. However, dementia education programs for Chinese-Australians in the language of their choice are scarce. The World Health Organization has developed iSupport for Dementia, an online education program for informal caregivers. Cultural adaptation of the program for Chinese-Australian caregivers is an opportunity to address this gap in caregiver support. AIM: The aims of the study were (1) to understand stakeholders' perspectives on the cultural and linguistic appropriateness of the Chinese iSupport for Dementia content and design and (2) to explore factors affecting the future implementation of the Chinese iSupport program in Australia. METHODS: A qualitative descriptive design was applied to address the aims of the study. Focus group discussions with Chinese-Australian caregivers and community aged care workers were conducted to collect data. Thematic analysis was used to analyse data. RESULTS: In total, six focus groups were conducted with 18 Chinese-Australian caregivers and 17 care workers. Six themes were identified and described as follows: (1) appropriateness of the Chinese iSupport content; (2) acceptability of the online Chinese iSupport design; (3) motivations to engage in the iSupport program; (4) desire to interact with peers and professional facilitators; (5) concerns about program accessibility; and (6) the need to extend the iSupport program to care workers. CONCLUSIONS: Engagement with Chinese-Australian caregivers and care workers will inform further revisions of the Chinese iSupport program contents to ensure the program is culturally congruent to Chinese-Australian caregivers. Factors affecting the implementation of the program identified in the study will be considered in the intervention phase of the program.

Environmental risk assessment on capsaicin used as active substance for antifouling system on ships.

Biodegradation experiments were carried out with capsaicin to evaluate its degradability. The results show that capsaicin was readily biodegradable under aerobic conditions. The values of Kow and the calculated bioconcentration factor indicate that capsaicin have a low potential for bioconcentration. The fish acute toxicity tests conducted with Brachydanio rerio show LC50 for capsaicin was 5.98 mg L(-1). The tests of alga growth inhibition conducted with Selenastrum capricornutum suggest EC50 for capsaicin was 114 mg L(-1). The calculated PNEC (Predicted No Effect Concentration) was 4.9×10(-4) mg L(-1). The average PEC (Predicted Environmental Concentration) for OECD-EU commercial harbor and marina were 3.99×10(-6) and 2.49×10(-5) mg L(-1), respectively. These indicate that the PEC was much less than the PNEC for capsaicin. The low Kp value of capsaicin suggests the data about the risk of capsaicin to sediment organisms can be waived. According to the results from the analysis of the degradation, bioaccumulation, toxicity and accumulation in sediment, it can be concluded that capsaicin used as active substance for antifouling system on ships poses relatively low risk to marine environment.

[Ru/AC catalyzed ozonation of recalcitrant organic compounds].

Ozonation and Ru/AC catalyzed ozonation of dimethyl phthalate (DMP), phenols and disinfection by-products precursors were studied. It shows that Ru/AC catalyst can obviously enhance the mineralization of organic compounds. In the degradation of DMP, TOC removal was 28.84% by ozonation alone while it was 66.13% by catalytic ozonation. In the oxidation of 23 kinds of phenols, TOC removals were 9.57%-56.08% by ozonation alone while they were 41.81%-82.32% by catalytic ozonation. Compared to ozonation alone, Ru/AC catalyzed ozonation was more effective for the reduction of disinfection by-products formation potentials in source water. The reduction of haloacetic acids formation potentials was more obvious than thichlomethane formation potentials. After the treatment by catalytic ozonation, the haloacetic acids formation potentials decreased from 144.02 microg/L to 58.50 microg/L, which was below the standard value of EPA. However ozonation alone could not make it reach the standard. The treatments of source water by BAC, O3 + BAC, O3/AC + BAC and Ru/AC + O3 + BAC were also studied. In the four processes, TOC removal was 3.80%, 20.14%, 27.45% and 48.30% respectively, COD removal was 4.37%, 27.22%, 39.91% and 50.00% respectively, UV254 removal was 8.16%, 62.24%, 67.03% and 84.95% respectively. Ru/AC + O3 + BAC process is more effective than the other processes for the removal of TOC, COD and UV254 and no ruthenium leaching observed in the solution. It is a promising process for the treatment of micro polluted source water.

Catalytic ozonation of dimethyl phthalate and chlorination disinfection by-product precursors over Ru/AC.

Catalytic ozonation of dimethyl phthalate (DMP) in aqueous solution (5mg/L) under various reactions was performed to examine the effect of catalyst dosage, catalyst particle size, ozone dosage, and gas flow rate on the mineralization of DMP. The mineralization of DMP can be achieved via ozonation and the presence of Ru/AC could greatly accelerate the mineralization rate of DMP in ozonation process. In the continuous experiment of the Ru/AC catalyzed ozonation of DMP, total organic carbon (TOC) removals were kept stable around 75% during 42 h reaction. No leaching of ruthenium was observed in the treated water samples. The treatment of natural water using Ru/AC+O(3), Ru/AC+O(2) and ozonation alone was studied. In the Ru/AC+O(3) process, TOC removals, the reductions of the haloacetic acid formation potentials (HAAFPs), and the reductions of the trihalomethane formation potentials (THMFPs) of 11 water samples were 22-44%, 39-61% and 50-65%, respectively. Ru/AC+O(3) process was much more effective than ozonation alone for TOC removal and the reduction of disinfection by-product formation potential (DBPFP) in the treatment of natural water. It is a promising water treatment technology.

[Catalytic oxidation of dimethyl phthalate in aqueous solution by aluminum oxide].

With dimethyl phthalate as the model pollutant and alumina as catalyst, the degradation of TOC system was systemically investigated. Results show that Al2O3 can significantly increase the effect of ozonation, and TOC removal rate in 120 minutes can reach 55.1% while only 23.9% with alone ozone. Al2O3 activeness is upmost under the follow conditions: calcination temperature, 600 degrees C; particle diameter, 0.5 - 1 mm; catalyst dosage, 20 g/L; gas flow rate, 200 mL/min, react temperature, 15 degrees C. The contrastive experiments of alone ozone, catalyst adsorption after ozonation and catalytic ozonation confirmed that catalytic reaction is the most important process to TOC removal in system with alumina as catalyst.