Journal of environmental quality最新文献

{"title":"Spatial variability of nitrous oxide emissions from croplands and unmanaged natural ecosystems across a large environmental gradient","authors":"Juan Manuel Piñeiro-Guerra,&nbsp;Nuria A. Lewczuk,&nbsp;Tomás Della Chiesa,&nbsp;Patricia I. Araujo,&nbsp;Martín Acreche,&nbsp;Carolina Alvarez,&nbsp;Carina R. Alvarez,&nbsp;Jorge Chalco Vera,&nbsp;Costantini Alejandro,&nbsp;De Tellería José,&nbsp;Marcos Petrasek,&nbsp;Carlos Piccinetti,&nbsp;Liliana Picone,&nbsp;Silvina I. Portela,&nbsp;Gabriela Posse,&nbsp;Seijo Martin,&nbsp;Cecilia Videla,&nbsp;Laura Yahdjian,&nbsp;Gervasio Piñeiro","doi":"10.1002/jeq2.20663","DOIUrl":"10.1002/jeq2.20663","url":null,"abstract":"<p>Atmospheric nitrous oxide (N₂O) is a potent greenhouse gas, with long atmospheric residence time and a global warming potential 273 times higher than CO₂. N₂O emissions are mainly produced from soils and are influenced by biotic and abiotic factors that can be substantially altered by anthropogenic activities, such as land uses, especially when unmanaged natural ecosystems are replaced by croplands or other uses. In this study, we evaluated the spatial variability of N₂O emissions from croplands (maize, soybean, wheat, and sugar cane crops), paired with the natural grasslands or forests that they replaced across a wide environmental gradient in Argentina, and identified the key drivers governing the spatial variability of N₂O emissions using structural equation modeling. We conducted on-farm field measurements over 2 years at nine different sites, including a wide environmental gradient (mean rainfall from 679 to 1090 mm year⁻¹ and mean temperatures from 13.8°C to 21.3°C), with diverse plant species life forms, and ecosystems, from the Semiarid Chaco forests in the Northwest of Argentina to the Pampas grasslands in the Southeast. On average, agricultural systems emitted more than twice N₂O (+120%), had higher soil water content (+9%), higher soil temperatures (+3%), higher soil nitrate content (+19%) but lower ammonium (−33%) than natural ecosystems. We found that land use was the main driver of N₂O emissions by directly affecting soil NO₃⁻ contents in both natural ecosystems and croplands. Urgent management practices aimed at reducing N₂O emissions from croplands are needed to mitigate their contributions to global climate change.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 2","pages":"483-498"},"PeriodicalIF":2.2,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142921226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

{"title":"Aquatic nitrogen source elucidation using stable isotope analysis in the North Carolina Coastal Plain","authors":"Adam G. Chaffin,&nbsp;Lawrence B. Cahoon,&nbsp;Michael A. Mallin,&nbsp;Chad Lane,&nbsp;Kerry Mapes","doi":"10.1002/jeq2.20669","DOIUrl":"10.1002/jeq2.20669","url":null,"abstract":"<p>Eastern North Carolina has been subjected to widespread water quality degradation for decades, notably throughout the Cape Fear River Watershed, owing largely to the magnitude of concentrated animal feeding operations (CAFOs) in the region. Long-term nutrient monitoring data from numerous locations throughout southeastern North Carolina have shown significantly elevated organic nitrogen (Org-N) concentrations starting around the year 2000—a concerning development, as labile Org-N can stimulate algal blooms and subsequent bacterial production, thus enhancing eutrophication in freshwater systems. By measuring the stable isotope signatures (δ¹³C, δ¹⁵N) of particulate organic matter sampled from a range of southeastern North Carolina waters, the predominant sources to the observed Org-N loadings were elucidated. Isotope data from across the Cape Fear River watershed indicated a large gradient of livestock waste-N contributions, with hog waste-N contributions consistently higher in the Northeast Cape Fear River watershed and with fertilizer-N contributions higher in the Black River watershed—findings that are consistent with each sub-basin's land usage. %N sediment content was positively correlated with hog waste-N contributions in the Black River watershed, indicating that sediments in CAFO-dense regions are reservoirs for agricultural nutrient pollution. Hog waste-N source contributions and %N sample contents for Black River sediments were strongly correlated with regional swine and poultry CAFO densities, establishing a strong connection between industrial animal production and stream sediment nutrient loads. Collectively, these findings suggest a major role of livestock waste, as well as human sewage, in driving the long-term Org-N increase in eastern North Carolina water bodies.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 2","pages":"499-512"},"PeriodicalIF":2.2,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142921207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

{"title":"Controls on nitrogen export to an ephemeral stream network of St. Croix, US Virgin Islands","authors":"Brittany V. Lancellotti,&nbsp;David A. Hensley","doi":"10.1002/jeq2.20667","DOIUrl":"10.1002/jeq2.20667","url":null,"abstract":"<p>Ephemeral streams are important pollutant conduits, but the mechanisms that control nutrient transport to these systems remain unclear. In the US Virgin Islands (USVI), where most streams flow ephemerally, a lack of continuous hydrologic and water quality data limits our understanding of streamflow behavior and its influence on water quality. We therefore assessed the impact of soil moisture and hydrometeorological conditions on nitrogen (N) concentrations within an ephemeral stream on St. Croix, USVI. Stream N concentrations were usually highest during initial flow events, after prolonged dryness, and declined thereafter. Nitrogen increased with shallow antecedent soil moisture and rainfall intensity and decreased with deep soil moisture and baseflow emergence, indicating it was predominantly exported to the stream via surface runoff, as opposed to subsurface leaching. Our results are the first of their kind for the USVI and could be used to improve water quality of freshwater and marine systems.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 2","pages":"465-482"},"PeriodicalIF":2.2,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeq2.20667","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142921213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

{"title":"Impact of tillage, cover crop, and in situ bioreactors on nutrient loss from an artificially drained Midwestern Mollisol.","authors":"Natalia Rogovska, John L Kovar, Robert Malone, Peter O'Brien, Bryan Emmett, Sabrina J Ruis","doi":"10.1002/jeq2.20668","DOIUrl":"https://doi.org/10.1002/jeq2.20668","url":null,"abstract":"<p><p>Nutrient losses via subsurface tile cause environmental degradation of aquatic ecosystems. Various management practices are primarily aimed at reduction of nitrate leaching in tile discharge; however, studies on leaching of other nutrients are limited. A replicated plot experiment was initiated in 2016 as part of the Long-Term Agroecosystem Research (LTAR) network Croplands Common Experiment to quantify the effectiveness of management practices on leaching of NO₃-N, total P, K, and S from drained soils. Corn (Zea mays L.) and soybean (Glycine max L. Merr.) were grown under five different treatments: (1) BP: basic practice with fall chisel plow; (2) NT: no-till crop production; (3) RC: no-till with a winter rye (Secale cereale L.) cover crop; (4) DW: no-till with woodchip denitrification walls parallel to both sides of the tile; and (5) ZN: zero N; no-till without N fertilization. Compared to BP, both RC and DW treatments reduced NO₃-N load by 63% and 47%, respectively; 15.5, 5.8, and 8.2 kg N ha^-1 year^-1, while omitting N fertilization did not impact N loads (12 kg N ha^-1 year^-1). The DW resulted in greater K loss compared to BP, presumably due to decomposing woodchips. No-till practices increased drainage flow and K and P loads compared to conventionally tilled BP plots but had no impact on other nutrients. The BP produced the highest corn yield, whereas soybean yields were not affected by treatments. These findings indicate that while some conservation practices are effective in reducing nutrient leaching, others are likely to increase their loss and reduce crop yields.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142894922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

{"title":"The GrassSyn dataset: Soil organic carbon stocks in Brazilian grassy ecosystems","authors":"Bianca Ott Andrade,&nbsp;Cristhian Hernandez Gamboa,&nbsp;Gabriel William Dias Ferreira,&nbsp;Martin Wiesmeier,&nbsp;Eduardo Delgado Assad,&nbsp;Carlos Eduardo Pellegrino Cerri,&nbsp;José Márcio Mello,&nbsp;Vinícius Augusto Morais,&nbsp;Gerhard E. Overbeck,&nbsp;Herval Vieira Pinto-Junior,&nbsp;José Roberto Soares Scolforo,&nbsp;Carlos Gustavo Tornquist","doi":"10.1002/jeq2.20665","DOIUrl":"10.1002/jeq2.20665","url":null,"abstract":"<p>Although ecosystem management and restoration are known to enhance carbon storage, limited knowledge of ecosystem-specific soil organic carbon (SOC) stocks and processes hinders the development of climate-ready, biodiversity-focused policies. Baseline SOC stocks data for specific ecosystems is essential. This paper aims to: (i) examine SOC stock variability across major grassy ecosystems in Brazil and (ii) discuss data limitations and applications. We compiled the Grassland Synthesis Working Group dataset, which comprehensively aggregates SOC stocks data from published studies on main Brazil's grassy ecosystems. Our dataset results from systematic literature review and regional soil sampling datasets. The dataset provides spatially explicit SOC stocks, physical soil properties, and ancillary information from 182 studies (1996–2021) across 803 sites, spanning 35° latitude and 28° longitude. The dataset, structured in relational tables, reports soil C stocks and ancillary soil parameters at depths up to 100 cm. SOC stocks vary by grassy ecosystem types and sampling depth, with subtropical grasslands (Campos Gerais, South Brazilian highland grasslands, and Pampa) showing the highest SOC stocks across all depth layers (SOC 0–30 cm: 64.5–162.8 Mg C ha⁻¹; SOC 0–100 cm: 137.6–224.7 Mg C ha⁻¹). The tropical Cerrado and Amazon grassy ecosystems exhibit high SOC stocks, particularly in subsurface layers (SOC 0–30 cm: 53.6 and 38.3 Mg C ha⁻¹; SOC 0–100 cm: 109.8 and 121.4 Mg C ha⁻¹, respectively). Our data analysis shows high carbon stocks in natural/seminatural ecosystems, but some ecosystems are undersampled. The dataset on SOC stocks in grassy ecosystems could greatly aid Brazil's national greenhouse gas inventory.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 2","pages":"335-348"},"PeriodicalIF":2.2,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jeq2.20665","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142894983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

{"title":"PFAS in agroecosystems: Sources, impacts, and opportunities for mitigating risks to human and ecosystem health","authors":"Heather E. Preisendanz,&nbsp;Hui Li,&nbsp;Michael Mashtare,&nbsp;Odette Mina","doi":"10.1002/jeq2.20670","DOIUrl":"10.1002/jeq2.20670","url":null,"abstract":"<p>Concerns regarding per- and polyfluoroalkyl substances (PFAS) and their precursors have driven increased research into their sources, impacts, and mitigation strategies, aiming to reduce their prevalence in the environment. While much of this research has centered on known large sources of PFAS (e.g., military bases, airports, fire training sites, and some manufacturing facilities), there has been increased interest in evaluating the inadvertent introduction of PFAS into agroecosystems from beneficial reuse of treated domestic wastewater for irrigation and land application of biosolids and composts derived from food waste. Additional sources to agricultural fields include the use of PFAS-containing pesticides. These activities raise questions regarding the potential impacts of PFAS introduced to agricultural systems on rural water supplies, soil health, and food safety. This special section contains papers that fall into three categories: (i) source assessment of PFAS in water and wastewater residuals destined for beneficial reuse in agroecosystems, (ii) improved understanding of PFAS fate and transport in agroecosystems following land application of PFAS-containing materials, and (iii) small-scale assessment of techniques that demonstrate promise for mitigating PFAS mobilization in agroecosystems. The work contained in this special section can be used to help guide future decisions related to PFAS guidelines, policies, and regulations in agroecosystems intended to protect human and ecological health.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 1","pages":"1-5"},"PeriodicalIF":2.2,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11718121/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142882088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

{"title":"Environmental impacts of land application of biosolids to perennial pastures","authors":"Leandro O. Vieira-Filho,&nbsp;Maria L. Silveira,&nbsp;Joao M. D. Sanchez,&nbsp;Marta M. Kohmann,&nbsp;Ester C. Ricken","doi":"10.1002/jeq2.20664","DOIUrl":"10.1002/jeq2.20664","url":null,"abstract":"<p>Land application of biosolids to pastures confers multiple agronomic and environmental benefits, particularly in coarse-textured soils with low nutrient and organic matter levels. However, concerns over potential water quality have led to more stringent regulations that will limit beneficial reuse of biosolids in Florida. This 3-year field study evaluated the impacts of biosolids application strategies on N and P leaching losses, and soil P availability in an established bahiagrass (<i>Paspalum notatum</i> Flueggé) pasture. Treatments consisted of 2 P sources (biosolids and inorganic fertilizer) applied at 0, 20, 40, and 60 kg total P ha⁻¹. Inorganic fertilizer treatments received the same N loads as the corresponding biosolids treatments. Biosolids and inorganic fertilizer increased in situ soil P availability and pore-water P concentrations relative to the control. Pore-water P concentrations increased linearly with P rate with the greatest values generally associated with inorganic fertilizer. Relatively low leachate P concentrations (below the detection limit of 0.025 mg L⁻¹ in 596 out of 777 samples) observed in the current study indicates minimum P offsite movement risk regardless of the P management strategy. Annual P mass leached was not affected by treatments; however, inorganic fertilizer resulted in modest but significant greater annual NO₃-N mass leached than the other treatments. Lack of biosolids application rate effect on P and N leaching losses indicates that reduction in biosolids imposed by new state regulation will likely have no positive impact on water quality. Data demonstrated that, when properly managed, biosolids can be an environmentally sound fertilizer source for pastures.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 1","pages":"246-256"},"PeriodicalIF":2.2,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142822280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

{"title":"A risk index tool to minimize the risk of nitrogen loss from land to water","authors":"R. W. McDowell,&nbsp;V. O. Snow,&nbsp;R. Tamepo,&nbsp;L. Lilburne,&nbsp;R. Cichota,&nbsp;K. Muraoka,&nbsp;E. Soal","doi":"10.1002/jeq2.20660","DOIUrl":"10.1002/jeq2.20660","url":null,"abstract":"<p>Simple models can help reduce nitrogen (N) loss from land and protect water quality. However, the complexity of primary production systems may impair the accuracy of simple models. A tool was developed that assessed the risk of N loss as the product of N source inputs and relative transport by leaching and runoff. A dynamic process-based model was used to estimate the long-term monthly N loss risk by leaching and runoff in response to the interaction of static biophysical factors like soil type, slope, and long-term climate. Source inputs included dung and urine (from livestock), fertilizer, crop residues, and soil erosion. Estimates of the rank of N loss risk were related (<i>r</i>² = 0.69, <i>p </i>&lt; 0.001) to 96 observations of N loss (kg ha⁻¹ year⁻¹) across nine land uses; all but two of the observations fell within 95% prediction intervals. Across land uses, leaching accounted for 84% of N loss risk. Additional observations are needed to determine if N loss risk is representative of short-rotation vegetables and to account for potential lag times between calculated and measured losses. The good performance of the tool suggests that when displayed spatially, the tool can be used to target high-risk areas with actions to reduce the risk of N loss and the likelihood of water quality impairment.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 1","pages":"233-245"},"PeriodicalIF":2.2,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11718142/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142818247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

{"title":"Long-term changes in riparian connectivity and groundwater chemistry in an urban watershed","authors":"Brittany N. Washington,&nbsp;Peter M. Groffman,&nbsp;Jonathan M. Duncan,&nbsp;Lawrence E. Band,&nbsp;Andrew J. Miller","doi":"10.1002/jeq2.20654","DOIUrl":"10.1002/jeq2.20654","url":null,"abstract":"<p>Hydrologic alterations associated with urbanization can weaken connections between riparian zones, streams, and uplands, leading to negative effects on the ability of riparian zones to intercept pollutants carried by surface water runoff and groundwater flow such as nitrate (NO₃⁻) and phosphate (PO₄³⁻). We analyzed the monthly water table as an indicator of riparian connectivity, along with groundwater NO₃⁻ and PO₄³⁻ concentrations, at four riparian sites within and near the Gwynns Falls Watershed in Baltimore, MD, from 1998 to 2018. The sites included one forested reference site (Oregon Ridge), two suburban riparian sites (Glyndon and Gwynnbrook), and one urban riparian site (Cahill) with at least two locations and four monitoring wells, located 5 m from the center of the stream, at each site. Results show an increase in connectivity as indicated by shallower water tables at two of the four sites studied: Glyndon and Cahill. This change in connectivity was associated with decreases in NO₃⁻ at Glyndon and increases in PO₄³⁻ at Glyndon, Gwynnbrook, and Cahill. These changes are consistent with previous studies showing that shallower water table depths increase anaerobic conditions, which increase NO₃⁻ consumption by denitrification and decrease PO₄³⁻ retention. The absence of change in the forested reference site, where climate would be expected to be the key driver, suggests that other drivers, including best management practices and stream restoration projects, could be affecting riparian water tables at the two suburban sites and the one urban site. Further research into the mechanisms behind these changes and site-specific dynamics is needed.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 1","pages":"257-274"},"PeriodicalIF":2.2,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11718151/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}

{"title":"Fertilizer management approaches influence nutrient leaching from residential landscapes","authors":"Alexander J. Reisinger,&nbsp;Eban Z. Bean,&nbsp;Mark Clark,&nbsp;Ansley J. Levine,&nbsp;P. Christopher Wilson","doi":"10.1002/jeq2.20657","DOIUrl":"10.1002/jeq2.20657","url":null,"abstract":"<p>Residential lawn management often includes fertilizer application to encourage healthy plant growth and support the aesthetic preferences of homeowners and communities. These inputs may negatively impact the environment by increasing nutrient export to aquatic ecosystems via surface runoff or leaching through soil into groundwater. Fertilizer management and nutrient export are of particular concern in karst areas like North-Central Florida, where the underlying karst geology leads to rapid, direct connections between surface and groundwater ecosystems. We quantified nitrogen (N) and phosphorus (P) leaching from residential landscapes in North-Central Florida. We investigated nutrient leaching from landscapes spanning a real estate gradient and across different fertility treatments (no N fertilizer, synthetic mineral fertilizer, biosolids-based organic mineral fertilizer, compost topdressing, natural areas). We measured leachate from these landscapes weekly for 1 year. All residential landscapes, including control yards that received no N fertilizer, leached &gt;10x more nitrate than natural areas, and landscapes treated with synthetic fertilizer exhibited an &gt;80x increase in nitrate leaching. Fertilizer treatments also appeared to alter the N leaching composition, with a greater proportion of total dissolved N leaching coming from nitrate in fertilized treatments (synthetic and organic) compared to natural, control, or compost-treated landscapes. These results show that landscape management and human actions are important drivers of nutrient leaching in residential landscapes. While all residential lawns leached more N than natural areas, less leaching was associated with certain management approaches. When implemented at larger scales, these approaches may reduce the likelihood of negative impacts of residential landscapes on regional water quality.</p>","PeriodicalId":15732,"journal":{"name":"Journal of environmental quality","volume":"54 1","pages":"289-302"},"PeriodicalIF":2.2,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142794733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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}