Results 21 to 30 of about 2,807 (123)
Effects of Na/Ca/Fe intermetallic interactions on nitrogen transformations in high-alkali coal pyrolysis [PDF]
China Xinjiang high-alkali low-rank coal has the characteristics of low ash, high sodium content and high reactivity. Developing clean and efficient conversion technology for high alkali coal into high-value chemicals will have important strategic ...
Jifeng SHANG +5 more
core +1 more source
Review of Policy Research, Volume 42, Issue 6, Page 1496-1508, November 2025.ABSTRACT This study adopts a policy‐centric perspective to explore the complex relationship between sustainable nitrogen management (SNM) and the health risks associated with unsafe drinking water. The critical policy challenge lies in balancing the essential role of nitrogen fertilizers in achieving high agricultural productivity with their ...
Mingean Park +3 more
wiley +1 more source
Functional Ecology, Volume 39, Issue 10, Page 2704-2716, October 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Moso bamboo (Phyllostachys edulis) invasions into broadleaf forests can cause serious ecological problems, such as reducing biodiversity and disrupting community succession.
Ting Zhou +5 more
wiley +1 more source
Trait‐Mediated Competition for Light Underpins Plant Diversity Loss Under Eutrophication
Global Change Biology, Volume 31, Issue 9, September 2025.Eutrophication often reduces plant diversity by making the ground layer darker, which reduces understory plants. In a natural alpine grassland, we added LED light beneath the canopy and saw diversity return across different nutrient treatments: with added nitrogen fertilizer, light mainly increased new species; with added phosphorus fertilizer, it ...
Tianyuan Tan +7 more
wiley +1 more source
Nitrogen Abatement Cost Functions in Jiulong River Basin [PDF]
, 2013 流域、湖库和近岸水体的富营养化是世界各国面临的严重水环境问题之一。我国超过50%的流域、湖库和近岸海洋面临着富营养化问题。营养盐污染引起的重大环境、经济损害及其高昂的削减成本,使得流域营养盐削减成本函数以及以此为基础的成本最低的营养盐削减最优方案成为学术界和管理界关注的热点领域。建立了中小尺度流域5种营养盐削减措施成本函数的研究方法和模型,并将建立的方法应用到九龙江北溪流域,建立了不同子流域、不同营养盐削减方式的成本函数。研究发现,不同营养盐削减措施的成本相差较大 ...
彭本荣, 徐佳音, 林琛琛, 虞杰
core
Multiple global change factors alter the scaling of nitrogen to phosphorus in alpine plants
Functional Ecology, Volume 39, Issue 8, Page 2044-2055, August 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract The stoichiometry and allometry of nitrogen (N) and phosphorus (P) reflect nutrient absorption and dynamic allocation by plants, and can be regulated by global change factors (e.g. nitrogen enrichment, climate warming and altered precipitation). Yet, how multiple global
Jiapu Li +10 more
wiley +1 more source
Shuitu Baochi Xuebao, 2008 在滇池北岸韭黄生产基地采用田间试验的方法,研究了氮肥减施及双氰胺(DCD)施用对土壤氮素流失的影响。结果表明:减施20%的氮肥,韭黄产量无明显减少,但可以分别减少淋溶、侧渗、径流水氮损失37.0%,22.2%和28.9%左右,减少韭黄硝酸盐含量13.6%左右。减施20%氮肥后配施双氰胺,可以增加韭黄产量8.7%左右,分别减少淋溶、侧渗、径流水氮损失58.4%,59.7%和17.1%左右,减少韭黄硝酸盐含量24.8%。因此,该技术对减少滇池北岸韭黄地氮素流失和降低韭黄硝酸盐含量具有重要实践意义和推广价值。
张瑞杰 +5 more
doaj
Shuitu Baochi Xuebao, 2022 研究植茶对土壤团聚体全氮和矿质氮的影响可为茶园土壤合理施用氮肥提供理论依据。通过野外调查和室内分析, 研究不同茶树品种(福鼎大白、川茶3号、川农黄芽早和川沐217)对土壤团聚体中全氮和矿质氮含量的影响。结果表明: (1)各植茶品种土壤团聚体含量随粒径减小呈先减小后增大的变化趋势, >2 mm粒径团聚体含量显著高于其他粒径团聚体, 其含量约占总量的38.32%~66.26%。(2)各植茶品种土壤全氮含量均随团聚体粒径的减小呈先减小后平稳的趋势, 而铵态氮和硝态氮的变化趋势则相反。(3 ...
于子涵 +3 more
doaj
Environmental racism and air pollution: Pre and post the COVID‐19 economic shutdown
Review of Policy Research, Volume 42, Issue 4, Page 949-981, July 2025.Abstract Decades of research demonstrates that minoritized groups are disproportionately affected by swathes of harmful pollutants, including air pollution, even controlling for low income. Would significantly reducing individual car traffic help reduce the EJ gap?
Heather E. Campbell +3 more
wiley +1 more source
Functional Ecology, Volume 39, Issue 5, Page 1274-1287, May 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Interactions between plants and soil microorganisms in the rhizosphere are vital for maintaining the nutrient cycle and stability of terrestrial ecosystems. Nitrogen, closely related to carbon (C) cycling and ecosystem productivity, undergoes transformation by soil ...
Ru Wang +9 more
wiley +1 more source