Results 21 to 30 of about 803 (154)

Effects of Water and Nitrogen Management on Soil Nitrogen Metabolism Enzyme Activity and Wheat Nitrogen Utilization [PDF]

open access: yes
[Objective] To explore the effects of water and nitrogen management on soil nitrogen metabolism enzyme activity and wheat nitrogen utilization under irrigation based on soil moisture.
CUI Zhenkun   +4 more
core   +1 more source

Nitrogen deposition does not exacerbate phosphorus limitation of rhizosphere microbes in subalpine forests

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The stoichiometric imbalance caused by nitrogen (N) deposition typically exacerbates phosphorus (P) limitation in plants. However, it remains unclear whether this effect extends to soil microbes, particularly those in the rhizosphere.
Jipeng Wang   +5 more
wiley   +1 more source

Fabricating Highly Efficient Ternary Mn–CeOx/Co3O4 Catalysts for Low Temperature Thermal Desorption of Persistent Perfluorooctanoic Acid in Soil

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Developing efficient catalytic thermal desorption systems is of great significance in the field of sustainable soil remediation. Herein, novel Mn–Ce solid solution modified Co3O4 nanocrystals were successfully prepared for the removal of perfluorooctanoic acid (PFOA) in soil.
Yu‐Hao Liu   +8 more
wiley   +1 more source

Gradient distributions of nitrogen and organic carbon in the soils from inland to tidal flat in the Yellow River Delta [PDF]

open access: yes, 2014
黄河三角洲是我国典型的通过黄河冲积泥沙填海造陆形成的近代沉积区。区域受到黄河冲积、沉积等自然过程和农业耕种熟化等人类活动的双重影响。本研究通过在黄河三角洲地区内陆到河口海湾不同距离采集典型土壤类型剖面发生层样品,探讨土壤有机碳、总氮等生源要素的空间分布规律,为阐明我国典型海岸带地区陆源碳、氮的输送及循环特征提供基础依据。研究结果表明,黄河三角洲内陆与河口地区呈现出完全不同的土壤碳、氮分布规律。表层土壤碳、氮含量在黄河沿岸及三角洲南部均表现出由陆向海逐级递减的空间分布特征 ...
李远   +4 more
core   +1 more source

Research Progress of Nitrogen Leaching in Farmland Soil [PDF]

open access: yes, 2014
对农田土壤氮素淋失的相关研究进行综述和总结是研究农业面源氮素污染的一个至关重要的前提。本文从土壤氮素渗漏淋失形态和迁移机理、氮素渗漏淋失的研究方法和影响土壤氮素渗漏淋失的因素三方面进行了详细的分析介绍,概述了近年来国内外农田氮素渗漏淋失的研究进展和研究成果,并在此基础上展望了未来氮素淋失研究工作的重点。研究结论对农田土壤的水肥管理措施及浅层地下水硝氮污染的减缓有一定的理论和借鉴意义Reviewing and summarizing the related research of farmland ...
朱木兰, 李青松, 王吉苹
core  

Factors influencing fine roots decomposition rates in response to nitrogen addition vary across root characteristics

open access: yesFunctional Ecology, Volume 39, Issue 12, Page 3504-3516, December 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Nitrogen (N) deposition strongly affects litter decomposition and nutrient release, thereby reshaping carbon cycling in terrestrial ecosystems. Although most studies have focused on above‐ground litter, the effects of N addition on fine root decomposition and their ...
Yuneng Wang   +5 more
wiley   +1 more source

Nitrogen‐transforming microorganisms potentially facilitate the invasion of Moso bamboo (Phyllostachys edulis) into evergreen broadleaf forests

open access: yesFunctional 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

Simulation on Soil Carbon, Nitrogen Cycles and Output Characteristics at Banana Fields, Southeast China [PDF]

open access: yes, 2011
土壤C、N循环是农业生态系统最基本的生态过程,了解土壤C、N循环是研究陆地生态系统C、N循环的重要前提。本文以南靖县五川流域的一个小流域为研究区域,选取施肥量高、面积大的种植香蕉土地利用类型为例,采取模型模拟的方法,应用NCSWAP模型模拟了较长时间尺度下(1998~2007年)土壤C、N各种循环过程及输出特征,对可能影响C、N循环的管理措施因素进行情景模拟分析,最后对农业生产和管理环节提出建设性的措施,取得了如下研究成果: (1)对种植香蕉土壤的NO3--N和SOC含量季节性变化进行了验证 ...
黄虹
core  

Tree mycorrhizal associations regulate relationships between plant and microbial communities and soil organic carbon stocks at local scales in a temperate forest

open access: yesFunctional Ecology, Volume 39, Issue 6, Page 1550-1566, June 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Forests store substantial amounts of soil organic carbon (SOC), but SOC stocks differ strongly between forest ecosystems dominated by arbuscular mycorrhizal (AM) or ectomycorrhizal (EcM) fungi.
Mengxu Zhang   +10 more
wiley   +1 more source

Study on soil denitrification in an agricultural catchment in southeasten area of Fujian province [PDF]

open access: yes, 2007
反硝化是一个重要的生物化学过程,是氮生物地球化学循环的重要环节。在维持流域、乃至全球氮素平衡方面发挥着重要作用。土壤反硝化的中间产物之一的N2O气体,是一种温室气体,对大气臭氧层具有较大的破坏作用。另外,反硝化还影响其他重要的生物地球化学过程。因此,反硝化研究具有重要的现实意义。 随着经济的高速发展、自然资源的不断消耗和生态环境的不断恶化,全球环境问题日益突出,温室效应已十分明显。作为温室气体之一的N2O对全球气候变化有着重要的影响。目前,有关N2O的研究已成为温室效应与全球气候变化研究的焦点之一 ...
徐玉裕
core  

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