Results 11 to 20 of about 2,799 (99)

Factors that shape large‐scale gradients in clonality

open access: yesJournal of Biogeography, Volume 50, Issue 5, Page 827-837, May 2023., 2023
Abstract Aim Many plant species reproduce clonally. However, ecologists still have much to learn about the factors that shape large‐scale patterns in plant clonal growth and reproduction, especially in the southern hemisphere. We addressed this knowledge gap by quantifying relationships between reproductive mode and a suite of plant characteristics and
Hongxiang Zhang   +4 more
wiley   +1 more source

Environment regimes play an important role in structuring trait‐ and taxonomy‐based temporal beta diversity of riverine diatoms

open access: yesJournal of Ecology, Volume 110, Issue 6, Page 1442-1454, June 2022., 2022
Our study provides a new perspective into temporal beta diversity of daily riverine diatom communities. The results highlight the importance of taxonomic and functional temporal beta diversity and its decomposition, which is co‐driven by hydrology, nutrient and metal ions. We provide further evidence that environment regimes (e.g.
Naicheng Wu   +5 more
wiley   +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

Electronic Modulation of CoNi Nanoparticles by N‐Doped Carbon for Efficient Lignin Hydrogenolysis to Aromatic Monomers

open access: yesRare Metals, Volume 45, Issue 3, March 2026.
ABSTRACT Cost‐effective and efficient non‐noble‐metal catalysts for selective lignin hydrogenolysis remain elusive, representing a significant challenge in biorefinery. Here, we prepared a nitrogen‐doped carbon supported CoNi bimetallic catalyst, which was successfully derived from zeolitic imidazolate framework (ZIF) via high‐temperature pyrolysis ...
Xingwei Luo   +3 more
wiley   +1 more source

High nitrogen enrichment buffers plant photosynthesis against herbivory damage

open access: yesFunctional Ecology, Volume 40, Issue 1, Page 229-238, January 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Herbivorous insects and nitrogen deposition are key drivers of ecosystem productivity under global change. However, their combined effects on plant photosynthesis, particularly during insect outbreaks, remain poorly understood in natural ecosystems.
Yongqiang Zhang   +6 more
wiley   +1 more source

Trait‐Mediated Competition for Light Underpins Plant Diversity Loss Under Eutrophication

open access: yesGlobal 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

脲醛缓释肥不同配比对小麦生长及土壤氮素养分的影响

open access: yesShuitu Baochi Xuebao, 2017
在黄淮海地区冬小麦中高产田采用小区试验,以普通尿素基施、普通尿素基施加追施作对比,研究脲醛氮占总氮30%,40%,50%,60%,70%的不同脲醛缓释掺混肥在田间的氮素养分释放特征,以及对土壤氮素养分、小麦产量、氮素利用率及经济效益的影响,探明合理施用脲醛缓释肥最优氮素配比,以达到增加产量、节约资源、增加经济效益的目的。结果表明:脲醛掺混肥氮素释放量在小麦生育进程中呈现高低再高低的变化过程,脲醛氮占总氮40%或50%最有利于土壤氮素供应,脲醛氮所占比例过大或过小,都不利于小麦整个生长期氮素供应 ...
周华敏   +5 more
doaj  

施γ-聚谷氨酸对桃树生长发育和

open access: yesShuitu Baochi Xuebao, 2020
以1年生桃树盆栽实生苗为试材,底肥为尿素3 g(其中15N标记0.4 g)、磷酸二氢钾3 g,设CK为对照,T1、T2、T3分别添加γ-PGA 10,80,150 mg,探究不同浓度γ-聚谷氨酸(γ-PGA)对桃树植株生长与氮素吸收利用的影响。结果表明:施用中量和高量γ-PGA能显著提高土壤脲酶与过氧化氢酶活性以及土壤碱解氮含量;施用中、高量γ-PGA能促进桃实生苗根系生长,尤其是细根的生长。与对照相比,施用中量γ-PGA桃实生苗根系总长度、分支数、根尖数、交叉数和根系总表面积分别增加51.95%,40.
鲍聪聪, 肖元松, 彭福田
doaj  

减氮配施缓释氮肥对棉田土壤酶活性和氮素吸收利用的影响

open access: yesShuitu Baochi Xuebao, 2022
为探明减氮配施缓释氮肥对棉田土壤酶活性和氮素吸收利用的影响,通过试验研究减氮、配施不同比例缓释氮肥对棉花土壤理化性质、酶活性、无机氮含量、氮肥利用率及棉花产量的影响。试验选用"新陆早64号"棉花品种,设置2种施氮方式,分别为常规全施尿素(T2)和缓释氮肥与尿素不同比例配施(US),配施处理按照施氮量设3个水平,分别为不减氮U0.8S0.2(T3)、U0.6S0.4(T4),减氮20% U0.6S0.2(T5)、U0.4S0.4(T6),减氮40% U0.4S0.2(T7)、U0.2S0.4(T8 ...
邱悦   +5 more
doaj  

施氮对小麦产量和氮素径流损失及氮肥投入阈值的研究

open access: yesShuitu Baochi Xuebao, 2018
为明确巢湖流域小麦季氮肥投入阈值,在连续3年田间试验条件下,研究了(2012—2014年)不同氮肥水平下(N0、N1、N2、N3、N4、N5分别为0,157.5,210.0,262.5,310.0,420.0 kg/hm2)小麦产量、植株氮素积累量、氮肥利用率、土壤无机氮残留量(0—20 cm)及氮素径流流失;同时,利用回归方程模型对其间的相关关系进行拟合。结果表明:(1)与不施氮肥相比,施用氮肥可不同程度提高小麦产量,其中以N3处理增加的比例最大,为64.8%。利用二次函数分析,当施用氮肥超过290 ...
徐云连   +5 more
doaj  

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