Results 31 to 40 of about 833 (154)

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

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

Studies on Propagation and Diffusion Properties of Sonneratiaapetala in Latitude Gradient [PDF]

open access: yes, 2014
摘要 无瓣海桑是1985年从孟加拉国引入中国的,由于生长快速,目前已成为红树林恢复造林的首选树种,在中国东南沿海各省广泛种植。基于对无瓣海桑的潜在入侵力的担忧,本研究在我国东南沿海各红树林区,选择海南三亚、海口,广东雷州、湛江、电白、深圳和汕头,福建漳浦、厦门和泉港等12个不同纬度的样点,对无瓣海桑的繁殖和漂浮特性进行研究,探讨入侵潜力在纬度上的差异。研究结果表明: 1.同龄无瓣海桑繁殖体数量与纬度呈极显著负相关关系(pAbstract Sonneratiaapetala, a popular ...
文玉叶
core  

Evaluation of Nutritional Value of Four High-Sugar Ryegrass Varieties on the Loess Plateau under Different Cutting Methods [PDF]

open access: yes
To explore the effects of cutting methods on the nutritional value of different high-sugar ryegrass, four high-sugar ryegrass varieties, namely ‘AberStar’ ‘AberMagic’ ‘AberAvon’ and ‘Premium’ were planted in the Loess Plateau.
Chang, Sheng Hua   +8 more
core   +1 more source

Multiple global change factors alter the scaling of nitrogen to phosphorus in alpine plants

open access: yesFunctional 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

氮添加和凋落物增减对华西雨屏区常绿阔叶林土壤团聚体及其碳氮的影响

open access: yesShuitu Baochi Xuebao, 2022
大气氮沉降可通过改变土壤氮素可利用性(直接影响)和改变凋落物输入量(间接影响)对森林土壤碳氮动态产生影响。土壤团聚体是森林表层土壤最具代表性的基本结构单元, 对于稳定贮存有机碳氮具有重要意义。通过氮添加和凋落物增减试验设计, 探索氮添加和凋落物增减对土壤团聚体及其碳氮组分的影响。结果表明: (1)凋落物增加(+L)和减少(-L)都使A层土壤(0-10 cm)以及各粒径团聚体的TOC(有机碳)、TN(全氮)含量显著提高, 使pH显著降低。氮添加使B层土壤(10-30 cm)pH显著降低, 表现为高氮(HN)
吕思扬   +5 more
doaj  

Effects of Trifolium repens invasion on functional traits and turf quality of Poa pratensis [PDF]

open access: yes
[Objective] Invasion of Trifolium repens occupies the living space of turfgrasses and has been seriously threatening the quality and function of turfs. Examining the impact of T .
BAI Xiaoming   +5 more
core   +1 more source

World‐wide impacts of climate change and nitrogen deposition on vegetation structure, composition, and functioning of shrublands

open access: yesNew Phytologist, Volume 247, Issue 3, Page 1117-1128, August 2025.
Summary Environmental changes and their effects are among the most pressing topics of today's ecological research. Shrublands, although widespread across the globe, remain understudied in this respect. We conducted a global meta‐analysis of 81 shrubland sites subjected to experimental warming, shifts in precipitation (e.g.
Daijun Liu   +11 more
wiley   +1 more source

黄土高原人工油松林土壤碳氮对短期氮添加的响应

open access: yesShuitu Baochi Xuebao, 2018
为了更好地理解土壤碳氮元素对氮添加的响应,通过短期原位模拟氮沉降试验,揭示黄土高原子午岭人工油松(Pinus tabulaeformis Carrière)林土壤碳氮对外源氮添加的响应过程和机制。从2015—2016年设置4个氮添加水平,分别为对照(0 kg/(hm2·a),N0)、低氮(50 kg/(hm2·a),N50)、中氮(100 kg/(hm2·a),N100)和高氮(200 kg/(hm2·a),N200),研究人工油松林地不同深度土层土壤有机碳和全氮以及土壤碳氮储量对模拟氮添加的响应 ...
陈磊   +4 more
doaj  

Proteomic reaserch of Alexandrium tamarense under various nitrogen nutrient conditions [PDF]

open access: yes, 2010
塔玛亚历山大藻(Alexandriumtamarense)是一种广泛分布的有毒赤潮生物,不仅能形成大规模的赤潮,还可合成和生产麻痹性毒素,严重威胁到海洋生态系统的稳定、海洋生物资源的可持续发展和人类健康及生命财产安全。 本文以A.tamarenseCI01为研究对象,研究不同形态、不同浓度氮营养盐对细胞生长和毒素生产的影响;并运用蛋白质组学技术,比较研究了不同氮处理条件和不同生长期A.tamarenseCI01细胞蛋白质组的差异表达,确认和鉴定了一批差异表达蛋白,并探讨这些蛋白在A ...
李谷静
core  

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