Results 21 to 30 of about 2,604 (91)

Prolonged Nutrient Enrichment Slows the Recovery of Biodiversity and Productivity After Its Cessation

open access: yesGlobal Change Biology, Volume 32, Issue 7, July 2026.
Grassland recovery following nutrient cessation is asymmetric and strongly shaped by nutrient enrichment history. Higher nutrient addition rates and longer enrichment duration caused larger departures from control conditions, with biomass recovering more rapidly than species richness over decadal timescales.
Miao He   +8 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

Reoccurrence of Dust Storms in South Asia and Their Implications for Vegetation Health 南亚沙尘暴的再次出现及其对植被健康的影响

open access: yesIntegrative Conservation, Volume 4, Issue 3, Page 362-380, September 2025.
Occurrences of dust storms and long‐distance movement of dust across landscapes is constantly increasing in south Asia. This dust is expected to have profound impact on vegetation health and sustainability as dust may contribute to nutrient budgets of the forest ecosystems, while it could impart various stresses to the plants.
Shree P. Pandey   +2 more
wiley   +1 more source

白洋淀沉积物-沉水植物-水系统氮、磷分布特征

open access: yesShuitu Baochi Xuebao, 2017
通过2015年4月份和9月份对白洋淀西部纳污区、中部生活水产养殖区以及淀边缘区优势沉水植物及对应沉积物和水中总氮(TN)、总磷(TP)含量测定,分析白洋淀水体氮磷营养分布规律,明确不同沉水植物对自然水体氮磷富集能力,为应用沉水植物修复富营养化水体提供理论依据。结果表明:白洋淀水体TN和TP浓度分别为0.77~13.65 mg/L和0.05~1.21 mg/L。受唐河和府河输入影响,纳污区水中TN和TP浓度最高,为IV~劣V类水,生活水产养殖区和淀边缘区水体TN和TP浓度差异均不显著(p>0.05 ...
王亚琼   +7 more
doaj  

Altered nutrient cycling functionality in seagrass meadows under a simulated future marine heatwave event

open access: yesNew Phytologist, Volume 247, Issue 6, Page 2616-2629, September 2025.
Summary Seagrasses are important contributors to environmental nutrient cycling in marine ecosystems and can improve water quality by absorbing excess nitrogen (N). However, these ecosystems are vulnerable to human‐mediated pressures, including marine heatwaves (MHWs), particularly those of longer duration. We performed an experiment simulating a 30‐d,
Alissa V. Bass   +5 more
wiley   +1 more source

Using explainable machine learning methods to evaluate vulnerability and restoration potential of ecosystem state transitions

open access: yesConservation Biology, Volume 38, Issue 3, June 2024.
Abstract Ecosystem state transitions can be ecologically devastating or be a restoration success. State transitions are common within aquatic systems worldwide, especially considering human‐mediated changes to land use and water use. We created a transferable conceptual framework to enable multiscale assessments of state resilience and early warnings ...
John T. Delaney, Danelle M. Larson
wiley   +1 more source

Evaluating plant lineage losses and gains in temperate forest understories: a phylogenetic perspective on climate change and nitrogen deposition

open access: yesNew Phytologist, Volume 241, Issue 5, Page 2287-2299, March 2024.
Summary Global change has accelerated local species extinctions and colonizations, often resulting in losses and gains of evolutionary lineages with unique features. Do these losses and gains occur randomly across the phylogeny? We quantified: temporal changes in plant phylogenetic diversity (PD); and the phylogenetic relatedness (PR) of lost and ...
Josep Padullés Cubino   +33 more
wiley   +1 more source

沉陷废弃地新型复垦基质主要化学性质研究

open access: yesShuitu Baochi Xuebao, 2005
煤炭开采导致大量农田受损、地表沉陷、土地荒芜及水土流失,然而目前广泛采用的粉煤灰充填后表层覆土的复垦形式,虽然取得了一定效果,但矿区覆土来源的缺乏严重影响着复垦的进度。本研究利用粉煤灰分别与污泥、酒糟以4∶1的比例组配成新型复垦基质,进行了种植植物的试验研究。通过对基质主要化学性质变化的研究表明:有机质、速效养分含量经过灌溉和雨水的淋洗仍保持较高的水平,盐分含量也明显下降,重金属元素除Cd外均未超过土壤环境质量指标值二级标准,基质理化性状能够满足植物生长的要求。这不仅促进了废弃物的资源化利用 ...
王晓玲 冯永军 李芬 康惊涛
doaj   +2 more sources

台湾海峡不同环境介质中藻毒素的污染现状分析

open access: yesHaiyang yu huzhao
藻毒素是由海洋微藻产生的一类代谢产物,广泛分布于不同环境介质中,潜在威胁海洋生物与人类健康,以及水产养殖业的持续发展。台湾海峡渔业资源丰富,生物种类繁多,是我国重要的渔业养殖区。为进一步了解台湾海峡不同环境介质中常见藻毒素的污染现状,于2022年4月采集了浮游植物、海水和沉积物样品,应用液相色谱-串联质谱法(LC-MS/MS)进行分析。结果表明,浮游植物样品中软骨藻酸(domoic acid, DA)、大田软海绵酸(okadaic acid, OA)和鳍藻毒素-1(dinophysistoxin-1 ...
李 东岳   +5 more
doaj   +1 more source

高浓度餐厨垃圾压榨液处理工程设计实例

open access: yesGongye shui chuli, 2023
某餐厨垃圾压榨液废水处理项目设计处理规模为240 m3/d。为确保项目废水达标排放,在分析餐厨垃圾压榨液原水水质的基础上,进行了工艺预选论证与组合工艺设计。设计采用隔油沉渣+混凝沉淀+气浮为前期预处理单元,利用VABR厌氧+二级A/O+MBR系统作为生化处理单元,最后利用臭氧催化氧化+混凝沉淀并联合活性炭过滤塔作为深度处理单元。项目跟踪监测运行结果表明,工艺出水COD为80~120 mg/L、BOD5<5 mg/L、NH3-N为22~36 mg/L、TN为32~57 mg/L、TP<5 mg/
张军, 周凯, 李治阳, 聂永山
doaj   +2 more sources

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