Results 21 to 30 of about 6,048 (156)

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

The effects of drought stress on the stoichiometric characteristics of C, N, and P in Pinus yunnanensis seedlings [PDF]

open access: yes
[Objective] This study aims to investigate the effects of drought stress on the distribution of carbon (C), nitrogen (N), and phosphorus (P) elements and stoichiometry in organs of Pinus yunnanensis seedlings, and to provide a theoretical basis for ...
CHEN Gang   +5 more
core   +1 more source

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

水肥配合对夏玉米养分吸收及根系活性的影响

open access: yesShuitu Baochi Xuebao, 2011
研究不同水肥条件对夏玉米养分吸收及根系活性的影响,解释水肥配合下夏玉米养分吸收规律和根系活跃吸收面积的变化特征.采用管栽试验,研究不同水肥条件对夏玉米不同生育期养分积累特征和根系吸收面积的影响.夏玉米干物质积累量与植株全量N、K的积累量变化趋势基本一致,植株内全量N、K积累量以拔节-大喇叭口阶段最多,P素积累主要集中于抽雄-成熟阶段.不同生育期根系活跃吸收面积与总吸收面积变化均呈单峰式曲线,峰值分别出现在大喇叭口期和抽雄期.在玉米生长季水肥充足条件下 ...
李秀芳, 李淑文, 和亮, 文宏达
doaj  

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

Tannins and nutrients dynamics of alien mangrove species Sonneratia apetala [PDF]

open access: yes, 2008
单宁是植物体内重要的次生代谢物质,对植物的抗逆性具有重要作用。而氮磷是限制植物初级生产力的重要营养元素。无瓣海桑(Sonneratiaapetala)作为红树植物外来种,引种到我国后得到大面积种植。本文以广东湛江高桥无瓣海桑林为研究对象,分析了不同组分的单宁含量及其叶片单宁的季节动态,利用MALDI-TOFMS对成熟叶片纯化单宁的化学结构进行分析,并探讨了无瓣海桑叶片氮、磷含量的季节动态以及单宁和氮之间的相关性。研究结果表明: 1.无瓣海桑不同组分(叶片、树皮、根、果)总酚含量在127.73±3.80 ...
张慧
core  

水磷耦合烤烟养分吸收分配规律研究

open access: yesShuitu Baochi Xuebao, 2019
为探究烤烟适宜的水磷耦合模式及其对氮、磷、钾养分吸收积累的影响。采用田间小区试验,试验设置3种灌水水平和施磷水平,分别为低水(W1:0.50 L/株)、中水(W2:1.00 L/株)、高水(W3:2.00 L/株)和低磷(P1:32 kg/hm2)、中磷(P2:64 kg/hm2)、高磷(P3:96 kg/hm2),研究了不同施磷量和灌水量条件下烤烟对氮磷钾养分吸收积累的影响。结果表明:施磷量相同时,灌水处理能够明显增加烟株对氮、磷、钾养分的吸收积累量,表现为:W3Pi > W2Pi > W1Pi ...
汤宏   +6 more
doaj  

‘How Does Living in Institution Impact Young Lives?’—Insights From Young People in Ci'aiyuan

open access: yesChildren &Society, Volume 39, Issue 4, Page 760-769, July 2025.
ABSTRACT Institutional care often carries a negative reputation due to its perceived adverse effects on children and young people. However, it remains a significant form of alternative care in China. In Xiangxi, childcare institutions, known as ci'aiyuan, have been further expanding by involving wider populations in recent years.
Shian Yin
wiley   +1 more source

Allelopathy and nutrient conservation strategies of invasive plant Lantana camara [PDF]

open access: yes, 2012
马缨丹(Lantanacamara)为马鞭草科半常绿灌木,原产南美亚马逊河流域。马缨丹于1645年作为一种观赏花卉由荷兰引入台湾,后逸为野生,现广布于我国的广东、广西、海南、云南、福建、台湾、香港和澳门等省区。由于马缨丹具有极强的适应能力和繁殖能力,它已被列为世界10种最有害的杂草之一。本研究以厦门大学后山的马缨丹为研究对象,研究了不同浓度马缨丹叶片及根系水浸液对4种农作物绿豆(Vignaradiata)、油菜(Brassicacampestris)、小麦(Triticumaestivum)和水稻 ...
卢向荣
core  

Effects of Biostimulants on the Growth of Wax Gourd Seedlings [PDF]

open access: yes
【Objective】The study aims to identify biostimulants conducive to the cultivation of robust wax gourd seedlings and to determine the optimal concentration for their application.【Method】The black wax gourd 'Tiezhu 2' was used as experimental material, the ...
Baige ZHANG   +8 more
core   +1 more source

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