Results 31 to 40 of about 2,463 (159)
Shuitu Baochi Xuebao, 2006 对若尔盖高寒湿地沼泽土和泥炭土的有机碳（TOC）和活性有机碳（LC）沿土壤剖面的分布特征研究表明，沼泽土的有机碳和全氮（TN）古量整体上从表层向下呈现下降趋势．中间在16～18cm处出现一个升高点，与当时的有机质来源和沉积环境有关。泥炭土有机碳沿土壤剖面并没有呈现同样的下降趋势．而是从表层向下至22cm呈现升高趋势，22cm向下才呈现下降趋势。全氮含量与有机碳含量的分布特征不同。在表层o～10cm古量较高，向下含量减小。沼泽土活性有机碳沿土壤剖面整体呈现下降趋势，变化于2．4～13．6mg／g ...
高俊琴, 欧阳华, 白军红
doaj
, 2019 深海碳库成因之谜气候变化是当今最大的全球性环境问题。人类活动导致大气二氧化碳（CO2）持续升高是加剧气候变化的主因。海洋是地球上最大的碳库,吸收了工业革命以来人类活动排放CO2的三分之一,是全球气候变化的"调节器"。海洋碳库调节气候变化的主要组分是溶解在水里的有机碳（DOC）。一方面 ...
焦念志
core
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Sodium‐ion capacitors (SICs) offer high energy and power density with long cycle life, but developing kinetically compatible electrodes remains challenging. This work developed a simple and sustainable strategy to synthesize homologous carbon electrodes from the inner shells of durian husks (ISDH) for high‐performance SICs.
De‐Bing Yan +7 more
wiley +1 more source
Shuitu Baochi Xuebao, 2008 通过8年田间定位试验,研究了不同施肥制度下褐土及其微团聚体有机碳活性变化规律。结果表明,褐土微团聚体有机碳活性随粒级的减小而增强,不同施肥制度下土壤微团聚体组成变化各异,不施肥主要是由于10 ...
韩志卿 +6 more
doaj
Shuitu Baochi Xuebao, 2022 土地石漠化是中国西南喀斯特地区的重大生态问题,石漠化治理引发土壤碳转变并对陆地碳循环产生影响。然而,石漠化地区水土保持措施对土壤有机碳的影响机制还不明确。选取典型石漠化区梯田嵌套鱼鳞坑(NL)、鱼鳞坑(FSP)、梯田(TR) 3种水土保持措施作为研究对象,以无任何水土保持措施的退耕还林地(CK)作为对照,研究不同水土保持措施土壤有机碳含量分布规律。结果表明:鱼鳞坑土壤有机碳含量分别是梯田嵌套鱼鳞坑和梯田的1.4,6.2倍,有机碳储量分别比梯田嵌套鱼鳞坑和梯田提高30.78%和444.44 ...
李金垚 +5 more
doaj
Storages and origins of sediment organic carbon in Kandelia candel mangroves at different restoration stages in Jiulongjiang Estuary [PDF]
, 2012 在福建九龙江口（龙海市浮宫镇草埔头）选取12yr生（代表恢复早期）、24yr生（代表恢复中期）和48yr生（代表恢复晚期）人工秋茄（Kandeliacandel）红树林，分析植被发育对底质中有机碳的储量和来源的影响。主要结果如下： （1）不同恢复阶段秋茄红树林底质有机碳储量 底质有机碳和活性有机碳均随植被恢复进程而总体呈增加的趋势，底质l00cm深有机碳储量平均值为130.3~169.9t•hm-2，有机碳含量平均值为15.9~19.2g•kg-1，易氧化态碳（EOC ...
逄柏鹏
core
Rare Metals, Volume 45, Issue 1, January 2026.ABSTRACT Carbon dots (CDs) have emerged as promising modifiers for boosting the photocatalytic H2O2 production, yet their precise role remains to be quantitatively elucidated. Herein, S, N‐codoped lignin‐derived carbon dots (SN‐LCDs) and lignin‐derived carbon dots (LCDs) were synthesized and employed to modify TiO2.
Bin‐Peng Zhang +6 more
wiley +1 more source
Lithology modulates soil priming effect via resource limitations and bacterial community structure
Functional Ecology, Volume 40, Issue 1, Page 176-190, January 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract The soil priming effect (PE), triggered by root exudate inputs that stimulates microbial activity and drives significant soil carbon (C) losses in terrestrial ecosystems.
Xinyu Hou +4 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2003 在长、短碳链表面活性剂总量恒定条件下制备了一系列双阳离子有机膨润土,研究了其对水中苯胺、对硝基苯酚、2,4二氯酚的吸附行为;结果表明双阳离子有机膨润土对有机物的分配系数(Kd)与有机碳含量(foc)、辛醇水分配系数(lgKow)成线性正相关,与溶解度(lgS)成线性负相关.通过数学模拟,首次描述了表面吸附和分配作用两种吸附机制的相对贡献率和改性表面活性剂配比的关系;结果表明双阳离子有机膨润土对水中有机物两种吸附机制的主导地位与有机物本身性质有关,其主导作用发生变化的拐点与长碳链表面活性剂所占比重相关.
SHENXue-you(沈学优) +2 more
doaj +1 more source
Veterinary Dermatology, Volume 36, Issue 3, Page 302-313, June 2025.Background – Malassezia pachydermatis (MP) is implicated in severe dermatitis and otitis externa (OE) of companion animals and recently gained attention for its increasing resistance to azole compounds. For this reason, developing novel therapeutic strategies is of great interest. In a previous work, we used reference yeast isolates to evaluate several
Costanza Spadini +11 more
wiley +1 more source