Results 1 to 10 of about 727,207 (148)
Shuitu Baochi Xuebao, 2007 对黄土丘陵区土壤有机碳在不同粒级团聚体中的分布特征及其对植被恢复的响应进行了研究。结果表明:(1)黄土丘陵区不同植被覆盖条件下,土壤有机碳的分布具有一定的表聚性,0~20 cm土层中有机碳的含量均高于20~40 cm中有机碳的含量,不同植被群落下有机碳的含量大小为:大针茅群落>长芒草群落>铁杆蒿群落>百里香群落;(2)同一深度土壤各粒级团聚体中有机碳的分布特征是:0.5~0.25 mm与1~0.5 mm两个粒级中有机碳的含量最高,>1 mm的团聚体中有机碳的含量有随粒级增大而减小的趋势;(3 ...
安韶山, 张玄, 张扬, 郑粉莉
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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
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Journal of Ecology, Volume 110, Issue 1, Page 97-116, January 2022., 2022 In the BEF‐China experiment, metabolomics samples were collected from four different species and three organs (a). The metabolomes are species and organ specific (b), and the metabolome specificity is attributed to different chemical classes (c). Tree species diversity affects the metabolome composition (d), but more controlled interaction experiments ...
Alexander Weinhold +7 more
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Shuitu Baochi Xuebao, 2022 为了探明西南地区长期不同施肥处理对稻麦轮作紫色土有机碳组分和碳循环相关水解酶活性的影响,依托重庆北碚29年稻麦轮作紫色土长期定位试验,选取不施肥(CK)、单施氮磷钾肥(NPK)、有机无机配施(NPKM)、秸秆还田配施含氯化肥[(NPK)ClS]和秸秆还田配施无机肥(NPKS)5个处理,测定土壤各组分有机碳含量及与土壤碳循环相关的水解酶活性并分析两者间的相关性。结果表明:长期施肥(NPK、NPKM和NPKS)显著提高土壤总有机碳和不同组分有机碳含量,各施肥处理土壤总有机碳含量较CK提升11.6%~40.2%
徐文静 +7 more
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Shuitu Baochi Xuebao, 2004 在我国亚热带采集了常绿阔叶林、马尾松林、杉木林和毛竹林土壤,分析了土壤总有机碳和水溶性有机碳含量。结果表明:土壤总有机碳含量常绿阔叶林和毛竹林显著高于杉木林和马尾松林。土壤水溶性有机碳含量毛竹林显著高于杉木林,极显著高于马尾松林,阔叶林和杉木林也显著高于马尾松林。水溶性有机碳占总有机碳比率以杉木林最高,达1 26%(25℃)和1 82%(100℃),马尾松林最低,仅0 78%(25℃)和1 30%(100℃)。马尾松林、杉木林和毛竹林土壤水溶性有机碳与土壤总有机碳含量间的相关性均达显著水平 ...
徐秋芳 姜培坤
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Cu‐Based Catalysts Design Toward Electrochemical CO2 Reduction to Valuable Multi‐Carbons Products
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Electrochemical reduction of CO2 to multi‐carbon products (e.g., C2+, ethene, ethanol, etc.) not only effectively decreases the CO2 concentration in atmosphere but also shows great potential economic benefits due to these exploitable value‐added products. The Cu‐based catalysts have caught much attention in CO2 electroreduction due to the good
Li‐Qing Li +5 more
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Shuitu Baochi Xuebao, 2020 基于湖北省神农架国家公园大九湖亚高山典型泥炭湿地土壤总有机碳、总氮、总磷、铵态氮、有效磷、速效钾养分含量进行时间（春、夏、秋、冬）和空间（表层15 cm、中层30 cm、底层45 cm）特征分析。结果表明：（1）该区域土壤各样分以及pH、Eh、容重均满足正态分布，其中有效磷、速效钾为中强变异性，均值为31.33，71.2 mg/kg，总有机碳、总磷、铵态氮、pH、Eh、容重为中弱变异性，均值为419.2，1.56 g/kg和67.57 mg/kg，5.33，104.4，0.155 g/kg ...
斯南雍茜 +7 more
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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
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Functional 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
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Shuitu Baochi Xuebao, 2006 主要分析不同森林植被下有机碳的分解动态和土壤碳库各组分大小、周转时间。结果表明：土壤样品培养90天，CO2累计释放量表层大致为1723～5065mg／kg、下层大致为178～642mg／kg。分解速率总的趋势是前期快，后期慢，表层明显大于下层。大小顺序为：冷杉林〉针阔混交林和阔叶林〉针叶林。在不同植被下的表层和下层土壤中，活性碳占总有机碳的0．54％～1．67％，0．45％～5．48％．平均驻留时间为11～56天、60～88天；缓效性碳占总有机碳的23．0％～63．3％，33．2％～72．2 ...
邵月红 +3 more
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