Results 31 to 40 of about 1,040 (165)
Functional Ecology, Volume 39, Issue 6, Page 1550-1566, June 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Forests store substantial amounts of soil organic carbon (SOC), but SOC stocks differ strongly between forest ecosystems dominated by arbuscular mycorrhizal (AM) or ectomycorrhizal (EcM) fungi.
Mengxu Zhang +10 more
wiley +1 more source
Some Impacts of Egret Colonies on the Heronry Soils Nutrition and Heavy Metal level [PDF]
, 2009 对厦门白鹭自然保护区鸡屿岛上的鹭类集群营巢地的表层土壤进行测定，比较繁殖前营巢地、繁殖后的营巢地及非营巢地土壤当中的营养元素全氮(N)、全磷(P)、全钾(K)的含量，以及重金属元素铜(Cu)、锌(Zn)、铬(Cr)、镉(Cd)的含量.土壤样品用微波消化法消化，土壤氮用凯氏定氮法测定，土壤磷用钼蓝比色法测定，土壤钾、铜、锌、镉、铬用原子吸收法测定。实验测得，繁殖前营巢地土壤全氮百分含量为0.038±0.006；全磷百分含量为0.086±0.015；全钾百分含量为1.049±0.048 ...
李伟
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Functional Ecology, Volume 39, Issue 5, Page 1274-1287, May 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract Interactions between plants and soil microorganisms in the rhizosphere are vital for maintaining the nutrient cycle and stability of terrestrial ecosystems. Nitrogen, closely related to carbon (C) cycling and ecosystem productivity, undergoes transformation by soil ...
Ru Wang +9 more
wiley +1 more source
Fractal characteristics and related affecting factors of particle size distribution in mangrove soils in Dongzhai Harbor of Hainan [PDF]
, 2008 应用分形理论分析了海南东寨港红树林土壤粒径分布的分形特征及其影响因素,海南东寨港土壤的分形维数为2.302～2.575,分形维数的大小与土壤中的粘粒、盐分、有机质、全氮含量呈显著正相关,外滩红树林土壤的分形维数低于中滩和内滩;随着土壤质地由砂壤土、轻壤土、中壤土、重壤土的变化,分形维数逐渐增大;从陆到海土壤分形维数逐渐减小。群落类型、土壤质地、滩位、含盐量、有机质、全氮含量等是影响海南东寨港红树林土壤分形维数的主要因子。The analysis with fractal theory on the ...
刘美龄, 叶勇, 唐飞龙, 曹长青
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The Impact of Mixed Application of Modified Straw Biochar and Organic Fertilizer on Soil Water Retention and Fertility Maintenance in the Loess Hilly Dry Area [PDF]
[Objective] This study aimed to investigate the effects of different modified corn straw biochars on the water retention and fertilizer conservation capacity of arid loess soil and their effects on crop growth.
CHANG Fangling +5 more
core +1 more source
Evaluation of the Effectiveness of Soil Improvement Measures in Apple Orchards on the Loess Plateau: A Meta-Analysis [PDF]
[Objective] Soil acidification, structure and fertility degradation and poor water-holding capacities are common problems in the apple orchard on the Loess Plateau, effective soil improvement techniques are crucial for enhancing soil quality, and ...
DUAN Shunxia +3 more
core +1 more source
Quantitative classification and sequence of feng-shui forest in coastal zone of Dongshan island in Fujian [PDF]
, 2013 在样地调查的基础上,采用双向指示种分析(TWInSPAn)和趋势对应分析(dCA)对福建东山岛海岸沙地风水林进行数量分类和排序研究。结果表明:调查样地共包含101个物种,分属41科82属,禾本科10种、大戟科9种、菊科8种、茜草科7种和芸香科5种所含物种较多。经TWInSPAn分类,36个样地分为13个聚组,根据其指示种确定为13个群丛。样地dCA和物种dCA排序结果反映了植物群丛与指示种之间的一致关系,两排序轴均具有明确的生态学意义,环境因子影响了风水林植被的分布。Based on the plot ...
卢昌义, 叶功富, 游水生, 高伟
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Shuitu Baochi Xuebao, 2022 通过连续7年田间定位试验,采用2因素试验设计,设置秸秆不还田(CK)、秸秆直接还田(ST)和秸秆炭化还田(BC)3种秸秆还田方式和0(N0),300(N300),450(N450) kg/hm23个施氮(N)量,研究秸秆直接还田和炭化还田配施氮肥对土壤碳氮含量和棉花产量的影响。结果表明:ST和BC处理土壤有机碳含量呈现逐年递增趋势,且BC处理增幅大于ST处理。第7年,在各施氮水平下,ST处理较CK处理土壤有机碳提高33.28%~36.43%,BC处理较CK处理土壤有机碳提高58.56%~63.25 ...
霍启煜 +4 more
doaj
Shuitu Baochi Xuebao, 2006 基于IKONOS高分辨率（1m）卫星遥感图，结合GIS研究了我国高邑、宜兴、金堂、益阳和电白5个人口密集农村地区（每个地区的研究面积为3km^2）土壤全氮、全磷密度和储量差异，以及各地区土壤全氮、全磷密度和储量在不同土地利用方式下的分布。结果表明：土壤全氮储量在5个地区间的大小顺序依次为金堂（1022．4t）〉宜兴（995．2t）〉益阳（920．4t）〉高邑（804．0t）〉电白（632．4t）；土壤全磷大小顺序为宜兴（698．9t）〉高邑（661．3t）〉金堂（618．9t）〉益阳（360．6t ...
焦加国 +3 more
doaj +2 more sources
Shuitu Baochi Xuebao, 2018 研究不同覆盖措施下农田土壤全氮及其活性和半活性组分在作物生长季的动态变化，有助于深入理解农田土壤氮循环过程。基于黄土高原8年春玉米覆盖定位试验，系统分析了土壤全氮、矿质氮、微生物量氮、潜在可矿化氮以及颗粒有机氮在玉米不同生育期的动态特征。试验包括全生育期9 000 kg/hm2秸秆覆盖、全生育期地膜覆盖和不覆盖对照3个处理。结果表明：（1）除硝态氮和铵态氮在苗期上升外，秸秆和地膜覆盖下土壤全氮及其组分含量在春玉米生育期基本呈苗期下降、拔节期上升、大喇叭口—抽雄期下降、灌浆和收获期回升的变化趋势；（2 ...
毛海兰 +4 more
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