Results 21 to 30 of about 2,775 (160)
The Accommodation of Nitrogen to Polycyclic Aromatic Hydrocarbons (PAHs) Pollution in Avicennia marina [PDF]
, 2011 近年来，红树林湿地有机污染问题越来越突出，日益引起了人们的关注。根际是植物进行物质交换频繁的特殊微型生态区域，是有机物特别是持有性有机污染物进入红树植株内部的门户。根际微域复杂的微生物对植物的生长非常重要，并与有机污染物的吸收、转化和降解等生态化学行为及毒理效应密切相关。然而有关红树林湿地，营养元素对有机污染物毒害调节作用的研究鲜见报道，特别是对红树植物根际的微生物生态效应我们仍然所知甚少。 本研究通过自制根际套管，完全做到了根际研究器皿体积小，能避免施毒不匀、植物个体差异等实验干扰因素 ...
江山
core
Extracellular Enzyme Stoichiometric Characteristics of Subtropical Forest Soil under Forest Fire Disturbance [PDF]
[Objective] Forest fire, as the primary natural and human-induced disturbance in subtropical forests, seriously affects the soil biochemical cycle.
GUO Qiling +5 more
core +1 more source
Effects of Cadmium on Soil Microbial Biomass and Enzyme Activities in Rhizosphere of the Kandelia candel Seedlings [PDF]
, 2009 近年来，红树林湿地重金属污染问题越来越突出，日益引起了人们的关注。根际是物质交换频繁的特殊微型生态区域，是重金属进入红树植株内部的必经之路。根际微域复杂的微生物对植物的生长非常重要，并与重金属的吸收、转化和迁移等生态化学行为及毒理效应密切相关。然而有关红树林根际微生物对重金属胁迫的响应的研究鲜见报道，重金属污染对红树植物根际的微生物生态效应我们仍然所知甚少。本研究通过根箱盆栽红树植物秋茄（Kandeliacandel(L.)Druce）幼苗，分离根际与全土区域 ...
黄永
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Carbon Sequestration and Balance in Kandelia candel Plantation Ecosystem in Jiulongjiang Estuary [PDF]
, 2012 本文选择福建九龙江口不同发育阶段（中龄林、成熟林）的秋茄红树林为研究对象，通过测定秋茄红树林林木层各器官、凋落物层和土壤层含碳率，结合各组分生物量和年净生产量，计算了秋茄红树林生态系统的碳储量和不同发育阶段秋茄林的年净固碳量。于2010年5月至2011年4月，采用LI–8100全自动土壤CO2通量测定系统，研究了不同林龄秋茄林的土壤呼吸的日动态、月动态与季节差异，及其土壤水热因子对土壤呼吸的影响。通过测定样地的土壤含碳率和碳储量，以及秋茄林生态系统地上部分的年固碳量，分析评价了秋茄红树林生态系统的碳源 ...
金亮
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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
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
Integrative Conservation, Volume 3, Issue 3, Page 257-270, September 2024.Natural training enclosure design schematic. We selected 12 sika deer including six adults and six sub‐adults. Key considerations in the design of the natural training were to divide the training spatial ground into two parts (30 × 30 m small areas for isolation of new individuals and large areas measuring 200 × 600 m for free walking), and the ...
Wentao Zhang +10 more
wiley +1 more source
Characteristics of Soil Active Carbon Fractions and Carbon Pool Stability in Major Forest Types in Northern Daxing’an Mountains [PDF]
[Objective] Soil organic carbon is an important component of the carbon cycle in forest ecosystems, and active organic carbon can indicate changes in soil carbon pools.
CAI Tijiu, LIU Beibei
core +1 more source
Shuitu Baochi Xuebao, 2008 通过对湖南会同林区集约经营毛竹林地土壤有机碳和微生物量碳进行测定,结果表明,毛竹林地土壤(0-60 cm)有机碳和微生物量碳含量平均值分别为1.727%和551.84 mg/kg,不同土壤层次有机碳和微生物量碳含量差异极显著,其中,0-20 cm土层有机碳含量平均值为2.607%,分别是20-40 cm和40-60 cm土层有机碳含量的1.67倍和2.57倍;0-20 cm土层的微生物量碳占土壤总微生物量碳的58.9%,分别是20-40 cm和40-60 cm土层的2.69倍和3.08倍 ...
XIAO, FAN, WANG, YU, LIU, DEN
doaj
模拟氮沉降对华北落叶松人工林土壤微生物碳和微生物氮的动态影响
Shuitu Baochi Xuebao, 2020 为揭示过量的大气氮沉降对华北落叶松人工林土壤微生物碳、氮和土壤呼吸的影响，通过对照（N0：0 g/（m2·a））、轻度施氮（N1：8 g/（m2·a））、重度施氮（N2：15 g/（m2·a））3个外源施氮水平下5年的野外定点试验和观测，模拟过量氮沉降条件下华北落叶松人工林土壤微生物碳、氮和土壤呼吸的变化，旨在阐明林下土壤微生物和呼吸对过量氮沉降的响应及其对土壤碳氮循环的影响。结果表明：在5—10月生长季中，土壤微生物碳和氮的平均含量分别为1 098.93，97.31 mg/kg ...
李素新 +3 more
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