Results 21 to 30 of about 14,470 (183)
Study on the relationship of carbon, nitrogen, phosphorus contents and microbial diversity in the surface sediments of Yundang Lagoon [PDF]
, 2010 以半封闭咸水型泻湖-厦门筼筜湖为研究对象，采用现场分析和实验室测定相结合的方法分析并比较了沉积物中总碳（totalcarbon，TC）、总有机碳（totalorganiccarbon，TOC）、总氮（totalnitrogen，TN）、总磷（totalphosphorous，TP）等生源要素的周年变化和空间分布，并对一些理化指标进行了测定和分析。同时在实验室内采用磷脂法测定了表层沉积物微生物生物量的周年变化和空间分布；采用聚合酶链反应-变性梯度凝胶电泳技术（polymerasechainreaction-
黄健骝
core
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Organic phosphorus mineralization is a critical process in the phosphorus cycle, governing phosphorus bioavailability for plants. The PhoD gene, which encodes the key enzyme alkaline phosphatase, serves as a valuable biomarker for this process.
Sandhya Mishra +3 more
wiley +1 more source
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
Soil carbon dynamic characteristics of coal gangue-filled reclaimed cropland and forest land under time series [PDF]
, 2023 In order to clarify the intrinsic mechanism between soil quality and soil carbon cycling after reclamation and to reveal the characteristic patterns of carbon dynamics of reclaimed soils under time series, the cultivated soils of 3, 6, 9 and 12 a ...
Junfeng QU +3 more
core +1 more source
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Stand functional diversity (RaoQ) and stand functional composition in terms of the functional traits of the component species (CWM trait) are critical for ecosystem processes and functioning, such as litter decomposition and associated nutrient cycling.
Bai‐Yu Yang +12 more
wiley +1 more source
Conservation Biology, EarlyView.Abstract Illegal wildlife trade (IWT) is one of the largest global illegal activities, and it negatively affects biodiversity and sustainable development worldwide. DNA barcoding coupled with high‐throughput sequencing (i.e., metabarcoding) is useful in identifying taxa affected by IWT and has been used routinely for decades.
Maria Joana Ferreira da Silva +9 more
wiley +1 more source
Shuitu Baochi Xuebao, 2011 土壤微生物生物量、土壤微生物呼吸及微生物商值(微生物商qMB、微生物呼吸商qCO2)是土壤质量的敏感性指标。对喀斯特峡谷区不同植被恢复阶段土壤微生物生物量、土壤微生物呼吸及其qMB、qCO2进行研究,结果表明:在植被恢复过程中,土壤微生物生物量、土壤微生物呼吸及qMB均表现为从退耕地到草本群落下降,从草本到灌木群落上升,从灌木到乔木群落略微上升或者趋于稳定;qCO2的变化规律与它们相反。在同一恢复阶段,土壤微生物生物量,土壤微生物呼吸,qMB值均随土层加深而减小。土壤微生物生物量、微生物呼吸及其qMB ...
崔晓晓 +3 more
doaj
Comprehensive framework for assessing and optimizing existing research networks
Conservation Biology, EarlyView.Abstract Conservation, monitoring, and research networks, or collections of ecological research sites unified under a common mission of data collection or a research mission, are essential infrastructure for understanding large landscapes. However, most networks developed opportunistically over decades rather than through systematic design, creating ...
Alyson East +2 more
wiley +1 more source
Shuitu Baochi Xuebao, 2006 在亚热带丘陵区红壤幼龄茶园经过4年稻草覆盖及间作三叶草田间小区试验，对土壤剖面分析结果表明．稻草覆盖及间作三叶草均能明显增加土壤表层有机C、碱解N、有效P．增加土壤微生物量C、N、P。剖面中土壤有机C、微生物量C、全N、碱解N、土壤微生物量N、全P、有效P、微生物量P随深度的增加而递减。稻草覆盖影响到40cm土层左右，阃作白三叶草影响到20cm左右。0～20cm土层微生物量C／有机CT2〉T3〉T1，3个处理微生物量N／全N在1．02～2．74之间，微生物量P和全P比值在2．27～13．1之间 ...
沈程文 +5 more
doaj +2 more sources