Results 11 to 20 of about 14,470 (183)
塔里木沙漠公路防护林土壤微生物生物量与土壤环境因子的关系 [PDF]
, 2009 为探讨极端干旱区风沙土土壤微生物与土壤环境因子的作用规律,采用相关分析法研究了塔里木沙漠公路防护林地土壤微生物生物量与理化因子和酶活性的关系.结果表明:土壤容重和粒径减小(R0.85)时,防护林地中土壤微生物数量和生物量有增大趋势,由容重与微生物量的相关性主导;土壤养分含量与土壤微生物数量和生物量呈正相关,主要由速效养分和放线菌、微生物生物量C、P的相关性所致;土壤酶活性与土壤微生物数量和生物量的相关性差异较大,R在0.51～0.91,主要取决于蔗糖酶、磷酸酶与放线菌、微生物量C的相关 ...
周宏伟 +7 more
core
Rare Metals, EarlyView.ABSTRACT The polyanionic compound Na3V2(PO4)3 (NVP) has emerged as a competitive cathode material for sodium‐ion batteries (SIBs), owing to its high‐voltage redox activity (3.4 V vs. the Na+/Na reference couple) and NASICON‐type framework that enables superior ionic conductivity.
Xiaolei Wu +5 more
wiley +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
core
Effects of Mixing Tree Species on Soil Enzyme Activity and Carbon-Use Efficiency in Eroded Masson Pine Forest [PDF]
[Objective] Soil microbial metabolic efficiency profoundly affects soil nutrient cycling and soil carbon sequestration in the recovery process of eroded and degraded areas. However, it is unclear how tree species mixture affects soil extracellular enzyme
JIANG Yongmeng +7 more
core +1 more source
Rare Metals, EarlyView.ABSTRACT This study introduces novel nonequiatomic TiZrCoCrMoCux (x = 0, 5, 10; at%) medium‐entropy alloys (MEAx) tailored for orthopedic implants, synergistically combining the biocompatibility of Ti‐based alloys, the wear resistance of CoCrMo alloys, and the antibacterial/osteogenic attributes of Cu. The alloy's microstructure, mechanical properties,
Hang Yu +9 more
wiley +1 more source
Effects of drying-wetting cycle caused by rainfall on soil respiration: Progress and prospect [PDF]
, 2018 Soil respiration is an important part of the carbon cycle in terrestrial ecosystems. The changes of soil respiration caused by rainfall directly affect global carbon balance.
朱连奇 +3 more
core +1 more source
Effects of Desert Land Cultivation on Soil Aggregate Stability and Carbon Fixation [PDF]
, 2023 [Objective] The response of soil aggregate stability and organic carbon before and after land reclamation using different land use types were analyzed in order to provide a scientific theoretical basis for wasteland reclamation, vegetation restoration ...
Chen Xue +4 more
core +1 more source
On the Damage Tolerance of Diffusion Bonded Titanium–Aluminum Phase Biomimetic Composites
Rare Metals, EarlyView.ABSTRACT The biomimetic design principles of natural structures involve the strategic integration of stiff and compliant phases to synergistically enhance strength and toughness. Its evolutionary refined natural armor, characterized by a specialized microarchitecture, enables superior damage tolerance.
Shuai Tong +10 more
wiley +1 more source
Shuitu Baochi Xuebao, 2005 在金沙江干热河谷区的退化草地上进行了2年的氮磷施肥试验,试验结束后分析了土壤特性及土壤微生物数量和生物量的变化。结果表明,在施氮量为5 ,15g/ (m2 ·a)时,土壤微生物的数量和生物量均没有明显变化,而当施氮量增加到2 5g/ (m2 ·a)时,土壤微生物的数量和生物量比对照明显增加。施磷没有引起土壤微生物数量和生物量的明显增加。施氮和施磷均没有引起土壤细菌、真菌和放线菌组成的变化。这表明氮虽然影响土壤微生物的数量,但对土壤微生物的组成没有影响。施氮导致土壤硝态氮增加,但对氨态氮影响不大 ...
张彦东 孙志虎 沈有信
doaj +2 more sources
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Decomposition is the transformation of dead organic matter into its inorganic constituents. In most biomes, decomposition rates can be accurately predicted with simple mathematical models, but these models have long under‐predicted decomposition in globally extensive ...
Heather L. Throop +8 more
wiley +1 more source