Results 21 to 30 of about 1,278 (109)
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
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福島県内の陸域環境における人為起源I-129の動態 [PDF]
, 2018 この博士論文は内容の要約のみの公開（または一部非公開）になっています筑波大学 (University of Tsukuba ...
HONDA Maki, 本多 真紀
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Genomic responses to increased temperature and pollinator selection in Brassica rapa L.
New Phytologist, Volume 250, Issue 2, Page 1231-1247, April 2026.Summary Rapid environmental change reshapes both abiotic stress and biotic interactions, yet it remains unclear how these combined forces structure plants' genomic adaptation. In particular, the joint influence of temperature and pollinator identity, two ecological axes undergoing simultaneous global shifts, has rarely been quantified at genomic ...
Yanqian Ding, Florian P. Schiestl
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Functional Ecology, Volume 40, Issue 3, Page 706-719, March 2026.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
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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
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Shuitu Baochi Xuebao, 2005 采用实验室培养试验研究了阿特拉津除草剂对土壤微生物生态特征的影响。结果表明：阿特拉津除草剂10mg／kg浓度处理释放的CO2与对照无明显差异，根据危害系数法的分级方法，其属于无实际危害级农药；阿特拉津除草剂10mg／kg浓度处理在初始阶段，明显降低土壤微生物生物量碳和微生物生物量氮，随培养时间推移土壤微生物生物量碳和生物量氮有所恢复，随后又有所下降，30d后土壤微生物生物量变化趋于平缓；阿特拉津除草剂对土壤微生物多样性产生一定影响．其影响随培养时间而异 ...
捌已斌 徐建民 尚鹤 张超兰
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Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Porous NiTi alloys are widely used in biomedical and engineering fields. Using the PBF‐LB technique, the TPMS and Voronoi porous parts with a porosity of ∼67% and a minimum feature size of 0.15 ± 0.02 mm were fabricated. Although the bulk sample fabricated with the same parameters is defect‐free, μ‐CT reconstruction on the porous sample ...
Wen‐Hao Zeng +7 more
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A Report on "Necessary Preventive Care Leader Training" at Urayasu City Citizens' University [PDF]
, 2015 本年度「うらやす市民大学」において,「うらやす市で豊かな人生を送るための介護予防実践（介護予防リーダー養成講座）」に講師として参加する機会を得た.本研究では,その活動内容から,その教育体制の概観を報告するとともに今後の課題を検討することを目的とした.
541 +11 more
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Rare Metals, Volume 45, Issue 2, February 2026.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
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Shuitu Baochi Xuebao, 2008 研究了干旱区绿洲种植年限不同的3种苜蓿地0-10 cm,10-20 cm土层土壤微生物量碳、微生物量氮、微生物量商、呼吸强度和代谢商的变化特征。结果表明:在耕层0-20 cm范围内,苜蓿种植年限的长短对土壤微生物量碳、土壤微生物量氮含量有影响,相对来说微生物量碳、氮在四年生苜蓿地的含量最高,其次是一年生苜蓿地的。不同种植年限苜蓿地之间土壤微生物量商(qMB)、呼吸强度、代谢商(qCO2)差异显著,相对来说种植年限相差越大,差异越大。相关分析结果表明,土壤理化特性对土壤微生物活性有影响,其中土壤微生物量碳、
YANG, JIANG, ZHAI, YANG, JIANG
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