汶川大地震的主要影响区位于四川盆地西缘,是四川盆地向青藏高原的过渡地带,地质构造复杂,山高谷深坡陡,是我国生态环境十分脆弱的地区,同时该地区还是具有重要生态服务功能,是长江上游生态安全的重要屏障。汶川大地震不仅造成巨大人员伤亡和财产损失,也对生态系统造成了严重破坏,对区域生态安全带来巨大威胁。研究运用遥感数据和实地调查,评估了地震对生态系统的影响,研究结果表明:(1)汶川大地震造成严重的生态破坏,
观察空间诱变后恶性黑色素瘤B16细胞株的在小鼠体内肿瘤组织中血管生成拟态数目的改变,并探讨可能的机理。应用细胞低温长期生存系统,将B16细胞株搭载于中国第20号返回式卫星
This study examined the effects of dietary α-tocopheryl acetate supplementation on antioxidant enzyme activities and fillet quality in commercial-size Sparus m
The objectives of this study were to assess the potential of two photosynthetic bacteria (PSB), Rhodopseudomonas palustris HZ0301 and Rhodobacter sphaeroides HZ
Impacts of climate warming on heating energy consumption and southern boundaries of severe cold and cold regions of China in the past 20 years are analyzed by u
Bacterium strain PJ3, isolated from wastewater and identified as Arthrobacter sp. bacterium based on its 16S rDNA gene, could use carbazole as the sole carbon,
To investigate the genetic diversity of Tricholoma matsutake, we studied ITS and IGS1 sequences and PCR polymorphism of a retrotransposon in 56 fruit bodies col
A negligible depletion-solid phase microextraction (nd-SPME) method is developed to measure free concentrations of two alkyl phenols (4-t-octylphenol, nonylphen
Simultaneous in-situ determination of U-Pb agea and 20 trace elements of three international zircon standards (91500, GJ1 and TEMORA 1) and one laboratory zirco
The large scale character of the interannual variation of precipitation and the urban effect on local annual precipitation anomaly are investigated in this pape