论文部分内容阅读
[!--newstext--]
[!--title--]
【摘 要】
：
近年来蔬菜地面积快速增加已成为我国农田土壤碳库变化的重要驱动因素,研究蔬菜种植方式对农田土壤固碳影响,对于揭示我国农田土壤碳库变化具有重要意义.通过实地调查与采样
【机 构】
：
土壤与农业可持续发展国家重点实验室,中国科学院研究生院
【出 处】
：
生态学报
【发表日期】
：
2004年期
其他文献
实验研究了偏振与非偏振激光对亚心形扁藻的促长作用、叶绿素含量以及色素粗提物吸收光谱等生物学效应的影响.采用488 nm,70 mW输出功率的氩激光,辐照哑心形扁藻,隔天取样进
Molecular characterization of bacterial community in aerobic granular sludge stressed by pentachloro
To characterize the effects of pentachlorophenol (PCP) on the performance and microbial community of aerobic granular sludge insequencing batch reactor (SBR), t
A pilot-scale submerged membrane bioreactor (MBR) was used to treat the bathing wastewater for more than 90 d. Several factorsaffecting membrane fouling were st
虹膜定位是在虹膜图像中找到虹膜的内外边界,它是虹膜识别中的重要环节.该文提出了一种根据曲线拟合来进行虹膜快速定位的新方法,即先对图像进行分块并提取包含瞳孔的子图像
Pseudomonas sp. Strain WBC-3 utilized methyl parathion or para-nitrophenol (PNP) as the sole source of carbon, nitrogen, andenergy, and methyl parathion hydrola
Phylogenetics and biogeography of eastern Asian-North American disjunct genus Pachysandra (Buxaceae)
Pachysandra is an eastern Asian-North American disjunct genus with three species, two in eastern Asia (Pachysandra axillaris and Pachysandra terminalis) and one
Regulation on the expression of Clara cell secretory protein in the lungs of the rats with acute lun
Background Clara cell secretory protein (CC16) is an important lung derived protective factor and may play an important role on the pathogenesis of acute lung i
本研究旨在探讨营养与品种对肉牛血清中磷酸腺苷活化蛋白激酶( AMPK)活性的影响及AMPK活性与血液生化指标的关系.选取体重为250 kg左右的西杂牛35头、利杂牛26头、夏杂牛24头
采用不同的方法对来源不同地区的4个甜高粱品种叶片不同部位的抗氧化物质黄酮、SOD、维生素C进行动态研究,结果表明:甜高粱不同品种均表现为叶肉中黄酮、维生素C含量高,叶脉