期刊文献+

二次检索

题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

年份

学科

期刊

共找到5篇文章
< 1 >
每页显示 20 50 100
废弃物管理词汇对照(十一)
1
作者 于欣丽 《术语标准化与信息技术》 1999年第2期24-27,共4页
000167中文术语:沼气场中文定义:对有机物质进行处理,然后在沼气反应器中转化,对产生气体进行净化及贮藏的工厂德文术语:Biogasanlage德文定义:AnlagezurAufbereitungdesorganisch... 000167中文术语:沼气场中文定义:对有机物质进行处理,然后在沼气反应器中转化,对产生气体进行净化及贮藏的工厂德文术语:Biogasanlage德文定义:AnlagezurAufbereitungdesorganischenMaterials,zuran... 展开更多
关键词 废弃物管理 英文术语 中文术语 中文定义 词汇 俄文 德文 废弃物处理 生物小区 生物处理
下载PDF
让我们的周围充满绿色
2
作者 王庆 喻京 《中国科教创新导刊》 1998年第4期28-,32,共页
让我们的周围充满绿色王庆译喻京校“生物小区”一词人们似乎不十分熟悉,现在日本各地正在开展让“大自然”回归到人们生活圈中的各种丰富多彩的尝试。“生物小区”一词源于德语,德国自70年代中期就开始了自然复兴运动,建造“生物... 让我们的周围充满绿色王庆译喻京校“生物小区”一词人们似乎不十分熟悉,现在日本各地正在开展让“大自然”回归到人们生活圈中的各种丰富多彩的尝试。“生物小区”一词源于德语,德国自70年代中期就开始了自然复兴运动,建造“生物小区”已成为社会一大潮流。后来,生... 展开更多
关键词 生物小区 水生植物 横滨市 大口黑鲈鱼 自然景观 生态小区 生态公园 萤火虫 蜻蜓 生态系统
下载PDF
On-farm Evaluation of Effect of Organic and Mineral Fertilizers on Biomass and Yield of Millet/Cowpea Intercrop in the Sahel, West Africa 被引量:1
3
作者 Hide Omae A. K. Saidou Satoshi Tobita 《Journal of Life Sciences》 2014年第7期582-592,共11页
To determine the best combinations of organic and mineral fertilizer applications under resource-limited conditions in the Sahel, West Africa, on-farm experiments for two years in the Fakara region of western Niger is... To determine the best combinations of organic and mineral fertilizer applications under resource-limited conditions in the Sahel, West Africa, on-farm experiments for two years in the Fakara region of western Niger is conducted. Ten treatments were tested; six of them received one of three organic fertilizers (none, millet husks, or manure), with or without mineral fertilizer; two grew millet/(dual-purpose) cowpea intercrops with mineral fertilizer in 1:1 or 4:4 row arrangement; one grew a millet/(spreading) cowpea intercrop with manure; and one grew a millet/hibiscus intercrop with millet husks. Manure increased total biomass by 127%- 147% (P 〈 0.001 ) and millet yield by 130%- 184% (P 〈 0.01 ). Mineral fertilizer increased total biomass by 27% (P 〈 0.01 ) and millet yield by 24% (P 〈 0.05) in 2008. The N balance was greatest and positive in the manure treatment (P 〈 0.001), followed by millet husks. Mineral fertilizer on the intercropped dual-purpose cowpea increased the agronomic N use efficiency of millet by 329%-483% (P 〈 0.01) compared with manure. The use of small quantities of mineral fertilizer on the intercropped dual-purpose cowpea, therefore, is a best combination for limited N-resources-farmers. Single manure, millet husks plus mineral fertilizer, or year-alternative-application are also recommendable depends on farmers accessibility to the resources. 展开更多
关键词 MILLET COWPEA INTERCROP manure mineral fertilizer millet husks sandy soil nitrogen use efficiency.
下载PDF
Responses of Different Physiological Indices for Maize(Zea mays) to Soil Water Availability 被引量:2
4
作者 WU Yuan-Zhi HUANG Ming-Bin D. N. WARRINGTON 《Pedosphere》 SCIE CAS CSCD 2011年第5期639-649,共11页
Knowledge of plant responses to soil water availability is essential for the development of effcient irrigation strategies.However,notably different results have been obtained in the past on the responses of various p... Knowledge of plant responses to soil water availability is essential for the development of effcient irrigation strategies.However,notably different results have been obtained in the past on the responses of various physiological indices for different plants to soil water availability.In this study,the responses of various plant processes to soil water availability were compared with data from pot and field plot experiments conducted on maize(Zea mays L.).Consistent results were obtained between pot and field plot experiments for the responses of various relative plant indices to changes in the fraction of available soil water(FASW).A threshold value,where the relative plant indices began to decrease with soil drying,and a lower water limit,where the decline of relative plant indices changed to a very slow rate,were found.Evaporative demand not only influenced the transpiration rate over a daily scale but also determined the difference in transpirational response to soil water availability among the transient,daily and seasonal time scales.At the seasonal scale,cumulative transpiration decreased linearly with soil drying,but the decrease of transpiration from FASW = 1 in response to water deficits did not affect dry weight until FASW = 0.75.On the other hand,the decrease in dry weight was comparable with plant height and leaf area.Therefore,the plant responses to soil water availability were notably different among various plant indices of maize and were influenced by the weather conditions. 展开更多
关键词 dry weight evaporative demand fraction of available soil water plant growth TRANSPIRATION
原文传递
Microbial and hydrodynamic properties of aerobic granules in a sequencing batch reactor treating landfill leachate
5
作者 Yan-jie WEI Min JI +1 位作者 Guo-yi LI Fei-fei QIN 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2012年第3期219-229,共11页
A sequencing batch reactor (SBR) seeded with activated sludge was established for landfill leachate treatment. Small bio-aggregates began to appear after 40-d operation, and gradually changed to mature aerobic granu... A sequencing batch reactor (SBR) seeded with activated sludge was established for landfill leachate treatment. Small bio-aggregates began to appear after 40-d operation, and gradually changed to mature aerobic granules, with a mean size of 0.36-0.60 ram. Their sludge volume index at 5 min (SVI5 rain), mixed liquor volatile suspended solids (MLVSS), and wet density were around 35 ml/g, 3.4 g/L, and 1.062 g/cm3, respectively. The settling velocities of the granules in distilled water ranged from 0.3 to 1.3 cm/s, which were faster than those in landfill leachate with a salt content of 1.4% (w/v), and also slightly faster than those predicted by Stokes' law for porous but impermeable particles. Microbial community evolution during the granulation process and stages under different nitrogen loading rates (NLRs) were monitored and analyzed by polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE), cloning, and sequencing of 16S ribosomal RNA (rRNA) fragments. Results revealed that some primary and dominant communities in inoculating activated sludge died out gradually; while a few common bacteria, inhabiting soils, municipal wastewater, or activated sludge systems, dominated in the SBR system throughout. In addition, some other dominant species, associated with the aerobic granulation process, were thought to play a significant role in the formation and growth of aerobic granular sludge. During the stable operation time under low NLR, a few species were present in abundance, and may have been responsible for the high organic removal efficiency at this time. 展开更多
关键词 Aerobic granules Microbial community Polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) Landfill leachate
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部