Performance of Streptomyces pactum–assisted phytoextraction of Cd and Pb: in view of soil properties,element bioavailability,and phytoextraction indices

Environmental Science and Pollution Research - Microbe-assisted phytoremediation provides an eco-friendly and cost-effective approach to reclaim Cd- and Pb-contaminated soils. In this work,...     

湖北省湖泊资源特点及开发利用

通过对湖北省境内主要湖泊（面积大于１０ｋｍ＾２）的调查与分析，阐述了湖泊资源的几个特点，探讨了湖泊资源利用中存在的问题，并就湖泊资源的合理开发利用途径提出了建议。     

对我国地震旅游资源开发利用的探讨

为开发和利用地震旅游资源,发展旅游经济,本文探讨了地震旅游的内容、特点、意义和功能;列出了震迹旅游资源和震记旅游资源的主要景点目录;提出了开发地震旅游活动应作好的几项工作;以期推动此项工作的开展。     

汽车排气污染与治理的发展和动向

简介了汽车排气污染对人类健康和生态环境的影响；描述了世界汽车增长与排气污染的现状和发展趋势；综述了汽车排气催化净化技术所面临的挑战和最新研究动向。     

The impact of urban spatial structure on air pollution: empirical evidence from China

Environment, Development and Sustainability - For a long time, air pollution caused by unreasonable urban spatial structure and excessive urban sprawl has been a prominent environmental problem in...     

Spatial and temporal distribution of total ozone over China

１　ＩｎｔｒｏｄｕｃｔｉｏｎＯｚｏｎｅｉｓｏｎｅｏｆｔｈｅｔｒａｃｅｇａｓｅｓｉｎａｔｍｏｓｐｈｅｒｅ．Ｉｔｃａｎａｂｓｏｒｂｎｅａｒｌｙａｌｌｓｏｌａｒｕｌｔｒａｖｉｏｌｅｔｒａｄｉａｔｉｏｎ（ＵＶＢ）ｒａｎｇｅｄｆｒｏｍ０－２０—０－３５μｍ．Ｔｈｅｃｈａｎｇｅｏｆｓｔｒａｔｏｓｐｈｅｒｉｃｏｚｏｎｅｃｏｎｃｅｎｔｒａｔｉｏｎａｎｄｉｔｓｖｅｒｔｉｃａｌｓｔｒｕｃｔｕｒｅｗｉｌｌｉｎｆｌｕｅｎｃｅｔｈｅｔｅｍｐｅｒａｔｕｒｅｓｔｒｕｃｔｕｒｅｏｆｓｔｒａｔｏｓｐｈｅｒｅ．Ｔｈｅｄｅｃｒｅａ…     

土壤有机质矿化与温室气体释放初探

通过土壤有机质的矿化２作用，模拟估算温度气体在中国土壤中的释放量，结果表明，ＣＯ２从土壤中的释放量为３７．５亿ｔ／ａＣＨ４从稻田中的释放量为０．２０亿ｔ／ａ，Ｎ２Ｏ从稻田中的释放量为３．４５万ｔ／ａ，对土壤中温室气体释放估算提供了一种简便方法，由于掌握资料不足，准确估算需进一步研究。     

污泥加药调质中的有关问题探讨

污泥的加药调质条件对脱水性能的影响很大，在加药调质中，根据污泥性质，正确选择凝聚剂和絮凝的种类、规格和投加量是很关键的。在具体的调质工艺过程中，还有一些值得注意的环节。污泥脱水效果不佳，并不一定是脱水机的性能、污泥性或调质药剂等原因所至，有可能是在具体的调质工艺操作中的一些易忽视的环节出了问题，而这些对污泥调质效果往往是至关重要的。     

长永高速公路建建工程的美化与绿化设计

公路的绿化、美化设计是公路景观设计的重要组成部分。长永高速公路在改建过程中，充分利用沿线的水文、地形、气候、地理等特点，从环境学、园林植物学、园林美学及建筑学的角度，阐述了沿线绿化、美化的设计思想及设计方案。该方案的实施，将实现长永高速公路沿线绿化、美化与环境的和谐统一。     

Prenatal detection of an Arg→Ter mutation at codon 111 of the pah gene using DNA amplification

A CGA→TGA mutation at codon 111 in exon 3 of the phenylalanine hydroxylase (PAH) gene was recently identified in a Chinese phenylketonuria (PKU) patient. This paper reports the prenatal diagnosis of a Chinese fetus at risk for PKU using DNA amplification with PCR and oligonucleotide hybridization. RFLP analysis revealed that the fetus had inherited a PKU gene from his mother, but his paternal PAH gene was uninformative. PCR amplification of 300 bp which included exon 3 plus the flanking intronic sequences of the PAH gene was performed. The amplified DNA was hybridized with a pair of allele-specific oligonucleotide probes. The results indicated that the fetal DNA carried a PAH 111 Arg→Ter mutant gene inherited from his father. Thus, the fetus was predicted to be affected with PKU.