A profile of environmental science in China

This paper concisely introduced the eco-environmental survey in China and the Chinese scientific programme for environmental research which is being practiced or being planned. China has established a nation-wide system relating to environmental scientific research and environmental administration and has taken the following strategies for solving the environment problems: (1) a series of laws and regulations for environmental protection has been promulgated so as to strengthen the legal administration and economic punishment. (2) the idea of ecological construction has been proposed for the purpose of taking the environmental protection work into the consideration of the national and provincial (or regional) economic construction planning. (3) spreading ecological engineering and ecological technologies have reduced the pollutant sources and have increased the industrial and agricultural economic profit.     

重庆三峡库区主要生态环境问题与对策

三峡水电站建成后，制约重庆经济可持续发展的关系是生态环境问题，包括三峡库区的水体污染，水土流失与泥沙问题，灾害性地质环境问题，建议建立三峡库区生态环境委员会，实行在市长领导下的环境保护行政领导责任制依法治库，加强生态环境意识教育，建立生态环境保护基金等。     

Numerical modeling of radionuclide migration in porous media with nonequilibrium sorption

Ｎｕｍｅｒｉｃａｌｍｏｄｅｌｉｎｇｏｆｒａｄｉｏｎｕｃｌｉｄｅｍｉｇｒａｔｉｏｎｉｎｐｏｒｏｕｓｍｅｄｉａｗｉｔｈｎｏｎｅｑｕｉｌｉｂｒｉｕｍｓｏｒｐｔｉｏｎ￥ＣｈｅｎＪｉａｊｕｎ；ＤａｉＪｉｅ（ＤｅｐａｒｔｍｅｎｔｏｆＥｎｖｉｒｏｎｍｅｎｔａｌＥｎ...     

Quantitative structure - activity study on the reductivedehalogenation potency of the halogenated aromatics

Ｑｕａｎｔｉｔａｔｉｖｅｓｔｒｕｃｔｕｒｅ－ａｃｔｉｖｉｔｙｓｔｕｄｙｏｎｔｈｅｒｅｄｕｃｔｉｖｅｄｅｈａｌｏｇｅｎａｔｉｏｎｐｏｔｅｎｃｙｏｆｔｈｅｈａｌｏｇｅｎａｔｅｄａｒｏｍａｔｉｃｓＨｕａｎｇＱｉｎｇｇｕｏ；ＷａｎｇＬｉａｎｓｈｅｎｇ；Ｈａｎ...     

Effect of acid precipitation on leaching of nutritionsand aluminium from forest soils

ＥｆｆｅｃｔｏｆａｃｉｄｐｒｅｃｉｐｉｔａｔｉｏｎｏｎｌｅａｃｈｉｎｇｏｆｎｕｔｒｉｔｉｏｎｓａｎｄａｌｕｍｉｎｉｕｍｆｒｏｍｆｏｒｅｓｔｓｏｉｌｓＤａｉＺｈａｏｈｕａ；ＬｉａｏＢｏｈａｎ；ＷａｎｇＺｈｉｈａｉＷａｎｇＸｉｎｇｊｕｎ；ＬｉｕＹｕｎｘｉ...     

Emergy evaluation of the environment and economy of Hong Kong

ＥｍｅｒｇｙｅｖａｌｕａｔｉｏｎｏｆｔｈｅｅｎｖｉｒｏｎｍｅｎｔａｎｄｅｃｏｎｏｍｙｏｆＨｏｎｇＫｏｎｇＬａｎＳｈｅｎｇｆａｎｇＤｅｐａｒｔｍｅｎｔｏｆＢｉｏｌｏｇｙ，ＳｏｕｔｈＣｈｉｎａＡｇｒｉｃｕｌｔｕｒａｌＵｎｉｖｅｒｓｉｔｙ，Ｇｕａｎｇｚｈｏ...     

浅议影响污水生物除磷的因素

针对目前水体富营养化严重，污水除磷要求高的现状，着重分析阐述了在目前条件下的对污水生物除磷产生较显著影响的因素，如，溶解氧及氧化还原电位，硝酸盐，泥龄，进水营养比等，以期对生产实践有所帮助。     

锦州湾表层沉积物中铅、锌、镉在各地球化学相间的分配规律

研究了受重金属严重污染的锦州湾内表层沉积物中铅、锌、镉在各地球化学相间的含量,及其在湾内河水-海水混合界面附近各相间的迁移转化特征。结果表明,锦州湾表层沉积物中上述重金属以非残渣相为主要存在形式,其中铁锰氧化物为重要的清除载体;以铁锰氧化物和碳酸盐形式存在的重金属含量由水环境的E_H和pH控制;在污染源附近的海区,表层沉积物中重金属在非残渣相和残渣相间的比值与近岸锌厂排出的这些重金属在废水和废渣中的含量比呈正相关关系。     

Technological system for sustainable development of Chinese agriculture

ＴｅｃｈｎｏｌｏｇｉｃａｌｓｙｓｔｅｍｆｏｒｓｕｓｔａｉｎａｂｌｅｄｅｖｅｌｏｐｍｅｎｔｏｆＣｈｉｎｅｓｅａｇｒｉｃｕｌｔｕｒｅＺｈａｎｇＲｅｎｗｕ；ＪｉＷｅｎｙｉｎｇ；ＺｈａｎｇＴｏｎｇ（Ａｇｒｏ－ＥｎｖｉｒｏｎｍｅｎｔａｌＰｒｏｔｅｃｔｉｏｎＩｎ...     

沈阳张士污灌区镉循环的分室模型与污染防治对策研究

对沈阳张士污灌区大气、水、土壤和生物各分室中Ｃｄ的库存量和各分室间Ｃｄ的循环通量进行了研究，建立了土壤－水稻系统中Ｃｄ流分室模型。该模型表明，Ⅱ闸和Ⅲ闸地区土壤分室中Ｃｄ的库存增量均为正值。可见，该污灌区近年来Ｃｄ污染程度由于污水灌溉仍然处于加剧的趋势。研究最后指出，该污灌区Ｃｄ的污染防治对策主要是减少污水灌溉量、进一步降低灌溉水中Ｃｄ的浓度和通过富Ｃｄ植物收获带走Ｃｄ．其中，以野生苋的收获带走Ｃｄ最有意义，它可使Ⅱ闸和Ⅲ闸地区Ｃｄ的下降速率分别依次达到２９．４９和２２．８１ｍｇ／（ｍ￣２·ａ）。