【摘要】 水环境质量评价是水环境管理保护和治理的一项重要基础性工作 .在分析目前用于水质评价主要模型及其存在主要问题的基础上 ,引入了人工神经网络理论来解决自动定权问题 ,应用BP改进模型及GIS开展了东湖水质、富营养化综合评价 ,结果表明该方法在客观性、实用性及适应性等方面具有明显的优点 .更多还原

【Abstract】 The water environment quality appraisal is an importa nt groundwork for the water environment management and protection. Based on anal yzing key problems for water quality evaluation, the artificial neural network t heory is introduced to solve automatically the determination of weight; and the comprehensive evaluation of water quality and trophic development of East Lake is carried out by using the BP improved model and GIS. The results show that thi s method has obvious merits in objectivity, practicability and adaptability.更多还原