宁夏西海固地区农业生态环境面源污染调查研究

农业生态环境面源污染控制与保护已成为区域农业和社会协调发展的重大问题。通过调查分析,西海固地区的农业面源污染源主要有化肥、农药、地膜、土壤侵蚀、牲畜禽粪便污染、有污染的灌溉水源与农村生活污水和农村固体废弃物等,并对西海固地区农业面源污染现状及其成因进行了分析。基于农业生态环境面源污染具有污染发生的广泛性、复杂性和治理难度大等特点,提出了防治农业面源污染与保护农业生态环境的对策及建议。

Investigation on Agricultural Non-point Source Pollution in Xihaigu Region in Ningxia

Nowadays non - point source pollution controll and protection of agricultural eco - environment is becoming a crucial problem of regional agricultural and social harmonious development. According to the investigation and analysis the agricultural non -point source pollutants in Xihaigu region in Ningxia are chemical fertilizer, pesticides, field film, soil erosion, excreta of the domestic animal and poultries, contaminative flooding water used in farmlands, rural domestic sewage and solid waste and so on. At the same time, the status of agricultural non - point pollution is evaluated, the main causes of agricultural non -point pollution are analyzed. Owing to non - point source pollution of agriculture possesses the characteristics of diffuseion and complication, its controll is very difficult. So some effective measures and suggestions are put forward to control agricultural non -point source pollution and to protect agricultural eco- environment.