The causes of agricultural non-point source pollution mainly included chemical fertilizer,chemical pesticide,animal manure and wastes,crop straws that not be comprehensively used,agricultural film and production and livings sewage.
农业面源污染的主要来源有化学肥料、化学农药、畜禽粪便及养殖废弃物、没有得到综合利用的农作物秸秆、农膜地膜、生产和生活污水等。
参考来源 - 农业面源污染的成因及控制对策·2,447,543篇论文数据，部分数据来源于NoteExpress
China is a big agricultural country, and have great crop straws resource.
我国是农业大国，各类农作物秸秆资源十分丰富。
A comprehensive collection and utilization method of crop straws belongs to the field of comprehensive utilization of crops.
一种农作物秸秆的综合收集利用方法，属于农作物的综合利用领域。
Construction Conditions: The major raw materials for power generating with biological matters include all kinds of crop straws and branches.
建设条件：生物质发电主要原料是各种作物秸秆、枝桠材等生物质。
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