现代农业科技
現代農業科技
현대농업과기
XIANDAIHUA NONGYE
2012年
9期
293-296
,共4页
氮流失%氮循环%面源污染%控制措施
氮流失%氮循環%麵源汙染%控製措施
담류실%담순배%면원오염%공제조시
nitrogen loss%nitrogen cycle%non-point source pollution%control measures
氮素是化肥中使用量最大的营养元素,其循环过程产生的氮损失是形成面源污染的主要原因。论述了农业生态系统氮循环过程中氮的输入与输出,氮流失造成面源污染的原因及途径,提出具体的防控措施,以期减少农业生态系统中的氮流失。
氮素是化肥中使用量最大的營養元素,其循環過程產生的氮損失是形成麵源汙染的主要原因。論述瞭農業生態繫統氮循環過程中氮的輸入與輸齣,氮流失造成麵源汙染的原因及途徑,提齣具體的防控措施,以期減少農業生態繫統中的氮流失。
담소시화비중사용량최대적영양원소,기순배과정산생적담손실시형성면원오염적주요원인。논술료농업생태계통담순배과정중담적수입여수출,담류실조성면원오염적원인급도경,제출구체적방공조시,이기감소농업생태계통중적담류실。
The utilization quantity of nitrogen fertilizer is the largest among nutrition elements in agricultural production. Nitrogen loss of the circle track was the main cause of non-point source pollution. The input and output of nitrogen in agricultural ecological cycle ,reasons and ways of non-point source pollution formed by nitrogen losses were discussed. Some control measures were put forward, so as to reduce nitrogen loss in agricultural ecosystem.
