新闻
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170614/30729981.html
Server: cms-8-252
Date: 2024/12/27 05:08:10

Powered by China
China

《自然》称中国湖泊治污良好 8年磷污染降逾三分之一

2017-06-14 13:05:33   

科技日报北京6月13日电 (记者张梦然)英国《自然·地球科学》杂志12日在线发表的一篇报告显示,在2006年到2014年间,中国湖泊的磷污染下降了逾三分之一。该研究发现,中国政府于2000年推出的治理水污染政策,帮助降低了城市地区与磷污染有关的水华风险。

此次,天津大学、中国人民大学、北京大学等科研机构与挪威水研究所的科学家团队分析了2006—2014年间,中国862个湖泊的水化学数据以及磷来源和磷流入的省级数据。结果发现,磷浓度中值大致降到了可导致富营养化的浓度阈值,重度污染的湖泊数量减少了三分之二,其中主要的驱动因素是公共卫生改善和污水减少。不过,一些欠发达地区湖泊的磷浓度有所上升,原因尚不确定,但有可能是受到了森林退化和侵蚀的影响。研究人员认为,水质控制政策在空间上的灵活性,将有利于未来中国湖泊的“健康”。水华是淡水水体中藻类大量繁殖的一种自然生态现象,是水体富营养化(可用养分增加导致藻类过度生长)的显著特征。富营养化可能会在湖泊中自然发生,但其主要原因仍是生活及工农业生产中含有大量氮、磷的污水进入水体后,造成蓝藻、绿藻、硅藻等大量繁殖,其中蓝藻水华的发生范围最广,且危害最大,对人类健康威胁不容忽视。目前,人为向水体排放营养物已经使全球范围内的富营养化现象明显加重,导致水质下降、鱼类灭绝和生物多样性减少。

在相应的新闻与评论文章中,美国威斯康星大学麦迪逊分校科学家杰西卡·科曼表示,此次《自然》杂志发表的分析表明,中国在保护湖泊方面取得了良好效果。

(原标题:《自然》称中国湖泊治污效果良好)

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170614/30729981.html
Server: cms-8-252
Date: 2024/12/27 05:08:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170614/30729981.html
Server: cms-8-252
Date: 2024/12/27 05:08:10

Powered by China
China

相关阅读

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170614/30729981.html
Server: cms-8-252
Date: 2024/12/27 05:08:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170614/30729981.html
Server: cms-8-252
Date: 2024/12/27 05:08:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170614/30729981.html
Server: cms-8-252
Date: 2024/12/27 05:08:10

Powered by China
China
分享到:
0 0
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170614/30729981.html
Server: cms-8-252
Date: 2024/12/27 05:08:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170614/30729981.html
Server: cms-8-252
Date: 2024/12/27 05:08:10

Powered by China
China

美图推荐

404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170614/30729981.html
Server: cms-8-252
Date: 2024/12/27 05:08:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170614/30729981.html
Server: cms-8-252
Date: 2024/12/27 05:08:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170614/30729981.html
Server: cms-8-252
Date: 2024/12/27 05:08:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170614/30729981.html
Server: cms-8-252
Date: 2024/12/27 05:08:10

Powered by China
China

为您推荐

加载更多>>
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170614/30729981.html
Server: cms-8-252
Date: 2024/12/27 05:08:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170614/30729981.html
Server: cms-8-252
Date: 2024/12/27 05:08:10

Powered by China
China
404 Not Found

404 Not Found

Sorry for the inconvenience.
Please report this message and include the following information to us.
Thank you very much!

URL: http://3g.china.com:8080/act/news/11038989/20170614/30729981.html
Server: cms-8-252
Date: 2024/12/27 05:08:10

Powered by China
China