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昆明市规模化畜禽养殖场污染现状及控制对策 总被引:1,自引:0,他引:1
对昆明市畜禽养殖污染现状调查显示,2002年规模化畜禽养殖场产生粪尿207290t,大部分被作为农家肥处理掉,平均使用率为85%,但几乎未经过无害化处理,对周围区域水体及湖泊造成严重污染.政府应对畜禽养殖业进行宏观监挖,加大环境管理力度,加强畜禽污水监测排放,并进行减量化治理,无害化处理,综合利用,循环发展,实现生态养殖. 相似文献
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Guo Rong Liu Hong-Mei Sun Hong-Hao Wang Dong Yu Hao Do Rosario Alves Diana Yao Lu 《Journal of Material Cycles and Waste Management》2022,24(6):2314-2327
Journal of Material Cycles and Waste Management - The massive generation of municipal solid waste (MSW) has become an essential social problem that not only damages the ecological environment but... 相似文献
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Wen-Juan Pan Can Xiong Qiu-Ping Wu Jin-Xia Liu Hong-Mei Liao Wei Chen Yong-Sheng Liu Lei Zheng 《Chemosphere》2013
Bisphenol A (BPA) is a well-known environmental toxic substance, which exerts unfavorable effects through endocrine disruptor (ER)-dependent and ER-independent mechanisms to threaten ecological systems seriously. BPA may also interact with other environmental factors, such as light and heavy metals, to have a synergetic effect in plants. However, there is little data concerning the toxic effect of BPA on the primary producers-plants and its possible interaction with light-dependent response. Here, the effects of BPA on germination, fresh weight, tap root length, and leaf differentiation were studied in Arabidopsis thaliana under different parts of light spectrum (dark, red, yellow, green, blue, and white light). Our results showed that low-dose BPA (1.0, 5.0 μM) caused an increase in the fresh weight, the tap root length and the lateral root formation of A. thaliana seedlings, while high-dose BPA (10.0, 25.0 μM) show an inhibition effect in a dose-dependent manner. Unlike karrikins, the effects of BPA on germination fresh weight and tap roots length under various light conditions are similar, which imply that BPA has no notable role in priming light response in germination and early seedling growth in A. thaliana. Meanwhile, BPA exposure influences the differentiation of A. thaliana leaf blade significantly in a light-dependent manner with little to no effect in dark and clear effect under red illumination. 相似文献
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