摘要
选择武汉动物园旅游区具有代表性的5种汇水单元,对降雨径流水质水量进行了同步监测,研究了城市旅游区降雨径流污染过程,对比了裸露林地、草地林地、兽类泥土场院、禽类泥土场院及屋顶这5种汇水单元的年降雨径流污染物平均浓度,并计算了污染物的年污染负荷.研究结果表明,透水地表的水土流失是其降雨径流污染的主要原因,室外动物展览馆中动物排泄物在地面累积使场馆径流受到严重污染.城市旅游区中颗粒态是N、P污染物输出的主要形态.各汇水单元中,TN、DN、TP、DP、COD、SS的年污染负荷最高值分别为165、31.2、22.5、1.03、2216、8571kg·hm-·2a-1.城市旅游区的土地景观利用方式是影响污染物输出的首要原因.
Five typical catchments in the Wuhan Zoo were selected for monitoring in order to study storm-water pollution process. The results showed that particle nitrogen and particle phosphorus were the main forms transported by runoff. Bird yard , beast yard and exposed woodland were the key sites of pollution source. The unit pollutant loading rates of TN, DN, TP, DP, COD, SS were 165.0 for beast yard, 31.2 for roof, 22.5,1.03,2216,8571 kg· hm^ -2. a^-1 for beast yard respectively. Type of land use was primary limiting factor influencing storm -water pollution in urban tourist attractions.
出处
《环境科学学报》
CAS
CSCD
北大核心
2006年第7期1062-1067,共6页
Acta Scientiae Circumstantiae
基金
国家高科技研究发展计划("863"计划)项目(No.2002AA601022)~~
