本文選題：非點(diǎn)源污染　切入點(diǎn)：花卉大棚　出處：《湖泊科學(xué)》2017年05期

【摘要】：為掌握滇池流域花卉大棚種植區(qū)的非點(diǎn)源污染特征,提高和改善滇池水環(huán)境質(zhì)量,本研究選取呈貢縣斗南村花卉大棚種植區(qū)作為研究對(duì)象,在實(shí)測降雨徑流數(shù)據(jù)的基礎(chǔ)上,通過建立Storm Water Management Model模型分別對(duì)全年連續(xù)降雨條件下和典型設(shè)計(jì)降雨條件下的降雨徑流水質(zhì)、水量進(jìn)行了模擬.研究結(jié)果表明:1)模型的流量、化學(xué)需氧量(COD_(Cr))、懸浮物(SS)、總氮(TN)和總磷(TP)的Nash-Sutcliffe效率系數(shù)分別為0.858、0.835、0.803、0.712和0.752,能夠較好地模擬研究區(qū)域的水質(zhì)、水量變化.2)研究區(qū)域的平均徑流系數(shù)為0.59,CODCr、SS、TN和TP的單位面積負(fù)荷率分別為118.34、82.90、54.64和5.46 kg/(hm~2·a),TN和TP是主要控制的污染物.3)各污染物濃度峰值的出現(xiàn)時(shí)間均早于流量峰值出現(xiàn)的時(shí)間,因此對(duì)滇池東岸花卉大棚種植區(qū)應(yīng)進(jìn)行污染物尤其是TP、TN濃度與流量錯(cuò)峰控制.
[Abstract]:In order to understand the characteristics of non-point source pollution and improve the water environmental quality of Dianchi Lake in the flower greenhouse planting area of Dianchi Lake Basin, this study selected the flower shed planting area of Dounan Village in Chenggong County as the research object, based on the measured rainfall runoff data.The Storm Water Management Model model was established to simulate the water quality and quantity of rainfall runoff under the condition of continuous rainfall and typical design rainfall respectively.The results show that the Nash-Sutcliffe efficiency coefficients of the flow, COD, SS, TN and TP) of the model are 0.858 (0.835) and 0.8033.0.712 and 0.752, respectively, which can be used to simulate the water quality of the study area.(2) the average runoff coefficient of the studied area is 0.59 and the unit area load rates of TN and TP are 118.34 and 5.46 kg/(hm~2 / a respectively. The peak concentration of each pollutant is earlier than that of the peak of flow rate, which is mainly controlled by TN and TP, respectively, which are the main pollutants in the study area, and the average runoff coefficient in the study area is 0.59 and 0.59 and the load rates of TN and TP are respectively 118.34 / 82.90 and 5.46 kg/(hm~2 / kg / kg, respectively.Therefore, the concentration and flow of TP TN should be controlled in the planting area of flower shed on the east coast of Dianchi Lake.
【作者單位】： 重慶大學(xué)三峽庫區(qū)生態(tài)環(huán)境教育部重點(diǎn)實(shí)驗(yàn)室;重慶大學(xué)低碳綠色建筑國際聯(lián)合研究中心;中國市政工程西南設(shè)計(jì)研究總院有限公司;
【基金】：國家水體污染控制與治理科技重大專項(xiàng)(2012ZX07102-001) 高等學(xué)校學(xué)科創(chuàng)新引智計(jì)劃項(xiàng)目(B13041) 重慶大學(xué)大型儀器設(shè)備開放基金項(xiàng)目(201506150013)聯(lián)合資助
【分類號(hào)】：X52;X71

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本文編號(hào)：1683551