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炭土溯源,尋夢芝山|求知水體指標,溯源水質污染

時間:2023-08-11 關注:
      為了探索芝山村的水體與土壤狀況對當地生產的影響,并向村民普及低碳環保知識,南京農業大學資環學院“炭土溯源,尋夢芝山”團隊在張旭輝副教授和劉曉雨副教授的帶領下前往南京溧水芝山開展暑期社會實踐活動,通過實地考察、走訪宣傳、實驗研究等形式進行深入調研
      7月9日,為了探索芝山村周圍小流域內人類活動對于水環境的影響,水檢測小組在劉曉雨老師的指導下,在該小流域的上游至下游間確定了7個具有代表性的采樣地點,每個地點設置3個平行組并使用專用的采水裝置和儲水容器進行水樣采集。
 
      采集完成后,團隊成員及時記錄下采集地點的海拔、經緯度和地圖位置,并立即測量了采集水樣的pH值,據此對樣本進行標記與分類。
 
      隨后,小組根據人類活動對于水環境的影響特點,選擇了pH、硝態氮、氨態氮、總磷、電導率5個指標以判斷水質狀況。
 
      實驗結果表明,小流域水體中的各項指標與人類活動密切相關。在洗衣塘、餐飲、豆腐坊、釀酒廠等人流量比較大的地方,生產生活用水的排放會使水體中離子種類與數量越來越多,導致硝態氮含量、氨態氮含量、總磷量及電導率顯著增加。
 
作者:“炭土溯源,尋夢芝山”團隊 來源:“炭土溯源,尋夢芝山”團隊
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