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題名 | 高雄都會公園土壤環境監測=Soil Environmental Monitoring of Kaohsiung Metropolitan Park |
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作者 | 張簡水紋; 陳守泓; 王敏昭; | 書刊名 | 國家公園學報 |
卷期 | 16:1 民95.06 |
頁次 | 頁65-81 |
分類號 | 434.22 |
關鍵詞 | 土壤重金屬; 監測基準值; 可溶性鹽類; 土壤水分蒸發; Soil heavy metal; Monitoring level; Soluble salt; Soil water evaporation; |
語文 | 中文(Chinese) |
中文摘要 | 高雄都會公園為一自垃圾掩埋飽和後再規劃利用之大型綠地公園。由於園區基地是由垃圾掩埋飽和後經覆土闢建而成,為瞭解本公園基地覆土層之土壤環境品質,以及土壤環境對植栽安全與生長之影響,故監測調查本園區之土壤環境。因此,於園區闢建工至民國93年逐年針對一、二期園區之土壤重金屬及水體採樣調查,以及一期園區風險評估所需參數之初步探討與測定。 九十三年所採集十五個位址之土壤重金屬含量,經分析結果發現重金屬含量均未超過食用作物農地之監測基準值。園區之地下水質分析,顯示水質之重金屬濃度均甚低,且低於地下水污染之第一類管制標準值,但是水值之導電度均高於750 μS □之灌溉水質限值標準,且在椰林西側、南側及二期掩埋場南側水質之硝酸鹽氮含量高於地下水污染之第一類管制標準值。於一期園區基地測得之土壤重金屬含量以及地表水分蒸發潛勢參數模擬之結果,指出園區土壤環境若適逢降雨時期,可能會使地勢較低區域土壤之重金屬或可溶性鹽類增加;若於夏季時期高溫且日射量大,易導致土壤水分蒸發量大,使土壤溶液中之鹽類聚集於表土,對植物之生長造成影響。 |
英文摘要 | Kaohsiung Metropolitan Park is a large scale green park established in a fully buried landfill and then covered with soil. It is necessary to investigate the characteristics of the covered soil for the safety and quality of growth of plants. In the present study we have determined the preliminary parameters for risk assessment in the soil and water samples which are collected from the 1st base of the park in 2004. The results showed, that heavy metals contents in the soil collected from 15 sample sites were less than the monitoring levels of agricultural soil for edible crops, while the same are low in ground water compared to control standards of groundwater pollution. However, the electrical conductivity (EC) values of the ground water are higher than 750μS □ compared to water quality standard. Moreover, the N□ –N contents in the water samples collected from southern and western sites of coconut plantation and southern site of the 2sn stage landfill area are higher than the 1st control standard value (10 mg □). Based on soil and related data obtained from the 1set area of the park, the heavy metals and soluble salts in the area of lower level topography might be increased during rainy season. These heavy metals and soluble salts accumulated at upper layer of covered soil because of high temperature and solar radiation which result in high evaporation of soil water, and thus potentially affect the plants growth. |
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