老埤台地不同植生下土壤理化性質之研究

A Study on Soil Physical and Chemical Properties under Different Vegetation in Laopi Terrace

10.30061/CEB.200903.0005

黃國禎(Kuo-Cheng Huang)；江介倫(Jie-Lun Chiang)；邱宏彬(Hung-Pin Chiu)；黃彥凱(Yen-Kai Huang)；黃瀞瑩(Ching-Ying Huang)

紅壤 ； 土壤理化性質 ； 變異分析 ； Lateritic soil ； oil physical and chemical properties ； Variation analysis

作物、環境與生物資訊

6卷1期（2009 / 03 / 01）

51 - 60

繁體中文

本研究以屏東縣內埔鄉老埤地區洪積母質紅壤為研究對象，並根據不同植生分為六個樣區，包含牧草地、荔枝園、香楠林、芒果園、雜木林、鳳梨園，以隨機之採樣方式採集分析六個樣區土壤之樣本，並利用變異分析比較各試區土壤理化性質之差異。研究結果發現，不同植生下土壤之總體密度以荔枝園及牧場較高，其次為鳳梨園，而以香楠林、芒果園及雜木林較低；pH值以雜木林及鳳梨園較低，其他樣區則較高；土壤有機質以荔枝園及鳳梨園較高，而以牧場、香楠林、芒果園及雜木林較低；土壤水力傳導度以香楠林及芒果園較高，其次為雜木林及鳳梨園，而以牧場及荔枝園較低。而不同深度土壤理化性質之變異，以土壤總體密度變化幅度介於6-30%、土壤有機質介於30-49%及土壤水力傳導度介於77-88%達顯著差異。

The experimental site selected for this study was located in Laopi terrace, Pingtung Hsien. The main soil type in this area is Lateritrc soil. There were six regions classified based on vegetations grown in the field. The soil was sampled from each regions to analyze and compare the physical and chemical properties. The results indicated that the soil bulk density was higher in samples taken from litchi garden, pasture, and pineapple garden. The pH values from the shaw and pineapple garden were lower than others. The soil organic matter from litchi garden and pineapple garden was higher than that from the pasture, Machilus zuihoensis, mango garden and the shaw. The hydraulic conductivity from Machilus zuihoensis and mango garden was the highest, followed by the shaw, pineapple garden, pasture and litchi garden. The soil chemical and physical properties varied from different depths of the soil profile. The range of the soil bulk density was from 6 to 30%, the soil organic matter was from 30 to 40%, and the soil hydraulic conductivity was from 77 to 88%, respectively. The changes of these three soil properties were significantly different among the sampled regions.