水土保持處理對土壤及栽植果樹養分之影響

The Influences of Soil Property and Fruit Trees Nutrition with Different Soil and Water Conservation Treatment

陳慶雄(Ching-Hsing Chen) ； 許中立(Chung-Li Hsu) ； 黃國鋒(Kuo-Feng Huang)

《坡地防災學報》 1卷1期 (2002/07) Pp. 71-84

https://doi.org/10.29995/JSHR.200207.0006

摘要

本研究係於屏東科技大學水土保持試驗區之坡地荔枝果園中，以百喜草全園覆蓋、百喜草全園覆蓋加山邊溝、淨耕果園以及草帶間種植果樹並輔以百喜草殘株敷蓋等四種水土保持處理，分別進行土壤理化性質與栽植作物之體元素的分析，以比較不同水土保持處理對果園土壤與荔枝樹養分獲得之影響。試驗結果得知，百喜草覆蓋或敷蓋處理均能有效改善土壤理化性質與肥分，其中又以百喜草全園覆蓋處理的效果最佳，淨耕處理區效果最差；從荔枝樹的葉片養 分分析可知，在施肥期若逢降雨雖有助於土壤有機質及肥分之溶解與移動，促進植物根部吸收，使得葉片氮、磷、鎂、鐵含量增加，但相對地因雨水淋洗作用，亦會造成鉀、鈣、銅、鋅等含量的減少。

關鍵字

水土保持處理 ； 荔枝樹 ； 百喜草 ； 養分

並列摘要

The objective of this study was to examine and compare the influences of the leaves nutritious absorption, soil physical and chemical properties at the Pingtung University of Science and Technology experimental sites with different kinds of soil and water conservation treatment such as cover with Bahia mulching in hillslope lichee garden. The results show that the Bahia grass crop covering and mulching can maintain higher level of soil organic matter, reduce the applying fertilization, urge nutritious absorption, improve soil physical and chemical properties. The contain of N, P, Ma, Fe of lichee leaves were increased and the K, Ca, Cu, Zn were decreased due to rainfall cause the transportation and leaching of soil organic matter and fertilization.

並列關鍵字

Soil and water conservation treatments ； Lichee garden ； Bahia grass ； Nutrition