坡地夏季蔬菜園水土保持方法之研究

Abstract

本試驗設置於鳳山熱帶園藝試驗分所坡度11°（20％）東南向砂質壤土的坡地上。其目的在比較坡地夏季蔬菜園不同水土保持方法對水土流失控制效果，以及對土壤水分，土壤理化性和蔬菜生育之影響情形，以探求最經濟有效的水土保持方法，提供坡地夏季蔬菜園土壤管理及保育設計參考。本試驗包括一、內斜式平台增段；二、百喜草帶狀覆蓋及敷蓋；三、百喜草條帶及戀風草敷蓋；四、無處理清耕對照區等四處理。 Field experiment was conducted on 20% slopeland with sandy loam soil facing southeastern direction at the Fengshan Tropical Horticultural Experiment Station. The purposes of this experiment were to compare the effects of various conservation methods on soil erosion control, soil moisture content, soil physico-chemical properties and vegetables production and to find out the most effective and economical method of soil conservation on slopeland for Summer. vegetable production. Four treatments including (A) reverse slope terrace;(B) strip covering and mulching with bahia grass; (C) strip covering and mulching with bahia grass and weeping love grass mowed for mulching; (D) cleancultivation were designed in this experiment,