臺灣水田土壤肥力之特徵及其在數字分類上之地位(1).高屏地區沖積土及桃園紅壤與紅壤沖積土
Other Title
SOIL FERTILITY CHARACTERISTICS OF TAIWAN PADDY SOILS AND THEIR SIGNIFICANCE IN SOIL NUMERICAL CLASSIFICATION (1). ALLUVIAL SOILS IN KAOHSIUNG-PINGTUNG REGION AND LATOSOLS AND LATERITIC ALLUVIAL SOILS IN TAOYUAN PREFECTURE
台灣水田土壤肥力之特徵及其在數字分類上之地位(1).高屏地區沖積土及桃園紅壤與紅壤沖積土
Journal
中華農學會報
Journal Issue
新123
Pages
50-68
Date Issued
1983-09
Author(s)
張仲民
陳尊賢
陳春泉
林家棻
Jong-Min Chang
Zueng-Sang Chen
Chun-Chuan Chen
Char-Fen Lin
Abstract
根據美國農部1938年農業年刊「土壤與人類」中所記載，土壤肥力(Soil fertility) 係意指：在光線、水分、溫度與土壤物理條件等環境因素均適合於作物生長之情況下，土壤能夠平衡地適時、適量供應作物所需要各種營養元素之能力。由此定義，我們可以了解土壤肥力除受環境因素影響外，復視下列因素而決定：(1)養分之有效性及其平衡狀態；(2)土壤之物理性質(如通透性、排水、保水力、質地等)；(3)土壤之化學物質(如pH、緩衝能力、交換能力、有毒物質等)；及(4)土壤之生化學性質(如微生物之分佈與活性、有機物質之性質及其存在量等)。故土壤肥力是上列因素之綜合表現結果。
We investigated 130 slate alluvial soils (34 soil series) and 43 sandstone-shale alluvial soils (17 soil series) selected from 7 townships of Kaohsiung-Pingtung region, 95 latosols and lateritic alluvial soils (21 soil series ) selected from 2 townships of Taoyuan Prefecture. 15 soil properties (namely, organic matter, silt %, clay %, pH, exchangeable-Ca, Mg, K, AI, cation exchange capacity, available P, K, Si, Zn, free-Fe and free-Mn) of surface soil and 21 soil properties (Those included 15 soil properties of surface soil plus silt %, clay %, and soil color near a depth of 60cm and 90cm below the surface soil, respectively) of soil profile were investigated and the numerical classification was made based on the fertility differences.
Subjects
土壤
分類
水田
沖積土
肥力
屏東
紅壤
桃園
高雄
臺灣
Publisher
中華農學會
Type
journal article