土壤沖蝕對生產力之影響評估

CCUR > College of Environmental Planning & Bioresources > College of Agriculture > College of Agriculture > Hwa Kang journal of Agriculture > Item 987654321/33158

Please use this identifier to cite or link to this item: https://irlib.pccu.edu.tw/handle/987654321/33158

Title:	土壤沖蝕對生產力之影響評估 Impact of Erosion on Soil Productivity
Authors:	盧光輝葉節耀林木連
Contributors:	地理系
Keywords:	土壤沖蝕因子作物管理土壤沖蝕可容許量土壤肥力 Causative factor Crop management Soil loss tolerance Soil fertility
Date:	1996-01
Issue Date:	2016-06-24 15:58:35 (UTC+8)
Abstract:	本研究計畫旨在評估土壤沖蝕與生產力的關係，以3種不同施肥量處理，2種不同沖蝕量處理，2重複進行田間試驗栽培魯冰與玉米。結果顯示土壤沖蝕是造成農作物減產的主要原因，施肥可以減輕土壤沖蝕對生產量的衝擊程度，但是仍然無法補救沖蝕造成的損害。因為玉米減產幅度已超出百分之五十，也就是說，沖蝕多過30公分表土，以玉米作物生長於寶山農場土壤，已遠超出可容許的土壤流失量。比較其他作物如魯冰，玉米可算是一敏感作物。因此，作物的可容許土壤流失量應定比較低。 The objective of this study is to assess the relationship between erosion and soil productivity. Results from field studies, using 3 fertility levels and 2 erosion treatments with 2 replications, indicated that soil erosion is the major factor affecting yield loss. Fertilizer input has reclaimed most but not all of the losses resulting from soil removal. Because the maize yield decline has exceeded 50%, topsoil removal rate of 30 cm is beyond the tolerable soil loss limit at Paoshan Experiment Farm . This also points to the fact that maize crops are most sensitive to erosion- induced damage. Stricter soil loss tolerance limit should be imposed on maize crops than on lupin.
Relation:	華岡農科學報 7 民85.01 頁65-81
Appears in Collections:	[College of Agriculture] Hwa Kang journal of Agriculture

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	433	View/Open

View Licence

Loading...