期刊
SOIL & TILLAGE RESEARCH
卷 98, 期 2, 页码 208-210出版社
ELSEVIER
DOI: 10.1016/j.still.2007.12.002
关键词
organic soils; no-till fanning; bulk density; porosity
类别
Drainage, tillage, and intensive land use lead to drastic alterations in physical characteristics of organic soils. As decomposition and soil formation progress, bulk density (rho(b)) increases and total porosity (f(t)) decreases due to subsidence, shrinkage, and mineralization of soil organic matter (SOM). However, the rate of subsidence and the changes in soil properties differ among management systems. Thus, the objectives of this study were to determine the effects of different tillage practices on rho(b) and f(t) of cultivated peat soils. These experiments were conducted during 2004-2005, on Histosols in north central Ohio. Soil core samples were obtained from experimental plots managed with moldboard plow (MB), no-till (NT), or left bare (B). Conversion of plow tillage to NT increased Pb from 0.52 to 0.57 Mg m(-3), and decreased f, from 0.72 to 0.70 m(3) m(-3). (c) 2007 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据