请输入您要查询的字词:
单词
塿土
释义
塿土
Encyclopedia
农学
娄土
释
tier soil
塿土
自然褐土经过长期耕种熟化,施加大量土粪或富含有机质的农家肥,并由风尘自然沉降而形成的一种人为土壤。在中国第一次全国土壤普查(1959)中命名,在中国土壤分类暂行草案(1978)和第二次全国土壤普查分类(1988)中归入半淋溶土土纲,褐土土类、塿土亚类;在中国土壤系统分类(1991)中,归入人为土纲,旱耕人为土亚纲,塿土土类;在美国土壤系统分类中,相当于新成土;在联合国世界土壤图图例(1988)中,相当于人为土。曾称堆垫褐土。
随便看
third-class hospital
third contact
third cosmic velocity
third critical filed
third critical magnetic field
third critical magnetic filed
third curvature
third five-year plan of China
Third Force Party
third fundamental form
third generation computer
Third Generation Director
third generation language
third generation language, 3GL
third generation low light level (LLL) image intensifier
third generation sequencing
third-generation sequencing
third generation sequencing techniques
third generation solar cell
Third-generation Writers
third group isomorphism theorem
third harmonic
third harmonic generation
third integral
Third International Theory
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2025/10/15 8:48:15