The soil conservation in the United States shifted the emphasis on reducing soil erosion for increasing the productivity of fields onto reducing the effect of soil erosion on environment in 1970 s.
60年来美国开展了大量的土壤侵蚀治理项目，土壤保护经历了由注重减轻田间土壤侵蚀、增加土壤生产力到注重减轻土壤侵蚀对环境影响的转变。
The article introduces the soil pollution from modern agriculture,and the characteristics of modern organic agriculture,and the ecological principle of organic agricultural soil protection.
综述了现代常规农业对土壤的污染、有机农业的特点及有机农业土壤保护措施的生态学原理。
On the base of that the practical and theoretical research lacks of highway area soil protection were proposed as a reference for further researches.
为了更好地促进路域土壤的保护,在全面分析公路建设对土壤造成的影响的基础上,指出了路域土壤保护在理论研究和实践等方面存在的不足,为进一步开展相关研究提供依据。
terms and definitions relating to the protection and pollution of the soil
土壤保护和污染的相关术语和定义
Plants cover the soil.
植物覆盖和保护着土壤。
Project Conservation of Soils and Watershed
土壤和分水界保护计划
Effect of the Management of Organic Matter on Soils Protection in Xingshan Tobacco-growing Areas in Hubei Province
兴山烟区土壤有机质管理对土壤的保护作用
protection of soil against erosion or deterioration.
保护土壤不流失或者不退化。
Make Use of the Root Systems of Bush-grass to Protect the Soil Resources
灌草丛根系在保护土壤资源上的研究
Experimental Study on Soil Wind Erosion with Conservation Tillage Treatment;
保护性耕作防治土壤风蚀的试验研究
Microbial Characteristics of Conservation Tillage in Paddy Soil;
稻田保护性耕作土壤微生物特性研究
Current Situation of Farmland Soil Utilization and Countermeasures of Soil Protection in Fuzhou City;
福州市耕地土壤利用现状与保护对策
Acidity Characteristics and Acidification Mechanism of Soils in Protected Fields
保护地土壤酸度特征及酸化机理研究
Physical and chemical properties of forest soils in Mulun nature reserve
木论自然保护区森林土壤的理化特性
Effects of Conservation Tillage on Soil Organic Carbon Fractions
保护性耕作对土壤有机碳组分的影响
One important form of soil conservation is the use of windbreaks.
保护土壤的一个重要的做法就是使用防护林，
Study on the Water Erosion under 5 Years Conservation Tillage System in Loess Plateau;
黄土高原5年保护性耕作农田的土壤水蚀研究
Soil conservation efforts protect soil from wind and water that can blow or wash it away.
保护土壤的措施可以让土壤免于被风吹走或被水冲走，
Effects of soil salinity accumulating and ion constitution on pH in the soil of protected field
保护地土壤盐分积累及其离子组成对土壤pH值的影响
We can do this in a number of ways.
我们可采用很多种方法对土壤进行保护。
Notes on soil dematiaceous hyphomycetes from Shennongjia Natural Conservation Area, Hubei Province I.
湖北神农架自然保护区土壤中的暗色丝孢菌I.