Organo-mineral complexes were separated from different developing direction and phases of steppe soils with fractional method of particle-size and density, and their mounts, humus contents, composition and ratio of carbon to nitrogen were analyzed.
对采自处于不同发展方向和阶段的草原土壤分组提取有机矿质复合体，并对它的质量分数、腐殖质质量分数和组成、Ｃ／Ｎ比值等的变化做了分析，试图从土壤复合体变化的角度去认识草原的退化和恢复过程。
Five different land utilization methods of saline steppe soil in the west of Jilin province were selected,including grazing grassland,fencing grassland,tillable,new paddy field and long-term cultivate paddy field.
结果均揭示水田和围栏草原土壤肥力质量较高,而放牧草原和旱田土壤肥力质量较低,呈退化趋势。
Effects of different land use types on carbohydrate content and aggregate stability in arid grassland soil;
利用方式对干旱草原土壤碳水化合物含量及团聚体稳定性的影响
Studies on the characteristics of soil fertility and relationshipamong nutritive factors in alpine grassland soil of Qilian mountains;
祁连山区高寒草原土壤肥力特征及肥力因子间的关系(简报)
A Study on Biochemical Properties of Actinomyces in Tibet Highland;
西藏高山草原土放线菌生化特性研究
The grassland soils are generally the most productive.
草原土壤通常都是最肥沃的。
Soil Respiration of Typical Grassland in Inner Mongolia;
内蒙古典型草原土壤呼吸作用的研究
Study on Soil Respiration at Grazing and Fenced Typical Leymus Chinensis Steppe, Inner Mongolia;
放牧与围栏羊草草原土壤呼吸作用研究
Distribution of Soil Active Organic Carbon of Alpine Grassland on Qinghai-Tibet Plateau
青藏高原高寒草原土壤活性有机碳的分布特征
Study on the Soil Character and Soil Seed Bank of Fencing on the Degenerative Typical Steppe;
封育对退化典型草原土壤理化性质与土壤种子库的影响研究
Influence of soil moisture-temperature conditions on surface CO_2 efflux in desert steppe of the Qilian Mountains,the Northwest of China;
土壤水热条件对祁连山荒漠草原土壤CO_2通量的影响
Spatial-temporal variation of soil organic carbon and its relations to soil physical properties in degraded alpine grasslands
退化高寒草原土壤有机碳时空变化及其与土壤物理性质的关系
Reclamation on Organic Matter Content and Structural Properties in Steppe Soil of Northeast Songnen Plain
东北松嫩草原土壤开垦对有机质含量及土壤结构的影响
The effect of grazing on soil micro-organism and soil nutrients and their seasonal dynamics in Stipa breviflora Steppe
放牧对短花针茅草原土壤微生物和土壤养分的影响及其季节动态
Study on the Relation of Soil Thickness Spatial Distribution and Grassland Degradation Based on 3S
基于3S草原土壤厚度空间分布与草原退化程度关系的研究
Influence of Vegetation Coverage on Soil Moisture in Desert Grassland
荒漠草原植被覆盖对土壤水分的影响
Recovery Effects of Closed Fencing on Forages and Soil Nutrients in Typical Steppe;
封育对典型草原牧草及土壤养分的恢复效应
Soil Structural Properties of Enclosed Steppe in the Semiarid Area
半干旱典型草原区封育草地土壤结构特征研究
any grass of the genus Chloris; occurs in short grassland especially on waste ground or poor soils.
虎尾草属的任何一种草；出现在矮草原尤其在荒原或土壤贫瘠地区。
The Influence of Soil Seed Banks on the Vegetation Restoration in the Grassland on Loess Plateau;
土壤种子库对黄土高原草地植被恢复的影响
Study on the Different Grass Species Growing Media for Road Slope Greening in Loess Plateau
黄土高原道路边坡绿化草种及土壤基质筛选
Preliminary study on soil seed bank of weeds in winter wheat field on Loess Plateau
陇东黄土高原冬小麦地土壤杂草种子库初探
