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。
tall reedlike grass common in salt meadows.
芦苇状高草，在盐土草地常见。
A. splendens is a pioneer plant in saline-alkali soil ameliortion.
芨芨草是盐碱化土地改良中的先锋草种。
Soil Enzymatic Activities of Major Plant Communities in Songnen Alkaline Grassland
松嫩盐碱草地主要植物群落土壤酶活性研究
Study on the fertility effect of planting herbage grass on saline-alkaline land of silting coastal area on northern China
北方泥质海岸盐碱地种植牧草肥土效果研究
The secondary salinization of grassland soil is the main reason for the formation of secondary saline-alkaline soil patches in grasslands in Songnen Plain.
草地土壤次生盐渍化是松嫩平原次生盐碱斑形成的主要原因。
The dynamics of soil alkali-salinity and growth status of several herbal plants after krilium addition in heavy soda saline-alkali soil in field
施加改良剂对重度盐碱地土壤盐碱动态及草本植物生长的影响
Apply soil quality degradation index to calculation soil nutrition field in Songnen alkaline grassland
应用土壤质量退化指数计算松嫩盐碱草地土壤营养位
The comparison of the effect on the water propertles of alkaline-saline grassland between biological and chemical amel iorates
生物、化学改良对重度盐碱化草地土壤水分特性影响的比较研究
Effects of Saline-alkali Soil on the Growth and Effective Components of Aerial Part of Ephedra Sinica Stapf.;
盐碱化土壤对草麻黄地上部生长和有效成分含量的影响
Relationships between Soil Enzymatic Activities and Fertilizer Factors in Songnen Alkaline Grassland
松嫩盐碱草地土壤酶活性与肥力因子的典型相关分析
Changes of Soil Properties During Sandy Desertification for Grassland in Yanchi County
盐池县草地沙化演替过程中土壤理化特性的变化
Grid Scale Temporal Stability of Multi-layer Soil Moisture in a Grassland Ecosystem in Western China
黑河流域临泽盐碱化草地网格尺度多层土壤水分时空稳定性分析
Seasonal Dynamic Characteristic of Soil Fertility Quality in Different Saline-alkaline Grasslands
不同盐碱化程度草地土壤肥力质量的季节动态特征
rank soil, earth, etc
杂草滋生的土壤、 土地等
Nitrates fertilize soil.
硝酸盐使土地肥沃。
Research on the Dynamics of Soil Water and Salt of Purple Medic Grassland and Its Ecological Optimal Irrigation Control in Qinwangchuan Irrigated Regions in Gansu;
甘肃秦王川灌区苜蓿草地土壤水盐动态及其生态灌溉调控模式研究
Polyphenol oxidase activity and its relationship to the soil main fertilizer factor in west Songnen alkali grassland
松嫩平原西部盐碱草地土壤多酚氧化酶活性及其与主要肥力因子的关系
Fertility Quality Assessment of Soda Alinization Steppe Soil with Different Utilization Types in the West of Jilin Province
吉林省西部地区苏打盐渍化草原不同利用方式对土壤肥力质量的影响