Salinity refers to the total concentration of salts present in the soil solution . 含鹽量是指土壤溶液中所存在的鹽類的總濃度。
Drainage water analyses may not indicate the composition of soil solutions accurately . 排水分析不能正確地反映土壤溶液的組成。
Determination of oxygen content in forest soil solution 森林土壤溶液中氧含量的測定
The extent of infection is controlled not by the phosphorus concentration in the soil solution but the phosphorus content of plant 植物所吸收的磷以聚磷酸鹽的形式在菌絲中運輸效率高
Acidity and inorganic nitrogen concentrations in soil solution in short - term response to n addition in subtropical forests 鼎湖山森林土壤滲透水酸度和無機氮含量對模擬氮沉降增加的早期響應(yīng)
The mineral elements from the soil that are usable by the plant must be dissolved in the soil solution before they can be taken into the root 土壤中可供植物利用的礦物成分,必須溶解在土壤中才能被根部吸收。
Most research results indicated that temperature has the effects on concentrations of dissolved organic matter in soil solution and on composition of soil organic p 大多數(shù)研究結(jié)果顯示,溫度對土壤溶液中的溶解態(tài)有機質(zhì)和土壤有機磷組分有較大的影響。
In tropical and sub - tropical area , soil solution contains large amount of hydroxy - fe ions . these hydroxy - fe ions may react with montmorillonite in soils to form fe - oxyhydioxide - monuiiorillonite complexes 它們可以和負電性的土壤礦物?蒙脫石作用生成低聚合羥基鐵?蒙脫石復(fù)合體。
Ions ( mainly refering to ca2 ' , mg2 * and ncv et al . , which have higher concentration in soil solution ) in rape rhizosphere with no re and appropriate dose re treatments moved mainly via a diffusion process up to a 3mm distance from the central compartment ( c . c ) , and mainly by mass 油菜對照和低濃度稀土處理距根表3mm以內(nèi)離子(主要指ca 》 、 no 。 w等在土壤溶液中濃度較大的離子)遷移以擴散方式為主, 3mm以外的區(qū)域則以質(zhì)流方式為主。
Equilibrium distribution of an ion between soil solution and solid phase was described by a distribution coefficient , k . the k was a ratio of cs and c1 and a conditional equilibrium constant , which cs and c were quantity of k in solid and solution phase respectively 隨水吸力增大,固相鉀離子( cs )比率下降,液相鉀離子比率逐漸增加,分配系數(shù)k減小。在水吸力約為1 . 5 10 ~ 5pa時,四種土壤鉀離子在固液相間的分配達到穩(wěn)定,分配系數(shù)為最小。