Movement of inorganic elements in forest soil and specific characteristics in soil solution

森林土壤中无机元素的运动及土壤溶液中的具体特征

• 批准号: 01480070
• 负责人: HAIBARA Kikuo
• 金额: $ 2.75万
• 依托单位: Tokyo University of Agriculture and Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-01480070/
• 关键词: matter cycle; movement of matter; inorganic element; mineralization; ion; soil solution; stream; purification; 物質動態; 森林土壌; 移動特性; イオン交換樹脂; ポ-ラスカップ; 樹冠通過雨; 流出元素量; matter cycle; movement of matter; inorganic element; mineralization; ion; soil solution; stream; purification; 物質動態; 森林土壌; 移動特性; イオン交換樹脂; ポ-ラスカップ; 樹冠通過雨; 流出元素量

Movement of inorganic elements in forest soil were investigated three sides (movement inorganic elements of soil solution, characteristics of inorganic elements in stream discharge from watershed, mineralization of organic matter in soil). The characteristics of nutrient movement in the soil of a small watershed in a young coniferous stand were investigated using two methods : soil solution sampling by suction through a ceramic cup, and ion exchange resin (IER). Ca and Mg were released in equal amounts into the soil solution from solid phase (capacity factor) with an increase NO_3-N in solution (intensity factor). Movement of macronutrient elements at the 5 cm depths was significantly greater than at the 20 and 50 cm depths. Cation amounts in throughfall, stemflow, litterfall and undergrowth were measured for the three years after 40 and 50% removals of branches of crown lengths in a young coniferous stand. Effects of the removal of the different amounts of crown biomass on cation circ … More ulation are discussed.Leaching of cations from the soil colloid to the soil solution was affected by the concentrations of the main anions, not by a specific anions. Ca, Al, Mg, K and H increased in that order with an increase in the sum of concentrations of the anions. An exponential correlation was observed between H and Al concentrations in the soil solution. When H concentration in the soil solution was over 0.1 mel^<-1>, Al concentration was greatly increased. Any increase in the concentrations of anions in soils with low pH should be given attention in order to maintain the soil fertility. The relation between the groundwater pathway and change of stream quality was discussed by the separation of the stream discharge components using alkalinity. The rate of base flow to total of peak of stream discharge in the young stand was 23 % and in the established stand was 53 % for the event with 189 mm of total precipitation. These rates were 90 % in both catchment for the event with 45 mm of total precipitation. The relationship between the rate of mineralization of organic matter and temperature of soil were investigated. Kinetics was pointed out the possibility adaptation of mineralization of organic nitrogen. Less

研究了三个边（土壤溶液的无机元素，流域流出的无机元素的特征，流域中的无机元素的特征，有机物在土壤中的矿化）。使用两种方法研究了在年轻的针叶林中一个小流域土壤中养分运动的特征：通过陶瓷杯通过任务采样土壤溶液，以及离子交换树脂（IER）。 Ca和Mg等同量从固相（容量因子）中释放到土壤溶液中，溶液中NO_3-N（强度因子）增加。 5 cm深度处的大量营养素元素的运动显着大于20和50 cm的深度。在年轻的针叶树林中，在40％和50％的冠状长度分支上移除了40％和50％的分支后，测量了三年和50％的阳离子，茎流，垃圾降落和灌木丛中的阳离子量。去除不同量的冠状生物量对阳离子电路的影响……讨论了更多的ulation。从土壤胶体到土壤溶液的阳离子会受到主阴离子的浓度的影响，而不是受特定阴离子的浓度。 CA，AL，MG，K和H按该顺序增加，阴离子的浓度总和增加。在土壤溶液中，H和Al浓度之间观察到了指数相关性。当土壤溶液中的H浓度超过0.1 MEL^<-1>时，Al浓度大大增加。 pH值低的土壤中阴离子浓度的任何增加都应引起注意以维持土壤生育能力。通过使用碱度分离流排放成分，讨论了地下水通路与溪流质量变化之间的关系。年轻林分中河流排出峰值的基本流量的速率为23％，在既定的林分中为53％，总降水量为189毫米。这些事件的两个集水区的速率为90％，总降水量为45毫米。研究了有机物的矿化速率与土壤温度之间的关系。动力学指出了有机氮矿化的可能性。较少的