Effects of plant growth on the dynamics of the soil solution composition in the root zone of maize in four Japanese soils
Effects of plant growth on the dynamics of the soil solution composition in the root zone of maize in four Japanese soils
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DOI：
10.1080/00380768.1995.10419576
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发表时间：
1995-06
影响因子：
2
通讯作者：
J. Yanai;S. Araki;K. Kyuma
中科院分区：
文献类型：
--
作者：
J. Yanai;S. Araki;K. Kyuma
摘要 通过在四种日本土壤中种植玉米（Zea mays L.），研究了植物生长对土壤溶液化学成分动态的影响。进行了八种处理的盆栽实验：四种有植物和无植物的土壤材料。在每个盆中安装四个带有环形中空纤维的采样器（LHF-采样器，Yanai 等人，1993：土壤科学植物营养，39, 737-743），并在 50 天的生长期内从根区原位无损地采样五次土壤溶液。在支持植物活跃生长的土壤中，随着植物的生长，土壤溶液中的电导率和 Ca、Mg、K 和 NO3 浓度降低，pH 值显着升高。还观察到空间差异：盆上部土壤溶液中某些元素的浓度明显低于下部土壤溶液。与浓度一样，土壤溶液的成分也受到植物生长的影响：活性比......
Abstract The effects of plant growth on the dynamics of the chemical composition of the soil solution were studied by growing maize (Zea mays L.) in four Japanese soils. A pot experiment was carried out with eight treatments: four soil materials with and without plants. In each pot^four samplers with a looped hollow fiber (LHF-samplers, Yanai et al. 1993: Soil Sci. Plant Nutr., 39, 737-743) were installed and the soil solutions were sampled nondestructively from the root zone in situ, five times during the 50-day growth period. In soils supporting active plant growth, electrical conductivity and concentrations of Ca, Mg, K, and NO3 in the soil solution decreased and the pH increased significantly with plant growth. Spatial differences were also observed: soil solutions in the upper parts of the pots were significantly less concentrated in some elements than those in the lower parts. As in the case of concentrations, the composition of the soil solution was also affected by plant growth: the activity ratio...