A comparison of soil fertility and leaf nutrient status of sugar maples (Acer saccharum) in relation to microrelief in two maple forests in Québec
نویسندگان
چکیده
منابع مشابه
comparison of the amount of debris extruded apically in two rotary techniques: flexmaster and m2
چکیده ندارد.
15 صفحه اولmorphology, geochemistry, mineralogy, and micromorphology of soils of hormozgan province in relation to parent materials
ویژگی های زمین شیمیایی، کانی شناسی، و میکرومورفولوژیکی خاک ها و سنگ مادر مربوطه در منطقه بین بخش های جنوبی زاگرس و خلیج فارس تا دریای عمان(استان هرمزگان، ایران) مورد بررسی قرار گرفت. هدف های این مطالعه شناسایی تغییرات در خصوصیات فیزیکی، شیمیایی، و ترکیب کانی شناسی خاک، مطالعه میکرومورفولوژی و تکامل خاک، و بررسی توزیع عنصر خاک بر اساس هوازدگی، پروسه های خاک و زمین شناسی جهت توصیف اثرات مواد مادر...
15 صفحه اولRelationships Between Soil Salinity, Sap- Sugar Concentration, and Health of Declining Roadside Sugar Maples (Acer saccharum)
A study of 50 sugar maples {Acer saccharum) along Gates Mills Boulevard in Gates Mills, Ohio, showed that a tree's sap-sugar concentration tended to increase with decreasing tree health and increasing soil salt concentration. Relative tree health was determined by growth ring analysis. Salt concentration in soil was determined by measuring soil extract conductivity. Extract conductivity correla...
متن کاملa synchronic and diachronic approach to the change route of address terms in the two recent centuries of persian language
terms of address as an important linguistics items provide valuable information about the interlocutors, their relationship and their circumstances. this study was done to investigate the change route of persian address terms in the two recent centuries including three historical periods of qajar, pahlavi and after the islamic revolution. data were extracted from a corpus consisting 24 novels w...
15 صفحه اولLight drives vertical gradients of leaf morphology in a sugar maple (Acer saccharum) forest.
Leaf mass per area (LMA, g m(-2)) is an essential trait for modeling canopy function due to its strong association with photosynthesis, respiration and leaf nitrogen. Leaf mass per area, which is influenced by both leaf thickness and density (LMA = thickness × density), generally increases from the bottom to the top of tree canopies, yet the mechanisms behind this universal pattern are not yet ...
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ژورنال
عنوان ژورنال: Canadian Journal of Soil Science
سال: 2002
ISSN: 0008-4271,1918-1841
DOI: 10.4141/s01-004