Nutrient Use Efficiency of Three Fast Growing Hardwood Species across a Resource Gradient
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چکیده
منابع مشابه
Nutrient Use Efficiency in Three Fast-Growing Tropical Trees
We measured nutrient use efficiency (NPP/nutrient uptake) in three species of tropical trees, Hyeronima alchorneoides, Cedrela odorata, and Cordia alliodora. We tested the prediction that on fertile soils species with very different biomass and nutrient allocation and turnover would converge on a common value of nutrient use efficiency. Due to high soil fertility, nutrient use efficiencies of t...
متن کاملPhotosynthetic nutrient-use efficiency in three fast-growing tropical trees with differing leaf longevities.
Differences in nutrient-use efficiency have been attributed to differences in leaf habit. It has been suggested that evergreens, with their longer-lived leaves, and therefore longer nutrient retention, are more efficient than deciduous species in their use of nutrients. In tropical trees, however, leaf life span is not always a function of whole-tree deciduousness, leading to the proposal that ...
متن کاملnteraction of nutrient resource and crop diversity on resource use efficiency in different cropping systems
introduction conventional operations in fields, soil and water management are not efficient and loss of and damage to the environment are considerable (lal, 2000). crop diversity and understanding the complex interactions between environmental and socioeconomic factors are approaches to make better use of limited resources (tengberg et al., 1998). the most diverse ecosystems have a higher produ...
متن کاملinteraction of nutrient resource and crop diversity on resource use efficiency in different cropping systems
introduction with the continuous growth of world population, degradation and ecological imbalance throughout the world, there is a need to increase agricultural production and environmental protection measures. in this respect, efforts to supply nutrients to the environment are at the head of the programs. one of the ways to approach this goal is the use of intercropping systems (najafi & moham...
متن کاملCalifornia’s Hardwood Resource: Seeds, Seedlings, and Sprouts of Three Important Forest-Zone Species
McDonald, Philip M.; Tappeiner, John C., II. 2002. California’s hardwood resource: seeds, seedlings, and sprouts of three important forest-zone species. Gen. Tech. Rep. PSW-GTR-185. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture; 39 p. Although California black oak, tanoak, and Pacific madrone are the principal hardwood species in the forest zone ...
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ژورنال
عنوان ژورنال: Open Journal of Forestry
سال: 2012
ISSN: 2163-0429,2163-0437
DOI: 10.4236/ojf.2012.24023