Responses of photosynthetic capacity to soil moisture gradient in perennial rhizome grass and perennial bunchgrass
نویسندگان
چکیده
منابع مشابه
Soil Nutrient Heterogeneity Alters Competition between Two Perennial Grass Species
Differences in root foraging behavior between species have been well documented, but the effects of these differences on belowground competitive ability are only beginning to be studied. Here we report the results of a competition experiment in homogeneous and heterogeneous soils between two species that differ in their ability to acquire nutrients from patchy environments. The perennial grasse...
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Density dependence and, therefore, K (carrying capacity, equilibrium population size) are central to understanding and predicting changes in population size (N). Although resource levels certainly fluctuate, K has almost always been treated as constant in both theoretical and empirical studies. We quantified temporal variation in K by fitting extensions of standard population dynamic models to ...
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Most life history studies assume that demographic transition rates within a population are temporally and spatially invariant. A violation of these assumptions may have important consequences in the analysis of long-term processes such as population growth and stability. To examine the potential problems, I studied the demography of a size-classified population of Danthonia sericea, a long-live...
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In recent years there has been significant interest in harvesting renewable fuels and value-added chemicals from plant feedstocks, especially from perennial grasses such as Arundo donax L. [1, 2, 3]. Some reasons why perennial grasses are desirable as next-generation bioenergy feedstock are: (i) their low soil management requirements and growth on marginal land; (ii) their ability to prevent so...
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ژورنال
عنوان ژورنال: BMC Plant Biology
سال: 2011
ISSN: 1471-2229
DOI: 10.1186/1471-2229-11-21