Filters: Tags: soil fertility (X)46 results (129ms)
Influence of herbivory, competition and soil fertility on the abundance of Cirsium arvense in acid grassland
Environmental history of agricultural systems can offer a long-term perspective for the discussion on sustainability
Soil microbial activity as an indicator of soil fertility: Long-term effects of municipal sewage sludge on an arid soil.
Presented by Don Spalinger & Nathan WolfThis seminar focuses on our concepts of regulation of nutrient flows through tundra ecosystems and the effect that climate (or weather) has on these processes. Nutrient flow and climate, in turn, should regulate plant phenology and production, and thus caribou behavior and nutrition. We will present some ideas for assessing the landscape patterns of these processes and monitoring their impacts. Finally, we will provide examples of such assessment and monitoring processes from our work in Western Alaska over the past two years.
Population dynamics response of Lupinus arcticus to fertilization, clipping, and neighbour removal in the understory of the boreal forest
The tundra biome is the dominant terrestrial ecosystem of the circumpolar north, and its fate in a rapidly changing climate is of high scientific and socioeconomic concern. One of those concerns is that the majority of caribou herds throughout the circumpolar north are declining, perhaps as a result of climate change. The principal objective of this research is to reveal the connections between soil nutrient cycling, forage quality and caribou habitat selection. This framework is underpinned by the concept that tundra ecosystem productivity is ultimately driven by the thermodynamics of the system induced by climate.
Role of organic matter content and humus quality in the maintenance of soil fertility and in environmental protection
Factors influencing the distribution of medium-sized ground-dwelling mammals in southeastern mainland Australia
Global distribution of cultivable lands: current patterns and sensitivity to possible climate change
Characterization of Montane Cedar-Hardwood Woodlands in the Piedmont and Blue Ridge Provinces of North Carolina
Changes in the nutrient content in Amazonian savanna sandy soils under long-term organic fertilization