SOIL SEED BANKS IN TWO TROPICAL FOREST TYPES: ON THE RELEVANCE OF SAMPLING DEEP SOIL LAYERS
نویسندگان
چکیده
منابع مشابه
Long-term persistence of pioneer species in tropical rain forest soil seed banks.
In tropical forests, pioneer tree species regenerate from seeds dispersed directly into canopy gaps and from seeds that persisted in soil seed banks before gap formation. Life-history models have suggested that selection for the long-term persistence of tree seeds in the soil should be weak because persistence potentially reduces population growth rate by extending generation time and because a...
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Our main aim was to determine the contribution of the seed bank to vegetation regeneration following a disturbance consisting in a deep ploughing and a thorough homogenisation of a perennial grassland. In the seed bank prior to disturbance, seed distribution through the vertical soil profile was evaluated to determine the initial seed species structure. Then, several characteristics of the shal...
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Precipitation and temperature are important drivers of soil respiration. The role of moisture and temperature are generally explored at seasonal or inter-annual timescales; however, significant variability also occurs on hourly to daily time-scales. We used small (1.54 m(2)), throughfall exclusion shelters to evaluate the role soil moisture and temperature as temporal controls on soil CO2 efflu...
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ژورنال
عنوان ژورنال: International Journal of Agriculture, Environment and Bioresearch
سال: 2020
ISSN: 2456-8643
DOI: 10.35410/ijaeb.2020.5593