Patterns of seedling establishment in an old field
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چکیده
منابع مشابه
Climate Change Alters Seedling Emergence and Establishment in an Old-Field Ecosystem
BACKGROUND Ecological succession drives large-scale changes in ecosystem composition over time, but the mechanisms whereby climatic change might alter succession remain unresolved. Here, we asked if the effects of atmospheric and climatic change would alter tree seedling emergence and establishment in an old-field ecosystem, recognizing that small shifts in rates of seedling emergence and estab...
متن کاملAn investigation on the effect of shape and size of pits on early establishment of wild pistachio (Pistacia vera L) seedlings in Khajeh Kalat woodland
The aim of this study was to find the most efficient methods for restoring wild pistachio forests through direct seeding and by seedling planting in the woodlands of Khajeh Kalat in Khorasan Razavi. Two planting methods and two pit shapes and four pit sizes were tested. Basin pit sizes were (control, 20, 50, and 100 cm but curve shaped pits were at (control, planting seedlings at ground level),...
متن کاملFacilitative and Inhibitory Effect of Litter on Seedling Emergence and Early Growth of Six Herbaceous Species in an Early Successional Old Field Ecosystem
In the current study, a field experiment was conducted to examine effects of litter on seedling emergence and early growth of four dominant weed species from the early successional stages of old field ecosystem and two perennial grassland species in late successional stages. Our results showed that increased litter cover decreased soil temperature and temperature variability over time and impro...
متن کاملPlanting Methods and Seedling Establishment of Artemisia sieberi Besser: Seeds Collected from Isfahan Kolah Ghazi Sagebrush Vegetations
Wormwood sagebrush (Artemisia sieberi Besser) is one of the most widely distributed shrub species in Iran and Turkistan steppes, its establishment on dry lands has generally been proven difficult because of low seedling vigor, inability to compete with herbaceous species, poor seed quality, and altered edaphic conditions. In order to evaluation of planting methods and seedling establishment, se...
متن کاملImproving field establishment of safflower in soils infected by Phytophthora drechsleri and Pythium ultimum
One of the major field constraints to seed production in safflower has proven tobe soil born pathogens, Phytophthora drechsleri and Pythium ultimum. In order toevaluate the efficiency of a field-laboratory selection method to improve resistanceof safflower against soil born pathogens, Ph. drechsleri and P. ultimum, a two-yearinvestigation was conducted. The results showed that selection is an e...
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تاریخ انتشار 2017