نتایج جستجو برای: carex acuta
تعداد نتایج: 1743 فیلتر نتایج به سال:
For masses of years, flora and herbs had been an amazing supply meals medication. Surveys performed in indigenous locations discovered that the Sida acuta many regional conventional usages. This broom weed is a perennial plant produces slightly woody stems harvested from wild as source local medicine fiber. In tropical countries, people used this to treat common illnesses which include fever, h...
Native species are generally thought not to encroach on adjacent natural forest without human intervention. However, the phenomenon that native moso bamboo may encroach on surrounding natural forests by itself occurred in China. To certificate this encroaching process, we employed the transition front approach to monitor the native moso bamboo population dynamics in native Chinese fir and everg...
1 A reservation-based autonomous intersection control system, named Autonomous Control of 2 Urban TrAffic (ACUTA) is presented in this paper. ACUTA manages autonomous vehicles in 3 the vicinity of an intersection to allow them to pass the intersection without any conflict and few 4 stops. To address the operational issues identified in previous studies on reservation-based 5 autonomous intersec...
We examined the ̄oristic signi®cance of soil seed banks in relation to valley, midslope and ridge sites in a 70±90-year old forest in northeastern Connecticut. A-horizon mineral soils were collected to 5 cm depth in the early spring from forest understory sites across the topography. Samples from each of the sites were exposed to full sun within a greenhouse. Records of germination were made at...
Wetlands are one of the most important ecosystems on Earth. There is an urgent need to quantify the biophysical parameters (e.g., plant height, aboveground biomass) and map total remaining areas of wetlands in order to evaluate the ecological status of wetlands. In this study, Environmental Satellite/Advanced Synthetic Aperture Radar (ENVISAT/ASAR) dual-polarization C-band data acquired in 2005...
Metal adsorption and surface charge determinations were performed previously on well-characterised Sphagnum and Carex peat samples. The aim of this investigation was to determine metal adsorption from complex wastewaters onto these peat samples and compare it to the adsorption onto peat granules, clinoptilolite, glauconite and a flue dust from steel production. A sulphide mine leachate, a landf...
Aspilia africana and Sida acuta are two plant species that widely distributed across Africa used in traditional medicine for various ailments. In this study, we aimed to compare their ecological characteristics phytochemical constituents. Field surveys were conducted selected sites Nnamdi Azikiwe University, Awka, Nigeria assess the distribution abundance of species. Data on soil type, rainfall...
We assessed the effects of the elimination of livestock in riparian systems at Hart Mountain National Antelope Refuge in southeastern Oregon, 23 years after the removal of cattle grazing, using 64 photos taken before grazing was removed compared with later retake photos. Two methods were used for this assessment: (1) a qualitative visual method comparing seven cover types and processes and (2) ...
Differing biomass allocation strategy could be a necessary plant-trait associated with invasive weeds in an alien environment. The present study focused on exploring differential biomass allocation pattern as an invasive plant-trait in the two pantropical invasive malvaceous weeds Sida acuta Burm f. and Sida cordifolia L. in an anthropic peri-urban vegetation in Indian dry tropics. Eighty plant...
Ocean acidification (OA) is predicted to reduce reef coral calcification rates and threaten the long-term growth of coral reefs under climate change. Reduced coral growth at elevated pCO2 may be buffered by sufficiently high irradiances; however, the interactive effects of OA and irradiance on other fundamental aspects of coral physiology, such as the composition and energetics of coral biomass...
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