Identifying prioritized planting areas for medicinal plant Thesium chinense Turcz. under climate change in China

2021 ◽  
pp. 101459
Author(s):  
Xinggang Tang ◽  
Yingdan Yuan ◽  
Lingjian Wang ◽  
Sirun Chen ◽  
Xin Liu ◽  
...  
2021 ◽  
Author(s):  
Rupali Sharma ◽  
Hukum Singh

Abstract Human-induced CO2 emissions since the preindustrial era have accumulated CO2 in the atmosphere which has influenced the plant structure and function including bio-chemical constituents of the plant system. The Himalayan vegetation has been predicted to be more vulnerable and sensitive to climate change. However, it is still not well documented that how atmospheric CO2 concentration will change the biochemical constituents considering nutrients status of Himalayan endangered plants in future climate change. Hence, we examined the impacts of elevated CO2 concentrations (ambient- ~ 400, 600, and 800 µmol CO2 mol− 1) on biochemical constituents (chlorophyll, carotenoids, ascorbic acid, protein, and total sugars and carbon partitioning) and nutrients response (potassium, phosphorus, and magnesium) in leaf, stem and root tissue of Asparagus racemosus Willd. (an endangered medicinal plant species of Himalayas). The results showed that the elevated CO2 concentration significantly (p ≤ 0.05) enhanced the chlorophyll, protein, total sugars, and carbon accumulation conversely diminished ascorbic acid in leaf tissues. The nutrients accumulation especially potassium and magnesium were significantly (p ≤ 0.05) improved while phosphorus accumulation suppressed under elevated CO2 concentration. Moreover, elevated CO2 notably altered protein, sugars, carbon, and nutrients partitioning in plant tissues viz. leaf, stem, and root of A. racemosus. The fate of rising atmospheric CO2 concentrations beyond 800 µmol CO2 mol− 1 will require much more study. Further studies are needed to understand the impacts of elevated CO2 concentration as well as a combination with other associated climatic variables on biochemical response particularly bioactive ingredients/health-promoting substances and nutrient profiling of this and other endangered medicinal plant species for improving livelihood support of the society.


2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Ripu M. Kunwar ◽  
Mina Lamichhane Pandey ◽  
Laxmi Mahat Kunwar ◽  
Ananta Bhandari

The impacts of climate change were severe on indigenous medicinal plant species and their dependent communities. The harvesting calendar and picking sites of these species were no longer coinciding and the changes were affecting harvesters’ and cultivators’ abilities to collect and use those species. Secondary sites: road-heads, wastelands, regenerated forests, and so forth, were being prioritized for collection and the nonindigenous medicinal plant species were being increasingly introduced into the medical repertoire as a substitution and to diversify the local medicinal stock. Acceptance and application of nonindigenous species and sites for livelihood and ethnopharmacopoeias with caution were considered as an important adaptation strategy. Findings on species and site specific accounts urged further researches on medicinal plants, ethnomedicine, and their interrelationship with impacts of climate change.


2019 ◽  
Vol 3 (6) ◽  
pp. 723-729
Author(s):  
Roslyn Gleadow ◽  
Jim Hanan ◽  
Alan Dorin

Food security and the sustainability of native ecosystems depends on plant-insect interactions in countless ways. Recently reported rapid and immense declines in insect numbers due to climate change, the use of pesticides and herbicides, the introduction of agricultural monocultures, and the destruction of insect native habitat, are all potential contributors to this grave situation. Some researchers are working towards a future where natural insect pollinators might be replaced with free-flying robotic bees, an ecologically problematic proposal. We argue instead that creating environments that are friendly to bees and exploring the use of other species for pollination and bio-control, particularly in non-European countries, are more ecologically sound approaches. The computer simulation of insect-plant interactions is a far more measured application of technology that may assist in managing, or averting, ‘Insect Armageddon' from both practical and ethical viewpoints.


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