Elevated CO2, temperature and nitrogen levels impact growth and development of invasive weeds in the Mediterranean region
Küçük Resim Yok
Tarih
2020
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Wiley
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
BACKGROUND Invasive plant species present a serious threat to the environment, as well as human and animal health. An interaction may exist between the climatic changes and invasive plant species. In this 2-year study, we investigated the effects of warming, CO(2)and nitrogen application on the biomass, growth and leaf tissue nitrogen concentration of three invasive weed species. Treatments were: (i) simulated (elevated) CO2(approximately 800-900 ppm); (ii) warming or high temperature (day/night 25/15 degrees C); (iii) simulated (elevated) CO(2)combined with high temperature (CO2= approximately 800-900 ppm; temperature day/night 25/15 degrees C); and (iv) control conditions (CO2= approximately 400-450 ppm; temperature day/night 20/10 degrees C). The doses of nitrogen were: (i) 0 kg ha(-1)(control; low); (ii) 60 kg ha(-1)(medium); and (iii) 120 kg ha(-1)(high). RESULTS Elevated CO(2)and elevated CO(2)combined with high temperature improved biomass and the growth of the tested invasive weed species:Lactuca serriolaL.,Hordeum murinumL. andBromus tectorumL.Nitrogen application had little effect on grasses, whereas the broadleaved weed mostly had a positive response to nitrogen application. Invasive weed species were generally negatively or neutrally affected by warming. CONCLUSION The results of the present study demonstrate that nitrogen fertilization under different climatic conditions improved few of the parameters, whereas elevated CO(2)promoted most of the growth parameters of invasive weeds. Overall, is it concluded that these weeds will be more invasive under climate change conditions. (c) 2020 Society of Chemical Industry
Açıklama
Anahtar Kelimeler
climate change, elevated CO2, global warming, nitrogen pollution, invasive plants
Kaynak
Journal of the Science of Food and Agriculture
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
100
Sayı
13
