作者: J. E. Varner
DOI: 10.1105/TPC.7.7.795
关键词: Scale (chemistry) 、 Civilization 、 Cropping 、 Ecology 、 Desertification 、 Primary producers 、 Monoculture 、 Topsoil 、 Natural resource economics 、 Biology 、 Food chain
摘要: Photosynthetic organisms are the principal primary producers on Earth. Our dependence these power plants is total. lifestyles, and lifestyles of all other consumers in food chain, derive from our positions with respect to sources. In addition, green (I include algae under this term) provide base for much civilization as we go about business deriving food, shelter, clothing, toys, tools, medicines them. A stable requires a relationship between man plants. recent decades, it has become apparent that collective threaten stability relationship. Ozone layer depletion, increased UV irradiation, desertification, topsoil loss, injury long-established ecologies, monoculture cropping, overfertilization some stresses now placed On an evolutionary time scale, onset instantaneous. And because do not know enough their interactions environment predict effects such stresses, simply what net consequences plants’ responses sudden changes will be. What grown remarkably last 50 years. Many aspects increase knowledge reviewed special issue THE PLANT CELL. essay, I shall try introduction broader issues raised by reviews.