Climate Change and Global Crop Productivity
Human activities are creating changes in our earth ecosystem. Emissions of carbon dioxide and other greenhouse gases are increasing. The evidence, using state-of-the-art computer models incorporating as much of the theoretical understanding of the earth’s weather as possible, suggests that global...
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| Những tác giả chính: | , |
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| Định dạng: | Sách |
| Ngôn ngữ: | English |
| Được phát hành: |
CABI
2014
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| Những chủ đề: | |
| Truy cập trực tuyến: | https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/36356 |
| Các nhãn: |
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| Thư viện lưu trữ: | Thư viện Trường Đại học Đà Lạt |
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| Tóm tắt: | Human activities are creating changes in our earth ecosystem. Emissions of
carbon dioxide and other greenhouse gases are increasing. The evidence,
using state-of-the-art computer models incorporating as much of the theoretical
understanding of the earth’s weather as possible, suggests that global
warming is occurring along with shifting patterns of rainfall and incidences
of extreme weather events. The rate of global climate change and warming
expected over the next century is more than has occurred during the past
10,000 years. Changes in global environment will have profound effects and
consequences for natural and agricultural ecosystems and for society as a
whole. These changes could alter the location of the major crop production
regions on the earth. Agricultural productivity is particularly vulnerable to
disruption by weather. In the coming years, we have to produce more food,
fibre and other commodities to cope with increasing population under
diminishing per capita arable land and water and degrading soil resources and
expanding biotic stresses. In addition to the above stringent constraints,
shifting from ‘normal weather’, with its associated extreme events, zones of
crop adaptation and cultural practices required for successful crop production
will also surely change. Also, plant responses to climatic changes are not
uniform and thus there will be winners and losers. Climate and weatherinduced
instability in food and fibre supplies will alter social and economic
stability and regional competitiveness. |
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