Conservation Agriculture
Conventional agriculture has largely been characterized by tillage, which leaves soil vulnerable to erosion. Continuous use of conventional farming practices with conventional tillage and burning crop residues has degraded the soil resource base and intensified soil degradation, with concomitant...
Đã lưu trong:
| Những tác giả chính: | , |
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| Định dạng: | Sách |
| Ngôn ngữ: | English |
| Được phát hành: |
Springer
2015
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| Những chủ đề: | |
| Truy cập trực tuyến: | https://scholar.dlu.edu.vn/thuvienso/handle/DLU123456789/57279 |
| Các nhãn: |
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| Thư viện lưu trữ: | Thư viện Trường Đại học Đà Lạt |
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| Tóm tắt: | Conventional agriculture has largely been characterized by tillage, which leaves
soil vulnerable to erosion. Continuous use of conventional farming practices with
conventional tillage and burning crop residues has degraded the soil resource base
and intensified soil degradation, with concomitant decreases in crop production ca
pacity. Soil loss is expected to be a critical issue for global agricultural production
under conventional farming practices. For instance, global erosion rates from con
ventionally ploughed agricultural fields averaged one to two orders of magnitude
greater than erosion under native vegetation, long-term geological erosion and rates
of soil production. Likewise, conventional tillage has also made agriculture a major
contributor to global warming due to increasing greenhouse gas emissions. Soil and
vegetation on the earth’s land surface store three times as much carbon as is present
in the earth’s atmosphere. Land clearing and degradation turn this valuable carbon
sink into a major source of greenhouse gas emissions... |
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