Journal of Resources and Ecology ›› 2022, Vol. 13 ›› Issue (3): 528-536.DOI: 10.5814/j.issn.1674-764x.2022.03.017
• Some Hot Topics in Ecology and Resources Use (Guest Editors: MIN Qingwen, SHI Peili) • Previous Articles Next Articles
WANG Jingsheng1,2,*(), CAO Kaili1,3, LIU Wenjing2, YANG Xiao2
Accepted:
2022-10-19
Online:
2022-05-30
Published:
2022-04-18
Contact:
WANG Jingsheng
Supported by:
WANG Jingsheng, CAO Kaili, LIU Wenjing, YANG Xiao. Advancement of the Qianyanzhou Mode in the New Period[J]. Journal of Resources and Ecology, 2022, 13(3): 528-536.
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URL: http://www.jorae.cn/EN/10.5814/j.issn.1674-764x.2022.03.017
Year | Arable land | Woodland | Orchard | Artificial grassland | Aquaculture water area | Wasteland and hills |
---|---|---|---|---|---|---|
1982 | 21.7 | 0.9 | 0 | 0.1 | 0.1 | 175.2 |
1988 | 17.8 | 120.7 | 27.3 | 7.1 | 6.0 | 18.3 |
Table 1 Comparison of the main indicators before and after the development of Qianyanzhou (Unit: ha)
Year | Arable land | Woodland | Orchard | Artificial grassland | Aquaculture water area | Wasteland and hills |
---|---|---|---|---|---|---|
1982 | 21.7 | 0.9 | 0 | 0.1 | 0.1 | 175.2 |
1988 | 17.8 | 120.7 | 27.3 | 7.1 | 6.0 | 18.3 |
Experimental design | Initial weight (g) | 40-day weight (g) | Weight gain relative to control (%) |
---|---|---|---|
Conventional feed (control) | 303.57 | 524.67 | - |
Conventional+15% fresh leaves | 303.57 | 588 | 12.07 |
Conventional+15% fermented powder | 303.57 | 592.25 | 12.88 |
Conventional+15% unfermented powder | 303.57 | 629.21 | 19.92 |
Table 2 Comparison and analysis of the effects of adding hybrid paper mulberry to grass carp feed
Experimental design | Initial weight (g) | 40-day weight (g) | Weight gain relative to control (%) |
---|---|---|---|
Conventional feed (control) | 303.57 | 524.67 | - |
Conventional+15% fresh leaves | 303.57 | 588 | 12.07 |
Conventional+15% fermented powder | 303.57 | 592.25 | 12.88 |
Conventional+15% unfermented powder | 303.57 | 629.21 | 19.92 |
Project | Company + farmer | Scale business households | Rice monoculture | |
---|---|---|---|---|
Cash | Expense | -23.58 | -23.83 | -14.85 |
Income | 33.35 | 35.12 | 18.67 | |
Net income | 9.77 | 11.29 | 3.82 | |
Cost-benefit ratio | 0.01 | 0.02 | 0.01 | |
Value of ecosystem service functions | Positive value | 36.13 | 36.32 | 28.28 |
Negative value | -3.29 | -3.29 | -4.71 | |
Net value | 32.84 | 33.03 | 23.57 | |
Net ecological and economic benefits | 42.61 | 44.32 | 27.39 | |
Comprehensive cost-benefit ratio | 0.03 | 0.03 | 0.01 |
Table 3 Costs and benefits of the paddy shrimp farming mode and rice monoculture (Unit: USD ha-1 )
Project | Company + farmer | Scale business households | Rice monoculture | |
---|---|---|---|---|
Cash | Expense | -23.58 | -23.83 | -14.85 |
Income | 33.35 | 35.12 | 18.67 | |
Net income | 9.77 | 11.29 | 3.82 | |
Cost-benefit ratio | 0.01 | 0.02 | 0.01 | |
Value of ecosystem service functions | Positive value | 36.13 | 36.32 | 28.28 |
Negative value | -3.29 | -3.29 | -4.71 | |
Net value | 32.84 | 33.03 | 23.57 | |
Net ecological and economic benefits | 42.61 | 44.32 | 27.39 | |
Comprehensive cost-benefit ratio | 0.03 | 0.03 | 0.01 |
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