Method for establishing nature-simulated ecological farmland
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A construction method and quasi-natural technology, applied in the field of quasi-natural ecological farmland construction, can solve problems such as non-point source pollution, extensive water management, fragile farmland ecosystem, etc., and achieve the effect of reducing pollution load
Inactive Publication Date: 2015-12-09
INST OF AGRI ENVIRONMENT & RESOURCES YUNNAN ACAD OF AGRI SCI
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(Feng Guolu, Yang Renbin. Nitrogen and phosphorus dynamic characteristics and emission reduction potential in paddy field water under different farming modes. Acta Ecologica Sinica, 2011, 31(15): 4236) At present, the non-point source pollution caused by the paddy and dry rotation mode of farmland is becoming more and more serious. Nitrogen and phosphorus fertilizers Excessive input, extensive water management in alternating periods of floods and droughts, low water and nutrient recycling rates, and a single planting structure have resulted in fragile farmland ecosystems, resulting in degradation of farmland ecological self-purification functions, etc.
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Embodiment 1
[0033] As a preference, a pseudo-natural ecological farmland construction method can be used to treat non-point source pollutants in the catchment area on the scale of square kilometers (take the hardened ditch of the farmland A in Yunnan as an example), which includes the following steps:
[0034] Step 1: Build the Farm Field
[0035] Implement rice-garlic crop rotation, according to the customary fertilization amount of rice and garlic, increase the amount of organic fertilizer in the garlic season, replace the amount of single-quality fertilizer with new slow-release fertilizers; try not to apply or apply less chemical fertilizers in the rice season, increase the amount of organic fertilizer, and expand farmland Composite function, after the rice season turns green, timely strengthen the technical measures of paddy field breeding, build duck sheds, put duck seedlings, etc.
[0036] Step 2: Build the Ridge
[0037] For the planting of the farmland buffer zone, the field rid...
Embodiment 2
[0047] As a preference, a quasi-natural ecological farmland construction method can be used to treat non-point source pollutants in the catchment area on the scale of square kilometers (taking the hardened ditches of farmland B in Yunnan as an example), which includes the following steps:
[0048] Step 1: Build the Farm Field
[0049] Implement rice-garlic crop rotation, according to the customary fertilization amount of rice and garlic, increase the amount of organic fertilizer in the garlic season, replace the amount of simple fertilizer with new slow-release fertilizer; try not to apply or apply less chemical fertilizer in the rice season, and increase the amount of organic fertilizer. Build a farmland soil "carbon dam"; expand the complex functions of the farmland, strengthen the technical measures of rice field breeding in a timely manner after the rice season turns green, build duck sheds, put duck seedlings, etc.
[0050] The construction of soil carbon dams in farmland...
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Abstract
The invention belongs to the field of agricultural environmental protection, and particularly relates to a method for establishing nature-simulated ecological farmland. According to the method, the farmland, trenches, a tractor-ploughing road, farmland buffer zones and a buffer purification pool are established; on the basis of a farmland production function, a farmland ecological function is further exerted, the farmland is utilized for consumption and sinks of environmental nitrogen and phosphorus; through soil carbon sinks on the farmland and biodiversity, non-point source pollution to the farmland is controlled. Through adoption of the method, the functions of the farmland, farmland ridges, the trenches, the tractor-ploughing road and the buffer purification pool in a whole compound system are optimized; the farmland biodiversity is improved, and a farmland planting and breeding compound function and a pollution source control function are extended; farmland ridge buffering, beautifying and economic functions are added, and the non-point source pollution self-purification capability of the farmland is enhanced; the trenches are hardened through ecologicalization, and nitrogen and phosphorus nutrients can be recycled; interception and purification of the non-point source pollution to the farmland are regulated and controlled; an ecological corridor is established, farmland landscapes are beautified, and the ecological value of the farmland is improved.
Description
technical field [0001] The invention belongs to the field of agricultural environmental protection, and in particular relates to a method for constructing a pseudo-natural ecological farmland. Background technique [0002] Among the surface water pollutants in my country, non-point source pollution accounts for a large proportion. More than 50% of nitrogen and more than 30% of phosphorus in lakes come from agricultural non-point source pollution. (Feng Guolu, Yang Renbin. Nitrogen and phosphorus dynamic characteristics and emission reduction potential in paddy field water under different farming modes. Acta Ecologica Sinica, 2011, 31(15): 4236) At present, the non-point source pollution caused by the paddy and dry rotation mode of farmland is becoming more and more serious. Nitrogen and phosphorus fertilizers Excessive input, extensive water management during floods and droughts, low water and nutrient recycling rate, and a single planting structure have resulted in fragile ...
Claims
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