Southern sloping field turf water channel space ecological niche optimal configuration method

A technology of optimal configuration and spatial ecology, applied in the field of farmland non-point source pollution control, can solve agricultural non-point source pollution and other problems, and achieve the effect of strong operability, low investment cost and simple method

Inactive Publication Date: 2017-06-13
HUAZHONG AGRI UNIV
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Problems solved by technology

Due to the large slope of cultivated land, thin soil layer, and poor soil, farmers use excessive chemical fertilizers and pesticides in order to increase the yield of food crops. Under the influence of southern climate and rainfall conditions, soil erosion increases year by year, directly resulting in a large amount of nitrogen, phosphorus, and sediment. into water bodies, causing severe agricultural non-point source pollution

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  • Southern sloping field turf water channel space ecological niche optimal configuration method
  • Southern sloping field turf water channel space ecological niche optimal configuration method
  • Southern sloping field turf water channel space ecological niche optimal configuration method

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Embodiment Construction

[0024] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0025] see figure 1 , which is a flow chart of a method for optimizing the ecological niche configuration of the southern slope farmland turf waterway space provided by the first embodiment of the present invention, mainly includes the following steps:

[0026] S11: Delineate the waterway area: select the land area 3-10 meters away from the outlet of the diversion waterway as the construction area of ​​the channel buffer zone. The best location for the waterway area is a depression or a natural drainage ditch. If there is no natural drainage in the field Drainage ditches need to be excavated;

[0027] S12: Adjust the slope of the constructed waterway to 1-5°, adjust the cross-section of the water passage to be a pa...

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Abstract

The invention discloses a southern sloping field turf water channel space ecological niche optimal configuration method. The method comprises the following steps: (S1) a water channel area is set; (S2) the gradient, the size and the shape of an earth surface built with a water channel are adjusted; (S3) grass varieties suitable for local weathers are selected to form a grass band; the planting density is increased; and organic fertilizers are applied as bottom fertilizers; (S4) determination of a biocoenosis construction plan: herbaceous plant varieties are selected and population distribution areas are adjusted according to optimal configuration plans; and the grass band is uniformly and continuously planted in the same one trench; (S5) straw bags or non-woven cloth are covered after sowing for manual management to prevent invasion of other plant varieties and manual artificial destruction and to control the pest and disease damage so as to guarantee stability of an ecological buffer zone of the trench; and (S6) the grass band is cut.

Description

technical field [0001] The invention relates to the field of farmland non-point source pollution control, in particular to a method for constructing a turf waterway by optimizing the spatial niche configuration of grass seeds to prevent and control agricultural non-point source pollution of cultivated land on a southern slope. Background technique [0002] Due to the unique natural conditions in the southern red soil hilly area, such as staggered mountains and hills, large terrain fluctuations, concentrated rainfall, heavy rainstorm intensity, strong weathering, high population density, and prominent human-land conflicts, etc., provide favorable conditions for the occurrence of water and soil erosion. condition. [0003] According to statistics, 12% of the cultivated land in the southern red soil hilly area, about 33,000 km 2 It belongs to the sloping cultivated land reclaimed along the slope, and is widely distributed. Due to the large slope of cultivated land, thin soil ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B1/00E02B11/00A01G1/00
CPCA01G22/00E02B1/00E02B11/00
Inventor 张喜风孙嘉成史志华李朝霞
Owner HUAZHONG AGRI UNIV
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