CN103015381A - Open trench control drainage device for rice-wheat crop rotation farmlands - Google Patents
Open trench control drainage device for rice-wheat crop rotation farmlands Download PDFInfo
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- CN103015381A CN103015381A CN2012105649156A CN201210564915A CN103015381A CN 103015381 A CN103015381 A CN 103015381A CN 2012105649156 A CN2012105649156 A CN 2012105649156A CN 201210564915 A CN201210564915 A CN 201210564915A CN 103015381 A CN103015381 A CN 103015381A
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- lock chamber
- rice
- crop rotation
- wheat crop
- farmland
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Abstract
The invention provides an open trench control drainage device for rice-wheat crop rotation farmlands. The device comprises a lock chamber, wherein the lock chamber is divided into upper and lower layers, and wing walls are respectively distributed at two ends of the lock chamber; a culvert pipe is distributed in the lower layer of the lock chamber, and a gate is arranged at the front end of the culvert pipe in the lower chamber; an overflow tank is formed into the upper layer of the lower chamber, and dam troughs are oppositely distributed at two sides of the wall at the rear end of the overflow tank; and a water retaining weir plate is inserted into the dam trough. Through the device, the retention time of the farmland drainage in the trench is increased, so that the pollutants in the trench are absorbed, adsorbed and degraded; the downstream water body pollution can be reduced; and the water eutrophication can be controlled. Because the device is permanently and fixedly arranged at the rear end of a drainage trench, the improvement on a drainage system of rice-wheat crop rotation can be avoided, and the water conservancy cost of the farmland is greatly reduced. The device is low in construction cost and maintenance cost, compact in structure, simple to operate, and easy for promoting in large area.
Description
Technical field
The present invention relates to the agricultural drain technical field, specifically a kind of by terminal layout lock and weir in the open drain, thus dewatering installation is controlled in the open drain that is applicable to rice wheat crop rotation farmland.
Background technology
At present, the cropping pattern of rice wheat crop rotation is adopted in a lot of areas of China.Although the technology of control draining aspect, rice field is also arranged, do not consider two kinds of crops of paddy and wheat to the difference of field water demand, at the rice joint control dewatering installation is installed, be beneficial to draining and need to remove in wheat season, prevent that wheat is steeped.In addition, the discharging of the pollution of area source in rice field also is the key factor of the body eutrophications such as river, lake.When the Different Crop crop rotation, need to control to the agricultural drain open drain relevant issues such as raising growth period duration of rice WUEL and reduction farmland pollution of area source discharging.
Summary of the invention
The present invention is directed to above-mentioned deficiency a kind of open drain control dewatering installation that is applicable to rice wheat crop rotation farmland is provided.
The present invention adopts following technical scheme:
A kind of open drain control dewatering installation that is applicable to rice wheat crop rotation farmland of the present invention: comprise lock chamber, described lock chamber is upper and lower two-layer, and aileron is arranged respectively at the two ends of lock chamber; Arrange culvert pipe in the lock chamber lower floor, the front end of lock chamber endoprosthesis arranges gate; The upper strata of lock chamber is bypass channel, the body of wall both sides positioned opposite weir notch of bypass channel end; The dash weir plate is plugged on weir notch.
The open drain control dewatering installation that is applicable to rice wheat crop rotation farmland of the present invention, described dash weir plate is plug-in type adjustable water level control weir plate.
Beneficial effect
The open drain control dewatering installation that is applicable to rice wheat crop rotation farmland provided by the invention has taken into full account two kinds of crops of paddy and wheat under the rice wheat rotation system to the difference of field water demand and the crop different growing difference to water demand.In Period of paddy planting, gate keeps normally off, and culvert pipe also cuts out thereupon, thereby raises groundwater table to a certain extent, has improved the utilization rate of moisture, also can reduce the farmland pollution of area source simultaneously; When water level was uprushed (such as heavy rain) when the farmland, draining according to actual needs can open the sluices.In phase, gate is opened at wheat planting, in time gets rid of the excessive moisture in farmland, avoids wheat to be subject to the stain evil.
Open a sluice gate at set intervals draining, increase the time of staying of agricultural drain in ditch, so that pollutant is adsorbed and degraded by plant absorbing, bed mud, can reduce the downstream water body pollution in ditch, help to control body eutrophication.Because the present invention is permanently affixed at the gutter end, when having avoided the crop rotation of rice wheat to the transformation of drainage system, thereby greatly save the irrigation and water conservancy cost.This unit engineering cost and maintenance cost are low, and compact conformation is simple to operate, is easy to spread.
Description of drawings
Fig. 1 is dewatering installation overall structure schematic diagram of the present invention;
Fig. 2 is that dewatering installation of the present invention is faced structural representation;
Fig. 3 is dewatering installation plan structure schematic diagram of the present invention;
Fig. 4 is dewatering installation side-looking structural representation of the present invention;
Fig. 5 is dewatering installation overfall plated construction schematic diagram of the present invention;
1 is gate among the figure, the 2nd, and lock chamber, the 3rd, dash weir plate, the 4th, weir notch, the 5th, culvert pipe, the 6th, aileron.
The specific embodiment
The present invention is described in more detail below in conjunction with accompanying drawing:
As shown in the figure: a kind of open drain control dewatering installation that is applicable to rice wheat crop rotation farmland: comprise lock chamber 2, described lock chamber 2 is upper and lower two-layer, and aileron 6 is arranged respectively at the two ends of lock chamber 2; Arrange culvert pipe 5 in lock chamber 2 lower floors, the front end of lock chamber 2 endoprosthesises 5 arranges gate 1; The upper strata of lock chamber 2 is bypass channel, the body of wall both sides positioned opposite weir notch 4 of bypass channel end; Dash weir plate 3 is plugged on weir notch 4.Dash weir plate 3 is plug-in type adjustable water level control weir plate.The lock chamber main body adopts concreting, is permanently affixed at the gutter end.
In Period of paddy planting since paddy growth institute water requirement large, need save agricultural drain, gate 1 is in normally off, this moment, culvert pipe 5 cut out, and had avoided water loss, can raise groundwater table, had improved the utilization rate of moisture.The difference that corresponding groundwater table control requires according to the paddy rice different growing, select the dash weir plate 3 of suitable height to place in the weir notch 4, when water level is increased to when flushing with dash weir plate 3 tops, current cover dash weir plate 3 tops and overflow, thereby guarantee that the water level in the farmland is unlikely to too high.Prominent when causing farmland water level surge when heavy rain, can also temporarily open the sluices and 1 accelerate drainage speed, guarantee that the field water level is normal.
In phase, gate 1 is opened always at wheat planting, and the normal draining in gutter can prevent effectively that the wheat waterflooding is steeped, thereby guarantees the output of wheat.
In addition, in Period of paddy planting, agricultural drain holds a period of time in ditch, within this time period, pollutant is adsorbed and degraded by plant absorbing, bed mud in ditch, so that farmland water is purified, and can partly cover the farmland, be conducive to the growth of crop, also can reduce the pollution to the downstream water body, the control body eutrophication.After preliminary purification, open the sluices and 1 carry out draining, then closed shutter 1, continues to hold agricultural drain.
The undeclared part that relates among the present invention is same as the prior art or adopt prior art to be realized.
Claims (2)
1. dewatering installation is controlled in an open drain that is applicable to rice wheat crop rotation farmland: it is characterized in that: comprise lock chamber (2), described lock chamber (2) is upper and lower two-layer, and aileron (6) is arranged respectively at the two ends of lock chamber (2); Arrange culvert pipe (5) in lock chamber (2) lower floor, the front end of lock chamber (2) endoprosthesis (5) arranges gate (1); The upper strata of lock chamber (2) is bypass channel, the body of wall both sides positioned opposite weir notches (4) of bypass channel end; Dash weir plate (3) is plugged on weir notch (4).
2. dewatering installation is controlled in the open drain that is applicable to rice wheat crop rotation farmland according to claim 1, it is characterized in that: described dash weir plate (3) is plug-in type adjustable water level control weir plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105649156A CN103015381A (en) | 2012-12-24 | 2012-12-24 | Open trench control drainage device for rice-wheat crop rotation farmlands |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105649156A CN103015381A (en) | 2012-12-24 | 2012-12-24 | Open trench control drainage device for rice-wheat crop rotation farmlands |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103015381A true CN103015381A (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105649156A Pending CN103015381A (en) | 2012-12-24 | 2012-12-24 | Open trench control drainage device for rice-wheat crop rotation farmlands |
Country Status (1)
| Country | Link |
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| CN (1) | CN103015381A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643142A (en) * | 2018-05-28 | 2018-10-12 | 扬州大学 | It is a kind of can flexible modulation farmland surface and subdrainage intensity integrated control unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2835341Y (en) * | 2005-09-16 | 2006-11-08 | 杨家荣 | Combined culvert pipe gate |
| CN201398787Y (en) * | 2009-04-15 | 2010-02-10 | 刁逸君 | Convenient vegetable soup separation ladle |
| CN201495534U (en) * | 2009-09-11 | 2010-06-02 | 河海大学 | Emptying gate |
| CN202164583U (en) * | 2011-07-23 | 2012-03-14 | 黄河勘测规划设计有限公司 | Culvert gate |
| KR101139511B1 (en) * | 2009-12-16 | 2012-05-02 | (주)덕유 | sluice gate for sluiceways in farming |
| CN102619204A (en) * | 2011-12-05 | 2012-08-01 | 程吉林 | Multiple field matched buildings formed by combining multiple setting members with relevant members thereof |
-
2012
- 2012-12-24 CN CN2012105649156A patent/CN103015381A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2835341Y (en) * | 2005-09-16 | 2006-11-08 | 杨家荣 | Combined culvert pipe gate |
| CN201398787Y (en) * | 2009-04-15 | 2010-02-10 | 刁逸君 | Convenient vegetable soup separation ladle |
| CN201495534U (en) * | 2009-09-11 | 2010-06-02 | 河海大学 | Emptying gate |
| KR101139511B1 (en) * | 2009-12-16 | 2012-05-02 | (주)덕유 | sluice gate for sluiceways in farming |
| CN202164583U (en) * | 2011-07-23 | 2012-03-14 | 黄河勘测规划设计有限公司 | Culvert gate |
| CN102619204A (en) * | 2011-12-05 | 2012-08-01 | 程吉林 | Multiple field matched buildings formed by combining multiple setting members with relevant members thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108643142A (en) * | 2018-05-28 | 2018-10-12 | 扬州大学 | It is a kind of can flexible modulation farmland surface and subdrainage intensity integrated control unit |
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Application publication date: 20130403 |