CN104895027A - Self-circulated and ecological water saving type irrigating draining system and draining method - Google Patents

Self-circulated and ecological water saving type irrigating draining system and draining method Download PDF

Info

Publication number
CN104895027A
CN104895027A CN201510321022.2A CN201510321022A CN104895027A CN 104895027 A CN104895027 A CN 104895027A CN 201510321022 A CN201510321022 A CN 201510321022A CN 104895027 A CN104895027 A CN 104895027A
Authority
CN
China
Prior art keywords
water
draining
wetland
farm
ditch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510321022.2A
Other languages
Chinese (zh)
Other versions
CN104895027B (en
Inventor
王沛芳
王超
钱进
侯俊
饶磊
俞阳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hohai University HHU
Original Assignee
Hohai University HHU
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hohai University HHU filed Critical Hohai University HHU
Priority to CN201510321022.2A priority Critical patent/CN104895027B/en
Publication of CN104895027A publication Critical patent/CN104895027A/en
Application granted granted Critical
Publication of CN104895027B publication Critical patent/CN104895027B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Hydroponics (AREA)

Abstract

The invention relates to a self-circulated and ecological water saving type irrigating draining system and a draining method. The system is that an internal and external water control gate 2 is arranged between an outer river 1 and a water accumulating wetland area 3; a water pump station 4 is arranged in the water accumulating wetland area 3; a water draining wetland farm ditch 9 is communicated with the water accumulating wetland area 3; the water pump station 4 is connected with an underground water irrigating pipe 5, wherein the underground water irrigating pipe 5 is connected with a water distribution pond 6; the water distribution pond 6 is connected with a water inlet 8; a water distributing head 7 is arranged on the water inlet 8; the water accumulating wetland area 3 is connected with the water draining wetland farm ditch 9; the water draining wetland farm ditch 9 is connected with a draining rill 10; a ridge 11 is arranged between the water draining wetland farm ditch 9 and a farmland 12. The system has the advantages that the water environment for the crops growing is ensured, the utilization rate of water irrigated to the farmland can be increased, and thus the water resource can be effectively saved, and the crops output can be increased; water can be fully exchanged; the water environment mass of the river can be improved; the construction is simple; the popularization and application are convenient; a large amount of construction works can be saved; the system can be widely applied to the farmland.

Description

Self-loopa ecological water saving type irrigation and drainage system and water discharge method
Technical field
What the present invention relates to is a kind of self-loopa ecological water saving type irrigation and drainage system and water discharge method, belongs to irrigation and water conservancy irrigation and drainage technology and agricultural area source control technology and restoration of the ecosystem field.
Background technology
China is the country of a water resource critical shortage, and water utilization rate is also very low simultaneously, and its most reason is caused by the waste of China's agricultural irrigation water.Agricultural water is the water resource of reproducible utilization, how to pass through optimal design and the science layout of irrigation and drainage system with functions, and it is the important channel solving shortage of water resources that the self-loopa realizing farmland-use water utilizes.
In the agricultural drain of irrigated area, because farmland fertilization, spray spraying pesticide etc. produce widespread pollution from the overuse of fertilizers and pesticides in rural area.Widespread pollution from the overuse of fertilizers and pesticides in rural area enters surface water by agricultural drain " sublateral canal-field ditch-lateral canal-branch canal-trunk canal " system.Current widespread pollution from the overuse of fertilizers and pesticides in rural area has become most important and the widest pollution of area source that distributes, is the main cause causing the numerous body eutrophication of China and grain security.How effectively control agricultural non-point pollution thing, particularly poisonous class agricultural chemicals purification is removed is a current farm field irrigation drainage system key technology difficult problem in the urgent need to address.
But analyze domestic and international farm irrigation system and show, the filling drainage technique reaching farmland-use water self-loopa and effective purifying contaminated thing is also rare.Particularly from system perspective, by filling with the reasonable construction of isostere system compared with large scale irrigated area, forming region water resource self-circulating system and the clean dirt of drainage system wetland combine, and reach water saving, clean dirty and that ecologic facies is unified technology there is not yet.
Summary of the invention
What the present invention proposed is a kind of self-loopa ecological water saving type irrigation and drainage system and water discharge method, its object: the Ecosystem Irrigation drainage system building a kind of multi-functional self-loopa, farmland sysrem for different terrain conditions, different land use patterns provides a kind of waterlogging-resistant irrigation and drainage system of drainning off floodwaters, reach the object controlling widespread pollution from the overuse of fertilizers and pesticides in rural area simultaneously, thus reduce the pollution of agricultural area source pollutants confrontation downstream water.
Technical scheme of the present invention: self-loopa ecological water saving type irrigation and drainage system, its structure is inside and outside water control checks 2 between outer river 1 and ponding Humid Area 3, establish in ponding Humid Area 3 is water pump station 4, draining wetland farm ditch 9 communicates with ponding Humid Area 3, irrigation pipe 5 under water pump station 4 ground connection, underground irrigation pipe 5 connects distribution reservoir 6, distribution reservoir 6 taps into the mouth of a river 8, water inlet 8 is established water diversing head 7, run in meadow bog farm ditch 9 in ponding Humid Area 3, draining wetland farm ditch 9 connects farm drainage ditch 10, is ridges 11 between draining wetland farm ditch 9 and field 12.
Its water discharge method, comprises the steps:
1) in farmland sysrem, build ponding Humid Area (3), between ponding Humid Area (3) and outer river (1), build inside and outside water control check (2), for arid with regulate the water yield in ponding Humid Area (3) flood season;
2) the irrigation water body in ponding Humid Area (3) promotes head to underground pipe network (5) of pouring water by water pump station (4) and is conveyed in distribution reservoir (6) corresponding to every block field;
3) field (12) is entered by T-shape water diversing head (7) point water by water inlet (8) again;
4) first drain into farm drainage ditch (10) in field (12) draining, then be flowed to draining wetland farm ditch (9);
5) water body is by wetland plant (15) purification, finally imports wetland plash (3), forms frame type draining and ponding system, when flood discharge is large or dry season amount hour, by inside and outside water control check (2) regulating pondage.
Advantage of the present invention:
1) the present invention is independently self-circulation irrigation drainage system, even arid and flood flooded phase all can run well, ensure that the water environment needed for growth of crops;
2) improve farmland irrigating water use efficiency, effectively saved water resource, improve crop yield;
3) the self-circulation irrigation draining that body series adopts effectively is carried out ecology to the eutrophication moisture of discharging in farmland such as nitrogen phosphorus compound and is absorbed and recycle;
4) agricultural drain current in wetland drainage farm ditch detour increase the time of staying, increase sedimentation effect, the biology on gabion surface can tackle suspension, absorption and assimilation organic matter, through gabion water body and stream water body formed cross-flow, water body is fully exchanged;
5) efficient hardening farmland of the present invention water body self-purification ability, effectively controls widespread pollution from the overuse of fertilizers and pesticides in rural area, improves River water quality;
6) the present invention constructs simply, is convenient to promotion and implementation, not a large amount of capital works, can extensive use in farmland.
Accompanying drawing illustrates:
Accompanying drawing 1 is self-loopa ecological water saving type irrigation and drainage system construction schematic diagram.
Accompanying drawing 1-1 is the partial enlarged drawing of the 2-2 in Fig. 1.
Accompanying drawing 2 is draining wetland farm ditch sectional drawings.
Accompanying drawing 3 is field drainage hair ditch sectional drawings.
In figure, 1 is outer river, and 2 is inside and outside water control checks, and 3 is ponding Humid Areas, and 4 is water pump stations, 5 is underground irrigation pipes, and 6 is distribution reservoirs, and 7 is water diversing heads, 8 is water inlets, and 9 is draining wetland farm ditches, and 10 is farm drainage ditches, 11 is ridges, and 12 is fields, and 13 is farm machinery roads, 14 is agriculture bridges, and 9-1 is gabion, and 9-2 is timber, 10-1 is wire galvanization net bank protection, and 15-1 is plant waterborne, and 15-2 is submerged plant.
Detailed description of the invention
Contrast Fig. 1, self-loopa ecological water saving type irrigation and drainage system, its structure is inside and outside water control checks 2 between outer river 1 and ponding Humid Area 3, establish in ponding Humid Area 3 is water pump station 4, draining wetland farm ditch 9 communicates with ponding Humid Area 3, irrigation pipe 5 under water pump station 4 ground connection, underground irrigation pipe 5 connects distribution reservoir 6, distribution reservoir 6 taps into the mouth of a river 8, water inlet 8 is established water diversing head 7, run in meadow bog farm ditch 9 in ponding Humid Area 3, and draining wetland farm ditch 9 connects farm drainage ditch 10, is ridges 11 between draining wetland farm ditch 9 and field 12.
Contrast Fig. 1-1, being fields 12 between ridge 11, having timber 9-2 in field 12, the indirect gabion 9-1 of two timber 9-2, be submerged plant 15-2, timber 9-2 both sides is plant 15-1 waterborne between gabion 9-1, ridge 11 has wire galvanization net bank protection 10-1,
The water discharge method of self-loopa ecological water saving type irrigation and drainage system: comprise,
1) in farmland sysrem, build ponding Humid Area (3), between ponding Humid Area (3) and outer river (1), build inside and outside water control check (2), for arid with regulate the water yield in ponding Humid Area (3) flood season;
2) the irrigation water body in ponding Humid Area (3) promotes head to underground pipe network (5) of pouring water by water pump station (4) and is conveyed in distribution reservoir (6) corresponding to every block field;
3) field (12) is entered by T-shape water diversing head (7) point water by water inlet (8) again;
4) first drain into farm drainage ditch (10) in field (12) draining, then be flowed to draining wetland farm ditch (9);
5) water body is by wetland plant (15) water purification, finally imports wetland plash (3), forms frame type draining and ponding system.As shown in Fig. 1, Fig. 1-1.
Described draining wetland farm ditch (9) is divided into two-layer, bottom draining hold concurrently gabion (9-1) purification, upper strata is plant (15) water purification; Draining wetland farm ditch (9) adopts the Morphogenesis that longitudinally wriggles, bank slope both sides, river course are sealed with pin (9-2), form new riverbed, between two rows' timber (9-2), place gabion (9-1), bank slope plants slope plants, more than ordinary water level, plants plant waterborne (15-1), such as careless class etc., planting submerged plant (15-2) is planted, such as eel grass, water caltrop, toad's-mouth, hydrilla verticillata etc., to reach better purifying water effect below ordinary water level.As shown in Figure 2.
Described farm drainage ditch (10) is ecological grass ditch, and slope plants planted by wire galvanization net bank protection (10-1), more than ordinary water level plants plant waterborne (15-1), plants planting submerged plant (15-2) below ordinary water level.Farm drainage ditch (10) gets inclination angle to a certain degree, so that draining along journey.As shown in Figure 3.

Claims (6)

1. self-loopa ecological water saving type irrigation and drainage system, it is characterized in that it being inside and outside water control check between outer river and ponding Humid Area, establishing in ponding Humid Area is water pump station, and draining wetland farm ditch communicates with ponding Humid Area, irrigation pipe under water pump station ground connection, underground irrigation pipe connects distribution reservoir, distribution reservoir taps into the mouth of a river, and water inlet establishes water diversing head, and run in meadow bog farm ditch in ponding Humid Area, draining wetland farm ditch connects farm drainage ditch, and draining is wet
Ridge between ground farm ditch and field.
2. self-loopa ecological water saving type irrigation and drainage system according to claim 1, is characterized in that between described ridge it being field, has timber in field, the indirect gabion of two timbers, be submerged plant between gabion, timber both sides are plants waterborne, ridge have wire galvanization net bank protection.
3. self-loopa ecological water saving type irrigation and drainage system according to claim 1, is characterized in that described water inlet arranges the water yield and water quality monitoring apparatus.
4. the water discharge method of self-loopa ecological water saving type irrigation and drainage system as claimed in claim 1, is characterized in that comprising the steps:
1) in farmland sysrem, build ponding Humid Area, between ponding Humid Area and outer river, build inside and outside water control check, for arid with regulate the water yield in ponding Humid Area flood season;
2) the irrigation water body in ponding Humid Area promotes head to underground pipe network of pouring water by water pump station and is conveyed in distribution reservoir corresponding to every block field;
3) water is divided to enter field by water inlet by T-shape water diversing head again;
4) first drain into farm drainage ditch in field drainage, then be flowed to draining wetland farm ditch;
5) water body is by wetland plant water purification, finally imports wetland plash, forms frame type draining and ponding system, when flood discharge is large or dry season amount hour, by inside and outside water control check regulating pondage.
5. the water discharge method of self-loopa ecological water saving type irrigation and drainage system as claimed in claim 4, is characterized in that described draining wetland farm ditch is divided into two-layer, and bottom draining is held concurrently gabion purification, and upper strata is plant water purifying; Draining wetland farm ditch adopts the Morphogenesis that longitudinally wriggles, bank slope both sides, river course are sealed with pin, form new riverbed, between two row's timbers, place gabion, bank slope plants slope plants, more than ordinary water level, plants plant waterborne, such as careless class, planting submerged plant is planted, such as eel grass, water caltrop, toad's-mouth, hydrilla verticillata, to reach better purifying water effect below ordinary water level.
6. the water discharge method of self-loopa ecological water saving type irrigation and drainage system as claimed in claim 4, it is characterized in that described farm drainage ditch is ecological grass ditch, slope plants planted by wire galvanization net bank protection, more than ordinary water level plants plant waterborne, below ordinary water level, plant planting submerged plant; Farm drainage ditch gets an inclination angle along journey, so that draining.
CN201510321022.2A 2015-06-12 2015-06-12 Self-loopa ecological water saving type irrigation and drainage system and water discharge method Expired - Fee Related CN104895027B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510321022.2A CN104895027B (en) 2015-06-12 2015-06-12 Self-loopa ecological water saving type irrigation and drainage system and water discharge method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510321022.2A CN104895027B (en) 2015-06-12 2015-06-12 Self-loopa ecological water saving type irrigation and drainage system and water discharge method

Publications (2)

Publication Number Publication Date
CN104895027A true CN104895027A (en) 2015-09-09
CN104895027B CN104895027B (en) 2017-06-30

Family

ID=54027957

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510321022.2A Expired - Fee Related CN104895027B (en) 2015-06-12 2015-06-12 Self-loopa ecological water saving type irrigation and drainage system and water discharge method

Country Status (1)

Country Link
CN (1) CN104895027B (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105178425A (en) * 2015-09-22 2015-12-23 余姚市人民政府凤山街道办事处 Flood-drainage, water-supplementing and water-changing pump station junction design for cities and towns
CN105297669A (en) * 2015-10-09 2016-02-03 佟保根 Draining and irrigating system
CN105507222A (en) * 2015-11-20 2016-04-20 中国水利水电科学研究院 Irrigation area canal system suitable for water culture of Tibetan region
CN105940962A (en) * 2016-07-12 2016-09-21 习水县龙洋生态食品开发有限公司 Edible mushroom cultivation method
CN106545068A (en) * 2016-11-25 2017-03-29 广东中联兴环保科技有限公司 A kind of method of the soil water reservoir capacity control of ionic type rare earth ore in-situ solvent extraction method abandoned mine land
CN106664863A (en) * 2016-12-14 2017-05-17 广东中联兴环保科技有限公司 Method for reducing outward output of pollutants from ionic type rare earth ore mining site
CN107973494A (en) * 2017-12-29 2018-05-01 中国水利水电科学研究院 A kind of stream entering lake purification of water quality and water resource system for recycling
CN108207524A (en) * 2018-01-30 2018-06-29 宁夏广银米业有限公司 A kind of rice fishing water circulation system
CN108951577A (en) * 2018-06-22 2018-12-07 杭州天顶距土地勘测规划设计有限公司 A kind of farmland feeding/discharging device
CN109423985A (en) * 2017-08-29 2019-03-05 宁夏农林科学院农作物研究所 Agricultural drain system prefabricated components
CN110042795A (en) * 2019-04-20 2019-07-23 浙江园冶生态建设有限公司 A kind of wetland park construction method
CN110183037A (en) * 2019-05-21 2019-08-30 四川大学 A kind of farmland irrigating drainage purified treatment circulatory system
CN113463560A (en) * 2021-08-02 2021-10-01 中电建生态环境设计研究有限公司 Polder area water circulation paddy field non-point source pollution treatment system
CN114711121A (en) * 2022-04-15 2022-07-08 黄河园林集团有限公司 Distributed pipeline system and construction process thereof
RU2785016C1 (en) * 2022-05-24 2022-12-02 Федеральное государственное бюджетное научное учреждение "Российский научно-исследовательский институт проблем мелиорации" (ФГБНУ "РосНИИПМ") Layer-modular drying-humidifying polder system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112127334A (en) * 2020-09-18 2020-12-25 苏州大学 Irrigation drainage system for rural non-point source pollution resource utilization and scheduling operation method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05304845A (en) * 1992-04-30 1993-11-19 Shiroki Corp Underground irrigator with solar water heater
CN102888829A (en) * 2012-11-05 2013-01-23 河海大学 Farmland underground water drainage design method
CN102919102A (en) * 2012-11-19 2013-02-13 河海大学 Irrigation and drainage integrated device suitable for underground high water level
CN203639888U (en) * 2013-11-26 2014-06-11 河海大学 Dual-purpose irrigation and drainage channel
CN104480919A (en) * 2014-10-28 2015-04-01 河海大学 Sewage irrigation system of alternation of wetting and drying with nitrogen and phosphorus removing function
CN104591395A (en) * 2015-01-27 2015-05-06 河海大学 Water-saving and pollution-reducing method for water circulation use in irrigation and drainage coupled ecological irrigation district in flat areas

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05304845A (en) * 1992-04-30 1993-11-19 Shiroki Corp Underground irrigator with solar water heater
CN102888829A (en) * 2012-11-05 2013-01-23 河海大学 Farmland underground water drainage design method
CN102919102A (en) * 2012-11-19 2013-02-13 河海大学 Irrigation and drainage integrated device suitable for underground high water level
CN203639888U (en) * 2013-11-26 2014-06-11 河海大学 Dual-purpose irrigation and drainage channel
CN104480919A (en) * 2014-10-28 2015-04-01 河海大学 Sewage irrigation system of alternation of wetting and drying with nitrogen and phosphorus removing function
CN104591395A (en) * 2015-01-27 2015-05-06 河海大学 Water-saving and pollution-reducing method for water circulation use in irrigation and drainage coupled ecological irrigation district in flat areas

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
朱杰: "高标准农田生态型田间灌排***设计研究", 《万方数据库》 *

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105178425B (en) * 2015-09-22 2017-03-15 余姚市人民政府凤山街道办事处 Cities and towns water drainage, moisturizing, water-change pump station hinge
CN105178425A (en) * 2015-09-22 2015-12-23 余姚市人民政府凤山街道办事处 Flood-drainage, water-supplementing and water-changing pump station junction design for cities and towns
CN105297669A (en) * 2015-10-09 2016-02-03 佟保根 Draining and irrigating system
CN105507222A (en) * 2015-11-20 2016-04-20 中国水利水电科学研究院 Irrigation area canal system suitable for water culture of Tibetan region
CN105940962A (en) * 2016-07-12 2016-09-21 习水县龙洋生态食品开发有限公司 Edible mushroom cultivation method
CN105940962B (en) * 2016-07-12 2019-05-07 习水县龙洋生态食品开发有限公司 A kind of cultivating method for edible fungi
CN106545068A (en) * 2016-11-25 2017-03-29 广东中联兴环保科技有限公司 A kind of method of the soil water reservoir capacity control of ionic type rare earth ore in-situ solvent extraction method abandoned mine land
CN106664863A (en) * 2016-12-14 2017-05-17 广东中联兴环保科技有限公司 Method for reducing outward output of pollutants from ionic type rare earth ore mining site
CN109423985A (en) * 2017-08-29 2019-03-05 宁夏农林科学院农作物研究所 Agricultural drain system prefabricated components
CN107973494A (en) * 2017-12-29 2018-05-01 中国水利水电科学研究院 A kind of stream entering lake purification of water quality and water resource system for recycling
CN108207524A (en) * 2018-01-30 2018-06-29 宁夏广银米业有限公司 A kind of rice fishing water circulation system
CN108951577A (en) * 2018-06-22 2018-12-07 杭州天顶距土地勘测规划设计有限公司 A kind of farmland feeding/discharging device
CN108951577B (en) * 2018-06-22 2020-09-08 杭州天顶距土地勘测规划设计有限公司 Farmland water inlet and outlet device
CN110042795A (en) * 2019-04-20 2019-07-23 浙江园冶生态建设有限公司 A kind of wetland park construction method
CN110183037A (en) * 2019-05-21 2019-08-30 四川大学 A kind of farmland irrigating drainage purified treatment circulatory system
CN113463560A (en) * 2021-08-02 2021-10-01 中电建生态环境设计研究有限公司 Polder area water circulation paddy field non-point source pollution treatment system
CN114711121A (en) * 2022-04-15 2022-07-08 黄河园林集团有限公司 Distributed pipeline system and construction process thereof
CN114711121B (en) * 2022-04-15 2023-11-14 黄河生态建设集团有限公司 Distributed pipeline system and construction process thereof
RU2785016C1 (en) * 2022-05-24 2022-12-02 Федеральное государственное бюджетное научное учреждение "Российский научно-исследовательский институт проблем мелиорации" (ФГБНУ "РосНИИПМ") Layer-modular drying-humidifying polder system

Also Published As

Publication number Publication date
CN104895027B (en) 2017-06-30

Similar Documents

Publication Publication Date Title
CN104895027B (en) Self-loopa ecological water saving type irrigation and drainage system and water discharge method
CN104591395B (en) Plains region fills the water saving of row's coupling Ecological Irrigation District water circulation use and subtracts dirty method
CN104480920B (en) Method using farmland ditch pool systemic control regionality agricultural non -point pollution
CN105659962B (en) Ecological method for abating agricultural non-point source pollution in rice planting regions
CN103803760A (en) Wet land purification system with serially-connected rice field drainage ditches in irrigated area
CN104790698A (en) Irrigated area dry land sheetflow type water drainage, regulation and storage purification wet land built system
CN205973992U (en) A pool storehouse system for controlling agriculture non -point source pollution
CN106365320A (en) Drained water recycling and nitrogen and phosphorus cascaded percolation, blocking and removal system for paddy field on southern gentle slope land and application method of system
CN103733955B (en) Fill system is drenched in the unification of source, ground
CN102493388B (en) Crossed water system construction method for ecologically treating non-point source pollution
CN104628143B (en) Wetland decontamination method for drainage systems in ecological irrigation areas
CN102783284B (en) Method for treating saline-alkali soil through dialysis type high platform ladder grading groove ridge
CN106630155A (en) Construction method of riparian buffer strips for reducing non-point source pollution of broken farmland landscape
CN110183037A (en) A kind of farmland irrigating drainage purified treatment circulatory system
CN104420676B (en) A kind of method for solving widespread pollution from the overuse of fertilizers and pesticides in rural area
CN106702982B (en) A kind of intensive farmland drainage system
CN206337082U (en) Gentle slope paddy field drainage recycle and nitrogen phosphorus step diafiltration intercept removal system
CN103233445A (en) Filtering ecological concrete drainage channel
CN205773645U (en) A kind of water resource for pollution of area source is regulated and stored and purification facility
CN203692091U (en) Land and source integrated sprinkling and irrigating system
CN109319933A (en) A kind of farmland water pollution control and reclaiming system and its operating method
CN216415035U (en) System for complementary low-lying area saline and alkaline land of farming fishing photovoltaic is administered and is utilized
CN105000669A (en) Method for preventing and treating regional area pollution of farmland farming ditch and pond regions
CN206070498U (en) A kind of farmland submerged plant ecological canal for processing early-stage rainwater
CN205348113U (en) Ecological interception system of filler - plant society formula irrigation canals and ditches - bank protection nitrogen phosphorus of can regenerating

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170630

CF01 Termination of patent right due to non-payment of annual fee