CN1823564A - Ecological intercepting method of vegetable field soil nitrogen phosphorus runoff control - Google Patents
Ecological intercepting method of vegetable field soil nitrogen phosphorus runoff control Download PDFInfo
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- CN1823564A CN1823564A CN 200610037908 CN200610037908A CN1823564A CN 1823564 A CN1823564 A CN 1823564A CN 200610037908 CN200610037908 CN 200610037908 CN 200610037908 A CN200610037908 A CN 200610037908A CN 1823564 A CN1823564 A CN 1823564A
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Abstract
A method for controlling the contents of N and P in the soil of vegetable field by ecological interception includes such steps as creating the ecological interception belt between vegetable field and river or lake or pond, planting economic forage grass in it without applying fertilizer, creating the interception ditches between adjacent vegetable fields for irrigation and draining, planting economic forage grass in it, applying leaf fertilizer, and supplying the forage grass for culturing fish.
Description
Technical field
The invention belongs to the agro-ecological engineering field, relate to a kind of vegetable field soil nitrogen phosphorus runoff control ecological intercepting method.This technology is particularly useful for controlling vegetable field soil nitrogen phosphorus runoff and moves to water body.
Background technology
Body eutrophication is the environment difficult problem in world today's scope.Agricultural land soil, chemical fertilizer nitrogen phosphorus runoff are one of main contributors of non-point pollution to the water body migration.Thereby the ecological intercepting of nitrogen phosphorus in the farmland become important content in the Study of Water Environment.At home and abroad in the experience to non-point pollution improvement, ecological engineering is acknowledged as the effective measures that non-point pollution is administered.Wherein technology is comparatively ripe has Vegetative Filter Strips, artificial swamp, ecological canal etc. with the more ecological engineering of application.The ecological canal technology is suitable for controlling the paddy field nitrogen phosphorus runoff and moves to water body.Though artificial swamp is useful for the control paddy field and the nonirrigated farmland nitrogen phosphorus runoff moves to water body, the land occupation area is big, is difficult to apply in the particularly thorny southern area of Jiangsu Province in economically developed people ground.The selected grass seeds of Vegetative Filter Strips does not have follow-up value also to be difficult to be accepted by the peasant.Vegetable field is that the important soil of TAI HU AREA utilizes one of mode.In order to fetch water conveniently, the vegetable plot mainly is distributed in river bank, lakeside or limit, pool.The vegetable field fertilizing amount is several times in paddy field, nonirrigated farmland, and vegetable field is used chemical fertilizer for a long time in a large number, causes the nitrogen phosphorus utilization low, and the nitrogen phosphorus that is absorbed by crop does not enter water body by approach such as runoff and drip washing.TAI HU AREA precipitation is plentiful, and rainy season is long and concentrated relatively, if there is not effective interception measure, the rich water that nearly water body vegetable field flows out will become one of Taihu Lake water pollution source.Traditional dish ground irrigation canals and ditches are exposed soil property irrigation canals and ditches, and it is easy to generate water and soil loss, also do not tackle soil and fertilising nitrogen phosphorus to the water body shift function.
Summary of the invention
The present invention is foundation with the ecological theory, by ecological intercepting band, vegetable plot ecological intercepting ditch make up, careless later use and and safeguard the integrated of three technology, realize practicality and the continuation of ecological intercepting control vegetable plot nitrogen phosphorus to the water body migrating technology.
Above-mentioned purpose realizes by following technology:
Vegetable field soil nitrogen phosphorus runoff control ecological intercepting method may further comprise the steps:
Make up the ecological intercepting band;
Make up the ecological intercepting ditch;
Later use and the maintenance of herbage in ecological intercepting band and the interception ditch.
The the 1st, the 2 two step in the above step can only be selected one of them for use, also can select for use simultaneously, and when selecting for use simultaneously, they are implemented simultaneously, do not have the sequencing problem.
Adopt method of the present invention interception, control vegetable plot nitrogen and phosphorus loss the time, do not get rid of and adopt other biological to learn or abiological method simultaneously, and this method and other biological are learned, between the abiology method, generally can not produce contradiction and conflict, only the stack that can tell on.
Described structure ecological intercepting band technology is meant: interception is with between river course, lake, pond and vegetable field, 4～6 meters of width, and the present invention recommends to adopt 5 meters; The economical herbage of plantation is not applied fertilizer in the interception band.
Described structure ecological intercepting ditch technology is: the ecological intercepting ditch is used for irrigating and draining between the vegetables plot of adjoining.The bottom of ditch and two walls are planted economical herbage, join and execute foliage fertilizer.The width of ditch and the degree of depth can be 20～30cm.
Described herbage later use with maintenance technology is: different according to local conditions with season, and select suitable economical herbage, and use the foliage fertilizer of special prescription according to the needs of herbage.Herbage is supplied the needs of fishery cultivating nearby.The ratio of pasture growing area fishery cultivating area supported with it is about 1: 1～and 1.5.
Described " foliage fertilizer of special prescription " reaches the concrete grammar of " herbage supply fishery cultivating needs ", can adopt disclosed the whole bag of tricks in the prior art.
Described herbage can be selected from: Sudan grass (Sorghum sudanense); Perennial ryegrass (Loliumhybridum); Pearl millet (Pennisetum clandesti) perennial ryegrass-Sudan grass combination.
Agro-ecological engineering method provided by the invention can realize N in the pollution of area source, P composition ecological intercepting and recycling middle ecological intercepting band Control Engineering construction, can control the nitrogen phosphorus discharging of vegetable field to water body effectively; The engineering construction facility, technology is simple, is easy to promote; The recycling of herbage, the self of realization ecological intercepting technology.Compare with ecological canal, vegetable plot of the present invention nitrogen phosphorus runoff hold-up interception method has utilized Lin Hu, the physical relief condition of (ditch) along the river, and actual construction cost and difficulty of construction are lower, have good oneself to keep ability.
Description of drawings
Fig. 1 is the utility model engineering plane.
Embodiment
Embodiment 1, vegetable field soil nitrogen phosphorus runoff control ecological intercepting method.
Ecological intercepting band constructing technology:
Observed result with February in 2005 to August is an example, and the ecological intercepting straw cord can be tackled runoff nitrogen 42～91%, is 46～95% to particulate form nitrogen interception efficient wherein; To water-soluble attitude nitrogen and component NO thereof
3 -, NH
4 +Interception efficient is respectively 20～79%, 10-98% and 30～80%; The ecological intercepting straw cord can be tackled runoff phosphorus 30.4～92%, and particulate form phosphorus is tackled efficient all 16.7～95%, to water-soluble attitude phosphorus and component H thereof
2PO
4 2-Interception efficient is respectively 26～84% and 23～89%.
Table 1 ecological intercepting band control vegetable field soil nitrogen phosphorus runoff loss effect (2005, Sudan grass)
| Observation date period | Total amount | Interception efficient (%) * | |||||||
| Water-soluble attitude | Particle | ||||||||
| Nitrogen | Phosphorus | Nitrogen | Phosphorus | ||||||
| Nitrogen | Phosphorus | Total nitrogen | Ammoniacal nitrogen | Nitrate nitrogen | Total phosphorus | Phosphate radical | |||
| 2.24～5.9 5.1～6.30 6.30～7.7 7.7～7.13 7.13～8.2 8.2～8.9 | 91.2 56.1 83.3 85.6 56.1 42.0 | 91 30.4 95.1 91.7 55.3 30.8 | 95 54.6 46.5 91.3 76.1 64.3 | 95.4 16.7 97.1 92.7 48.5 32.5 | 71.2 58.4 78.9 67.1 36.7 20.4 | 88.3 90.9 79 61.5 98.2 10.4 | 71.1 57.2 80 71.6 30.4 36.1 | 48 51.1 83.8 78 65.9 26.0 | 44.8 50.1 82.8 89.4 63.1 23.1 |
Ecological intercepting ditch constructing technology:
Summer in 2005, plantation Sudan grass in the ecological intercepting ditch, average every meter straw cord can be tackled the 0.38mg total nitrogen, the 0.12mg total phosphorus.
Follow-up utilization of herbage and maintenance technology:
With nitrogen phosphorus absorption efficiency height, careless later use economic worth height is basis, and we select perennial ryegrass-Sudan grass combination.Be perennial ryegrass 10～May, and be Sudan grass 5～September.Per season herbage harvesting twice, the fish pond of adjoining as supply of forage ecological intercepting band.The ratio of pasture growing area fishery cultivating area supported with it is about 1: 1.2.
Layout is with reference to Fig. 1: planting forage grass in 1 and 3 is a basis with nitrogen phosphorus absorption efficiency height, careless later use economic worth height, and we select perennial ryegrass-Sudan grass combination.Can absorb and tackle the 2 nitrogenous phosphorus of runoff water that produce; Join and execute foliage fertilizer, make herbage can be used for 4 fishery cultivating.Be perennial ryegrass 10～May, and be Sudan grass 5～September.Per season herbage harvesting twice, the fish pond of adjoining as supply of forage ecological intercepting band.The ratio of pasture growing area fishery cultivating area supported with it is about 1: 1.2.
Embodiment 2, and is substantially the same manner as Example 1, but only makes up the ecological intercepting band.Plant Sudan grass in the ecological intercepting band.4～6 meters of interception bandwidth.
Embodiment 3, and is substantially the same manner as Example 1, but only makes up the ecological intercepting ditch.Plant perennial ryegrass in the ecological intercepting ditch.
Embodiment 4, and is substantially the same manner as Example 1, but the herbage of planting in ecological intercepting band and the ecological intercepting ditch is pearl millet.5 meters of interception bandwidth.
Claims (3)
1, a kind of vegetable field soil nitrogen phosphorus runoff control ecological intercepting method may further comprise the steps:
Make up the ecological intercepting band;
Make up the ecological intercepting ditch;
Later use and the maintenance of herbage in ecological intercepting band and the interception ditch.
2, vegetable field soil nitrogen phosphorus runoff control ecological intercepting method as claimed in claim 1, it is characterized in that described structure ecological intercepting band is meant: interception is with between river course, lake, pond and vegetable field, 4～6 meters of width; The economical herbage of plantation is not applied fertilizer in the interception band;
Described structure ecological intercepting ditch is: the ecological intercepting ditch is used for irrigating and draining between the vegetables plot of adjoining, and the bottom of ditch and two walls are planted economical herbage, join and execute foliage fertilizer;
Described herbage later use with maintenance technology is: different with season according to local conditions, select suitable economical herbage, and use the foliage fertilizer of special prescription according to the needs of herbage, herbage is supplied the needs of fishery cultivating nearby, and the ratio of pasture growing area fishery cultivating area supported with it is about 1: 1～and 1.5;
Described herbage is selected from: Sudan grass (Sorghum sudanense); Perennial ryegrass (Lolium hybridum); Pearl millet (Pennisetum clandesti) perennial ryegrass-Sudan grass combination.
3, vegetable plot as claimed in claim 1 or 2 ecological intercepting ditch constructing technology is characterized in that the width of described structure ecological intercepting band is 5 meters.
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| CNB2006100379085A CN100448342C (en) | 2006-01-20 | 2006-01-20 | Ecological intercepting method of vegetable field soil nitrogen phosphorus runoff control |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434371C (en) * | 2006-11-15 | 2008-11-19 | 中国科学院南京土壤研究所 | Ecological method for purifying trench sewage |
| CN102265768A (en) * | 2011-06-28 | 2011-12-07 | 山东省果树研究所 | Irrigation method for orchard |
| CN103228179A (en) * | 2010-11-23 | 2013-07-31 | 尤利乌斯·布卢姆有限公司 | Fixing device for a furniture part |
| CN103299792A (en) * | 2012-03-08 | 2013-09-18 | 云南福保农业科技开发有限公司 | Grass planting method for purifying water quality |
| CN106630155A (en) * | 2016-09-22 | 2017-05-10 | 福建师范大学地理研究所 | Construction method of riparian buffer strips for reducing non-point source pollution of broken farmland landscape |
| CN109673408A (en) * | 2019-02-26 | 2019-04-26 | 云南大学 | A kind of method of mountainous region or the solid soil control erosion of sloping upland plant networkization |
| CN115925010A (en) * | 2022-09-02 | 2023-04-07 | 中国科学院南京土壤研究所 | Method for constructing farmland non-point source pollution zero-emission system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1268557C (en) * | 2004-06-17 | 2006-08-09 | 浙江大学 | Water culture pasture grass filtering method for sewage of circulating water aquaculture system and plant filter |
| CN100519426C (en) * | 2005-04-06 | 2009-07-29 | 朱康民 | Converse circulation method for harnessing lake pollution |
-
2006
- 2006-01-20 CN CNB2006100379085A patent/CN100448342C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100434371C (en) * | 2006-11-15 | 2008-11-19 | 中国科学院南京土壤研究所 | Ecological method for purifying trench sewage |
| CN103228179A (en) * | 2010-11-23 | 2013-07-31 | 尤利乌斯·布卢姆有限公司 | Fixing device for a furniture part |
| CN103228179B (en) * | 2010-11-23 | 2015-04-15 | 尤利乌斯·布卢姆有限公司 | Fixing device for a furniture part |
| CN102265768A (en) * | 2011-06-28 | 2011-12-07 | 山东省果树研究所 | Irrigation method for orchard |
| CN103299792A (en) * | 2012-03-08 | 2013-09-18 | 云南福保农业科技开发有限公司 | Grass planting method for purifying water quality |
| CN106630155A (en) * | 2016-09-22 | 2017-05-10 | 福建师范大学地理研究所 | Construction method of riparian buffer strips for reducing non-point source pollution of broken farmland landscape |
| CN109673408A (en) * | 2019-02-26 | 2019-04-26 | 云南大学 | A kind of method of mountainous region or the solid soil control erosion of sloping upland plant networkization |
| CN115925010A (en) * | 2022-09-02 | 2023-04-07 | 中国科学院南京土壤研究所 | Method for constructing farmland non-point source pollution zero-emission system |
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| CN100448342C (en) | 2009-01-07 |
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