CN104285534A - Soil improvement and water and soil conservation method for black soil area - Google Patents
Soil improvement and water and soil conservation method for black soil area Download PDFInfo
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- CN104285534A CN104285534A CN201410624013.6A CN201410624013A CN104285534A CN 104285534 A CN104285534 A CN 104285534A CN 201410624013 A CN201410624013 A CN 201410624013A CN 104285534 A CN104285534 A CN 104285534A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/40—Afforestation or reforestation
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Abstract
The invention relates to a forest measure for water and soil conservation, and aims to provide a soil improvement and water and soil conservation method for a black soil area. The method comprises the steps of closing hillsides to facilitate afforestation, planting a water conservation forest, planting a terrace and ridge protecting forest and planting an economic forest. According to the method, gully treatment is supplemented with slope treatment, and the overall engineering layout is designed according to local conditions and dangers based on the treatment principle of simultaneously taking engineering, forest and farming measures and combining economic, ecologic and social benefits to bring benefits, abolish harms, seek both temporary and permanent solutions, reduce the gully erosion harms, regain the ecological balance of a watershed and promote the harmonious coexistence and sustainable development of populations, economy and the society by virtue of water and soil conservation ecological environment construction.
Description
Technical field
The present invention relates to the Forestry Measures method of water and soil conservation, more particularly, is a kind of improvement and soil and water conservation method of being applied to black soil region soil.
Background technology
The black soil region in China northeast is because residing latitude is high, very cold, and its decomposition velocity of organic substances is slower than earth's surface accumulation and forms humus composition, and humic acid and humin component colors are comparatively dark, therefore makes soil outward appearance be rendered as black color and called after black earth.According to Second National soil survey information statistics, China's black soil of Northeast China gross area is about 7x10
4km
2, be one of large Black soil zone in the world three (another two in Ukraine and U.S. Mississippi Valley).Organic matter in black soil content is approximately 10 times of loess, is that fertility is the highest, the soil of optimum agro-farming.
Existing China carries the population in the world 22% with the soil accounting for the world 7%, therefore the protection problem in soil is the important subject of China always.Northeast black earth area is as the important grain production bases of China, in recent years along with population increases and exploitation puts more effort, ecotope just constantly worsens, show: water and soil loss area constantly expands, degree is constantly deepened, soil erosion performance obviously, aggravates year by year with the ecocatas-trophe that water erosion is main erosional forms, seriously jeopardizes the ecosystem and stablizes and life property safety of people.According to the great consulting item of Chinese Academy of Engineering " configuration of the relevant water and soil resources in the Northeast, eco-environmental conditions protect and some strategic issues of sustainable development are studied " report display, the water and soil loss area of current Northeast black earth area accounts for 34% of the gross area.According to expert introduction, the black earth often generating 1cm needs 200-400, and mollic is to be often close on the speed of 1cm in loss now, and the black earth total amount be lost every year reaches 1-2 hundred million m
3.
Although the reason of Black Soil Degradation shows as the result of natural cause and human action factor comprehensive role, for now, human factor is only the key factor causing black soil region soil water and soil loss.Therefore, present stage, except carrying out reasonable ploughing and weeding, prevents outside excessive and random lumbering, and the whole metallurgical method of soil is protected in that also need a set of science, complete forest cultivation, could thoroughly improve the soil of black soil region.
Summary of the invention
The object of the invention is the problem in order to solve existing black soil region soil severe water and soil erosion, matching species with the site, suits measures to local conditions, and to obtain the stable Forest habitat continued, improving site quality is target; The present invention selects the indigenous tree species be suitable for, or through cultivating for many years, the exotic tree that adaptability is stronger, build cladding forest form as far as possible, make full use of Vegetation space, set up stable ecosystem, to give full play to the productivity of land under various land occupation condition, to obtain maximum water and soil conservation Three benefits.
Improvement and the soil and water conservation method step of black soil region soil are:
(1) close hillsides to facilitate afforestation, comprise selection and engineering fence or plant fence are set;
(2) plant water and protect woods, comprise the domatic water conservation forest of plantation, plantation bank protection grazing forest and plantation gully head protection woods three kinds of modes;
(3) terraced fields field bund shelter forest is planted;
(4) plant economic forest, comprise plantation Manchurian ash and cherry tree.Because Manchurian ash is excellent furniture raw material, cherry tree is also the fruit tree of the applicable growths such as northeast Heilongjiang Province, and also has good economic worth.
As a further improvement on the present invention, any one of close hillsides to facilitate afforestation in described step (1) and first select " entirely sealing ", " half envelope " and " wheel envelope " three kinds of modes, and press actual conditions rotation.Closing hillsides to facilitate afforestation is the updating ability utilizing forest, in the mountain area that natural conditions are suitable, carries out and regularly seals a mountain pass, and the artificial destructive activity such as forbid reclaiming wasteland, herd, cut firewood, to recover the one forest cultivation mode of forest cover.The present invention can be divided into " entirely seal " (forbidding all human activities in the long period), " half envelope " (seasonal cut into a mountain) and " wheel envelope " (regular burst wheel seals wheel and opens) according to actual conditions; This is the forest cultivation mode of a kind of small investment, instant effect.
As a further improvement on the present invention, the engineering fence specification in described step (1) is: timber more than diameter 10cm, and timber spacing is less than 4m, and underground buried depth is greater than 0.65m, on the ground higher than 1.20m, reinforces root every 2 timber gravels; Separately add level thorn line 5 road, spacing is less than 0.20m, and diagonal is totally 2 road distributions.
As a further improvement on the present invention, the plant fence in described step (1) adopts sea-buckthorn seedling to enclose system.
As a further improvement on the present invention, the gully head protection woods in described step (2), be laid in ditch head water inlet lowland position, ditch slope is cut slope and is become step wholely; Seeds select sprout tillers strong, the bush clover that branch is intensive; Move towards vertical with streamline, unhurried current is hung and is become silted up; Shrub mixed forest is built in both sides, water route, and based on shrub, tall filling mixes friendship, and seeds select willow, willow.
As a further improvement on the present invention, the afforestation strain number of the economic forest in described step (4) is not less than 510 strains/hm
2, then consider the loss of increase by 15%; After described economic forest field planting, can between tree planting forage grass again.
Prophylactico-therapeutic measures layout of the present invention is outstanding based on gull regulation, Methods in Slop Improvement is auxiliary, develop simultaneously in line with engineering, woods grass, tillage control measure, the regulation principle that economic, ecological, social benefit is taken into account, suits measures to local conditions, arranges Engineering Overall layout with setting up defences because of harmful, make every effort to by soil and water conservation ecological environmental construction, bring good to and remove all evil, treat both principal and secondary aspect of disease, alleviate rill erosion harm, recover river basin ecological balance, promote the coordinate coexistence of population, economy and society, Sustainable Development.
Accompanying drawing explanation
Fig. 1 is the configuration diagram of engineering fence.
Fig. 2 is the cross-sectional schematic of plant fence.
Fig. 3 is the plan view of plant fence.
Fig. 4 is the design diagram of domatic water conservation forest.
Fig. 5 is the design diagram of erosion gully shelter forest.
Fig. 6 is the design diagram that field bund shelter forest mixes friendship.
Fig. 7 is the design diagram of economic forest.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
The improvement of black soil region of the present invention soil and soil and water conservation method, step is:
(1) implement to close hillsides to facilitate afforestation
1, land occupation condition: dredge young growth area, shrub land, deserted mountain barren hill, water and soil loss is comparatively strong, moisture photo-thermal is more sufficient, and secondary vegetation is grown.
2, Technology design: will determine management system to forest ranger, implements and manages and protects work responsibility system.Regularly patrol naturally repairing in district, forbid people and animals to enter and destroy vegetation cover, design at traffic route, village's village house, pasture periphery etc. and repair district and border on area isolation rail and warning sign are set.Design fixed timber thorn filament fence and amount to 550 linear meters, plant fence (sea-buckthorn/caragana microphylla) 440 linear meters, 6, permanent marker board, so that full basin citizen understands and supervision.
100 linear meter fence main material tables
| Timber (root) | 8# iron wire (kg) | Barbed wire (kg) |
| 25 | 11 | 80 |
3, engineering fence is set:
Designing requirement: block protect delimit plot do not destroyed by people and animals.
Use material: timber, thorn line, iron wire, gravel, anti-corrosion asphalt etc.
Main material specification: iron wire 8#, timber more than diameter 10cm.
Building codes: timber spacing 4m, underground buried depth 0.65m, high 1.20m, reinforces root every 2 timber gravels on the ground.Level thorn line 5 road, spacing 0.20m, diagonal is totally 2 roads (as shown in Figure 1).
Points for attention during use: more protection and maintenance.
4, plant fence is set:
1. designing requirement: block protect delimit plot do not destroyed by people and animals.
2. seedling is used: sea-buckthorn.
Main material specification: 2 age sea-buckthorn seedlings
3. design drawings is as Fig. 2 and Fig. 3.
Specification 4. wholely: artificial cave-shaped wholely, with afforestation, with whole, footpath, cave 0.3m, dark 0.2m.
5. method of forestation and season: artificial tree planting in spring.
6. Tending: weeding, to loosen the soil, fosters year time: First Year secondary; Second Year secondary.
Every mu of seedling amount computational chart
7. after-culture: make nursery stock after-culture with seeds large.
5, fencing management
1. establish and improve strict restoration of the ecosystem management system, accomplish "Four Haves", mark of namely closing hillsides to facilitate afforestation (stone tablet or pinnacle), has folk regulations, has forest ranger troop, have technology files.
2. restoration of the ecosystem (fencing) period wants timely after-culture afforestation to frith, and carries out tending and intermittent cutting of forest in good time.
3. forbid closing period in production and operating activities such as reparation district carry out that felling firewood is herded.
4. the fire prevention of Ecological Restoration Area and forest pest control work, will perform according to " forest law " and pertinent regulations.
(2) plant water and protect woods
1, domatic water conservation forest are planted
1. land occupation condition: domatic middle and upper part, aggressivity black earth, soil thickness 10-20cm, site index is medium.
2. design drawings as shown in Figure 4.
Specification 3. wholely: artificial cave-shaped wholely, with afforestation, with whole, footpath, cave 0.5m, dark 0.6m.
4. method of forestation and season: artificial tree planting in spring, dibbling, pours water.
5. Tending: weeding, to loosen the soil, fosters year time: First Year 2 times; Second Year 2 times; 3rd year 2 times; 4th year 1 time.
Every mu of seedling amount computational chart
2, bank protection grazing forest is planted
Shrub grazing forest takes direct seeding forestation more, and 3 years, sowing shrub back, shrub is main with Extensive root, carries out stump after 3 years, impels the growth of acrial part.After arbor species afforestation, as managed by shrub shape, within the 2nd year, getting final product stump, making acrial part form shrubbery shape.The general afforestation head 2-3 as herding forest land strictly closes, and forbids that livestock enters in woods.According to observations, Caragana korshinskii is filled with from grazing forest, and after sheep only searches for food 7-10 days, new skill again eruption can continue to herd.Therefore, grazing forest management should be noted having planned wheel pastoral area, make it both be conducive to the normal growth of seeds, be conducive to again often maintaining abundant searching for food and raise leather.
3, gully head protection woods is planted
Be laid in ditch head water inlet lowland position afforestation.Seeds select sprout tillers strong, the bush clover that branch is intensive.Move towards vertical with streamline, unhurried current is hung and is become silted up.Shrub mixed forest is built in both sides, water route.
Ditch slope corrosion protection woods.Ditch slope is cut after slope becomes step wholely and is afforested, and with stable ditch bank, prevents gully from crosswisely developing.Based on shrub, tall filling mixes friendship, and seeds select willow, willow.
1. plot is implemented: corrode furrow bank
2. land occupation condition: gully, gravitational erosion is serious, corrosion type black earth.
3. to afforest diagram: ditch slope corrosion protection woods, cut slope afforestation diagram as shown in Figure 5.
Specification 4. wholely: summer upper one year of afforesting, autumn artificial cave-shaped wholely, arbor cave footpath 0.5m, dark 0.6m.
Shrub cave footpath 0.3m, dark 0.3m
5. method of forestation and season: spring arbor manually plant seedlings, soil moved in improve the original afforestation, apply fertilizer, pour water.Shrub bunch planting or plant seedlings.
6. Tending: cave-shaped weeding, to loosen the soil, fosters year time: First Year three times; Second Year secondary; 3rd year secondary.
7. every mu of seedling amount computational chart:
Erosion gully shelter forest seedling amount computational chart
8. after-culture: make nursery stock after-culture with seeds large.
(3) terraced fields field bund shelter forest is planted
1. land occupation condition: sloping upland, terraced fields field bund ridge bank, black earth, the thick 10-20cm of soil layer, water and soil loss is heavier.
2. mixed intersection graph shows as shown in Figure 6.
Specification 3. wholely: artificial cave-shaped wholely, with afforestation, with whole, footpath, cave 0.3m, dark 0.2m.
4. method of forestation and season: artificial bunch planting in spring or tree planting.
5. Tending: weeding, to loosen the soil, fosters year time: First Year secondary; Second Year secondary.
Every mu of seedling amount computational chart
6. after-culture: make nursery stock after-culture with seeds large.
(4) economic forest is planted
Broad sense economic forest be with shelter forest comparatively speaking, to produce timber or other forestry products directly obtain the forest that economic benefit is main purpose.It comprises timber forest, spy uses economic forest, firewood forest etc.
Narrow sense economic forest refers to the fruit, seed, bark, leaf, myron, branch, bud, tender shoots etc. that utilize trees, to produce the high forest and spinney that oil plant, fresh and dried fruit, the raw material of industry, medicinal material and other secondary special product product (comprising starch, grease, rubber, medicinal material, spices, beverage, coating and fruit) are Main Management object; The forest and fruit tree that have special economic to be worth.As woody woodstuff forest, woody oleiferous plants, raw material of industry special-purpose forest etc.
Non-timber Forest is produced, and not only can supply raw materials for industry, agricultural production, for people's lives provide various product directly or indirectly, to increase food variety, alleviates grain, oily imbalance between supply and demand and ensures that people ' s health has great meaning; And hills, the land resources in mountain area and living resources can be made reasonably to be utilized, be do China's comprehensive agricultural development well, build up monutainous regions, shake off poverty and set out on the road to prosperity, increase the important channel of foreign export commodity.
The nonwood forest trees that the present invention uses can select Manchurian ash and cherry tree.
2. land occupation condition: arbor forest land, leeward on the sunny side, the good plot of ventilation condition.
2. field planting distance: different according to different cultivars density, general 4 × 5m is advisable.Afforestation strain number 510 strains/hm
2, adding 15% loss needs 586 strains/hm in fact
2.After field planting can tree between planting forage grass, make full use of land resources, the conservation of soil and water, increase income.
3. mixed intersection graph shows as shown in Figure 7.
4. land preparation mode: can, according to orographic condition, take fish scale pit wholely, applying organic manure is planted.
5. tending management:
Manage by its growth characteristic after fruit tree field planting, carry out subsoiling, pressure green manure when annual expansion cave, also will plough deeply, many organic fertilizers, fertilizing method digs annular groove with crown mapping scope, specification 0.5 × 0.5m.Florescence also will carry out foliar application in conjunction with spray medicine preventing disease and pest and root system topdresses.Also to pour water in time raising fruit-setting rate simultaneously.Autumn, shape pruning controlled apical dominance, guaranteed height of tree crown, promoted collateral generation rate.
Weeding is loosened the soil: for ensureing treelet normal growth and don't making soil large area exposed, should adopt low intensive weeding with a hoe.Soil and water conservation forest, before young growth closing, is generally forbidden pruning.Economic forest plantation should supplement the liquid manure of trees in time.Newly make young growth and will carry out fencing, closure against grazing and other activity being unfavorable for growth of young plantations and destroying soil preparation measure.
Young growth after-culture: survival rate more than 70% and being evenly distributed, does not need after-culture; Survival rate 30-70% carries out after-culture; Survival rate, less than 30%, should to be reforested.Young growth after-culture need with the seedlings of same seeds or seedling of the same age.For Afforestation Preparation Projects, should remain intact, check after annual flood, find that damage is studied for a second time courses one has flunked in time.
The improvement of black soil region of the present invention soil and soil and water conservation method, be applied to two blue or green small watershed experiment Analysis, conclusion is as follows:
It is domestic that two blue or green small watershed is positioned at Heilongjiang Province, be located in the intermediate region of song-Nen plain to the transition of mountain region, Xingan, belong to Man Gang erosion type district, black earth hills, physical features undulation mostly is Man Chuanman hilllock, by the impact of regional nature environment and the black earth factors of soil formation, in basin, soil erosion performance obviously, aggravates year by year with the ecocatas-trophe that rill erosion is main erosional forms, seriously jeopardizes Regional agro-ecosystem and stablizes and life property safety of people.
On the basis to this basin on-site inspection, the present invention sums up this area for many years and carries out water and soil conservation afforestation experiment, demonstration experience, take site-type as foundation, consider the otherness of each site-type, redesign in conjunction with existing cultivation level and the advanced afforestation technology of utilization, by the step method that the present invention is above-mentioned, namely the enforcement of a series of control measures such as restoration of the ecosystem, conceding the land to forestry, construction water guarantor woods is advanced, to building the end of term, newly-increased 6.14 hectares of forest land area, woods grass cover rate improves 1.8%, and every control measures gross water retention reaches 69.88 ten thousand m
3, soil conservation total amount reaches 1.48 ten thousand t.Administer district's storage roof 62.4%, efficiency of soil conservation 92.7%, soil erosion modulus is by administering front 1920t/km
2a is down to 141t/km
2a.The water and soil conservation protection forest system that comprehensive improvement forms tall filling grass, guipure sheet combines on scenery with hills and waters Tianlin County road, ground microclimate obviously improves, water and soil loss greatly alleviates, improve basin mitigation and drive harmful anti-adversity ability, along with the orderly enforcement of soil erosion management, the sloping upland soil erosion is effectively controlled, and basic farmland area expands year by year, for agricultural sustainable development has established solid foundation.
Finally, it is also noted that what enumerate above is only a specific embodiment of the present invention.Obviously, the present invention can also have many distortion, all distortion that those of ordinary skill in the art can directly derive from content disclosed by the invention or associate, and all should think protection scope of the present invention.
Claims (6)
1. the improvement of black soil region soil and a soil and water conservation method, is characterized in that, comprise the following steps:
(1) close hillsides to facilitate afforestation, comprise selection and engineering fence or plant fence are set;
(2) plant water and protect woods, comprise the domatic water conservation forest of plantation, plantation bank protection grazing forest and plantation gully head protection woods three kinds of modes;
(3) terraced fields field bund shelter forest is planted;
(4) plant economic forest, comprise plantation Manchurian ash and cherry tree.
2. the improvement of black soil region soil and soil and water conservation method according to claim 1, is characterized in that, close hillsides to facilitate afforestation in described step (1) first select " entirely sealing ", " half envelope " and " wheel envelope " three kinds of modes any one, and press actual conditions rotation.
3. the improvement of black soil region soil and soil and water conservation method according to claim 1, it is characterized in that, engineering fence specification in described step (1) is: timber more than diameter 10cm, timber spacing is less than 4m, underground buried depth is greater than 0.65m, on the ground higher than 1.20m, reinforce root every 2 timber gravels; Separately add level thorn line 5 road, spacing is less than 0.20m, and diagonal is totally 2 road distributions.
4. the improvement of black soil region soil and soil and water conservation method according to claim 1, it is characterized in that, the plant fence in described step (1) adopts sea-buckthorn seedling to enclose system.
5. the improvement of black soil region soil and soil and water conservation method according to claim 1, it is characterized in that, the gully head protection woods in described step (2), be laid in ditch head water inlet lowland position, ditch slope is cut slope and is become step wholely; Seeds select sprout tillers strong, the bush clover that branch is intensive; Move towards vertical with streamline, unhurried current is hung and is become silted up; Shrub mixed forest is built in both sides, water route, and based on shrub, tall filling mixes friendship, and seeds select willow, willow.
6. the improvement of black soil region soil and soil and water conservation method according to claim 1, it is characterized in that, the afforestation strain number of the economic forest in described step (4) is not less than 510 strains/hm
2, then consider the loss of increase by 15%; After described economic forest field planting, can between tree planting forage grass again.
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| CN105684590A (en) * | 2016-01-15 | 2016-06-22 | 湖北省农业科学院植保土肥研究所 | Slope farmland nitrogen phosphor loss control method |
| 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 |
| CN106888901A (en) * | 2017-02-08 | 2017-06-27 | 广东省林业科学研究院 | A kind of method of structure Pearl River Delta Regional City suburbs Landscape Forest |
| CN107278407A (en) * | 2017-07-25 | 2017-10-24 | 兰州大学 | A kind of method for preventing the secondary generation of Degenerated Meadow |
| CN110073889A (en) * | 2019-06-13 | 2019-08-02 | 左会军 | A kind of ecological fence and preparation method thereof for grassland and waste mountain waste |
| CN111802015A (en) * | 2020-08-04 | 2020-10-23 | 中国农业科学院草原研究所 | Method for restoring degraded grassland vegetation by hole-making technology |
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| CN113565081A (en) * | 2021-08-12 | 2021-10-29 | 北京江河中基工程咨询有限公司 | Method for preventing and treating water and soil loss of construction site |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105684590A (en) * | 2016-01-15 | 2016-06-22 | 湖北省农业科学院植保土肥研究所 | Slope farmland nitrogen phosphor loss control method |
| 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 |
| CN106888901A (en) * | 2017-02-08 | 2017-06-27 | 广东省林业科学研究院 | A kind of method of structure Pearl River Delta Regional City suburbs Landscape Forest |
| CN107278407A (en) * | 2017-07-25 | 2017-10-24 | 兰州大学 | A kind of method for preventing the secondary generation of Degenerated Meadow |
| CN110073889A (en) * | 2019-06-13 | 2019-08-02 | 左会军 | A kind of ecological fence and preparation method thereof for grassland and waste mountain waste |
| CN111802015A (en) * | 2020-08-04 | 2020-10-23 | 中国农业科学院草原研究所 | Method for restoring degraded grassland vegetation by hole-making technology |
| CN111802015B (en) * | 2020-08-04 | 2023-05-09 | 中国农业科学院草原研究所 | Method for recovering degraded grassland vegetation by hole making technology |
| CN112577877A (en) * | 2020-12-02 | 2021-03-30 | 武汉大学 | Water and fertilizer integrated drip irrigation control migration testing device and method for black soil and multiple soil layers in cold region |
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