CN112586280A - Method for treating desertification grassland by using fermented cow dung - Google Patents
Method for treating desertification grassland by using fermented cow dung Download PDFInfo
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- 210000003608 fece Anatomy 0.000 title claims abstract description 105
- 238000000034 method Methods 0.000 title claims abstract description 28
- 241000283690 Bos taurus Species 0.000 claims abstract description 97
- 239000004576 sand Substances 0.000 claims abstract description 97
- 230000004888 barrier function Effects 0.000 claims abstract description 66
- 239000010871 livestock manure Substances 0.000 claims abstract description 48
- 241001494479 Pecora Species 0.000 claims abstract description 42
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 238000009304 pastoral farming Methods 0.000 claims abstract description 12
- 244000025254 Cannabis sativa Species 0.000 claims description 35
- 238000005553 drilling Methods 0.000 claims description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 20
- 244000075850 Avena orientalis Species 0.000 claims description 16
- 235000007319 Avena orientalis Nutrition 0.000 claims description 16
- 241000234643 Festuca arundinacea Species 0.000 claims description 16
- 230000001681 protective effect Effects 0.000 claims description 16
- 241000570445 Elymus nutans Species 0.000 claims description 12
- 239000003337 fertilizer Substances 0.000 claims description 12
- 241000209082 Lolium Species 0.000 claims description 10
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims description 10
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims description 10
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims description 10
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims description 10
- 238000010899 nucleation Methods 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 9
- 241000196324 Embryophyta Species 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 240000004296 Lolium perenne Species 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000440 bentonite Substances 0.000 claims description 5
- 229910000278 bentonite Inorganic materials 0.000 claims description 5
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 5
- KMQAPZBMEMMKSS-UHFFFAOYSA-K calcium;magnesium;phosphate Chemical compound [Mg+2].[Ca+2].[O-]P([O-])([O-])=O KMQAPZBMEMMKSS-UHFFFAOYSA-K 0.000 claims description 5
- 238000000855 fermentation Methods 0.000 claims description 5
- 230000004151 fermentation Effects 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 5
- 229910052710 silicon Inorganic materials 0.000 claims description 5
- 239000010703 silicon Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 239000010902 straw Substances 0.000 claims description 5
- 230000002265 prevention Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 241000132536 Cirsium Species 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 241001465754 Metazoa Species 0.000 description 3
- 241000700159 Rattus Species 0.000 description 3
- 238000009395 breeding Methods 0.000 description 3
- 230000001488 breeding effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 241000722731 Carex Species 0.000 description 1
- 241000612166 Lysimachia Species 0.000 description 1
- 244000292697 Polygonum aviculare Species 0.000 description 1
- 235000006386 Polygonum aviculare Nutrition 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G20/00—Cultivation of turf, lawn or the like; Apparatus or methods therefor
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
- C05B13/02—Fertilisers produced by pyrogenic processes from phosphatic materials from rock phosphates
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Cultivation Of Plants (AREA)
- Pretreatment Of Seeds And Plants (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to the technical field of sand prevention and control, in particular to a method for controlling desertification grassland by using fermented cow dung. Determining planting time, selecting a planting area range, fermenting cattle and sheep manure, preparing a sand barrier mixture, and manufacturing and managing the cattle manure sand barrier: after the cow dung sand barrier is manufactured, the planting area is sealed by a barbed wire fence to prevent grazing, and grazing can be carried out after 3-5 years. The invention can provide a new way for the comprehensive treatment of the desertification grassland in the alpine desert area, can be widely used in the sand prevention and control project of China, and is particularly suitable for the desertification grassland treatment in the alpine pasturing area.
Description
Technical Field
The invention relates to the technical field of desertification ecological management, in particular to a method for managing desertification grasslands by using fermented cow dung.
Background
In recent years, under the superposition influence of various factors such as global climate change, excessive grazing, rat abuse, man-made interference and the like, the desertification of the land in the alpine region develops from sporadic distribution to local concentrated connection, and the land shows a rapid expansion situation, so that the regional ecological function is obviously influenced. Although the mode of combining machinery and biology is the best technology for treating the moving dune under the condition similar to the vertical place of a high-cold area at present, the mode is influenced by the special natural environment condition of the high-cold area, and the existing mode has high cost, slow construction and difficult wide popularization.
The Maqu county is located in the southwest of the southwest Tibetan nationality of Gansu province, the eastern end of the Qinghai-Tibet plateau, the region where Gansu, Qinghai and Sichuan are connected, the first bending part of the yellow river is located between 100 degrees 45 ' to 102 degrees 29 ' 00 ' of the east longitude and 33 degrees 06 ' 30 ' to 34 degrees 30 ' 15 ' of the northern latitude, the northeast uses the Xijiaoshan as a boundary to be connected with the Luzhou Luqu county of the State, the Dong, the south and the Szechuan province are adjacent, the West is adjacent to the Xianhui county of the Qiang nationality of the Kyowa nationality of the Qinghai province, the Gando county and the Xianhui county of the Huangnan Tibetan nationality of the Mongolian.
The method has the advantages that degradation of alpine grassland in Maqu yellow river source areas is serious, toxic weeds are bred and invaded, and rat damage is rampant, so that ecological functions of a grassland conservation water source, water and soil conservation, wind prevention and sand fixation and the like are remarkably reduced. Can be used as a new way for treating desertification deteriorated grassland in a similar high and cold area.
Disclosure of Invention
The invention aims to provide a method for treating desertification grassland by using fermented cow dung, which aims to solve the problems that alpine grassland in a yellow river source area is seriously degraded, toxic weeds are propagated and invaded, and rats and rampant are rampant.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a method for treating desertification grassland by using fermented cow dung comprises the following steps:
s1 determining planting time: after the wind season in the alpine pasturing area is finished and the land is unfrozen, beginning in 5 months;
s2, selecting a planting area range: planting pasture on the flowing sand dunes and the flat sand lands;
s3 fermentation of cow and sheep manure: adding activated carbon into fermented cattle and sheep manure, uniformly mixing, controlling the temperature to be 30-45 ℃, ventilating and fermenting, ventilating for 20-30 minutes every 2-4 hours, and fermenting for 7-14 days to obtain pollution-free cattle and sheep manure, wherein the pollution-free cattle and sheep manure comprises 60-100 parts of cattle manure, 3-6 parts of sheep manure, 30-50 parts of crop straws, 10-20 parts of silicon fertilizer, 5-10 parts of bran, 10-15 parts of bentonite, 15-30 parts of calcium magnesium phosphate fertilizer and 10-20 parts of activated carbon;
s4 preparing a sand-protecting mixture, namely selecting the fermented cattle and sheep manure obtained in the step S3, adding mixed grass seeds, hydroxypropyl methylcellulose (HPMC) and a proper amount of water into the fermented cattle and sheep manure, and uniformly stirring for later use;
s5 preparation of the cow dung sand barrier: ditching in the planting range determined in the step S2, wherein the ditching direction is vertical to the main wind direction, the ditching width is 15-25cm, the bottom of the ditch is in a continuous concave-convex shape, the concave-convex shape is a regular triangular pyramid, a quadrangular prism or a cylinder, and cow dung sand barriers are stacked in the ditch;
s6 management and protection: after the cow dung sand barrier is manufactured, a planting area is sealed, nursed and grazed by adopting a barbed wire fence, grazing can be performed after 3-5 years, the height of the barbed wire fence is 1.4-1.6 m, and the barbed wire fence is formed by surrounding 7-9 barbed wires at transverse intervals.
Preferably, in step S4, the mixed grass seeds are herbaceous plant seeds suitable for alpine habitat, and include a mixture of lyme thistle, festuca arundinacea, ryegrass and oats,
preferably, the content ratio of the elymus nutans, the festuca arundinacea, the ryegrass and the oat is 2:1:2:1,
preferably, in the step S4, the sheep manure is 3-5 times of the total amount of the mixed grass seeds,
preferably, in the step S4, the amount of the cow dung is 120 times of the amount of the grass seed mixture 100 times.
Preferably, in the step S5, the width of the cow dung sand barriers is 15-25cm, the height of the cow dung sand barriers is 15-20cm, the section of each cow dung sand barrier is trapezoidal, three-edge or quadrilateral protective belts with the maximum side length of 2-3m are enclosed between adjacent cow dung sand barriers, the protective belts are arranged in the desertification piece area to be processed, sand barrier lattices are arranged in the protective belts, and mixed grass seeds are sown in the sand barrier lattices.
Preferably, the mixed grass seeds sowed in the sand barrier lattices contain Elymus nutans, Festuca arundinacea, Lolium perenne and oat, and the weight percentage of the Elymus nutans, the Festuca arundinacea, the Lolium perenne and the oat is 5:3:5: 3.
Preferably, a drilling mode is adopted in the sand barrier lattices, the direction of drilling rows is vertical to the main wind direction, the drilling rows are combined in a linear and spaced staggered mode in multiple rows, 10-12cm is ditched in the drilling rows, seeds are scattered at the bottoms of the ditches, covered with sand and treaded, the row spacing between the drilling rows is 30cm, the seeding quantity of the flowing sand dunes is 15 kg/mu, and the seeding quantity of the flat sand land is 8-10 kg/mu.
Compared with the prior art, the invention has the beneficial effects that: the invention fully utilizes the cattle and sheep manure, has better sand fixation effect, wide raw material source and easy obtainment, reduces the use amount of chemical fertilizer, improves the soil, increases the organic matter content of the soil, improves the fertilizer efficiency of the soil, and is environment-friendly, efficient and balanced in nutrition while reducing the production cost; moreover, the protective belt can avoid the invasion of pioneer grass seeds such as wind erosion, sand burying, scald, Siberian knotweed, sand carex, lysimachia and the like. Finally, the invention improves the productivity of the deteriorated grassland in the yellow river source area and can effectively recover and maintain the original ecological function of the alpine grassland.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described with reference to the following embodiments:
example 1
A method for treating desertification grassland by using fermented cow dung comprises the following steps:
s1 determining planting time: after the wind season in the alpine pasturing area is finished and the land is unfrozen, beginning in 5 months;
s2, selecting a planting area range: planting pasture on the flowing sand dunes and the flat sand lands;
s3 fermentation of cow and sheep manure: adding activated carbon into fermented cow and sheep manure, uniformly mixing, controlling the temperature to be 30 ℃, ventilating and fermenting, ventilating for 20 minutes every 2 hours, and fermenting for 7 days to obtain the cow and sheep manure, wherein the cow manure is 60 parts, the sheep manure is 3 parts, the crop straws are 30 parts, the silicon fertilizer is 10 parts, the bran is 5 parts, the bentonite is 10 parts, the calcium magnesium phosphate fertilizer is 15 parts, and the activated carbon is 10 parts;
s4 preparing a sand-protecting mixture, namely selecting the fermented cattle and sheep manure obtained in the step S3, adding mixed grass seeds, hydroxypropyl methylcellulose (HPMC) and a proper amount of water into the fermented cattle and sheep manure, and uniformly stirring for later use;
s5 preparation of the cow dung sand barrier: ditching in the planting range determined in the step S2, wherein the ditching direction is vertical to the main wind direction, the ditching width is 15cm, the bottom of the ditch is in a continuous concave-convex shape, the concave-convex shape is a regular triangular pyramid, a quadrangular prism or a cylinder, and cow dung sand barriers are stacked in the ditches;
s6 management and protection: after the cow dung sand barrier is manufactured, the barbed wire fence is adopted for sealing a breeding area and forbidding grazing, grazing can be performed after 3-5 years, the barbed wire fence is 1.4 m high and is formed by surrounding 7 barbed wires at transverse intervals, and the barbed wire fence can prevent cattle and sheep and other animals from trampling the sand barrier.
In the step S4, the mixed grass seeds are herbaceous plant seeds suitable for alpine habitat, and the mixed grass seeds comprise a mixture of lyme thistle, festuca arundinacea, ryegrass and oats.
Mixing the elymus nutans, the festuca arundinacea, the ryegrass and the oats in a content ratio of 2:1:2: 1.
In the step S4, the sheep manure is 3 times of the total amount of the mixed grass seeds, and the cow manure is 100 times of the grass seed mixture.
In said step S5; the width of the cow dung sand barrier is 15cm, the height of the cow dung sand barrier is 15cm, the section of the cow dung sand barrier is trapezoidal, three-edge or quadrilateral protective belts with the maximum side length of 2-3m are enclosed between adjacent cow dung sand barriers, the protective belts are arranged in a desertification piece area to be treated, sand barrier lattices are arranged in the protective belts, and mixed grass seeds are sown in the sand barrier lattices.
The mixed grass seeds sowed in the sand barrier lattices contain Elymus nutans, Festuca arundinacea, Lolium perenne and oats in a weight ratio of 5:3:5: 3.
The sand barrier is characterized in that a drilling mode is adopted in the sand barrier lattices, the direction of drilling rows is vertical to the main wind direction, the drilling rows are combined in a linear and spaced multi-row staggered mode, the drilling rows are ditched for 10cm, seeds are sowed at the bottoms of the ditches, sand is covered and treaded, the row spacing between the drilling rows is 30cm, the seeding quantity of the flowing sand dunes is 12 kg/mu, and the seeding quantity of the flat sand land is 8 kg/mu.
Example 2
A method for treating desertification grassland by using fermented cow dung comprises the following steps:
s1 determining planting time: after the wind season in the alpine pasturing area is finished and the land is unfrozen, beginning in 5 months;
s2, selecting a planting area range: planting pasture on the flowing sand dunes and the flat sand lands;
s3 fermentation of cow and sheep manure: adding activated carbon into fermented cow and sheep manure, uniformly mixing, controlling the temperature to 40 ℃, ventilating and fermenting, ventilating for 25 minutes every 3 hours, and fermenting for 10 days to obtain the cow and sheep manure, wherein 80 parts of cow manure, 5 parts of sheep manure, 40 parts of crop straw, 15 parts of silicon fertilizer, 8 parts of bran, 12 parts of bentonite, 25 parts of calcium magnesium phosphate fertilizer and 18 parts of activated carbon are added;
s4 preparing a sand-protecting mixture, namely selecting the fermented cattle and sheep manure obtained in the step S3, adding mixed grass seeds, hydroxypropyl methylcellulose (HPMC) and a proper amount of water into the fermented cattle and sheep manure, and uniformly stirring for later use;
s5 preparation of the cow dung sand barrier: ditching in the planting range determined in the step S2, wherein the ditching direction is vertical to the main wind direction, the ditching width is 20cm, the bottom of the ditch is in a continuous concave-convex shape, the concave-convex shape is a regular triangular pyramid, a quadrangular prism or a cylinder, and cow dung sand barriers are stacked in the ditches;
s6 management and protection: after the cow dung sand barrier is manufactured, the barbed wire fence is adopted for sealing a breeding area and forbidding grazing, grazing can be performed after 3-5 years, the barbed wire fence is 1.5 m high and is formed by 8 barbed wires at transverse intervals, and the barbed wire fence can prevent cattle and sheep and other animals from trampling the sand barrier.
In the step S4, the mixed grass seeds are herbaceous plant seeds suitable for alpine habitat, and the mixed grass seeds comprise a mixture of lyme thistle, festuca arundinacea, ryegrass and oats.
Mixing the elymus nutans, the festuca arundinacea, the ryegrass and the oats in a content ratio of 2:1:2: 1.
In the step S4, the sheep manure is 4 times of the total amount of the mixed grass seeds, and the cow manure is 110 times of the grass seed mixture.
In said step S5; the width of the cow dung sand barrier is 20cm, the height of the cow dung sand barrier is 18cm, the section of the cow dung sand barrier is trapezoidal, three-edge or quadrilateral protective belts with the maximum side length of 2-3m are enclosed between adjacent cow dung sand barriers, the protective belts are arranged in a desertification piece area to be treated, sand barrier lattices are arranged in the protective belts, and mixed grass seeds are sown in the sand barrier lattices.
The mixed grass seeds sowed in the sand barrier lattices contain Elymus nutans, Festuca arundinacea, Lolium perenne and oats in a weight ratio of 5:3:5: 3.
The sand barrier is characterized in that a drilling mode is adopted in the sand barrier lattices, the direction of drilling rows is vertical to the main wind direction, the drilling rows are combined in a linear and spaced multi-row staggered mode, the drilling rows are ditched by 11cm, seeds are sowed at the bottoms of the ditches, sand is covered and treaded, the row spacing between the drilling rows is 30cm, the seeding quantity of the flowing sand dunes is 13 kg/mu, and the seeding quantity of the flat sand land is 9 kg/mu.
Example 3
A method for treating desertification grassland by using fermented cow dung comprises the following steps:
s1 determining planting time: after the wind season in the alpine pasturing area is finished and the land is unfrozen, beginning in 5 months;
s2, selecting a planting area range: planting pasture on the flowing sand dunes and the flat sand lands;
s3 fermentation of cow and sheep manure: adding activated carbon into fermented cow and sheep manure, uniformly mixing, controlling the temperature to be 45 ℃, ventilating and fermenting for 30 minutes every 4 hours, and fermenting for 14 days to obtain cow and sheep manure, wherein 100 parts of cow manure, 6 parts of sheep manure, 50 parts of crop straw, 20 parts of silicon fertilizer, 10 parts of bran, 15 parts of bentonite, 30 parts of calcium magnesium phosphate fertilizer and 20 parts of activated carbon are added;
s4 preparing a sand-protecting mixture, namely selecting the fermented cattle and sheep manure obtained in the step S3, adding mixed grass seeds, hydroxypropyl methylcellulose (HPMC) and a proper amount of water into the fermented cattle and sheep manure, and uniformly stirring for later use;
s5 preparation of the cow dung sand barrier: ditching in the planting range determined in the step S2, wherein the ditching direction is vertical to the main wind direction, the ditching width is 25cm, the bottom of the ditch is in a continuous concave-convex shape, the concave-convex shape is a regular triangular pyramid, a quadrangular prism or a cylinder, and cow dung sand barriers are stacked in the ditches;
s6 management and protection: after the cow dung sand barrier is manufactured, the barbed wire fence is adopted for sealing a breeding area and forbidding grazing, grazing can be performed after 3-5 years, the barbed wire fence is 1.6 m high and is formed by surrounding 9 barbed wires at transverse intervals, and the barbed wire fence can prevent cattle and sheep and other animals from trampling the sand barrier.
In the step S4, the mixed grass seeds are herbaceous plant seeds suitable for alpine habitat, and the mixed grass seeds comprise a mixture of lyme thistle, festuca arundinacea, ryegrass and oats.
Mixing the elymus nutans, the festuca arundinacea, the ryegrass and the oats in a content ratio of 2:1:2: 1.
In the step S4, the sheep manure is 5 times of the total amount of the mixed grass seeds, and the cow manure is 120 times of the grass seed mixture.
In said step S5; the width of the cow dung sand barrier is 25cm, the height of the cow dung sand barrier is 20cm, the section of the cow dung sand barrier is trapezoidal, three-edge or quadrilateral protective belts with the maximum side length of 2-3m are enclosed between adjacent cow dung sand barriers, the protective belts are arranged in a desertification piece area to be treated, sand barrier lattices are arranged in the protective belts, and mixed grass seeds are sown in the sand barrier lattices.
The mixed grass seeds sowed in the sand barrier lattices contain Elymus nutans, Festuca arundinacea, Lolium perenne and oats in a weight ratio of 5:3:5: 3.
The sand barrier is characterized in that a drilling mode is adopted in the sand barrier lattices, the direction of drilling rows is vertical to the main wind direction, the drilling rows are combined in a linear and spaced multi-row staggered mode, the drilling rows are ditched for 12cm, seeds are sowed at the bottoms of the ditches, sand is covered and treaded, the row spacing between the drilling rows is 30cm, the seeding quantity of a flowing sand dune is 15 kg/mu, and the seeding quantity of a flat sand land is 10 kg/mu.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A method for treating desertification grassland by using fermented cow dung is characterized by comprising the following steps: the method comprises the following steps:
s1 determining planting time: after the wind season in the alpine pasturing area is finished and the land is unfrozen, beginning in 5 months;
s2, selecting a planting area range: planting pasture on the flowing sand dunes and the flat sand lands;
s3 fermentation of cow and sheep manure: adding activated carbon into fermented cattle and sheep manure, uniformly mixing, controlling the temperature to be 30-45 ℃, ventilating and fermenting, ventilating for 20-30 minutes every 2-4 hours, and fermenting for 7-14 days to obtain pollution-free cattle and sheep manure, wherein the pollution-free cattle and sheep manure comprises 60-100 parts of cattle manure, 3-6 parts of sheep manure, 30-50 parts of crop straws, 10-20 parts of silicon fertilizer, 5-10 parts of bran, 10-15 parts of bentonite, 15-30 parts of calcium magnesium phosphate fertilizer and 10-20 parts of activated carbon;
s4 preparing a sand-protecting mixture, namely selecting the fermented cattle and sheep manure obtained in the step S3, adding mixed grass seeds, hydroxypropyl methylcellulose (HPMC) and a proper amount of water into the fermented cattle and sheep manure, and uniformly stirring for later use;
s5 preparation of the cow dung sand barrier: ditching in the planting range determined in the step S2, wherein the ditching direction is vertical to the main wind direction, the ditching width is 15-25cm, the bottom of the ditch is in a continuous concave-convex shape, the concave-convex shape is a regular triangular pyramid, a quadrangular prism or a cylinder, and cow dung sand barriers are stacked at the bottom of the ditch;
s6 management and protection: after the cow dung sand barrier is manufactured, the planting area is sealed by a barbed wire fence to prevent grazing, and grazing can be carried out after 3-5 years.
2. The method for treating sandy grassland by using the fermented cow dung as claimed in claim 1, wherein the method comprises the following steps: the mixed grass seeds are herbaceous plant seeds suitable for alpine habitats, and are a mixture of mixed grass seeds of elymus nutans, festuca arundinacea, ryegrass and oats.
3. The method for treating sandy grassland by using the fermented cow dung as claimed in claim 1, wherein the method comprises the following steps: mixing the elymus nutans, the festuca arundinacea, the ryegrass and the oats in a content ratio of 2:1:2: 1.
4. The method for treating sandy grassland by using the fermented cow dung as claimed in claim 1, wherein the method comprises the following steps: the sheep manure is 3-5 times of the total amount of the mixed grass seeds.
5. The method for treating sandy grassland by using the fermented cow dung as claimed in claim 1, wherein the method comprises the following steps: the amount of the cow dung is 120 times of that of the grass seed mixture.
6. The method for treating sandy grassland by using the fermented cow dung as claimed in claim 1, wherein the method comprises the following steps: the bottom of the cow dung sand barrier is 15-25cm wide, the top of the cow dung sand barrier is 10-20cm wide, the height of the cow dung sand barrier is 15-20cm, the section of the cow dung sand barrier is trapezoidal, three-edge or quadrilateral protective belts with the maximum side length of 2-3m are enclosed between adjacent cow dung sand barriers, the protective belts are arranged in a desertification piece area to be treated, sand barrier lattices are arranged in the protective belts, and mixed grass seeds are sown in the sand barrier lattices.
7. The method for treating sandy grassland by using the fermented cow dung as claimed in claim 6, wherein the method comprises the following steps: the mixed grass seeds sowed in the sand barrier lattices contain Elymus nutans, Festuca arundinacea, Lolium perenne and oats in a weight ratio of 5:3:5: 3.
8. The method for treating sandy grassland by using the fermented cow dung as claimed in claim 6, wherein the method comprises the following steps: the sand barrier is characterized in that a drilling mode is adopted in the sand barrier lattices, the direction of drilling rows is vertical to the main wind direction, the drilling rows are combined in a linear and spaced multi-row staggered mode, the drilling rows are ditched by 10-12cm, seeds are sowed at the bottoms of the ditches, covered with sand and treaded, the row spacing between the drilling rows is 30cm, the seeding quantity of flowing sand dunes is 15 kg/mu, and the seeding quantity of flat sand lands is 8-10 kg/mu.
9. The method for treating sandy grassland by using the fermented cow dung as claimed in claim 1, wherein the method comprises the following steps: the barb silk fence is 1.4-1.6 m high and is formed by 7-9 barb silks at transverse intervals.
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| CN113303177A (en) * | 2021-05-27 | 2021-08-27 | 甘肃省林业科学研究院 | Cow dung sand barrier and preparation method and application thereof |
| CN113692899A (en) * | 2021-07-09 | 2021-11-26 | 甘肃省林业科学研究院 | Ecological management method for alpine sandy grassland |
| CN114027110A (en) * | 2021-10-12 | 2022-02-11 | 甘肃省治沙研究所 | Method for implanting biological material in strong wind frequent region of alpine desertification grassland |
| CN114097537A (en) * | 2021-11-11 | 2022-03-01 | 西藏自治区农牧科学院草业科学研究所 | Seedling raising substrate and cultivation method for caraway |
| CN117322190A (en) * | 2023-12-01 | 2024-01-02 | 中国农业科学院草原研究所 | Method for repairing grassland local sand |
| CN117678466A (en) * | 2023-12-27 | 2024-03-12 | 甘肃省治沙研究所 | Spot-shaped alpine sandy grassland three-circle treatment method |
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| CN117322190B (en) * | 2023-12-01 | 2024-01-23 | 中国农业科学院草原研究所 | Method for repairing grassland local sand |
| CN117678466A (en) * | 2023-12-27 | 2024-03-12 | 甘肃省治沙研究所 | Spot-shaped alpine sandy grassland three-circle treatment method |
| CN117769920A (en) * | 2023-12-27 | 2024-03-29 | 甘肃省治沙研究所 | Method for treating desertification grassland in high and cold region dry riverbed |
| CN117769920B (en) * | 2023-12-27 | 2024-06-25 | 甘肃省治沙研究所 | Method for treating desertification grassland in high and cold region dry riverbed |
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