CN114747435B

CN114747435B - Arid region side slope herbaceous plant snow soil moisture sowing method

Info

Publication number: CN114747435B
Application number: CN202210446545.XA
Authority: CN
Inventors: 宋春武; 徐新文; 蒋进; 王立新
Original assignee: Xinjiang Institute of Ecology and Geography of CAS
Current assignee: Xinjiang Institute of Ecology and Geography of CAS
Priority date: 2022-04-26
Filing date: 2022-04-26
Publication date: 2023-04-25
Anticipated expiration: 2042-04-26
Also published as: CN114747435A; ZA202205967B

Abstract

The invention discloses a snow soil moisture sowing method for side slope herbaceous plants in arid regions, which belongs to the technical field of desertification control, and comprises the steps of collecting capsules with full seeds and good maturity on dried plants in the complete maturity period of a Liimann tyranno and a samara tyranno, respectively obtaining a Liimann tyranno net seed and a samara tyranno net seed, and storing for later use; performing soil finishing on the slope surface of the side slope; uniformly mixing the clean seeds of the Liimann rex and the clean seeds of the samarax to obtain mixed seeds, then mixing the mixed seeds with dry fine sand, and uniformly stirring to obtain mixed seed soil; adding clear water into the mixed seed soil to obtain wet seed soil; sowing the wet seed soil; covering the slope with a grass curtain and fixing; after the big snow in winter, uniformly scattering the snow on the flat land above the slope onto the slope grass curtain, and lightly compacting and smoothing; in spring in the next year, after the grass seeds sprout, the grass curtain is removed. The invention creates conditions for successful plant establishment of the arid region side slope so as to realize the sustainability of the arid region side slope water and soil conservation.

Description

Arid region side slope herbaceous plant snow soil moisture sowing method

Technical Field

The invention relates to the technical field of desertification control, in particular to a snow soil moisture sowing method for side slope herbaceous plants in arid regions.

Background

In recent years, due to large-scale construction of diversion main channels, high-grade highways and railways, excavation and filling of a large number of side slopes are often required. Erosion, sand blowing erosion, water and soil loss and shallow local landslide phenomena commonly exist on a plurality of exposed side slopes. Taking the Krama as an example of a water supply channel slope, the observation and research on the slope surface protected by engineering measures for 20 years show that natural restoration of the slope vegetation cannot be realized only by engineering concrete grid beam measures and natural restoration, but serious wind erosion and desertification occurs, and water erosion of snow-melting water, flood and summer storm water erosion causes water and soil loss and slope collapse phenomena.

The arid region side slope is little due to regional precipitation, soil salinization and desertification, and the influence of severe environmental conditions such as windy (easy air-drying of surface soil to influence seed germination) in early spring planting season, the case of successful construction of artificial vegetation is less, and the existing artificial vegetation construction method comprises the following steps: based on the sowing and planting technology of grass seeds under irrigation conditions, grass seeds include Poa, festuca, bingcao, lolium, bermuda, and the like; based on the sowing technology of grass seeds and shrubs under low irrigation conditions, the grass seeds and shrubs comprise halogeton, alkaline Kochia scoparia, sand sagebrush, fescue, siberian nitraria and the like. The technology for constructing the artificial vegetation on the side slope of the arid region based on the species has the following defects: 1) Grass seed sowing and planting technology under irrigation conditions requires a certain amount and multiple times of early irrigation to ensure normal germination and growth of seeds. However, in many arid and semiarid desert areas, the engineering slope crossing sections have no irrigation condition, the water source is lacked in the spring proper period, and the artificial grass and tree planting is difficult and heavy; 2) Based on the grass seed and shrub seed sowing technology under the low irrigation condition, not too much irrigation is needed, but early-stage species grow slowly, the surface vegetation coverage is low, and the water and soil loss on the slope topography is serious in the spring snow thawing period and the summer storm period.

Disclosure of Invention

Aiming at the problems, the invention provides a snow soil moisture sowing method for side slope herbaceous plants in arid regions. The method is completed by the steps of seed collection and storage, slope surface arrangement, artificial sowing, straw curtain, snow covering and the like, and the method fully utilizes natural resources of the desert to accumulate technical reserves for vegetation planting of engineering slopes in arid regions. The method creates conditions for successful plant planting of the side slope of the arid region by collecting the technical combinations of wild grass seeds suitable for the side slope, sowing methods imitating scattering and sprouting characteristics of the wild seeds, utilizing proper water supplement of snow soil moisture, covering heat preservation and soil moisture by a grass curtain, and the like, so as to realize the sustainability of water and soil conservation of the side slope of the arid region.

The invention aims to provide a snow soil moisture sowing method for grass plants on a side slope of an arid region, which comprises the following steps:

s1, respectively collecting capsules with full seeds and good maturity on a dried plant in the complete maturity period of the Liimann rex and the samaran rex to obtain Liimann rex seed cleaning and samaran rex seed cleaning, and storing for later use;

s2, before the soil in the middle and upper ten days of 11 months is frozen, the soil on the slope surface is tidied, the soil on the slope surface is required to be leveled and uniform, and larger soil blocks and stones are removed;

s3, uniformly mixing the Liimann rex seed cleaning and the samaran rex seed cleaning to obtain mixed seeds, then mixing the mixed seeds with dry fine sand, and uniformly stirring to obtain mixed seed soil;

s4, adding clear water into the mixed seed soil to the extent that the mixed seed soil is pinched into clusters and falls off to be dispersed, so as to obtain wet seed soil;

s5, uniformly sowing the wet seed soil on the slope surface, and uniformly raking and scattering; beating, compacting and smoothing the soil scattered by the slope;

s6, covering the pressed and smoothed slope with a grass curtain and fixing;

s7, uniformly scattering the snow on the flat land above the slope onto the slope grass curtain after the snow is large in winter, and lightly compacting and smoothing;

s8, removing the grass curtain after the grass seeds sprout in spring in the next year.

Preferably, in S1, naturally drying the Liiman king capsules in the shade for 3-5 days, spreading the capsules on the ground, tapping with a rod until the cracked seeds are exposed, screening to remove peel impurities to obtain Liiman king seeds, naturally drying the Liiman king seeds in the shade for 3-5 days, pouring the Liiman king seeds into a breathable cloth bag, and storing the Liiman king seeds in a cool room at normal temperature;

the collection method of the samara tyrannosal seed is the same as that of the Lisman tyrannosal seed.

Preferably, in S2, the slope gradient is less than 25 degrees, and the slope soil is sandy loam or light sticky loam.

Preferably, in S3, the volume ratio of the Lisman tyrosol seed to the samara tyrosol seed in the mixed seeds is 2-3:1;

in the mixed seed soil, the volume ratio of the mixed seed to the dry fine sand soil is 1:3-4.

Preferably, in S5, the net seed sowing amount per square meter is 5-8g.

Preferably, in S5, the harrow is used for uniformly harrowing and scattering, the harrowing and scattering depth is 3-5 cm, the soil on the surface layer of the soil is loosened, and the soil is uniformly mixed with the seed soil.

Preferably, in S6, when the grass curtains are covered, the grass curtains are paved row by row from the slope toe to the slope top along the contour line sequence, the grass curtains of the upper row are covered and crossed on the grass curtains of the lower row, and the width of the covered and crossed grass curtains is between 10cm and 20 cm;

fixing by using a U-shaped iron wire, wherein the depth of the U-shaped iron wire inserted into soil is more than or equal to 15cm.

Preferably, in S7, the thickness of snow covered on the grass curtain is 5-10 cm.

Preferably, in S8, 5 to 10 strains/m ² After the grass seeds sprout, the grass curtain is removed.

The invention provides a method for sowing snow soil moisture of grass plants on a side slope in an arid region, which is characterized by comprising the following steps:

species selection: sowing grass seeds, namely selecting the rural desert herbaceous plants which are dwarf, rapid in germination, high in coverage, super-arid, barren-tolerant and have the physical characteristics of short-lived like plants; two types of living type (annual and perennial) plants, the annual herbs realize rapid germination growth and high coverage, the perennial herbs slowly grow to gradually replace the annual herb coverage space in the later period, so that the space-time collocation planting of the two types of living herbal species and the continuous slope protection effect in the current year are realized;

and (3) manual sowing: the seeds of the Liimann and samaranger are small, after the capsules are cracked, the seeds are scattered around along the terrain along with the wind and are buried in the surface layer of the soil, and the seeds germinate and grow rapidly after snow thawing in spring. Therefore, sowing on the side slope of the arid region with stable snow by adopting a suitable sowing mode is the guarantee of survival of two species of the tyrannosaurus plants. Namely, two herbaceous plants are defoamed (the defogging can improve the germination rate of seeds), mixed fine sandy soil is uniformly sown on the surface layer of soil (1 part of seeds and 3 parts of fine sandy soil (sand soil and loam mixture) are mixed, the seeds are not easy to freeze into clusters, meanwhile, the water can be effectively stored when snow is melted), the thickness is not more than 5cm, and the seeds are lightly compacted, so that the measure is the key of germination of early spring seeds;

grass curtain cover: the grass curtain is used for covering, so that on one hand, covered snow cover is prevented from being melted to form slope runoff, and slope is protected. On one hand, the heat preservation and soil moisture preservation effects can be well achieved, and the germination rate of grass seeds is improved. In this wayEnsuring timely snow cover water supplementing condition for 4 months in the same year, and keeping the emergence rate of the plant of the Bawangzhi herb at 8 plants/m on average ² The coverage of 7 months of planting in the current year can reach 15-20%, the shrubs are planted on the basis of the coverage of the pitaya grass plants in autumn in the current year, and the side slope protection effect is more stable.

Snow cover: by utilizing snow cover, on one hand, the seeds are sowed before snow, the seeds are well contacted with soil moisture, and the seedlings grow strong and strong after sprouting. On the one hand, good water supplement is provided for germination of early spring seeds during snow melting. The snow cover with the thickness of 5-10 cm is the key water supplement of seeds from seedlings to strong seedlings.

The samara king (Zygophyllum pterocarpum Bge.) is a perennial herb plant of the family Tribulaceae in early spring, the root is woody, the head is 10-20 cm high. The capsule is oval in shape of a long circle, 10-20 mm long, 10-12 mm wide, 2-3 mm wide, and 5 fins. The seed is oval in shape of a long circle, 3-4 mm long and 2-2.5 mm wide. Flowering period is 6-7 months, and fruit period is 7-9 months. The lumannan king (Zygophyllum lehmannianum bge.) is an annual herb of the early spring of the tribulidae family, with thin roots, single roots, 6-18 cm high. The capsule is in an oblong shape, and the longstanding and samara overloads have the characteristics of strong adaptability, drought resistance, salt and alkali resistance and rapid germination, belong to plant types which escape drought and severe habitats, and have the characteristics of the climatic conditions of short-lived like plants. The snow is ablated in the spring in the northern Xinjiang, a suitable habitat is provided for the propagation and growth of short-lived plants in early spring, and the leyman king utilizes the short suitable growth time to rapidly sprout, bud and set, so that better surface vegetation coverage is realized. And by 6 and 7 months, when the temperature rises rapidly and the soil and the atmosphere are obviously dried, the Lieman overlord finishes the life cycle, thereby effectively avoiding the high death risk caused by the dry hot weather in the desert environment on the germination, growth and development and propagation of seeds, and achieving successful reproduction. The samara king slowly grows and develops in the period until the period of 8 and 9 months, and the life cycle is finished, so that the water and soil loss and the aggravation of wind erosion caused by naked increase (7 and 8 months have summer storm) after the leyman king dies are avoided. The two species are combined with the snow soil moisture sowing technology to well complete the mission of pioneer plants on the side slope, and the slope is covered in the growing season rapidly, so that the effect of preventing the water and soil loss of the slope is achieved. The method provides a 'transition period' of the first year for slope greening of later drought-resistant plant species (drought-resistant and salt-resistant shrub species and herbaceous species which generally grow slowly and cannot rapidly play a role in protecting the slope in a slope with serious water and soil loss), and provides vital slope protection of the first year for the later slope greening. The method provides a practical method and a technical approach for vegetation restoration of engineering slopes around the Pascal basin. Therefore, the method has important application value.

The invention provides a method for sowing a plant of the tyrant genus of the engineering side slope of an arid region based on the environmental characteristics of the engineering side slope of the arid region, and provides a technique for sowing the plant of the tyrant genus of the arid region according to the growth characteristics of the tyrant genus with early spring type short-lived plant characteristics, through experimental study and field observation under various measures, the method is applied to a Kramay engineering slope, and the emergence rate is kept at 8 strains/m on average in experimental demonstration of the construction of the artificial vegetation of the alhagi sparsifolia on the periphery of oasis in arid regions ² The preservation rate is 3/m ² The coverage of 7 months can reach 15-20%, and the coverage of the natural vegetation is close to that of the same-period flat land (25% -30%). The successful application of the technology is beneficial to the artificial planting of the pitaya plant serving as a pioneer plant on the slope, is used for stabilizing the slope, plays a role in preventing water and soil loss, and solves the problems that the shrub species grow slowly and cannot quickly solve the erosion of the slope water and soil. And plan to apply the technique to other condition-similar areas.

Compared with the prior art, the invention has the following beneficial effects:

(1) Compared with the traditional grass seed sowing strategy based on irrigation conditions, the scheme solves the problem that the traditional slope protection plants are difficult to germinate and grow under the drought slope water shortage condition by skillfully selecting the species of the tyrannals with germination characteristics (rapid and large quantity of germination, bud emergence and fruiting characteristics under the early spring and early summer water-saving and low consumption conditions) of the early spring type short-lived plants;

(2) Compared with the traditional grass seed sowing strategy based on low irrigation conditions, the scheme has the advantages that grass curtains and snow are covered after sowing, the construction cost is low, the operation is simple and convenient, and meanwhile, the natural germination, bud emergence and fruiting growth processes of the plants under the slope condition are reduced to the greatest extent under artificial conditions, so that the germination rate and coverage of the plants under the slope condition after sowing are greatly improved.

Drawings

FIG. 1 is a schematic view of grass seed sowing provided by the invention;

FIG. 2 is a diagram of the slope finishing and seeding in autumn in 2013;

fig. 3 shows the overall growth of the herb of the genus summer tyrannouncing in 2014, wherein fig. 3 (left) shows the overall growth at one photographing angle and fig. 3 (right) shows the overall growth at another photographing angle;

FIG. 4 shows the growth of the summer Lieman-pick in 2014;

fig. 5 shows the growth of the 2014 summer samara king.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, in the following embodiments, due to an operation error in a specific implementation process, there is a certain reasonable range of related data.

Example 1

This example was performed on a small area field block.

S1, collecting seeds of the Liimann tyrannon and the samara tyrannon respectively in the complete maturity period of the Liimann tyrannon seeds in the late 7 months and the complete maturity period of the samara tyrannon seeds in the early 8 months to the early 9 months.

The acquisition method comprises the following steps: respectively collecting the full and mature Liimann overlord and samara overlord capsules on the dried plant, naturally drying the capsules in the shade for 5 days, spreading the capsules on the ground, tapping with a stick until the cracked seeds are exposed, removing pericarp impurities to obtain the seed cleaning of the Liimann and the seed cleaning of the samara, drying the clean seed of the Liiman tyranno and the clean seed of the samara tyranno in the shade for 5 days, pouring into a breathable cloth bag, and storing in a cool room at normal temperature;

s2, before the soil in the middle and upper ten days of 11 months is frozen, the soil on the slope surface is tidied, the soil on the slope surface is required to be leveled and uniform, and larger soil blocks and stones are removed; the slope gradient is less than 25 degrees, and the slope soil is sandy loam.

S3, purifying species of the Liimann rex and the samaran rex according to a volume ratio of 2:1, uniformly mixing to obtain mixed seeds. Mixing the mixed seeds with dry fine sand according to the volume ratio of 1:3, mixing and uniformly stirring to obtain mixed seed soil;

s4, slightly blending clean water into the uniformly stirred mixed seed soil for wetting, uniformly stirring, and obtaining the wetted seed soil, wherein the wetting degree reaches the degree of 'kneading by hands, dropping and scattering';

s5, wetting seed soil according to 2/m ² 3 handles/m ² The sowing quantity of the seeds is uniformly sown on the slope, namely, the net sowing quantity per square meter is 5-8g; uniformly raking and scattering the wet seed soil by using a rake, wherein the raking and scattering depth is 3-5 cm, and the soil surface layer soil is required to be loosened and uniformly mixed with the seed soil; the tools such as spades are used for beating, compacting and smoothing the soil scattered on the slope;

s6, covering the flattened slope with a grass curtain, and fixing with a U-shaped iron wire, wherein the depth of the U-shaped iron wire inserted into soil is more than or equal to 15cm; the grass curtains are paved row by row along the contour line sequence from the toe to the top of the slope, and the grass curtains in the upper row are covered and crossed on the grass curtains in the lower row; the width of the covering intersection between the grass curtains is between 10cm and 20 cm;

s7, uniformly sprinkling the snow on the flat land above the slope onto the slope grass curtain after the snow is large in winter, and lightly compacting and smoothing; the thickness of the snow covered on the grass curtain is 5-10 cm. As shown in fig. 1, 1 refers to a snowbed layer, 2 refers to a grass curtain layer, and 3 refers to a moist seed soil layer in fig. 1.

S8, spring in the coming year, 5-10 strains/m ² After the grass seeds sprout, the grass is gradually uncoveredA curtain.

Example 2

The embodiment is implemented in a carama-based water diversion channel side slope greening test demonstration area, namely large-area popularization demonstration, wherein the area is larger than 50 mu, and the specific operation is carried out according to the following steps:

The acquisition method comprises the following steps: respectively collecting the lumbo nucifera and samara fujiuwang capsules with plump seeds and good maturity on the dried plants, and naturally drying the capsules in the shade for 5 days. Spreading the capsules on the ground, tapping with a rod until the seeds are exposed after cracking, screening to remove peel impurities to obtain Liimann species and samara species, naturally drying the Liimann species and samara species in the shade for 5 days, pouring into a breathable cloth bag, and storing in a cool room at normal temperature;

s2, before the soil in the middle and upper ten days of 11 months is frozen, slope soil is tidied, the slope soil is required to be flat and uniform, and larger soil blocks and stones are removed; the slope soil is sandy loam.

S3, after the step S2 is completed, the seed of the Leeman-gazelle and the seed of the samara-gazelle are mixed according to the volume ratio of 2:1, mixing uniformly. Mixing the mixed seeds with dry fine sand according to the volume ratio of 1:3, mixing and stirring uniformly; the seeds of other various species are respectively mixed with the dry fine sand according to the volume ratio of 1:3, mixing and stirring uniformly;

s4, after the step S3 is completed, slightly mixing the uniformly stirred seed soil with clear water for wetting and uniformly stirring, wherein the wetting degree reaches the degree of 'kneading by hands, and falling and scattering';

s5, wetting seed soil in the step S4 according to the ratio of 2/m ² 3 handles/m ² The sowing quantity of the seeds is uniformly sown on the slope, namely, the net sowing quantity per square meter is 5-8g; as shown in fig. 2; uniformly raking and scattering the wet seed soil by using a rake, wherein the raking and scattering depth is 3-5 cm, and the soil surface layer soil is required to be loosened and uniformly mixed with the seed soil; the tools such as spades are used for beating, compacting and smoothing the soil scattered on the slope;

s6, covering the flattened slope with a grass curtain, and fixing with a U-shaped iron wire, wherein the depth of the U-shaped iron wire inserted into soil is more than or equal to 15cm; the grass curtains are paved row by row along the contour line sequence from the toe to the top of the slope, and the grass curtains in the upper row are covered and crossed on the grass curtains in the lower row;

s7, uniformly sprinkling the snow on the flat land above the slope onto the slope grass curtain after the snow is large in winter, and lightly compacting and smoothing; the thickness of the snow covered on the grass curtain is 5-10 cm.

S8, gradually removing the grass curtain after the grass seeds sprout in spring in the next year.

Fig. 3 shows the overall growth condition of the summer tyrannomum herb in 2014, fig. 4 and fig. 5 show the growth conditions of the lumman tyrannomum and the samara tyrannomum respectively, and fig. 3-5 show that the tyrannomum herb grows well under the slope condition.

Example 3

The acquisition method comprises the following steps: respectively collecting the full and mature Liimann overlord and samara overlord capsules on the dried plant, naturally drying the capsules in the shade for 3 days, spreading the capsules on the ground, tapping with a stick until the cracked seeds are exposed, removing pericarp impurities to obtain the seed cleaning of the Liimann and the seed cleaning of the samara, drying the clean seed of the Liiman tyranno and the clean seed of the samara tyranno in the shade for 4 days, pouring into a breathable cloth bag, and storing in a cool room at normal temperature;

s2, before the soil in the middle and upper ten days of 11 months is frozen, the soil on the slope surface is tidied, the soil on the slope surface is required to be leveled and uniform, and larger soil blocks and stones are removed; the slope gradient is less than 25 degrees, and the slope soil is light sticky loam.

S3, purifying species of the Liimann rex and the samaran rex according to a volume ratio of 3:1, uniformly mixing to obtain mixed seeds. Mixing the mixed seeds with dry fine sand according to the volume ratio of 1:3.5, mixing and uniformly stirring to obtain mixed seed soil;

s5, wetting seed soil according to 2/m ² 3 handles/m ² The sowing quantity of the seeds is uniformly sown on the slope, namely, the net sowing quantity per square meter is 5-8g; wetting seed soil by a rake, uniformly raking and scattering, wherein the raking and scattering depth is 3-5 cm, and loosening soil on the surface layer of the soil is required to be uniformly mixed with the seed soil; the tools such as spades are used for beating, compacting and smoothing the soil scattered on the slope;

S8, spring in the coming year, 5-10 strains/m ² After the grass seeds sprout, the grass curtains are gradually uncovered.

Example 4

S1, seeds of the Liimann and the samara are collected in the last ten days of 7 months to 9 months respectively.

The acquisition method comprises the following steps: collecting the lumbo nucifera and the samara nucifera capsules with full seeds and good maturity on the dried plants in the complete maturity period, naturally drying the capsules in the shade for 4 days, spreading the capsules on the ground, tapping with a rod until the cracked seeds are exposed, screening out pericarp impurities to obtain lumbo nucifera net seeds and samara nucifera net seeds, naturally drying the lumbo nucifera net seeds and samara nucifera net seeds in the shade for 3 days, pouring the lumbo nucifera net seeds and samara nucifera net seeds into a breathable cloth bag, and storing the lumbo nucifera net seeds at normal temperature in a shade room;

S3, purifying species of the Liimann rex and the samaran rex according to a volume ratio of 2.5:1, uniformly mixing to obtain mixed seeds. Mixing the mixed seeds with dry fine sand according to the volume ratio of 1:4, mixing and uniformly stirring to obtain mixed seed soil;

Comparative example 1

The same as in example 1, except that the seed used was halograss; mixing the halogeton seed with dry fine sand according to the volume ratio of 1:3, mixing and stirring uniformly to obtain the mixed seed soil.

Comparative example 2

The same as in example 1, except that the seed used was cymbidium goeringii; mixing the cymbidium goeringii seeds with dry fine sand according to the volume ratio of 1:3, mixing and stirring uniformly to obtain the mixed seed soil.

Comparative example 3

The same as in example 1, except that the seed used was sand sagebrush; mixing sand sagebrush seeds with dry fine sand according to a volume ratio of 1:3, mixing and stirring uniformly to obtain the mixed seed soil.

Comparative example 4

The same as in example 1, except that the seed used was camel hair quinoa; mixing the camel hair and quinoa seeds with dry fine sand according to the volume ratio of 1:3, mixing and stirring uniformly to obtain the mixed seed soil.

Sample preparation was conducted for example 1 and comparative examples 1 to 4 according to the sowing area of different species after the grass curtain was removed at the beginning of 5 months of the next year, as shown in table 1.

TABLE 1 emergence and conservation rates after sowing of different desert species

As can be seen from Table 1, the Bawang herb adopted by the invention has good emergence rate and preservation rate under the condition of a side slope, and solves the problem that the conventional slope protection plants are difficult to germinate and grow under the condition of lack of water on the drought side slope.

It should be noted that, when numerical ranges are referred to in the present invention, it should be understood that two endpoints of each numerical range and any numerical value between the two endpoints are optional, and because the adopted step method is the same as the embodiment, in order to prevent redundancy, the present invention describes a preferred embodiment.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A method for sowing snow soil moisture of side slope herbaceous plants in arid regions is characterized by comprising the following steps:

s6, covering the pressed and smoothed slope with a grass curtain and fixing;

2. The method for sowing snow soil moisture on side slope herbaceous plants in arid region according to claim 1, wherein in S1, the capsules of the Liiman king are naturally dried in the shade for 3-5 days, the capsules are laid on the ground, the seeds are tapped by a stick until the seeds are exposed after cracking, the peel impurities are removed by screening, the Liiman king seeds are obtained, the Liiman king seeds are naturally dried in the shade for 3-5 days, and then poured into a ventilated cloth bag, and the cloth bag is placed in a cool room for storage at normal temperature;

3. The method for sowing the grass plants on the side slope in the arid region in snow soil according to claim 2, wherein in the step S2, the slope gradient is less than 25 degrees, and the slope soil is sandy loam or light sticky loam.

4. The method for sowing snow soil moisture on side slopes of arid regions according to claim 3, wherein in step S3, the volume ratio of the clean seeds of the hybrid seeds of the leyman tyrannosaurus and the clean seeds of the samarangersche is 2-3:1;

5. The method for sowing snow soil moisture on side slope herbaceous plants in arid region according to claim 4, wherein the net seed sowing amount per square meter is 5-8g in S5.

6. The method for sowing snow soil moisture on side slope herbaceous plants in arid region according to claim 5, wherein in S5, the harrow is used for uniformly harrowing, the harrowing depth is 3-5 cm, the soil surface layer soil is loosened, and the soil surface layer soil is uniformly mixed with seed soil.

7. The method for sowing snow soil moisture on side slopes of arid regions according to claim 6, wherein in S6, when the grass curtains are covered, the grass curtains are laid row by row from the toe to the top of the slope in the order of contour lines, the grass curtains of the upper row are covered and crossed on the grass curtains of the lower row, and the width of the covered and crossed grass curtains is between 10cm and 20 cm;

8. The method for sowing snow soil moisture on side slope herbaceous plants in arid region according to claim 7, wherein the thickness of snow covered on the grass curtain in S7 is 5-10 cm.

9. The method for sowing snow soil moisture of herb plants on side slopes in arid regions as set forth in claim 8, wherein the method comprises the steps ofIn S8, 5-10 strains/m ² After the grass seeds sprout, the grass curtain is removed.