CN102174817A - Method for constructing artificially natural slope-type terrace land in Three Gorges reservoir area - Google Patents
Method for constructing artificially natural slope-type terrace land in Three Gorges reservoir area Download PDFInfo
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Abstract
The invention discloses a method for constructing an artificially natural slope-type terrace land in the Three Gorges reservoir area. The method comprises the following steps of: (1) calculating rill erosion critical slope length of a gentle slope by utilizing a rill erosion generation critical value and a tillage erosion theory; and (b) sequentially constructing sand-blocking terrace banks along the slope according to interval positions larger than the rill erosion critical slope length, wherein the bottom surfaces of all the sand-blocking terrace banks extend into soil below an original slope line, the top surfaces of all the sand-blocking terrace banks are higher than the original slope lines, and between every two adjacent sand-blocking terrace banks, the top surface of the next-stage sand-blocking terrace bank and the bottom surface of the last-stage sand-blocking terrace bank are located on the same isohypse line. The sand-blocking terrace banks are ridge-type sand-blocking terrace banks or simple civil-engineering-type sand-blocking terrace banks or plant-fence-type sand-blocking terrace banks. The method has the characteristics of low cost, easiness for popularization, high benefit and the like.
Description
Technical field
The present invention relates to sloping arable land prevention and control of soil erosion method, specifically relate to a kind of arable land, slope bringing soil erosion under control method of utilizing rill erosion threshold, tillage erosion, slope soil erosion-principles such as carrying-deposition process to make up.
Background technology
The reservoir area of Three Gorges is in China, and particularly the social economy of the Yangtze river basin, water resource safety and ecological protective screen aspect have important strategic position.5.93 ten thousand square kilometres of reservoir area of Three Gorges areas, population more than 2,100 ten thousand, cultivated area reaches 3.1 ten thousand square kilometres, mostly is the slope and ploughs, and wherein accounts for 22% of total area under cultivation greater than the sloping cultivated area of 25 degree.The purple soil that the reservoir area of Three Gorges extensively distributes is basement rock weathering type soil, and soil layer is thin, and soil erosion is strong.A large amount of silts and pollutant that the arable land, slope produces directly enter the reservoir area water body, are reservoir area of Three Gorges agricultural sustainable development and Three Gorges Projects safe operation problem demanding prompt solution.Therefore, accelerate the arable land, slope and administer the basic behave that paces are promotion basin economic society and ecological construction harmonious development.
Level terraced field is the effective measures of prevention soil and water loss, it is the capable measure of control sloping arable land soil erosion, having important storage and protect native benefit, simultaneously also is the important means of improving sloping arable land agricultural production conditions, strengthening agriculture reserve strength, with a very important position in valley harnessing.But the cost height that level terraced field is once accomplished, the earth and rock works amount is big, need high-intensity manpower and materials input, and plot, most of sloping arable land, reservoir area of Three Gorges is scrappy, the gradient is big, mechanization degree is low, under the situation that labours go out and " two workers " cancels in a large number, single solution for diverse problems formula ground transform arable land, major part slope as level terraced field and does not gear to actual circumstances.Therefore, studying the ladder technology that other can Gong select for use, has been the essential of mountain farming development, and business departments such as agricultural and water and soil conservation are also just making great efforts to seek new arable land, slope regulation pattern and technology, press for little, the instant effect of investment, arable land, the slope that is easy to promote ladderization improvement technical system.The present invention is based on the theoretical and tillage erosion process mechanism of domatic rill erosion threshold, precisely design sloping formula terrace land, take manually to promote the method for natural deduction, utilize the existing terraced bank that measure of simple and easy civil engineering sediment trapping and root system of plant concretion technology are newly repaiied or nature remodeling forms, make up sloping formula terrace land, slow down the field face gradient and the length of grade in plot; Increase soil thickness, quicken the ground maturing process, improve hillside fields land quality and utilization rate.For reservoir area large tracts of land low yield hillside fields transformation provides ecological agriculture entity patterns low-cost, high benefit.
Summary of the invention
At existing sloping arable land regulation technology above shortcomings, the purpose of this invention is to provide artificial nature's type slope, reservoir area of Three Gorges formula terrace land construction process of a kind of low cost, easy popularization, high benefit.
The object of the present invention is achieved like this: a kind of reservoir area of Three Gorges artificial nature's type slope formula terrace land construction process, and method is as follows:
A), utilize rill erosion generation threshold and tillage erosion theory, calculate the critical length of grade of gently sloping surface rill erosion;
B), according to greater than the interval location of the critical length of grade of rill erosion along the domatic sediment trapping ladder bank of constructing in turn, the bottom surface of the husky terraced bank in all hurdles is all stretched in the following soil of former line of slope, the end face of the husky terraced bank in all hurdles all exceeds former line of slope, and in the adjacent two sediment trappings ladder bank, the bottom surface of the end face of next stage sediment trapping ladder bank and upper level sediment trapping ladder bank is positioned on the same isohypse; Above-mentioned sediment trapping ladder bank is field bund formula sediment trapping ladder bank or simple and easy civil engineering formula sediment trapping ladder bank or plant hedge formula sediment trapping ladder bank.
The terraced bank construction method of above-mentioned field bund formula sediment trapping is as follows: utilize the clear good ridge of farming activities base, successively go up soil and add rammer, go up soil for every layer and will dig a hair enhancing combination to compacting face before, ridge bank is tamped in the lump with subsoil; Tight polishing is clapped on the outer side slope of ridge bank, the above interior side slope of subsoil and top, the ridge " three faces "; Ridge bank side slope 1:0.6, the annual industrial crops of perennial plant that the program request economic worth is bigger on field bund or beans solve field bund and take up an area of problem.
The construction method of above-mentioned simple and easy civil engineering formula sediment trapping ladder bank is as follows: at first at domatic contour unwrapping wire, carry out raised path through fields base clearly, excavation forms foundation trench, adopt log wood hedge, bamboo raft, biological frame, flyash bar shaped post, concrete hollow cell or piece stone to construct terraced bank along foundation trench, terraced bank exceeds the domatic 20cm in top; In cultivating procedure year by year, when the soil body height that closes on terraced bank when lower slope becomes silted up gradually and buries to terraced bank top, make the low bank of earth between fields than the high 20～30cm in ground at terraced bank top, hand compaction is clapped tight, and on the low bank of earth between fields, plant the economic plants hedge, strengthen the globality of ridge bank.
The construction method of the husky terraced bank in above-mentioned plant hedge formula hurdle is as follows: at domatic upper edge isohypse by on ploughing now naturally the first shape earth steps of formation greater than the interval of the critical length of grade of rill erosion or on the slope, with wire or perennial shrub of ribbon dense planting or herbaceous plant, the wattled wall that forms energy dash, retaining soil produces alluvial with the erosion sediment that reaches its up-hill position.
In the construction method of above-mentioned plant hedge formula sediment trapping ladder bank, plough 20 °～25 ° the high gradient, plant hedge kind is a ramie, plant hedge bandwidth 0.3m, and spacing in the rows 10 cm, plant hedge interband is apart from being 3m, horizontal wall inscription is planted; Medium gradient between 15 °～20 ° is ploughed, and plant hedge kind is an alfalfa, plant hedge bandwidth 0.3m, and spacing in the rows 10 cm, plant hedge interband is apart from being 6m, horizontal wall inscription is planted; Plough in the low gradient less than 15 °, plant hedge kind is a sugar grass, plant hedge bandwidth 0.3m, and spacing in the rows 10cm, plant hedge interband is apart from being 7m, horizontal wall inscription is planted.
The present invention builds sediment trapping measures such as field bund, simple and easy civil engineering and plant hedge on ploughing on the slope according to the critical length of grade of rill erosion, plough deeply by the slope orientation of ploughing in farming activities repeatedly, make domatic soil to descending transmission, accumulation, simultaneously down aspect is defeated under rainfall sputter and slope runoff souring moves for domatic soil particle, via plant hedge and Kan Geng to the reduction of runoff velocity and retaining of runoff and sediment, make the sedimentation of carrying in the runoff, along with lower slope is increased year by year, become level terraced field by sloping formula terrace land gradually.
The present invention builds simple and easy civil engineering sediment trapping in the domatic position that is a bit larger tham critical length of grade and forms terraced bank according to the critical length of grade of reservoir area slope arable land rill erosion, or utilizes farming activities to build field bund in the domatic position that is a bit larger tham the critical length of grade of rill erosion; Or on the existing earth steps that domatic upper edge isohypse forms naturally by certain interval (the critical length of grade greater than rill erosion) or in the arable land, slope, with wire or perennial shrub of ribbon dense planting or herbaceous plant.
This method provides the technology of a kind of low cost, easy popularization, high benefit for the control of large tracts of land abrupt slope, reservoir area arable land soil erosion.
Compared with prior art, the invention has the beneficial effects as follows:
1, based on domatic rill erosion threshold theory and tillage erosion process mechanism, can design sloping formula terrace land field face width degree more accurately, utilize domatic rill erosion and straight plowing to make measure grade eliminations such as erosion, make up sloping formula terrace land.
2, not only method is simple, cheap for this technology, and compared to the disposable level terraced field of accomplishing, can increase actual farming area, the economic plants hedge is set by the later stage on Kan Geng, solved the problem that the terraced fields raised path through fields takes up an area of in the transformation of sloping arable land, also can increase the peasant economy income, the peasant takes like a shot.
3, this method mainly adopts engineering and root system of plant concretion technology to build terraced bank, has reduced field face earthwork evacuation stemming operation, can solve the thin hillside fields of reservoir area of Three Gorges soil layer and can't disposablely build level terraced field or the high problem of level terraced field cost.
4, the present invention keep former domatic, need not face soil, smooth field, through ploughing grade elimination year by year, combine closely peasant's farming activities can form in cultivating procedure, except that adding the high maintenance of field bund, needn't construct separately, method is simple, cheap, and the peasant takes like a shot.
5, quicken the ground maturing process, increased soil thickness, improved hillside fields land quality and utilization rate.
Description of drawings
Fig. 1 is a vertical section of the present invention schematic diagram.
Fig. 2 is the generalized section that the present invention is arranged in actual slope.
The specific embodiment
Among Fig. 1, Fig. 2,1, the erosion caused by sloping surfaces position; 2, domatic alluvial position; 3, former line of slope; 4, back for many years equating line of slope; 5, upper level sediment trapping ladder bank; 5a, the husky terraced bank in next stage hurdle; 6-field face; L-designs length of grade; L
R, the critical length of grade of rill erosion.
The invention will be further described below in conjunction with accompanying drawing.
Design principle of the present invention is to utilize sloping arable land rill erosion threshold and tillage erosion process, artificial field bund, plant hedge or the sediment trapping ladder bank built, make domatic progressively ladderization through the natural erosion process, make up the soil erosion defense mode in arable land, slope " sloping formula terrace land+field bund+economic plants hedge ".
Content specific implementation method of the present invention is as follows:
1, utilizes rill erosion generation threshold and tillage erosion theory, precisely calculate the critical length of grade that the gently sloping surface rill erosion takes place;
2, adopt simple and easy engineering measure building sediment trapping band or field bund greater than the critical length of grade of rill erosion position (promptly designing length of grade), the original natural sty length of grade of brachymemma;
3, at domatic upper edge isohypse by certain interval and should be, perhaps on the existing earth steps that form naturally in the arable land, slope, with wire or perennial shrub of ribbon dense planting or herbaceous plant formation plant hedge at interval greater than the critical length of grade of rill erosion;
4, plough deeply by the slope orientation of ploughing in farming activities repeatedly, domatic soil is transmitted to descending, pile up, simultaneously down aspect is defeated under rainfall sputter and slope runoff souring moves for domatic soil particle, via the plant hedge, field bund or simple and easy civil engineering sediment trapping band are to the reduction of runoff velocity, make the silt alluvial of carrying in the runoff, along with increasing year by year of the bottom soil body, domaticly slow down gradually, at field bund, simple and easy civil engineering sediment trapping band and plant hedge place form the sloping formula terrace land with certain terraced bank height
5,,, and form the low bank of earth between fields along mound at bank at the firm terraced bank of terraced bank plantation perennial plant along with the increasing year by year of terraced bank;
6, under water erosion and tillage erosion continuous action, face top, field soil is progressively defeated downwards to be moved, and the field face is also progressively developed to level terraced field by sloping formula terrace land.
Referring to Fig. 1, Fig. 2, as can be seen, the technical essential of this method mainly is made up of three parts from the figure: (1) is according to the critical length of grade L of reservoir area slope arable land rill erosion
R, be a bit larger tham critical length of grade L domatic
RL place, position build simple and easy civil engineering sediment trapping band and form terraced bank, or (2) are at the domatic critical length of grade L of rill erosion that is a bit larger tham
RL place, position utilize farming activities to build field bund; Or (3) press certain interval L(greater than the critical length of grade L of rill erosion at domatic upper edge isohypse
R) or plough the earth steps (ridge) that now form naturally on the slope on, with wire or perennial shrub of ribbon dense planting or herbaceous plant, thereby the Implementation Modes of formation three-type-person worker natural type terraced fields constructing technology below provides embodiment and specifies.
Embodiment 1: field bund is built bank
The major function of field bund is the runoff of the domatic precipitation generation of interception and the silt that runoff carries.Generally all shorter, mostly be hand compaction and beating forms.Concrete job practices: draft field bund spacing L according to the critical length of grade of rill erosion, field bund spacing L is generally greater than the critical length of grade L of rill erosion
RMake and domatic between field bund rill erosion can take place, like this at the retrogressive erosion of domatic plume with along under the sloping souring, domatic top soil is defeated downwards gradually to be moved, because field bund is to the runoff of hillside fields, top output and retaining of silt, silt deposits in the position of field bund top, raises domatic gradually, thereby grade elimination, the peasant only needs annual or several years one time heightening and consolidation field bund.It is example that present embodiment is ploughed with 15 ° of slopes, purple soil area, build field bund (mostly being the low bank of earth between fields) by isohypse, the field bund spacing is set to 6m(greater than the critical length of grade of rill erosion), at first utilize the clear good ridge of farming activities base, successively go up soil and add rammer, go up soil thickness 10～20cm, be about 5～13cm after the compacting for every layer, go up soil for every layer and will dig a hair enhancing combination to compacting face before, ridge bank is tamped in the lump with subsoil; Tight polishing is clapped on the outer side slope of ridge bank, the above interior side slope of subsoil and top, the ridge " three faces "; Ridge bank side slope 1:0.6, the ridge is pushed up general 30cm above ground level and is advisable.Annual industrial crops such as perennial plant that the program request economic worth is bigger on field bund or beans solve field bund and take up an area of problem.
Embodiment 2: simple and easy civil engineering is built bank
Along isohypse, according to big curved making use of momentum, the principle of little curved cut-off, build simple and easy civil engineering domatic keeping at a certain distance away, this distance is slightly larger than the critical length of grade of rill erosion, adopts engineering materials such as log wood hedge, bamboo raft, biological frame, flyash bar shaped post, concrete hollow cell, piece stone to build bank then.It is example that present embodiment is ploughed with 15 ° of slopes, purple soil area, and spacing distance is set to 6m, and engineering materials is a piece stone.At first at domatic contour unwrapping wire, carry out raised path through fields base clearly, it highly is 35cm that excavation forms, the foundation trench about width 25cm, and along foundation trench drystone or fissure of displacement cemented rock, stone dam exceeds the domatic 20cm in top.Produce husky alluvial through dig year by year farming or domatic water erosion downwards, the field face gradient is progressively slowed down, when the soil body height that closes on stone dam when lower slope becomes silted up gradually and buries to the stone dam top, can make a low bank of earth between fields at the stone dam top than the high 20～30cm in ground, hand compaction is clapped tight, and on the low bank of earth between fields economic plants hedge such as plantation soya bean etc., strengthen the globality of ridge bank, also can be used as an approach that increases the peasant economy income.
Embodiment 3: the plant hedge is built bank
It promptly is on domatic upper edge isohypse is ploughed the first shape earth steps that now form naturally by certain interval or on the slope that the plant hedge is built bank, with wire or perennial shrub of ribbon dense planting or herbaceous plant, the wattled wall that forms energy dash, retaining soil produces alluvial with the erosion sediment that reaches its up-hill position.Along with the enhancing of plant hedge sediment trapping benefit, constantly by detention, just slow down gradually by the domatic gradient near the plant hedge for soil, and the gradient develops to ground, gentle slope gradually from steep hillslope gradually, and ploughing in the slope finally becomes gentle slope terraced fields or level terraced field.Plant hedge kind is selected based on indigenous species, and introduction is auxilliary, and based on the economic plants kind, simple ecological benefits kind is auxilliary.Present embodiment is according to arable land, the slope gradient and the different plant hedge kind of length of grade configuration.The high gradient at 20 °～25 ° is ploughed, and is target to conserve water and soil, and pays the utmost attention to the ecological benefits of plant hedge, plant hedge kind is a ramie, plant hedge bandwidth 0.3m, spacing in the rows 10 cm, plant hedge interband distance is that 3m(is greater than the critical length of grade of rill erosion), the horizontal wall inscription plantation; Medium gradient between 15 °～20 ° is ploughed, and is target to realize that ecological benefits and economic benefit are laid equal stress on, and plant hedge kind is an alfalfa, plant hedge bandwidth 0.3m, spacing in the rows 10 cm, plant hedge interband distance is that 6m(is greater than the critical length of grade of rill erosion), the horizontal wall inscription plantation.Plough in the low gradient less than 15 °, the plantation of suitable diversified economy plant, plant hedge kind is a sugar grass, plant hedge bandwidth 0.3m, spacing in the rows 10cm, plant hedge interband distance is that 7m(is greater than the critical length of grade of rill erosion), the horizontal wall inscription plantation.
Need to prove, the foregoing description is to the explanation of technical solution of the present invention and non-limiting, simple and easy civil engineering type is built by laying bricks or stones the stone dam except above-mentioned, can also be designed to types such as log wood hedge, bamboo raft, concrete hollow cell, flyash bar shaped post, biological basket according to local material source and lineament; The plant hedge is except above-mentioned sugar grass, alfalfa and ramie, can also be designed to soya bean, leek, heartily No. one, Chinese alpine rush, chrysanthemum etc. are herded in grass, osmanthus, layout on the plant hedge is ploughed on the slope is overall alternate with crops to be the shaped like narrow distribution, but different floristics bandwidth, seeding row spacing etc. are different; After the low bank of earth between fields or the sediment trapping effect for many years of plant hedge, the domatic gradient tends towards stability, will form soil property ladder bank at the low bank of earth between fields or plant hedge position, can protect bank or adopt log wood hedge, bamboo raft, concrete hollow cell, flyash bar shaped post, biological frame etc. to protect bank this moment bank face plantation perennial plant.
Claims (5)
1. reservoir area of Three Gorges artificial nature's type slope formula terrace land construction process, it is characterized in that: method is as follows:
A), utilize rill erosion generation threshold and tillage erosion theory, calculate the critical length of grade of gently sloping surface rill erosion;
B), according to greater than the interval location of the critical length of grade of rill erosion along the domatic sediment trapping ladder bank of constructing in turn, the bottom surface of all sediment trapping ladder banks is all stretched in the following soil of former line of slope, the end face of all sediment trapping ladder banks all exceeds former line of slope (3), and in the adjacent two sediment trappings ladder bank, the bottom surface of the end face of next stage sediment trapping ladder bank and upper level sediment trapping ladder bank is positioned on the same isohypse; Above-mentioned sediment trapping ladder bank is field bund formula sediment trapping ladder bank or simple and easy civil engineering formula sediment trapping ladder bank or plant hedge formula sediment trapping ladder bank.
2. artificial nature's type slope, reservoir area of Three Gorges according to claim 1 formula terrace land construction process is characterized in that: described field bund formula sediment trapping ladder bank construction method is as follows:
Utilize the clear good ridge of farming activities base, successively go up soil and add rammer, go up soil for every layer and will dig a hair enhancing combination to compacting face before, ridge bank is tamped in the lump with subsoil; Tight polishing is clapped on the outer side slope of ridge bank, the above interior side slope of subsoil and top, the ridge " three faces "; Ridge bank side slope 1:0.6, the annual industrial crops of perennial plant that the program request economic worth is bigger on field bund or beans solve field bund and take up an area of problem.
3. artificial nature's type slope, reservoir area of Three Gorges according to claim 1 formula terrace land construction process is characterized in that: the construction method of described simple and easy civil engineering formula sediment trapping ladder bank is as follows:
At first at domatic contour unwrapping wire, carry out raised path through fields base clearly, excavation forms foundation trench, adopts log wood hedge, bamboo raft, biological frame, flyash bar shaped post, concrete hollow cell or piece stone to construct terraced bank along foundation trench, and terraced bank exceeds the domatic 20cm in top; In cultivating procedure year by year, when the soil body height that closes on terraced bank when lower slope becomes silted up gradually and buries to terraced bank top, make the low bank of earth between fields than the high 20～30cm in ground at terraced bank top, hand compaction is clapped tight, and on the low bank of earth between fields, plant the economic plants hedge, strengthen the globality of ridge bank.
4. artificial nature's type slope, reservoir area of Three Gorges according to claim 1 formula terrace land construction process, it is characterized in that: the construction method of the husky terraced bank in described plant hedge formula hurdle is as follows: at domatic upper edge isohypse by on ploughing now naturally the first shape earth steps of formation greater than the interval of the critical length of grade of rill erosion or on the slope, with wire or perennial shrub of ribbon dense planting or herbaceous plant, the wattled wall that forms energy dash, retaining soil produces alluvial with the erosion sediment that reaches its up-hill position.
5. artificial nature's type slope, reservoir area of Three Gorges according to claim 4 formula terrace land construction process, it is characterized in that: in the construction method of described plant hedge formula sediment trapping ladder bank, the high gradient at 20 °～25 ° is ploughed, plant hedge kind is a ramie, plant hedge bandwidth 0.3m, spacing in the rows 10 cm, plant hedge interband is apart from being 3m, horizontal wall inscription is planted; Medium gradient between 15 °～20 ° is ploughed, and plant hedge kind is an alfalfa, plant hedge bandwidth 0.3m, and spacing in the rows 10 cm, plant hedge interband is apart from being 6m, horizontal wall inscription is planted; Plough in the low gradient less than 15 °, plant hedge kind is a sugar grass, plant hedge bandwidth 0.3m, and spacing in the rows 10cm, plant hedge interband is apart from being 7m, horizontal wall inscription is planted.
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| CN102392453A (en) * | 2011-09-14 | 2012-03-28 | 重庆师范大学 | Terrace bank construction method for changing slope farmland into level terrace in reservoir area of Three Gorges |
| CN102498779A (en) * | 2011-11-17 | 2012-06-20 | 中国科学院东北地理与农业生态研究所 | Combined cultivation method for water and soil conservation for sloping farmlands |
| CN104947692A (en) * | 2015-03-03 | 2015-09-30 | 西南大学 | Transformation method for protective slope of field ridge |
| CN105145068A (en) * | 2015-09-02 | 2015-12-16 | 中国农业科学院农业环境与可持续发展研究所 | Hedge earth bank ridge-direction pitting field having functions of conserving water, soil, nitrogen and phosphorus and cultivation method |
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| CN102392453A (en) * | 2011-09-14 | 2012-03-28 | 重庆师范大学 | Terrace bank construction method for changing slope farmland into level terrace in reservoir area of Three Gorges |
| CN102392453B (en) * | 2011-09-14 | 2014-06-04 | 重庆师范大学 | Terrace bank construction method for changing slope farmland into level terrace in reservoir area of Three Gorges |
| CN102498779A (en) * | 2011-11-17 | 2012-06-20 | 中国科学院东北地理与农业生态研究所 | Combined cultivation method for water and soil conservation for sloping farmlands |
| CN102498779B (en) * | 2011-11-17 | 2013-06-19 | 中国科学院东北地理与农业生态研究所 | Combined cultivation method for water and soil conservation for sloping farmlands |
| CN104947692A (en) * | 2015-03-03 | 2015-09-30 | 西南大学 | Transformation method for protective slope of field ridge |
| CN105145068A (en) * | 2015-09-02 | 2015-12-16 | 中国农业科学院农业环境与可持续发展研究所 | Hedge earth bank ridge-direction pitting field having functions of conserving water, soil, nitrogen and phosphorus and cultivation method |
| CN105145068B (en) * | 2015-09-02 | 2018-03-02 | 中国农业科学院农业环境与可持续发展研究所 | Plant hedge Geng Longxiang areas field and the methods of cultivation with water and soil nitrogen phosphorus holding effect |
| CN107853121A (en) * | 2017-12-08 | 2018-03-30 | 长江水利委员会长江科学院 | A kind of sloping upland agricultural non-point source pollution integrated control system and method |
| CN107853121B (en) * | 2017-12-08 | 2023-09-26 | 长江水利委员会长江科学院 | Comprehensive control system and method for agricultural non-point source pollution of hillside fields |
| CN109613208A (en) * | 2018-11-26 | 2019-04-12 | 贵州师范大学 | A kind of simulation experiment method of sloping upland gutter soil and water conservation benefit |
| CN109613209A (en) * | 2018-11-26 | 2019-04-12 | 贵州师范大学 | A kind of crop field simulation experiment method of sloping upland gutter soil and water conservation benefit |
| CN112832194A (en) * | 2021-01-08 | 2021-05-25 | 陕西省水土保持勘测规划研究所(陕西省水土保持生态环境监测中心) | Method for flexible concrete ecological bank protection in slope-to-ladder engineering |
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Application publication date: 20110907 |