CN110097272A - A kind of method that quick determining Aneurolepidium Chinense Meadow grassland cradles the height for the stubble left - Google Patents
A kind of method that quick determining Aneurolepidium Chinense Meadow grassland cradles the height for the stubble left Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 241000511730 Leymus chinensis Species 0.000 title claims abstract description 17
- 244000025254 Cannabis sativa Species 0.000 claims abstract description 18
- 238000002474 experimental method Methods 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 238000010009 beating Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 5
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- 238000005303 weighing Methods 0.000 claims description 2
- 239000002028 Biomass Substances 0.000 abstract description 3
- 241000196324 Embryophyta Species 0.000 description 15
- 238000005520 cutting process Methods 0.000 description 14
- 230000035613 defoliation Effects 0.000 description 6
- 238000011160 research Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000004459 forage Substances 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 239000002655 kraft paper Substances 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
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- 230000029553 photosynthesis Effects 0.000 description 2
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
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- 241001353524 Lespedeza davurica Species 0.000 description 1
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- 241000219873 Vicia Species 0.000 description 1
- 230000009418 agronomic effect Effects 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention belongs to determine that grassland cradles height for the stubble left method and technology field, a kind of method that quick determining Aneurolepidium Chinense Meadow grassland cradles the height for the stubble left is disclosed.For the present invention primarily to the northern meadow steppe of solution is beaten the grass when season, the grassland under varying environment state most preferably cradles the technical problem that the height for the stubble left can not determine.The method comprise the steps that one, establish and small-sized cradle gradient experiment；Two, it mows, dries, weigh；Three, it calculates and takes away biomass ratio under the corresponding different heights for the stubble left, establish regression equation model；Four, the height for the stubble left for cradling and taking away 50% yield is calculated, the clipping pasture is cradled according to this height for the stubble left.This method is easy to operate, low in cost, and later period income is huge.
Description
Technical field
The invention belongs to determine that grassland cradles height for the stubble left method and technology field, present invention relates particularly to a kind of quick determinations
The method that Aneurolepidium Chinense Meadow grassland cradles the height for the stubble left.
Background technique
Cradle is one of the agronomic measures regulated and controled to herbaceous plant and the most important human interference factor.It cradles
It is the Main Factors for influencing Grassland ecosystems feature, has a direct impact to steppe plant community productivity.It is existing largely to grind
Study carefully the power of regeneration for showing that grass-cutting treatment can improve Plant aboveground component, and improve the accumulation of its biomass, improves group's knot
Structure.Grass-cutting treatment can also destroy plant individual blade, lead to plant photosynthesis tissue damaged and then influence the intracorporal carbon of plant and support
Content is divided to reduce (Mcnaughton et al.1983).Influence that grass-cutting treatment generates different grassland types is simultaneously different
It causing, the influence for GRASSES WITH DIFFERENT also differs widely, in previous research, more than 100 kinds of herbages in prairie, for not
(Sott L et al.1998) is all different with influence caused by the grass-cutting treatment of time and frequency.Research is different in the world
The result that cradling the height for the stubble left influences grassland has: the research of Hofmann (1981) and Leyshon (1992) are pointed out to cradle to standing grain
Grass is affected, and suitable cradling can promote the regeneration and tiller of dogstail；Influence of the grass-cutting treatment for grassland is much smaller than and applies
Fertilizer processing (T2008)；Long-term grass-cutting treatment can cause the variation of plant species N, P, K element, more hold compared to fertilising
The yield (L Pavlu et al.2013) of herbage easy to control；The content of carbohydrate is influenced by Cutting in plant,
Its influence degree and season are related (P A Loaiza et al.2016).
The difference of grass-cutting treatment can be summarized as 3 kinds of grass-cutting treatment methods: Defoliation rate, cutting occasion and cradle frequency.Have
Have many reports with the research for cradling frequency about optimal cutting occasion: the Chinense Grassland grass-cutting treatment in relation to loose browse original is ground
Show that its Species Diversity in Plant index of 1 grassland and species richness index were cradled every 3~4 years to be above and do not cut in studying carefully
Mowing pasture, and a large amount of leguminous plant in grassland extensively growth (such as: Lespedeza daurica, five arteries and veins grass vetch, oblique stem Radix Astragali etc.
A large amount of distributions)；But the grassland excessively cradled year after year, dogstail and leguminous plant quantity for cradling poor resistance are in decline
Trend, or even disappear, and causes biodiversity index to decline, grassland yield decline, cause grassland degeneration (Wang Renzhong,
1963).Grassland in northern China resource shows that natural meadow mowing frequency is 1 year in the production practices and scientific research of many years
Be once that comparison is reasonable, and cutting occasion is usually in late July to mid-August, with its obtain higher Grass Quality and
Biggish ground biomass (Zhong Yankai etc., 2012；Yang Shangming etc., 2016；Y Song,et al.2018).Defoliation rate is to plant
The influence of object than cutting occasion, cradle frequency and have more importance (.2012 such as Li Xin).Defoliation rate is usually characterized with the height for the stubble left
(Zhang Qingqing etc., 2018).In general, when Defoliation rate is larger (height for the stubble left is low), forage yield is high, Defoliation rate hour
(height for the stubble left is high), forage yield is low (Wang Guoliang etc., 2007).But high-intensitive cradling will lead to plant individual photosynthetic organs
A large amount of losses, photosynthesis decline and then organic matter accumulation are caused to reduce, and influence plant next year power of regeneration and subterraneous root substance
Storage capacity (Hou Yurong etc., 2015) finally influences later forage yield and ecosystem stability (Zhu Jue etc., 2009).
Domestic and international lot of experiments thinks that utilization rate is advisable (Shi Changhui, 1991) with 50% or so.Grass can be both efficiently used in this way
Ground can also make part nutriment participate in the circulation of itself, maintain bio-diversity and ecosystem stability, be continued with reaching
The purpose (Zhong Yankai and Bao Qinghai, 1999) utilized.The U.S. is also 50% to the regulation of grassland utilization ratio.Therefore, it 50% cuts
It cuts intensity or utilization rate is the standard that cradles of meadow sustainable use, the utilization rate=amount of beating the grass ÷ total output × 100%.Meadow
It is Defoliation rate that utilization rate is representative under the conditions of being suitable for cradling, however since the yield on meadow is influenced by precipitation, year
Border fluctuation is big, and 50% utilization standard is different every year, it is therefore desirable to establish one and quickly determine the method for cradling the height for the stubble left.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides a kind of quick determining Aneurolepidium Chinense Meadow grassland and cradles the height for the stubble left
Method, this method can reduce grass-land deterioration, maintain bio-diversity；And it is easy to operate, be conducive to promote, it is low in cost,
Later period income is huge.
The main object of the present invention be in order to solve northern meadow steppe beat the grass season when, grassland under varying environment state
Most preferably cradle the technical problem that the height for the stubble left can not determine.
Above-mentioned purpose of the invention is achieved through the following technical solutions:
A kind of method that quick determining Aneurolepidium Chinense Meadow grassland cradles the height for the stubble left, comprising: one, establish it is small-sized cradle gradient reality
It tests；Two, it mows, dries, weigh；Three, it calculates and takes away production ratio under the corresponding different heights for the stubble left, establish regression equation mould
Type；Four, the height for the stubble left for cradling and taking away 50% yield is calculated, the clipping pasture is cradled according to this height for the stubble left.
Above-mentioned quick determining Aneurolepidium Chinense Meadow grassland cradles the method for the height for the stubble left, and specific step is as follows:
(1) grassland region is being cradled, is beating the grass and starts the last week, 5 50 × 50cm are randomly selected in clipping pasture2Sample prescription,
It is cradled respectively according to 3,6,9,12, the 15cm height for the stubble left, then carries out cradling together in original sample side again, mark,
It is respectively charged into a paper bag, repetition is done and tests 4-8 times；
(2) fresh grass after cradling is put into 60-80 DEG C of baking oven and carries out drying 48 hours, weighing is accurate to 0.1g, as sample
Square yield；
(3) by 3,6,9,12, the yield of the 15cm height for the stubble left divided by corresponding total output, be considered as band under the different heights for the stubble left
Production ratio is walked, then to cradle the height for the stubble left as x-axis in Excel, taking away production ratio is that y-axis does scatter plot, is established back
Return equation model；
(4) enable y=50% in model, find out x, as cradle take away 50% yield the height for the stubble left, according to height into
Row meadow cradles；
(5) due to the presence of meadow heterogeneity, in the case where conditions permit, increase repeat experiment number as far as possible, missed with reducing
Difference and raising precision.
Further, the paper bag in specific steps (1) is kraft paper bag.It selects paper bag ventilative, facilitates drying, other sack
Airtight, plant is easy mouldy.
Further, the correspondence total output in specific steps (3) cradles sample prescription with corresponding flush with ground for height for the stubble left yield
The sum of yield.
The method of above-mentioned offer Hulun Buir Sandy Land, south, Ergun City meadow steppe determination most preferably cradle
The application of the height for the stubble left.
Compared with the prior art, the invention has the advantages that: a kind of quick determining Aneurolepidium Chinense Meadow provided through the invention
The method that grassland cradles the height for the stubble left can be directed under varying environment, cradle the height for the stubble left with scientific and normal to grassland
It determines, helps to optimize forage yield, mitigate grass-land deterioration, maintain bio-diversity.And it is easy to operate to be illustrated, conducive to pushing away
Extensively, no matter can be practiced easily for herdsman or scientific experiment person.Of the invention is mainly characterized by: it is easy to operate, it is at low cost
Honest and clean, later period income is huge.
1. easy to operate:
The present invention need to only be operated in the last week of beating the grass, and implementation method is very concise, be easy to learn, and can be promoted
Widespread adoption.
2. low in cost:
The present invention measures every time cradles the height for the stubble left only and needs the expenses such as artificial (100-200 member), baking oven electricity consumption (30-50 member)
With measurement cradles height for the stubble left cost at 300 yuan or less every time.
3. later period income is huge:
Either for grassland or local herdsman, there is the method for this quick determining height for the stubble left, grass can be optimized
Ground yield brings economic benefit, and on the Inner Mongol Ergun City town Hei Shantou Aneurolepidium Chinense Meadow grassland, experiment shows within such as 2018
Grassland yield is 215g/m under 50% utilization rate2, yield 202g/m in grassland when tradition cradles height for the stubble left 6cm2, grassland yield mentions
It is high by 6.4%, and grass-land deterioration can be mitigated, maintain bio-diversity, grassland ecosystem function is improved, is brought for descendants
Huge ecological environment income.
Detailed description of the invention
Fig. 1 is the equation model result figure in embodiment 1.
Fig. 2 is the equation model result figure in embodiment 2.
The scene photo operated in the position Fig. 3 embodiment 2.
Specific embodiment
The present invention is described in detail below by specific embodiment, but is not limited the scope of the invention.Unless otherwise specified, originally
Experimental method used by inventing is conventional method, and experiment equipment used, material, reagent etc. commercially obtain.
Embodiment 1
On the Inner Mongol Ergun City town Hei Shantou Aneurolepidium Chinense Meadow grassland, in Augusts, 2017 just carry out cradling the height for the stubble left true
Fixed experiment, specific as follows:
A kind of method that quick determining Aneurolepidium Chinense Meadow grassland cradles the height for the stubble left, the specific steps are as follows:
(1) grassland region is being cradled, is beating the grass and starts the last week, 5 50 × 50cm are randomly selected in clipping pasture2Sample prescription,
It is cradled respectively according to 3,6,9,12, the 15cm height for the stubble left, then carries out cradling together in original sample side again, mark,
It is respectively charged into a kraft paper bag, repetition is done and tests 7 times.
(2) fresh grass is put into 60-80 DEG C of baking oven and carries out drying 48h, weighed, be accurate to 0.1g, as sample prescription yield.
(3) by 3,6,9,12, (height for the stubble left yield+correspondence flush with ground is cut divided by total output for the yield of the 15cm height for the stubble left
Cut the yield of sample prescription), it is considered as under the different heights for the stubble left and takes away production ratio, then to cradle the height for the stubble left as x in Excel
Axis, taking away production ratio is that y-axis does scatter plot, establishes regression equation model.
(4) enable y=50% in model, find out x, as cradle take away 50% yield the height for the stubble left, according to height into
Row meadow cradles.
Sampling Area is 50 × 50cm in above method operation2, 7 repetition experiments.Equation model result as shown in Figure 1,
The height for the stubble left obtained 2017 is 18cm.
Embodiment 2
On the Inner Mongol Ergun City town Hei Shantou Aneurolepidium Chinense Meadow grassland, in August, 2018 just carries out cradling the height for the stubble left
Determine experiment, specific as follows:
A kind of method that quick determining Aneurolepidium Chinense Meadow grassland cradles the height for the stubble left, the specific steps are as follows:
(1) grassland region is being cradled, is beating the grass and starts the last week, 5 50 × 50cm are randomly selected in clipping pasture2Sample prescription,
It is cradled respectively according to 3,6,9,12, the 15cm height for the stubble left, then carries out cradling together in original sample side again, mark,
It is respectively charged into a kraft paper bag, repetition is done and tests 8 times.
(2) fresh grass is put into 60-80 DEG C of baking oven and carries out drying 48h, weighed, be accurate to 0.1g, as sample prescription yield.
(3) by 3,6,9,12, (height for the stubble left yield+correspondence flush with ground is cut divided by total output for the yield of the 15cm height for the stubble left
Cut the yield of sample prescription), it is considered as under the different heights for the stubble left and takes away production ratio, then to cradle the height for the stubble left as x in Excel
Axis, taking away production ratio is that y-axis does scatter plot, establishes regression equation model.
(4) enable y=50% in model, find out x, as cradle take away 50% yield the height for the stubble left, according to height into
Row meadow cradles.
Sampling Area is 50 × 50cm in above method operation2, 8 repetition experiments.Equation model result as shown in Fig. 2,
Obtain the height for the stubble left in 2018 are as follows: 8cm.
Embodiment described above is merely a preferred embodiment of the present invention, and simultaneously the whole of the feasible implementation of non-present invention implement
Example.For persons skilled in the art, the appointing to made by it under the premise of without departing substantially from the principle of the invention and spirit
What obvious change, should all be contemplated as falling within claims of the invention.
Claims (4)
1. a kind of method that quick determining Aneurolepidium Chinense Meadow grassland cradles the height for the stubble left, characterized in that include: one, establish small-sized cut
Cut gradient experiment；Two, it mows, dries, weigh；Three, it calculates and takes away production ratio under the corresponding different heights for the stubble left, establish and return
Equation model；Four, the height for the stubble left for cradling and taking away 50% yield is calculated, the clipping pasture is cut according to this height for the stubble left
It cuts.
2. a kind of method that quick determining Aneurolepidium Chinense Meadow grassland cradles the height for the stubble left as described in claim 1, characterized in that side
Specific step is as follows for method:
(1) grassland region is being cradled, is beating the grass and starts the last week, 5 50 × 50cm are randomly selected in clipping pasture2Sample prescription, press respectively
It is cradled according to 3,6,9,12, the 15cm height for the stubble left, then carries out cradling together in original sample side, mark, be respectively charged into
One paper bag does repetition and tests 4-8 times；
(2) fresh grass after cradling is put into 60-80 DEG C of baking oven and carries out drying 48 hours, weighing is accurate to 0.1g, and as sample prescription produces
Amount；
(3) by 3,6,9,12, the yield of the 15cm height for the stubble left divided by corresponding total output, be considered as under the different heights for the stubble left and take away production
Amount ratio, then to cradle the height for the stubble left as x-axis in Excel, taking away production ratio is that y-axis does scatter plot, establishes recurrence side
Journey model；
(4) enable y=50% in model, find out x, as cradle take away 50% yield the height for the stubble left, according to height carry out grass
Ground cradles.
3. a kind of method that quick determining Aneurolepidium Chinense Meadow grassland cradles the height for the stubble left as claimed in claim 2, characterized in that step
Suddenly the correspondence total output in (3) is the sum of the yield that height for the stubble left yield cradles sample prescription with corresponding flush with ground.
4. a kind of quick determining Aneurolepidium Chinense Meadow grassland such as claimed in any one of claims 1-3 cradles answering for the method for the height for the stubble left
With, characterized in that Hulun Buir Sandy Land, south, Ergun City meadow steppe determine and most preferably cradle the height for the stubble left.
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