CN110447331B - Technology for improving water retention of soil in hilly land - Google Patents
Technology for improving water retention of soil in hilly land Download PDFInfo
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- CN110447331B CN110447331B CN201910605051.XA CN201910605051A CN110447331B CN 110447331 B CN110447331 B CN 110447331B CN 201910605051 A CN201910605051 A CN 201910605051A CN 110447331 B CN110447331 B CN 110447331B
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- hilly
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- 239000002689 soil Substances 0.000 title claims abstract description 83
- 206010016807 Fluid retention Diseases 0.000 title claims abstract description 14
- 239000011490 mineral wool Substances 0.000 claims abstract description 68
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000010521 absorption reaction Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 5
- 238000012938 design process Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 241000219793 Trifolium Species 0.000 description 8
- 241001149649 Taxus wallichiana var. chinensis Species 0.000 description 7
- 241000196324 Embryophyta Species 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- 230000012010 growth Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 241000723418 Carya Species 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000001932 seasonal effect Effects 0.000 description 2
- 241001116500 Taxus Species 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008635 plant growth Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Images
Classifications
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- 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
-
- 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)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses a technology for improving water retention of soil in hilly lands, which comprises the following steps: step A, designing rock wool shapes; b, selecting places on the slope, in the slope and under the slope of the hilly land to dig a groove with a certain size; and step C, placing the rock wool manufactured in the step A into the groove in the step B, covering soil with a certain thickness on the top of the rock wool, and improving the moisture content of the nearby soil through the water absorption of the rock wool. The invention has the beneficial effects that: the water content change of the soil around the rock wool and the soil 50mm away from the rock wool has consistency, and under the condition of continuous rainfall, the water content of the soil with the embedded rock wool is almost the same as that of the soil without the embedded rock wool. The rock wool absorbs water during rainfall and can be released and supplemented to the soil nearby, and therefore the water content of the soil on the hilly land is improved. The rock wool applied by the invention is similar to soil, has good hydrophobicity, and can discharge excessive water.
Description
Technical Field
The invention relates to a technology for improving water retention of soil, in particular to a technology for improving water retention of soil in hilly lands, belonging to the technical field of forestry application.
Background
The mountainous and hilly lands are affected by topography and seasonal rainfall, and the water content of the soil is greatly changed. The method is usually characterized in that water and soil loss is caused by large slope of the terrain in mountainous and hilly areas, the soil is lack of moisture, the normal growth of plants is influenced, and the damage of seasonal drought is aggravated. The water source supply becomes a big problem, especially in the area with little rainwater, the sustainable development of agriculture and forestry economy is restricted because of the fact that much manpower, material resources and financial resources are consumed for irrigation. Therefore, a technique for improving the water retention of soil in hilly lands has been proposed in view of the above problems.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide a technique for improving water retention of soil in hilly areas.
The invention achieves the above purpose through the following technical scheme, and a technology for improving the water retention of soil in hilly lands comprises the following steps:
step A, designing rock wool shapes;
b, selecting places on the slope, in the slope and under the slope of the hilly land to dig a groove with a certain size;
and step C, placing the rock wool designed in the step A into the groove in the step B, covering thin soil with a certain thickness on the top of the rock wool, and improving the moisture content of the nearby soil through the water retention property of the rock wool.
Specifically, in the rock wool shape design process in step a, according to hilly land forest land soil layer characteristics, forest land forest root system scope, structural stability, demand and transportation convenience degree to moisture, design rock wool into length, width, height do respectively: 100mm, 1500mm rock wool products.
Specifically, in the step B, under clear weather, positions on a slope, in the slope and under the slope of the hilly land are selected, the surface soil of the forest land of the hilly land is shoveled out of 50-100mm of soil by a tool, and after the soil is taken out, grooves with the length of 1500-2000mm, the width of 100-200 mm and the depth of 200mm are dug on the hilly land.
Specifically, in the step C, rock wool is placed in the groove, and then surface soil is covered on the groove with the rock wool through a tool shovel, wherein the thickness of the covering soil is 50-100 mm.
Preferably, the length of the groove is 1500mm, the width is 100mm, the depth is 200mm, and the thickness of the covering soil is 50 mm.
Preferably, the length of the groove is 2000mm, the width of the groove is 200mm, the depth of the groove is 200mm, and the thickness of the covering soil is 100 mm.
The invention has the beneficial effects that:
(1) the rock wool surrounding soil has consistency with the change of the water content of the rock wool 50mm away from the rock wool, and under the condition of continuous rainfall, the water content of the soil with the embedded rock wool is almost the same as that of the soil without the embedded rock wool. Partial water absorbed by the rock wool during rainfall is released and supplemented to the soil nearby the surroundings, so that the soil water content of the hilly land is improved.
(2) The rock wool has good hydrophobicity as same as soil, can discharge redundant water, has good economic and social benefits, and is suitable for popularization and use.
Drawings
FIG. 1 is a graph showing the comparison of the water content of rock wool-free soil and rock wool-near soil at different detection points according to the present invention;
FIG. 2 is a diagram showing the change of water content in the soil of the root system of Taxus chinensis on a slope according to the present invention;
FIG. 3 is a graph showing the change of the water content of the soil of the root system of Taxus chinensis in a slope according to the present invention;
FIG. 4 is a graph showing the change of water content in the soil of the root system of Taxus chinensis under a slope according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, a technique for improving water retention of soil in hilly areas includes the steps of:
step A, designing rock wool shapes;
b, selecting places on the slope, in the slope and under the slope of the hilly land to dig a groove with a certain size;
and step C, placing the rock wool designed in the step A into the groove in the step B, covering soil with a certain thickness on the top of the rock wool, and improving the moisture content of the nearby soil through the water absorption of the rock wool.
Specifically, in the rock wool design process in step A, according to hilly land forest land soil layer characteristics, forest land forest root system scope, structural stability, demand and the transportation convenience degree to moisture, design rock wool for length, width, height do respectively: 100mm, 1500mm rock wool products.
Specifically, in the step B, under clear weather, positions on a slope, in the slope and under the slope of the hilly land are selected, surface soil of the forest land of the hilly land is shoveled out by a tool to a depth of 50-100mm, and after the soil is taken out, grooves with the length of 1500-2000mm, the width of 200mm and the depth of 200mm are dug on the hilly land.
Specifically, in the step C, rock wool is placed in the groove, and then surface soil is covered on the groove with the rock wool through a tool shovel, wherein the thickness of the covering soil is 50-100 mm.
Example one
Use certain province hickory woodland as the test object, according to hilly land woodland soil layer characteristics, woodland root system scope, structural stability, demand and the transportation convenience degree to moisture, be rock wool design for length, width, height respectively: 100mm, 1500mm rock wool products. Selecting the positions on the slope, in the slope and under the slope of a hilly land, shoveling 50-100mm of soil from surface soil at the position of 1m of the radius of the hickory by a tool, digging the groove with the length of 1500mm, the width of 100mm and the depth of 200mm, manually burying 100 x 1500mm of rock wool in the test forest land, wherein the burying depth is 200mm, and the thickness of covering soil is 50 mm. And uniformly sowing clover seeds in the forest land, observing the growth condition of the clovers, and flourishing the growth of the clovers paved with rock wool. A sampling point is set at a position 50mm away from rock wool, and a soil sample of 0-200mm is taken at a position 50mm away from the rock wool to measure the water content of the soil by a drying method, as shown in figure 1.
Example two
Use certain province chinese yew woodland as the test object, according to chinese yew woodland soil layer characteristics, woodland chinese yew root system scope, structural stability, to demand and the transportation convenience degree of moisture, be the rock wool design for length, width, height respectively: 100mm, 1500mm rock wool products. Selecting the positions on the slope, in the slope and under the slope of the hilly land, shoveling 50-100mm of surface soil at the position 400mm away from the root of the taxus chinensis by a tool, and digging the groove with the length of 2000mm, the width of 200mm and the depth of 200 mm. The probe is horizontally inserted at the depth of 100mm, rock wool with the depth of 100X 1500mm is artificially buried, the buried depth is 200mm, the thickness of covering soil is 50mm, and then the probe is horizontally inserted at the position of 50mm of taxus roots near the rock wool, and the probe depth is 100 mm. And measuring the water content of the soil at regular time by using a TDR time domain reflection principle.
Through observation of the first embodiment, the soil water content of the root system of the plant near the rock wool is measured for a long time, and the result shows that the clover where the rock wool is buried is obviously better in growth, the clover is difficult to normally grow without rock wool treatment, and the clover is selected for planting, because the clover has higher requirement on soil water and is difficult to grow under drought conditions, the clover can be well used as a soil water content indicating plant.
The observation of example two shows that the water content of the soil near the embedded rock wool is higher than that of the soil without rock wool. The water content of the plant roots on, in and under the slopes is shown in fig. 2, 3 and 4, and it can be seen from the graphs that the water content of the soil near the rockwool and near the planted roots is consistent, the water content of the soil near the rockwool and near the planted roots is almost the same in the case of continuous rainfall, and the water content of the soil near the rockwool and near the planted roots is higher than that of the control group, which shows that the absorbed water of the rockwool after rainfall is released to supplement the soil near the planted roots around. In the case of continuous sunny days or low rainfall (<10mm), the water content of the soil near the rockwool is higher than that of the soil near the roots without the rockwool, and the water content is consistent again when sufficient rainfall is met (such as continuously monitored days 31, 48, 57, 66, 88 and 91). The difference between the rock wool and the control soil is small when the rainfall is performed, and the difference is larger when the weather is clear, so that the rock wool can relieve the reduction of the soil moisture and ensure the moisture requirement of plants. And the monitoring result shows that the rock wool has obvious effect on improving the water retention performance of the soil of the hilly land on and in the slope, but has no obvious improvement on the slope.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (3)
1. A technique for improving water retention of soil in hilly lands, characterized by: the method comprises the following steps:
step A, designing rock wool shapes;
b, selecting places on the slope, in the slope and under the slope of the hilly land to dig a groove with a certain size;
step C, placing the rock wool manufactured in the step A into the groove in the step B, covering soil with a certain thickness on the top of the rock wool, and improving the moisture content near the soil through the water absorption of the rock wool;
in the rock wool design process in the step A, according to hilly land forest land soil layer characteristics, forest land forest root system scope, structural stability, demand and the transportation convenience degree to moisture, design rock wool as length, width, height do respectively: rock wool products of 100mm, 100mm and 1500 mm;
in the step B, selecting positions on a slope, in the slope and under the slope of the hilly land in sunny weather, shoveling surface soil at the top of the hilly land to a depth of 50-100mm by using a tool, and digging a groove with the length of 1500mm, the width of 100mm-200mm and the depth of 200mm on the hilly land after taking out the thin soil;
and C, placing the rock wool into the groove, and covering surface soil on the top of the rock wool by using a tool shovel, wherein the thickness of the covered thin soil is 100 mm.
2. The technique for improving water retention of soil on hilly grounds according to claim 1, wherein: the length of recess is 1500mm, the width is 100mm, the degree of depth is 200mm, and the thickness of covering the subsoil is 50 mm.
3. The technique for improving water retention of soil on hilly grounds according to claim 1, wherein: the length of recess is 2000mm, the width is 200mm, the degree of depth is 200mm, covers the thickness of subsoil and is 100 mm.
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| CN110447331B true CN110447331B (en) | 2022-03-29 |
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Citations (8)
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| JPH04121114A (en) * | 1990-09-07 | 1992-04-22 | Mitsubishi Kasei Vinyl Co | Rock wool fine particle fabric cultivation soil |
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