CN101390487B - Method of in-situ remediation for alkaline land by improving small-hole and planting artificial forest - Google Patents
Method of in-situ remediation for alkaline land by improving small-hole and planting artificial forest Download PDFInfo
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- CN101390487B CN101390487B CN2008101372966A CN200810137296A CN101390487B CN 101390487 B CN101390487 B CN 101390487B CN 2008101372966 A CN2008101372966 A CN 2008101372966A CN 200810137296 A CN200810137296 A CN 200810137296A CN 101390487 B CN101390487 B CN 101390487B
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Abstract
The invention relates to an improved small-hole in-situ restoration saline land plantation method; to build plantation, hole-like leveling is carried out on the saline land; a layer of broken corn stalks, a layer of cow dung and a layer of corn straws are sequentially laid at the hole bottoms; then the artificial biological matrix of fermented corn straws and cow dung is mixed with luvisol to form the artificially improved soil which is then laid in the holes, and saline-alkaline reducing agent is poured on the improved soil; the seedlings are planted in the holes, set and watered; finally, the artificially improved soil is accumulated around the permanently planted seedlings and coned, and then topsoil film former is laid on the conical artificially improved soil. To prevent the roots extending into the hole bottoms and contacting the luvisol to cause damage, a run-through feeding channel is dug between every two holes and filled with artificially improved soil to induce the roots to grow horizontally in the channel.
Description
Affiliated technical field:
The present invention relates to the preparation of biofermentation conversion zone and artificial bio-membrane's matrix, in-situ remediation method is shown native film forming agent and is sprayed, and is mainly used in improveing the soil physical arrangement and reduces salt and alkali component.
Background technology:
China is a large agricultural country, and agricultural development is one of important component part of the national economic development.Soil desertification, the soil salinization are the MAIN SOILS problems that China faces, and there are salt wasteland and the 6700000 hectares of salinization lands above 2,000 ten thousand hectares in China.Salt affected soil refers to contain in the soil harmful salts such as the chloride, sulphate, heavy carbonate of potassium, sodium, calcium, magnesium; Though or soil salt content is few, soil exchangeable sodium accounts for cation exchange capacity and has reached certain proportion.Principal character pH value is higher, contains harmful salinity, seriously restricts the growth of plant.
The reparation of vesicle improvement original position is to have utilized the medically thought of " skin-grafting ", the humus layer artificially that lacks on the saline-alkali bare land is filled, and take maize straw and cow dung as primary raw material, make up saline and alkaline layer of bio-acidification resistance.Saline-alkali bare land is owing to the humus layer that lacks plant growth, and eluvial horizon is not suitable for taking root of root system of plant, by manually filling up humus layer, produces artificially the matrix that is fit to plant growth.In addition, the one of the main reasons that saline-alkali bare land forms be exactly evaporation discharge greater than rainfall, one deck table soil film forming agent by spraying has reduced the evaporation of moisture, keeps moisture.
Summary of the invention:
Main purpose of the present invention is the improvement saline land, in order to achieve the above object, the technical solution used in the present invention comprises: at first carry out cave-shaped whole ground in the saline land, excavated diameter 60cm, the vesicle of high 40cm, then interval 1.5m between two caves mixes the cave-shaped luvisol that digs out wholely with the artificial bio-membrane's matrix that cure into maize straw and cow dung in advance, it is for subsequent use to be modulated into artificial modified soil.Place mat a layer thickness is the maize straw of 10cm in the bottom, cave, continues on it and executes the cow dung that a layer thickness is 5cm, renews on it and executes the maize straw that a layer thickness is 10cm.Then, artificial modified soil is imposed in the cave, thickness is 5cm, pouring 1L-2L salt reduction alkaline agent on it.Sapling is planted in the cave, the rear fixedly root system of artificial modified soil of using repeatedly tramps with one's feet and steps on, and root system and artificial modified soil is fully contacted, and waters the well water of about 60L on it again again.At last, piling height is conical as the artificial modified soil of 30cm centered by the field planting sapling, to prevent the cave internal water accumulation, uses the native film forming agent of table at conical artificial modified soil again, runs off to prevent artificial modified soil, and reduces soil evaporativeness.For preventing that root system from stretching into that the contact luvisol damages at the bottom of the cave, between two caves, excavate wide 20cm, the degree of depth is the connectivity of the 40cm ditch of looking for food, and fills up artificial modified soil in it, ties up to cross growth in the ditch to induce tree root.This method make cave-shaped whole ground, saline land the soil physics structure be improved significantly, soil density and salt and alkali component in the cave have been reduced, increased the content of organic matter around the root system in the cave, prevent from waterloging season cave internal water accumulation polysalt and dry season the excessive evaporation accumulation of salt in the surface soil, therefore can guarantee that the tree of building can grow by normal growth.Solved simultaneously the difficult problem of local cow dung contaminated environment, the discarded waste of a large amount of maize straws.
Advantage of the present invention:
1 improvement alkaline land soil structure has reduced soil density and salt and alkali component in the cave;
It is acid that 2 salt reduction alkaline agents belong to, and can neutralize from the soil bottom or the hole wall returns out saline and alkaline;
3 ditches of looking for food utilize the performance of plant intelligent, and root system extends to the place that is fit to growth, have solved because root system can not be grown downwards, draw nutrient and death;
4 artificial substratums are comprised of cow dung, maize straw, and these things can be referred to as discarded object, and we as plant growth medium, for plant growth provides nutrition, have solved again the trouble that discarded object brings with it;
5 pile up conical little mount centered by the forest plantation nursery stock, prevented waterlogging season cave internal water accumulation polysalt and dry season the excessive evaporation accumulation of salt in the surface soil;
The native film forming agent of 6 tables prevents that artificial modified soil runs off, and reduces soil evaporativeness.
Embodiment:
Below, the present invention will be further detailed with embodiment, but it is not limited to any or the similar example of these embodiment.
1 piled up slaking 1-2 month with 2: 1 with cow dung maize straw is broken.
2 dig diameter 60cm, the vesicle of high 40cm, two caves interval 1.5m, dig out wide 20cm between two caves, the high 40cm connectivity ditch of looking for food, with the cave-shaped luvisol that digs out wholely with mix with the broken artificial bio-membrane's matrix that cure into cow dung of maize straw in advance, it is for subsequent use to be modulated into artificial modified soil;
3 is that the maize straw of 10cm is broken in cave bottom place mat a layer thickness, continues it on and executes the cow dung that a layer thickness is 5cm, and renewing on it and executing a layer thickness is that the maize straw of 10cm is broken.Then, artificial modified soil is imposed in the cave, thickness is 5cm, pouring 1.2L salt reduction alkaline agent is planted poplar seedlings in the cave again on it, and is rear with the native fixedly root system of artificial modified, repeatedly tramp with one's feet and step on, root system is fully contacted with artificial modified soil, water again the well water of about 60L on it;
4 usefulness artificial modified soil fill up the ditch of looking for food, and also water in the lump;
5 centered by the poplar seedlings of field planting piling height be 30cm, radius is the artificial modified soil of 60cm, is conical, to prevent the cave internal water accumulation;
6 use the native film forming agent of table at conical artificial modified soil again, are 2.5L according to permeating upper soll layer 2mm computational chart soil film forming agent consumption, evenly spray on the taper Artificial Soil;
After 7 improvement, willow growth in thickness, high growth and the hat width of cloth all improve nearly 3 times, and soil density reduces 1000kPa approximately, and growth of poplar is improved significantly.
Claims (5)
1. the method for an alkaline land small-hole improving in-situ remediation for artificial forest planting, for building forest plantation, at first carry out cave-shaped whole ground in the saline land, in bottom, cave successively place mat one deck maize straw, one deck cow dung, one deck maize straw, then, the artificial modified soil that artificial bio-membrane's matrix after maize straw and the cow dung slaking is mixed with luvisol imposes in the cave, pouring salt reduction alkaline agent on it, again sapling is planted in the cave, setting-in watering, last, centered by the field planting sapling, pile up artificial modified soil, be conical, use the native film forming agent of table at conical artificial modified soil again, stretch into for preventing root system that the contact luvisol damages at the bottom of the cave, between two caves, excavate the connectivity ditch of looking for food, fill up artificial modified soil in it, tie up to cross growth in the ditch to induce tree root.
2. according to the method for alkaline land small-hole improving in-situ remediation for artificial forest planting claimed in claim 1, it is characterized in that: cave-shaped whole ground namely excavates dark 40cm, the vesicle of diameter 60cm, interval 1.5m between two caves.
3. according to the method for alkaline land small-hole improving in-situ remediation for artificial forest planting claimed in claim 1, it is characterized in that: artificial bio-membrane's matrix and artificial modified soil are primary raw material by farming, woods, pastoral area discarded object maize straw, cow dung, the former directly places deep subsoil, according to maize straw: cow dung: maize straw=proportional layered placement in 2: 1: 2 has and intercepts and the saline and alkaline effect that neutralizes; The latter is according to maize straw: cow dung=2: 1 ratios are banked up after the fermentation of ground, form artificial modified soil with saline-alkali soil according to 2: 3 ratio mixings, for the growth of plant provides nutrient, increased soil humus after the decomposition, produce excessive salt and alkali component in the sour neutralized salt alkaline earth.
4. according to the method for alkaline land small-hole improving in-situ remediation for artificial forest planting claimed in claim 1, it is characterized in that: piling height is the conical artificial modified soil of 30cm centered by the field planting sapling, to prevent the cave internal water accumulation, use the native film forming agent of table at conical artificial modified soil again, according to permeating upper soll layer 2mm depth calculation consumption, run off to prevent that artificial modified is native, and reduce soil evaporativeness.
5. according to the method for alkaline land small-hole improving in-situ remediation for artificial forest planting claimed in claim 1, it is characterized in that: look for food ditch between vesicle, degree of depth 40cm, width 20cm, connect in the middle of two caves, fill up artificial modified soil in it, tie up to cross growth in the ditch to induce tree root, in process of growth, be evolved into shallow root system, prevent that root system from stretching into that the contact luvisol damages at the bottom of the cave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101372966A CN101390487B (en) | 2008-10-13 | 2008-10-13 | Method of in-situ remediation for alkaline land by improving small-hole and planting artificial forest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101372966A CN101390487B (en) | 2008-10-13 | 2008-10-13 | Method of in-situ remediation for alkaline land by improving small-hole and planting artificial forest |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101390487A CN101390487A (en) | 2009-03-25 |
| CN101390487B true CN101390487B (en) | 2013-03-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101372966A Expired - Fee Related CN101390487B (en) | 2008-10-13 | 2008-10-13 | Method of in-situ remediation for alkaline land by improving small-hole and planting artificial forest |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101940147A (en) * | 2010-09-29 | 2011-01-12 | 安茂生物科技有限公司 | Poplar tree cultivating method for improving saline-alkaline land |
| CN102626046B (en) * | 2012-04-27 | 2013-07-31 | 新疆林业科学院 | Forestation method by drilling hole for promoting rapid growth of root system |
| CN102626045B (en) * | 2012-04-27 | 2013-07-31 | 新疆林业科学院 | Root-rapid-growth afforestation method by digging |
| CN107710944A (en) * | 2017-10-09 | 2018-02-23 | 何锋 | Water-saving sandwich-type saline and alkali land improvement method |
| CN107517613A (en) * | 2017-10-09 | 2017-12-29 | 何锋 | Saline-alkali soil improvement method |
| CN107624392A (en) * | 2017-10-09 | 2018-01-26 | 何锋 | Urban afforestation salt-soda soil Opsonizing method |
| CN107852883A (en) * | 2017-11-02 | 2018-03-30 | 成都金川田农机制造有限公司 | A kind of modification method of sand |
| CN112715309A (en) * | 2020-12-31 | 2021-04-30 | 中国科学院遗传与发育生物学研究所农业资源研究中心 | Simple and efficient method for planting alfalfa in heavy saline-alkali soil and special device thereof |
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2008
- 2008-10-13 CN CN2008101372966A patent/CN101390487B/en not_active Expired - Fee Related
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| CN101390487A (en) | 2009-03-25 |
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