CN105940925A - A method for rapidly increasing the organic carbon storage of saline and alkaline land - Google Patents

A method for rapidly increasing the organic carbon storage of saline and alkaline land Download PDF

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Publication number
CN105940925A
CN105940925A CN201610358348.7A CN201610358348A CN105940925A CN 105940925 A CN105940925 A CN 105940925A CN 201610358348 A CN201610358348 A CN 201610358348A CN 105940925 A CN105940925 A CN 105940925A
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China
Prior art keywords
saline
alkaline land
salt
organic carbon
soil
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CN201610358348.7A
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Chinese (zh)
Inventor
马全林
李银科
孙涛
王耀琳
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Gansu Desert Control Research Institute
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Gansu Desert Control Research Institute
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Priority to CN201610358348.7A priority Critical patent/CN105940925A/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C21/00—Methods of fertilising, sowing or planting
    • A01C21/005—Following a specific plan, e.g. pattern
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
    • A01G17/005—Cultivation methods
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G22/00—Cultivation of specific crops or plants not otherwise provided for
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/40—Afforestation or reforestation

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Botany (AREA)
  • Soil Sciences (AREA)
  • Cultivation Of Plants (AREA)
  • Fertilizers (AREA)

Abstract

The invention provides a method for rapidly increasing the organic carbon storage of saline and alkaline land. The method comprises the steps of (1) digging drainage ditches along the topographical direction of saline and alkaline land; (2) selecting lycium barbarum L. for forestation; (3) annually applying farm manure 750-1000kg/mu, diammonium phosphate 50-60kg/mu, calcium superphosphate 40-50kg/mu, urea 40-60kg/mu, and compound fertilizer 20-30kg/mu. The method greatly reduces the salinity content of saline and alkaline land, improves saline and alkaline land, increases the organic carbon storage of saline and alkaline land and brings remarkable economic benefit. Compared with original saline and alkaline land, improved saline and alkaline land has the advantages that the total salinity content of four-year-old and seven-year-old lycium barbarum L. forest land soil is reduced remarkably, the organic carbon storage (including dry branches and fallen leaves) of vegetation has a 68.7-times increase and a 163-times increase, the organic carbon storage of soil is increased by 36.4% and 37.3%, and the total organic carbon storage of a vegetation-soil system is increased by 41.39% and 49.13%.

Description

A kind of method of quick raising salt-soda soil carbon reserves
Technical field
The invention belongs to desertification control technical field, the method being specifically related to a kind of quick raising salt-soda soil carbon reserves.
Background technology
Global Climate Changes is one of the most great environmental problem of facing of the current whole world, it is not only directly connected to economic development and the energy security of various countries, and by the survival and development of whole for the profound influence mankind, become the significant challenge of current international community facing.The main cause of Global climate change is greenhouse gases CO2Concentration sharply increase (Atmospheric CO2Concentration is increased to the 369ppm of 2000 and the nearly 400ppm of 2015 by the 279ppm of 1750), but root or the mankind's activity change to terrestrial ecosystems Yu Fossil fuel carbon storehouse.For mitigation of global climate change, the United Nations successively puts into effect United Nations Framework Convention on Climate Change and Kyoto Protocol, control the discharge of carbon dioxide isothermal chamber gas with constraint contracting party comprehensively, bring adverse effect to human economy and society tackling global warming." plant trees " as a kind of artificial land use change survey and land management activity, Terrestrial Carbon reserves can be increased, be well recognized as increasing the important measures that carbon converges.China always payes attention to the afforestation under the conditions of Difficult site, has established the Plantation Ecosystem that whole world area is maximum, is made that important contribution for reply Global climate change and country's carbon emission negotiation.
The salinization of soil is a global problem, nearly 1,000,000,000 hectares of salt-soda soil, whole world area.According to China's second time soil survey information salt-soda soil resource area about 5.27 hundred million mu, wherein Saline 0.88 hundred million mu, it is mainly distributed on these arid and semi-arid lands of North China, northwest and northeast.In recent ten years, western China ecological environment severe exacerbation, secondary salinization of land area increases further.Under the background of Global climate change and China's arable land wretched insufficiency, develop salt-soda soil resource, on the one hand can improve soil, improve soil carbon sequestration ability, can bring more land under cultivation simultaneously, lay in cultivated land resource.But, owing to alkaline land soil habitat is severe, general crops and economic plants are difficult to grow, and therefore selecting salt tolerant economic plants and research and development cultivation technique is alkaline land improving and the key point increasing organic C storage.
Summary of the invention
In order to solve problems of the prior art, the method that the invention provides a kind of quick raising salt-soda soil carbon reserves.
The present invention provides the method for a kind of quick raising salt-soda soil carbon reserves, and step is as follows:
(1) along salt-soda soil terrain trend, excavation gutter carries out Drainage of salt；
(2) select Fructus Lycii (Lycium barbarumL.) afforest；
(3) farm manure 750-1000kg/ mu, Diammonium phosphate (DAP) 50-60 kg/mu, calcium superphosphate 40-50kg/ mu, carbamide 40-60kg/ mu, compound fertilizer's (N, P, K respectively account for 17%) 20-30kg/ mu are executed year.
As preferably, in step (1), the specification in gutter is: every the gutter that 200-400m spacing excavation 1.0-1.5 m is deep.
As preferably, in step (2), the strain spacing of Fructus Lycii is 1.0m × 2m, the density of plantation 5000 strains/hm2。
As preferably, also include after step (3) the step pruning branch chopping and returning on the spot.
The method using the present invention can greatly reduce the salt content in salt-soda soil, improves salt-soda soil, improves the carbon reserves in salt-soda soil, achieve obvious economic benefit simultaneously.Compared with primary salinization of land, life in 4 years, 7 years raw Fructus Lycii timbered soil total salt quantity are dropped to 7.36% and 11.92% by 42.76%；Vegetation carbon reserves (including dry branches and fallen leaves) is by 0.06 t/hm2Bring up to 4.18 t/hm2With 9.84 t/hm2, add 68.7 times and 163 times；Soil Carbon Stock is by 82.98 t/hm2Bring up to 113.17 t/hm2With 113.94 t/hm2, add 36.4% and 37.3%；Vegetation-soil system total organic carbon reserves are by 83.00 t/hm2Bring up to 117.36 t/hm2With 123.78 t/hm2, add 41.39% and 49.13%.
Detailed description of the invention
Below example facilitates a better understanding of the present invention, but does not limit the present invention.Experimental technique in following embodiment, if no special instructions, is conventional method.Test material used in following embodiment, if no special instructions, is commercially available.
Concretely comprising the following steps of the method for a kind of quick raising salt-soda soil carbon reserves of the present invention:
1) along salt-soda soil terrain trend, the gutter deep every 200-400m spacing excavation 1.0-1.5 m carries out Drainage of salt, lowering of watertable and soil salt content；
2) select salt tolerant economic plants Fructus Lycii (Lycium barbarumL.) afforesting, afforestation strain spacing is 1.0m × 2m, the density of plantation 5000 strains/hm2；
3) for ensureing Fructus Lycii high yield and the saline and alkaline improvement in soil and carburetting to greatest extent, farm manure 750-1000kg/ mu, Diammonium phosphate (DAP) 50-60kg/ mu, calcium superphosphate 40-50kg/ mu, carbamide 40-60kg/ mu, compound fertilizer's (N, P, K respectively account for 17%) 20-30kg/ mu are executed year；
4) for reducing nutrient output and the carbon emission that Pruning Away Branches causes, to pruning branch chopping and returning on the spot, carbon output 1164.9kg/hm can be reduced2/ year, nitrogen output 9.7kg/hm2/ year, mineral element output 68.6kg/hm2/ year.
Embodiment 1
Concretely comprising the following steps of the method for a kind of quick raising salt-soda soil carbon reserves of the present invention:
1) along salt-soda soil terrain trend, excavate gutter deep for 1.2 m every 300m spacing and carry out Drainage of salt, lowering of watertable and soil salt content；
2) select salt tolerant economic plants Fructus Lycii (Lycium barbarumL.) afforesting, afforestation strain spacing is 1.0m × 2m, the density of plantation 5000 strains/hm2；
3) for ensureing Fructus Lycii high yield and the saline and alkaline improvement in soil and carburetting to greatest extent, farm manure 900kg/ mu, Diammonium phosphate (DAP) 55kg/ mu, calcium superphosphate 45kg/ mu, carbamide 50kg/ mu, compound fertilizer's (N, P, K respectively account for 17%) 25kg/ mu are executed year；
4) for reducing nutrient output and the carbon emission that Pruning Away Branches causes, to pruning branch chopping and returning on the spot, carbon output 1164.9kg/hm can be reduced2/ year, nitrogen output 9.7kg/hm2/ year, mineral element output 68.6kg/hm2/ year.
After building artificial Fructus Lycii woods, compared with primary salinization of land, the change of indices is as shown in table 1.
The change of indices after artificial Fructus Lycii woods built by table 1
As shown in Table 1, the method using the present invention, greatly reduce the salt content in salt-soda soil, improve salt-soda soil, improve the carbon reserves in salt-soda soil, achieve obvious economic benefit simultaneously.Compared with primary salinization of land, life in 4 years, 7 years raw Fructus Lycii timbered soil total salt quantity are dropped to 7.36% and 11.92% by 42.76%；Vegetation carbon reserves (including dry branches and fallen leaves) is by 0.06 t/hm2Bring up to 4.18 t/hm2With 9.84 t/hm2, add 68.7 times and 163 times；Soil Carbon Stock is by 82.98 t/hm2Bring up to 113.17 t/hm2With 113.94 t/hm2, add 36.4% and 37.3%；Vegetation-soil system total organic carbon reserves are by 83.00 t/hm2Bring up to 117.36 t/hm2With 123.78 t/hm2, add 41.39% and 49.13%.
Embodiment 2
Concretely comprising the following steps of the method for a kind of quick raising salt-soda soil carbon reserves of the present invention:
1) along salt-soda soil terrain trend, excavate gutter deep for 1.5 m every 400m spacing and carry out Drainage of salt, lowering of watertable and soil salt content；
2) select salt tolerant economic plants Fructus Lycii (Lycium barbarumL.) afforesting, afforestation strain spacing is 1.0m × 2m, the density of plantation 5000 strains/hm2；
3) for ensureing Fructus Lycii high yield and the saline and alkaline improvement in soil and carburetting to greatest extent, farm manure 1000kg/ mu, Diammonium phosphate (DAP) 50kg/ mu, calcium superphosphate 40kg/ mu, carbamide 40kg/ mu, compound fertilizer's (N, P, K respectively account for 17%) 20kg/ mu are executed year；
4) for reducing nutrient output and the carbon emission that Pruning Away Branches causes, to pruning branch chopping and returning on the spot, carbon output 1164.9kg/hm can be reduced2/ year, nitrogen output 9.7kg/hm2/ year, mineral element output 68.6kg/hm2/ year.
Embodiment 3
Concretely comprising the following steps of the method for a kind of quick raising salt-soda soil carbon reserves of the present invention:
1) along salt-soda soil terrain trend, the gutter deep every 200m spacing excavation 1.0m carries out Drainage of salt, lowering of watertable and soil salt content；
2) select salt tolerant economic plants Fructus Lycii (Lycium barbarumL.) afforesting, afforestation strain spacing is 1.0m × 2m, the density of plantation 5000 strains/hm2；
3) for ensureing Fructus Lycii high yield and the saline and alkaline improvement in soil and carburetting to greatest extent, farm manure 750kg/ mu, Diammonium phosphate (DAP) 60kg/ mu, calcium superphosphate 50kg/ mu, carbamide 60kg/ mu, compound fertilizer's (N, P, K respectively account for 17%) 30kg/ mu are executed year；
4) for reducing nutrient output and the carbon emission that Pruning Away Branches causes, to pruning branch chopping and returning on the spot, carbon output 1164.9kg/hm can be reduced2/ year, nitrogen output 9.7kg/hm2/ year, mineral element output 68.6kg/hm2/ year.
Embodiment 4
Concretely comprising the following steps of the method for a kind of quick raising salt-soda soil carbon reserves of the present invention:
1) along salt-soda soil terrain trend, the gutter deep every 250m spacing excavation 1.1m carries out Drainage of salt, lowering of watertable and soil salt content；
2) select salt tolerant economic plants Fructus Lycii (Lycium barbarumL.) afforesting, afforestation strain spacing is 1.0m × 2m, the density of plantation 5000 strains/hm2；
3) for ensureing Fructus Lycii high yield and the saline and alkaline improvement in soil and carburetting to greatest extent, farm manure 850kg/ mu, Diammonium phosphate (DAP) 53kg/ mu, calcium superphosphate 48kg/ mu, carbamide 55kg/ mu, compound fertilizer's (N, P, K respectively account for 17%) 26kg/ mu are executed year；
4) for reducing nutrient output and the carbon emission that Pruning Away Branches causes, to pruning branch chopping and returning on the spot, carbon output 1164.9kg/hm can be reduced2/ year, nitrogen output 9.7kg/hm2/ year, mineral element output 68.6kg/hm2/ year.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, it is not limited to the present invention, although the present invention being described in detail with reference to previous embodiment, for a person skilled in the art, technical scheme described in foregoing embodiments still can be modified by it, or wherein portion of techniques feature is carried out equivalent.All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.

Claims (4)

1. the method for a quick raising salt-soda soil carbon reserves, it is characterised in that: step is as follows:
(1) along salt-soda soil terrain trend, excavation gutter carries out Drainage of salt；
(2) select Fructus Lycii (Lycium barbarumL.) afforest；
(3) farm manure 750-1000kg/ mu, Diammonium phosphate (DAP) 50-60kg/ mu, calcium superphosphate 40-50kg/ mu, carbamide 40-60kg/ mu, compound fertilizer's (N, P, K respectively account for 17%) 20-30kg/ mu are executed year.
Method the most according to claim 1, it is characterised in that: in step (1), the specification in gutter is: every the gutter that 200-400m spacing excavation 1.0-1.5 m is deep.
Method the most according to claim 1, it is characterised in that: in step (2), the strain spacing of Fructus Lycii is 1.0m × 2m, the density of plantation 5000 strains/hm2。
Method the most according to claim 1 and 2, it is characterised in that: also include after step (3) the step pruning branch chopping and returning on the spot.
CN201610358348.7A 2016-05-26 2016-05-26 A method for rapidly increasing the organic carbon storage of saline and alkaline land Pending CN105940925A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104303747A (en) * 2014-09-28 2015-01-28 王慧 Method for cultivating lycium ruthenicum in saline and alkaline land
CN105165357A (en) * 2015-09-28 2015-12-23 曾小虎 Planting method for high-altitude saline-alkali soil black medlar tree
CN105340554A (en) * 2015-12-02 2016-02-24 广西佳联达生态农业发展有限责任公司 Planting method of Chinese wolfberries

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104303747A (en) * 2014-09-28 2015-01-28 王慧 Method for cultivating lycium ruthenicum in saline and alkaline land
CN105165357A (en) * 2015-09-28 2015-12-23 曾小虎 Planting method for high-altitude saline-alkali soil black medlar tree
CN105340554A (en) * 2015-12-02 2016-02-24 广西佳联达生态农业发展有限责任公司 Planting method of Chinese wolfberries

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李银科等: "种植枸杞对次生盐渍化土壤活性有机碳和碳库管理指数的影响", 《干旱区研究》 *

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