CN102132667A - Water-saving irrigation method for establishment of oleaster shelter forest in arid area - Google Patents
Water-saving irrigation method for establishment of oleaster shelter forest in arid area Download PDFInfo
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- CN102132667A CN102132667A CN2010105439765A CN201010543976A CN102132667A CN 102132667 A CN102132667 A CN 102132667A CN 2010105439765 A CN2010105439765 A CN 2010105439765A CN 201010543976 A CN201010543976 A CN 201010543976A CN 102132667 A CN102132667 A CN 102132667A
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- 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
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- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
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Abstract
The invention relates to a water-saving irrigation method for the establishment of an oleaster shelter forest in an arid area, which is a result of many experiments according to the growth characteristics of root systems of oleasters in combination with the actual condition that southern Xinjiang is dry, has little rain, and is heavily salinized popularly. The method mainly achieves the purposes of saving water, suppressing salt, and improving the phytomass of wild plants in a forest land in the planting of the oleaster shelter forest through the trail of reducing the flow of water droppers, and prolonging the irrigation time performed as the age limit of the drop irrigation forest increases. When the method is adopted, on one hand, water is saved; on the other hand, the water quantity is moderately reduced so as to promote the forest to root in the underground water direction in the third year, and the method makes preparations for little irrigation and free irrigation in the later few years.
Description
Technical field
The invention belongs to the water-saving irrigation technique in the shelterbelt construction, is a kind of at arid biogeographic zone 1-3 arrow-leaved oleaster shelterbelt construction water-saving irrigation method, is the forestry water saving measures of the extensive shelterbelt construction of district oasis.
Background technology
Arid biogeographic zone is a main climatic characteristics with precipitation rareness, evaporation strongly, and water resource is the main factor of restriction vegetation growth.The oasis shelter forest is ensureing that the oasis microclimate is stable, and it is remarkable to reduce natural calamity aspect effect.Large tracts of land shelterbelt construction aspect, oasis faces several big restraining factors: the first, and the maximum restraining factors of arid biogeographic zone vegetation growth are water, the shortage of water resource is seriously restricting the large-scale shelterbelt construction of arid biogeographic zone; The second, arid biogeographic zone special climate condition causes salinity to accumulate in the face of land with the rising of moisture violent evaporation, causes newborn woods lethality height; The 3rd, oasis shelterbelt construction water consumption is big.In recent years, strive the problem that water, forest land salinity are assembled at economic crops and shelter forest, realize shelter forest water saving, press salt, the irrigation technique that is matched in the establishing in large scale shelter forest becomes many groups field, South Sinkiang and the urgent demand in small towns.Therefore, the irrigation program of the design and the science of popularization is to improve the efficient important channel that utilizes and reduce salt damage of oasis shelter forest water resource.
But, there are certain technological difficulties in the large-scale shelterbelt construction of arid biogeographic zone at present, mainly show: (1) oasis shelter forest can effectively alleviate the economic loss that natural calamity is brought oasis farming, but its water consumption is big, and can irrigation program how to implement science be its prerequisite that promote on a large scale at arid biogeographic zone of decision with the purpose that realizes water saving; (2) the water requirement difference of the shelter forest of the different time limits (as arrow-leaved oleaster), the Root Distribution degree of depth also there are differences, and irrigation volume should change along with the plantation time limit.Therefore, irrigation technique on this basis needs to take different irrigation practices could realize the purpose of scientific application of irrigation and water saving according to the characteristics of tree growth; (3) the ubiquitous soil salinization problem in arid area also produces material impact to the performance of shelter forest growing way and benefit.Cause irrigation practice in the not solution of a lot of technical problems in changing along with the growth of the shelter forest time limit, the problem that pin of the present invention exists provides a kind of at arid biogeographic zone 1-3 arrow-leaved oleaster shelterbelt construction water-saving irrigation method.
Summary of the invention
The object of the invention is, characteristics according to the arrow-leaved oleaster root growth, in conjunction with the heavier actual conditions of area, South Sinkiang, the Xinjiang short of rain and general salination of arid, by a large amount of experiments, a kind of arid biogeographic zone arrow-leaved oleaster shelterbelt construction water-saving irrigation method is provided, and this method mainly is at attempting by reducing the water dropper flow, prolonging the purpose that irrigation time reaches arid biogeographic zone arrow-leaved oleaster shelter forest plantation water saving, pressure salt, improves wild phytomass in the forest land of carrying out along with rising of the drip irrigation forest time limit.The method of the invention is on the one hand in order to economize on water, and on the other hand, appropriateness reduces the water yield and to promote forest to take root to the underground latent water direction in the 3rd year is, for several young fillings in back, exempt to irritate and prepare.
Arid biogeographic zone arrow-leaved oleaster shelterbelt construction water-saving irrigation method of the present invention, this method are irrigated 1-3 arrow-leaved oleaster shelter forest and are all taked the drip irrigation mode, follow these steps to carry out:
A, drip irrigation facility are laid: the corresponding one tree of each water dropper of irrigate band, by water pump control hydraulic pressure;
B, 1 year irrigate: with 1 year arrow-leaved oleaster shelter forest of arid biogeographic zone plantation be provided with irrigation quantity be 20 liters/strain/time, 6 liters/hour of water dropper flows, the drip irrigation time is 3.3 hours/time, the watering period is 13 days, a year irrigation frequency is 14 times, total irrigation volume is 0.28 side/year strain;
C, 1 year irrigate: the arrow-leaved oleaster shelter forest that will plant 2 years be provided with irrigation quantity be 30 liters/strain/time, 3.6 liters/hour of water dropper flows, the drip irrigation time is 7.1 hours/time, the watering period is 15 days, a year irrigation frequency is 12 times, always irrigation volume is 0.36 side/year strain;
D, the 3rd year irrigate: the arrow-leaved oleaster shelter forest that will plant 3 years be provided with irrigation quantity be 40 liters/strain/time, 2.4 liters/hour of water dropper flows, the drip irrigation time is 16.7 hours/time, the watering period is 18 days, a year irrigation frequency is 10 times, always irrigation volume is 0.4 side/year strain.
Embodiment
The method of the invention has been carried out the water-saving irrigation of arid biogeographic zone 1-3 arrow-leaved oleaster shelterbelt construction Xinjiang 35 of two teachers of farming:
The position, forest land is selected: carry out planting of newly-ploughed oasis (2007 opened up wasteland herein cotton field) shelter forest spring in 2008 in Edge of Oasis, plant arrow-leaved oleaster and diversiform-leaved poplar, 1.5 meters * 3 meters of seeding row spacings, the forest land is wide 30 meters, long 1500 meters, 45000 square metres of areas are wherein chosen two ground and are carried out irrigation conditions and artificially control;
A, drip irrigation facility are laid: the corresponding narrow-leaved oleaster of each water dropper of irrigate band, by water pump control hydraulic pressure;
B, 1 year irrigate: with 1 year arrow-leaved oleaster shelter forest of arid biogeographic zone plantation be provided with irrigation quantity be 20 liters/strain/time, 6 liters/hour of water dropper flows, the drip irrigation time is 3.3 hours/time, the watering period is 13 days, a year irrigation frequency is 14 times, total irrigation volume is 0.28 side/year strain;
C, 1 year irrigate: the arrow-leaved oleaster shelter forest that will plant 2 years be provided with irrigation quantity be 30 liters/strain/time, 3.6 liters/hour of water dropper flows, the drip irrigation time is 7.1 hours/time, the watering period is 15 days, a year irrigation frequency is 12 times, always irrigation volume is 0.36 side/year strain;
D, the 3rd year irrigate: the arrow-leaved oleaster shelter forest that will plant 3 years be provided with irrigation quantity be 40 liters/strain/time, 2.4 liters/hour of water dropper flows, the drip irrigation time is 16.7 hours/time, the watering period is 18 days, a year irrigation frequency is 10 times, always irrigation volume is 0.4 side/year strain.
Carried out the water-saving irrigation of arid biogeographic zone 1-3 arrow-leaved oleaster shelterbelt construction by the method for the invention Xinjiang 35 of two teachers of farming, its result that compares with conventional method is for seeing Table:
If 0.3 yuan of per 1 side's water cost calculates by arrow-leaved oleaster 150 strains of planting of every mu of forest land:
As can be seen from the table: the method for the invention with compare with the conventional method of former drip irrigation, former broad irrigation respectively, calculated by 3 years, survival rate has improved 10.58%, 14.31% respectively; 1 mu of ground was saved the water yield 51 sides, 1194 sides respectively in 1 year; 1 mu of ground was saved 15.3 yuan of costs, 358.2 yuan respectively in 1 year.By plantation protection 50,000 mu of calculating in forest land, but difference conserve water 2,550,000 sides, and 5,970 ten thousand sides save 760,000 yuan of costs, 1,791 ten thousand yuan.
Claims (1)
1. arid biogeographic zone arrow-leaved oleaster shelterbelt construction water-saving irrigation method is characterized in that following these steps to carrying out:
A, drip irrigation facility are laid: the corresponding one tree of each water dropper of irrigate band, by water pump control hydraulic pressure;
B, 1 year irrigate: with 1 year arrow-leaved oleaster shelter forest of arid biogeographic zone plantation be provided with irrigation quantity be 20 liters/strain/time, 6 liters/hour of water dropper flows, the drip irrigation time is 3.3 hours/time, the watering period is 13 days, a year irrigation frequency is 14 times, total irrigation volume is 0.28 side/year strain;
C, 1 year irrigate: the arrow-leaved oleaster shelter forest that will plant 2 years be provided with irrigation quantity be 30 liters/strain/time, 3.6 liters/hour of water dropper flows, the drip irrigation time is 7.1 hours/time, the watering period is 15 days, a year irrigation frequency is 12 times, always irrigation volume is 0.36 side/year strain;
D, the 3rd year irrigate: the arrow-leaved oleaster shelter forest that will plant 3 years be provided with irrigation quantity be 40 liters/strain/time, 2.4 liters/hour of water dropper flows, the drip irrigation time is 16.7 hours/time, the watering period is 18 days, a year irrigation frequency is 10 times, always irrigation volume is 0.4 side/year strain.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105439765A CN102132667A (en) | 2010-11-15 | 2010-11-15 | Water-saving irrigation method for establishment of oleaster shelter forest in arid area |
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| CN2010105439765A CN102132667A (en) | 2010-11-15 | 2010-11-15 | Water-saving irrigation method for establishment of oleaster shelter forest in arid area |
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| CN102132667A true CN102132667A (en) | 2011-07-27 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102487697A (en) * | 2011-12-13 | 2012-06-13 | 中国科学院新疆生态与地理研究所 | Mountainous-area protecting meadow building method of arid areas |
| CN105580620A (en) * | 2015-12-21 | 2016-05-18 | 中国科学院新疆生态与地理研究所 | Afforestation method for arid region secondary salinization land |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1475104A (en) * | 2003-06-30 | 2004-02-18 | 宁夏林业研究所（有限公司） | Desert protectire forest drip irrigation application technology |
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2010
- 2010-11-15 CN CN2010105439765A patent/CN102132667A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1475104A (en) * | 2003-06-30 | 2004-02-18 | 宁夏林业研究所（有限公司） | Desert protectire forest drip irrigation application technology |
Non-Patent Citations (2)
| Title |
|---|
| 《土壤通报》 20010630 徐新文等 塔中沙漠油田基地路生物防沙技术示范--沙地咸水滴灌制度试验研究 1 第32卷, 第S0期 2 * |
| 《林业科学研究》 20041231 时新宁等 沙地防护林滴灌技术研究 1 , 第S1期 2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102487697A (en) * | 2011-12-13 | 2012-06-13 | 中国科学院新疆生态与地理研究所 | Mountainous-area protecting meadow building method of arid areas |
| CN105580620A (en) * | 2015-12-21 | 2016-05-18 | 中国科学院新疆生态与地理研究所 | Afforestation method for arid region secondary salinization land |
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Application publication date: 20110727 |