CN102210230A - Reservoir gentle slope regression zone land limited cultivation utilization method - Google Patents
Reservoir gentle slope regression zone land limited cultivation utilization method Download PDFInfo
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- CN102210230A CN102210230A CN201110110895.0A CN201110110895A CN102210230A CN 102210230 A CN102210230 A CN 102210230A CN 201110110895 A CN201110110895 A CN 201110110895A CN 102210230 A CN102210230 A CN 102210230A
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Abstract
The invention discloses a reservoir gentle slope regression zone land limited cultivation utilization method, which comprises the following steps of: a, selecting a regression zone land with a gentle slope and a thick soil layer in a period of reservoir level drop and in crop-planting seasons; b, determining sowing points of crops at certain intervals according to the growth requirement of crops intended to be planted, performing land preparation and loosening the soil at each sowing point, and keeping an original state in other places; c, dibbling the crops at each point after land preparation so as to form coexistence between the crops and plants; and d, after the crops are maturely harvested, keeping the original vegetation in the land. By combining farming rules of farmers, the method is easy and convenient to operate and convenient to implement, the destructiveness of the conventional common ploughing mode on soil can be effectively reduced, and the potential original vegetation in the regression zone is preserved; therefore, soil erosion on a soil reservoir bank of the regression zone is reduced.
Description
Technical field
The invention belongs to reservoir drawdown band land ecology close friend and utilize technical field, be specifically related to the method that bank seasonal limited farming in soil property storehouse, falling zone, a kind of reservoir gentle slope utilizes.
Background technology
The falling zone is that reservoir is built the formed special outcome of operation, and it is 30m that China's Three Gorges Projects retaining operation will form range of stage, long 600 kilometers, and the reservoir drawdown band that area is 348.93 square kilometres.The Three Gorges Reservoir falling zone is type section, hard rock valley except that area to the east of the Fengjie, the riverbank is the Zhong Shan mountain region, bank slope is steep and based on stone matter storehouse bank, the falling zone is mainly original alluvial flat, river second bottom, part secondary terrace and low tableland, mound, basin etc. to the west of the Fengjie, the river valley spaciousness, bank slope is more slow, and the falling zone soil layer is thick, soil structure good, the soil is fertile, and bigger development and use potentiality are arranged.In addition, the falling zone becomes Lu Qichang (the 6-9 month), add rain same season of heat: the reservoir area high temperature and rainy phase (mid or late May is to by the end of September) becomes the land phase synchronous with the falling zone, for up to (time of the falling zone exposure water surface of height above sea level more than 160 meters more reaches 200 days) more than 120 days, can satisfy the needs of one season of pesticide meridian crop growth.Behind the Three Gorges Reservoir Cheng Ku, most of back is " move on the spot and go up a hill " by the immigrant, per capita cultivated land's less than of reservoir area periphery peasant is 0.7 mu at present, and be to plough in slope of poor quality, that soil layer is barren mostly, appropriateness development and use falling zone land resources, to alleviate people from reservoir area ground contradiction, increase reservoir area peasant employment and farmers' income, safeguard effective solution of reservoir area steady countryside, promotion reservoir area " rural economy, rural development and rural demography ", and therefore appropriate seasonality exploitation be carried out in the falling zone, reservoir area of Three Gorges and will become possibility.
But, Three Gorges Reservoir falling zone ecology fragility, the falling zone soil that main rendzinas of being grown by the purple soil and the limestone of the growth of purple sand shale is formed, water penetration is strong, a little less than the corrosion resistance, wave that the reservoir area shipping produces and waterflooding action of soaking make soil property storehouse, falling zone bank that wave erosion and gravitational erosions such as avalanche, landslide take place in the fluctuation in stage process easily; Corrode and strong rainfall runoff then easily takes place in the one-tenth land phase that surface cover deficiency, rainfall are concentrated.Therefore, the soil utilization of falling zone, reservoir area of Three Gorges must be that the ecological close friend who is based upon on the protection ecotope basis, falling zone utilizes pattern, fully coordinates the relation of farm land utilization and reservoir area ecological environmental protection.Falling zone land resources mainly is the spontaneous development and use of peasant at present, the soil that becomes the land phase to surface to the falling zone is opened up wasteland and is cultivated, but the traditional farming tillage control measure is also inapplicable in reservoir drawdown band soil agricultural use, to make the soil on top layer (sediment deposit) become loose, its soil erosion may aggravate, and next fluctuation in stage cycle also subjects to the naughty erosion effect of wave in rainy season (just in time being that the falling zone becomes the land phase); The land development in local location also influences the broken stability in bank, storehouse; The agricultural chemicals of Shi Yonging, chemical fertilizer run off with runoff and sediment and produce pollution of area source simultaneously, worsen the water quality of reservoir area, threaten the ecological safety of reservoir area.
The present invention proposes the limited agricultural use method of cultivating of soil property storehouse, falling zone, a kind of Three Gorges Reservoir gentle slope bank, is intended to increase the reservoir area agricultural production and does not destroy the existing ecological environment function in falling zone.
Summary of the invention
Deficiency at the land use pattern existence of existing Three Gorges Reservoir falling zone, the purpose of this invention is to provide the limited no-tillage method in soil, falling zone, a kind of reservoir gentle slope, be intended to reduce the people and be the disturbance of farming the face of land, falling zone, reduce the falling zone water and soil loss, realize the ecological friendly sustainable use of reservoir drawdown band.
The object of the present invention is achieved like this: the limited method of utilizing of cultivating in soil, falling zone, a kind of reservoir gentle slope may further comprise the steps:
A, the reservoir gentle slope seasonal limited prerequisite of cultivating utilization in soil that disappears must " disappear reservoir level fall the period " and combines with " farming season " of agricultural production, in between the reservoir level decrement phase and crop seeding select the falling zone soil of the gradient season less than 5 ° and thicker soil, according to the waterflooding asynchronism(-nization), the falling zone is divided into three zones, upper, middle and lower respectively, what suit respectively limitedly cultivates utilization, and subregion is selected suitable crops species.The falling zone upper area of height above sea level more than 165 m, annual exposure 3～mid-October can be selected pesticide meridian crop and weak point season vegetables such as capsicum, eggplant such as maize planting, sweet potato, soybean, peanut; Height above sea level is in the falling zone of 156～165m central region, and the soil exposure time is the first tenday period of a month in 5～October, can plant vegetables of short season such as pesticide meridian crop such as soybean, sesame, summer corn and cowpea, capsicum, radish; The falling zone lower area of height above sea level 145～156 m, only at 6～9 moonrise dew faces, and the short-term that is subject to flood in flood season in summer floods, and utilizes fraction low, do not carry out farming, reverts to herbage grasslands such as Hemarthria compressa, Bermuda grass naturally;
B, determine the sowing point position of crop according to a determining deviation, determine according to the growth demand of crops behind the width of each sowing point position to be loosened the soil in each sowing point position with putting in order that other places maintain the original state according to the growth demand of intending the plantation pesticide meridian crop;
Dibbling crops on c, each the some position after putting in order ground treat that the original herbosa that crops are unearthed between ensuing crop also grows, and forms crops, herbal coexistence;
D, the original vegetation root system in crops ripe results back still exist in the soil, and inhibitory action plays to the naughty erosion of wave and the action of soaking of water body in the landscape pattern of original ground surface, falling zone and vegetation when treating the water level rise.
The present invention is on the basis that takes into full account utilization of farm land, falling zone, reservoir area of Three Gorges and ecological environmental protection demand; proposition replaces the technology of traditional agricultural tillage measure with a kind of limited farming; to reduce the people is the disturbance of farming to reservoir drawdown band soil, reaches the purpose that high yield soil, falling zone made full use of and reduced the falling zone water and soil loss.
The invention has the beneficial effects as follows:
1, the limited zero tillage technology in soil, falling zone of the present invention's proposition makes full use of water, fertilizer, the production of land resources developing agricultural of falling zone in the very outstanding reservoir area of Three Gorges of contradiction, people ground, increases reservoir area agricultural output, and the peasant takes like a shot.
What 2, the present invention proposed replaces traditional pattern of turning over the limited zero tillage technology generation in soil, falling zone; reduced the range of disturbance of farming measure to the face of land, falling zone; preserved the potential original vegetation landscape that the falling zone has; its main benefit is effectively to have suppressed wave and water body to soak the wave erosion of falling zone and the influence of gravitational erosion in reservoir next round fluctuation in stage process; reduce the bank water and soil loss of soil property storehouse, falling zone, help realizing the sustainable use and the protection reservoir area water body quality in high yield soil, falling zone.
3, the technology that proposes of the present invention is in conjunction with peasant's farming farming rule, and is easy and simple to handle, possesses the condition of extensive enforcement.
Description of drawings
Fig. 1 is a schematic diagram of the present invention.
Embodiment
Further specify the specific embodiment of the present invention in conjunction with making up the limited technology of cultivating in soil, falling zone, gentle slope, reservoir area of Three Gorges: the Zhong County, Chongqing City is positioned at area, vital organs, middle reaches, reservoir area of Three Gorges, this segment length's rivers paddy is comparatively spacious, the two sides a chain of undulating hills, bank slope is more slow, cheuch is dense, grow on the terrace, and the falling zone land area is bigger, and the soil utilization before reservoir forms is mainly agricultural production conditions and ploughs preferably.Present embodiment is chosen the plot, soil property falling zone, main stream of the Yangtze at two groups of places, new policies village, domestic Shi Bao town, Zhong County, and the soil before the waterflooding is utilized as paddy field, thicker soil, and agricultural production conditions are better.This plot develops into the hillside fields gradually after the Three Gorges Reservoir retaining.The crops that this example is chosen plantation are corn.Corn is 3～August in the plantation time of locality, and rule is basic consistent season with the falling zone exposure during crop planting, can reach and rationally utilize falling zone land resources, satisfies the demand of agricultural production.
The limited technology of cultivating the corn of planting in soil, falling zone, gentle slope, this area may further comprise the steps:
A, Three Gorges Reservoir water level began to disappear at the beginning of 3 months, began whole ground after treating to disappear water level the soil, falling zone reaching certain draining degree, selected plantation point position to carrying out scarifying in the soil with the spacing of 30cm * 30cm, and the soil block hoe is thin, leveling, and remain stationary in non-plantation position.As shown in drawings, 1 for cultivating a position, and 2 is the noncrop area;
After growing seedlings in the greenhouse, b, corn be transplanted in the plot, falling zone, according to the some position plantation of determining in advance wholely;
Be scattered in the also sprout growth of plant species in the plot after c, summer, corn grew tall, because higher can preferentially the exposing to sunlight of plant height of corn finished photosynthesis, and the liquid manure resource of falling zone abundance satisfies the nutritional need of each plant species;
After d, the August corn maturation, corn is put away together with stalk, only remaining short protophyte in the plot, falling zone, and the agricultural residues body that agricultural use produces is all utilized, and can not exert an influence to the reservoir area water body;
Natural vegetation played sparing action to the face of land, falling zone simultaneously after e, autumn, the reservoir filling water level went up, and the agricultural use in soil, falling zone does not damage the ecological environment function of natural vegetation yet.
Claims (2)
1. the limited method of utilizing of cultivating in soil, falling zone, a reservoir gentle slope is characterized in that: may further comprise the steps:
A, between the reservoir level decrement phase and crop seeding select the gradient more slow season, the plot, falling zone of thicker soil;
B, determine the sowing point position of crop according to a determining deviation, determine according to the growth demand of crops to be loosened the soil in each sowing point position the original present situation of other place maintenances behind the width of each sowing point position with put in order according to the growth demand of intending the plantation crops;
Dibbling crops on c, each the some position after putting in order ground treat that the original vegetation that crops are unearthed between ensuing crop also grows, and forms the coexistence of crops, plant;
D, the original vegetation in crops ripe results back still exist in the plot and the vegetation coverage with considerable scale, treat that inhibitory action plays to the naughty erosion of wave and the action of soaking of water body in the landscape pattern of falling zone original ground surface+vegetation when water level goes up.
2. the limited method of utilizing of cultivating in soil, falling zone, a kind of reservoir gentle slope according to claim 1 is characterized in that: described b intends the plantation crops and is chosen for corn in the step, determine the sowing point position of corn according to the spacing of 30cm * 30cm.
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| CN201110110895.0A CN102210230A (en) | 2011-04-29 | 2011-04-29 | Reservoir gentle slope regression zone land limited cultivation utilization method |
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| CN201110110895.0A CN102210230A (en) | 2011-04-29 | 2011-04-29 | Reservoir gentle slope regression zone land limited cultivation utilization method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103380696A (en) * | 2013-07-29 | 2013-11-06 | 云南农业大学 | Corn intercropping grass belt planting method capable of reducing sloping field water and soil loss greatly |
| CN105638197A (en) * | 2015-12-30 | 2016-06-08 | 西南大学 | Hemarthria compressa and vegetation construction method of hemarthria compressa in ecological management |
| CN105993262A (en) * | 2016-05-24 | 2016-10-12 | 谢庭生 | Purple soil hilly area gentle slope honeycomb surface forest and grass composite planting high-efficiency utilization method |
| CN114508076A (en) * | 2022-02-24 | 2022-05-17 | 中水北方勘测设计研究有限责任公司 | Method for treating underwater side slope in dense vegetation area |
-
2011
- 2011-04-29 CN CN201110110895.0A patent/CN102210230A/en active Pending
Non-Patent Citations (4)
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| 《互动百科》 20060801 andyhao 免耕 第1-2页 1-2 , * |
| 《安徽农业科学》 20071231 孙海兵 三峡库区消落区农业利用初探 第11168-11169页 1-2 第35卷, 第34期 * |
| 《水利经济》 20110131 张元教等 南水北调工程丹江水库消落区保护与利用管理研究 第39-42页 1-2 第29卷, 第1期 * |
| 《重庆教育学院学报》 20051231 龙良碧等 三峡库区消落带土地开发利用探讨 第42-45页 1-2 第18卷, 第6期 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103380696A (en) * | 2013-07-29 | 2013-11-06 | 云南农业大学 | Corn intercropping grass belt planting method capable of reducing sloping field water and soil loss greatly |
| CN105638197A (en) * | 2015-12-30 | 2016-06-08 | 西南大学 | Hemarthria compressa and vegetation construction method of hemarthria compressa in ecological management |
| CN105993262A (en) * | 2016-05-24 | 2016-10-12 | 谢庭生 | Purple soil hilly area gentle slope honeycomb surface forest and grass composite planting high-efficiency utilization method |
| CN114508076A (en) * | 2022-02-24 | 2022-05-17 | 中水北方勘测设计研究有限责任公司 | Method for treating underwater side slope in dense vegetation area |
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Application publication date: 20111012 |