Soil conservation is the application on the land of all necessary measures in proper combinations to build up and maintain soil productivity for efficient, abundant agricultural production on a sustained basis.
Soil conservation, therefore, means proper land uses, protecting the land against all the forms of soil deterioration. It is rebuilding eroded and depleted soils, conserving moisture for plant use. It includes proper agricultural drainage and irrigation where needed and other measures which contribute to maximum practical yields and conserve the soils for future uses all at the same time.
With proper management, most soil resources can be used and still retain their productive capacity over long periods of time. The problem of conserving these resources is thus one of accepting practices that permit their effective use while at the same time safeguarding their productive capacity over time. Soil conservation is a matter of good land use and management.
The State Land Use Planning provides a system of using and managing land based on the capabilities of the land itself, involving the application of the best measures or practices known, and designed to result in the greatest production without damage to the land. The State Land Use Control of Land Uses has to secure the wise uses of soil resources. The land users must show care in selecting their production practices so as to secure the practicable return. They also must show comparable care in choosing and timing the conservation investments and practices which are used to build up and maintain the productivity of soils.
The State Land Use Control provides the control of all the land uses. The land users should accept practices that do not damage the soils and permit their effective use. To build up and maintain the productivity of the soils is their prime concern.
A special problem arises with soil erosion. Rapid soil destruction means irreparable loss of land at least as far as cropping is concerned. Soil conservation is directed against the destructive effects of wind and water. The land use planners should keep the soils in such shape that they would remain productive as long as possible.
III. :
Text B. Soil Erosion
Soil erosion effects food production through land degradation. The damage of wind and water erosion is estimated by millions of dollars. Dust storms may occur in some southern land areas, recurrent drought also often results in soil erosion. The wind erosion of soils takes place in some drier sections of our country.
In wet areas the degradation of soils is linked with accelerated run-off and increased silt load of the rivers, worsened flood hazard along their lower courses and accumulation of coarse material (sand, gravel) on top of valuable soils.
The proper use of soil resources calls for measures to keep the soils from being destroyed by wind and water. The development of techniques for extending the productive life of soils and for slowing down their rate of deterioration will bring the maximum use of these soils. Much may be done by land use planners.
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The land resources of a farm may be actually reshaped in one way or another for better farming and leveled for more efficient irrigation, terraced to hold rainfall and strip cropped to save soil and water.
Poor or workout cropland can be converted to pasture or pasture to cropland. Many hectares of good rangeland must be wrested from worthless scrub and brush, reseeded, properly grazed, well watered.
The drains improve pasture and cropland. Ponds and marshes may be developed for wild life. A farm detention dam may be built and can catch and release safely what would otherwise be run-off of flood proportions.
The planners can project tree shelterbelts and strip cropping for wind and water erosion control. These may be created singly and in combinations. Modern techniques of land management must be put into operation for the sake of land conservation and increase the opportunities of the farms.
Changes in farming, developments in machinery, rising requirements of capital investment, the wide use of fertilizers and soil conservation practices call for many skills and technically sound practices of specialists of land use planning.
IV. :
soil conservation plan; eroded soil; agricultural drainage and irrigation; the problem of conserving land resources; effective use; wind and water soil erosion; efficient irrigation; water erosion control; modern techniques of land management
V. . 4 :
omitting all the details
considering the situation
all things considered
generally speaking
granting it to be true
assuming that ,
allowing for
not counting
speaking of (for)
judging by
beginning with
VI. , :
1. Food production is influenced by.... 2. Some southern land areas are the places where.... 3. Wind erosion takes place....4. In wet areas the degradation of soils is linked with.... 5. Ponds and marshes for wild life may be....
VII. :
conservation investments; soil destruction; soil conservation programme; coarse material; shelterbelt; strip cropping; soil survey data; overgrazing;
VIII. . , . 3-4 :
to apply, to maintain, to build, to mean, to conserve, to retain, to accept, to provide, to manage, to design, to damage, to select, to return, to time, to direct, to occur, to keep, to develop, to implement, to involve, to help, to increase
IX. . :
1. Soil conservation also includes... agricultural drainage and.... 2. With proper... most soil resources retain their productive capacity over long periods of time. 3. Rapid soil destruction means... loss of land. 4. The damage of wind and... erosion is estimated by millions of dollars. 5. There are some measures to keep the soils from.... 6. Poor or workout cropland can be converted to.... 7. Tree shelterbelts and strip cropping are created for wind and water... control. 8. Erosion control and moisture consideration practices fit into a well-rounded... programme.
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1. , , . 2. , , . 3. , .
XI. , . :
Soil conservation means proper land usesprotectingthe land against all the forms ofsoil deterioration. 2.Protection ofsoils from water and wind erosion is one of the main purposes of asoil conservation programme. 3.To protect soils from erosions means to solve the main problem ofsoil conservation.
