rêbaza avdanê te bi "kuştin" ya axa

Ji bo piranîya xelkê, salinization axa hem nas û birçitiyê e. Nas bi jî, gelek waran de wek herêmên deryayê, Çîn û herêmên di hundirê hene herêmên mezin ên welatê Saline-alkali ku li her derê tê dîtin. Pêkhatina van axa Saline-alkali ji bo keş û herêmî, axa, topography, geomorphology, geology û faktorên din related. Alkalinization. Unfamiliar e ku salinization axa yên çandiniyê ji ber tedbîrên bêmane mirovan Tê fêmkirin ne.
Unreasonable human measures are mainly due to the unreasonable irrigation and drainage system, excessive irrigation, poor drainage, causing the groundwater level to rise, resulting in soil salinization, which is called soil secondary salinization. Saline-alkali land is increasing every year, because of the “contribution” of human beings. There are more and more secondary salinization sites, and about 10 million hectares of land are discarded each year due to secondary salinization of the soil.
According to research, the two rivers of one of the world’s four major civilizations, the main cause of extinction is the secondary salinization of soil.

Çawa lead avdanê bêmane tê, ku salinization axa?
Salinization erdê, di warê hêsan e ku xwê, komî ser erd yên di erdê qat bi xweşbînî ji plant û mezinbûna normal ên nebatî yên bandorê.

Flood irrigation

 Gelo ev seretayî an navîn e, herî zêde ji xwê, komî ser erd yên ku axa ji erdê û bin erdê rabe ji surface nêzîkî surface destê action Kapî Rus, xwê ji surface of the axa.
The key to this is “groundwater rise.” If the amount of irrigation is too large, the water will penetrate down a lot, the drainage will be poor, the groundwater level of the cultivated land will rise, the groundwater will get closer and closer to the ground, and the salt carried in the water will easily reach the surface.
In this process, it is necessary to introduce a strong assist in the accumulation of salt on the surface – strong evaporation.
When groundwater brings soil salinity to the surface, strong evaporation will quickly turn the water into water vapor, unable to continue to carry salt, and the salt will stay on the soil surface. After a period of ascending-accumulating cycles, the surface of the soil accumulates salt, and for a long time, the soil will be salinized.
The secondary salinization of soil mainly occurs in the arid and semi-arid areas with strong evaporation, and the evaporation is greater than the rainfall. It is distinguished from the native salinization of the soil, mainly as a result of human economic activity.

Secondary salinization of soil

 rêbaza dermankirina salinization axa

Tedawî salinization axa her tim pirsgirêkek mezin re rû bi rû zanyar axa bû. Gelo ev salinization seretayî an salinization navîn e, tedbîrên ku dişibin hev. Rêbaza bingehîn ya rêveberiyê e ku jêke ji erdê radibin-xwê up-evaporation pêvajoya kombûna.
Improve agricultural drainage system
, ku bêhtir ji bo avdaniyê, kanalîzasyoneke, siltation, antî-قاچ û din management key. Avê teze (baran an avdanê tofanê de) tê bikaranîn ji bo şuştinê ku ax, û kanalîzasyoneke ya discharges rewa pênasîna axa ku ji axa di wextê de. Avê Fresh dikarin şuştin di erdê bigire û xwê more. Ya duyemîn jî, asta bin erdê de dikare ji bo kûrahiya ewle bin kontrola, herweke evaporation ax û kêmkirina tevgera xwê rakin.
Film axa
Through bagerê de axa, ew dikarin li erd yên ku axa ji hatina nav têkilî bi atmosfera pêşî, kêm evaporation û kêm rabe binaxê.
Metodê axa
Yekser axa surface Saline-alkali ji bo axa-high quality guhertin. Çandin, berhemên xwê-tolerant a dermankirinê hevpar e jî.
For secondary salinization, the most important thing is to improve the irrigation and drainage facilities to prevent excessive irrigation during irrigation; after irrigation, the excess water can be discharged in time. The agricultural drainage system is currently the most widely used and effective solution. It fundamentally cuts off the cyclical process of groundwater rise-salt up-evaporation and salt accumulation. The rest of the methods are improvements under existing conditions.