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开垦荒坡地的目的是为了增产粮、棉,争取农业大丰收。但是,开荒的办法不合理,就会造成严股的水土流失,不但达不到增产目的,而且会给下游带来无穷的灾难。因而开荒应在不影响水土保持的原则下进行,应在坡度30°以下,土层厚1公尺以上,土质较肥适于农作物生长以及不会引起山坡滑坍的地区,由农业社结合水土保持措施订出垦荒计划,通过一定批准手续,然后按计划开垦,作为永久耕地,进行精耕细作。那么,怎样做好开荒地的水土保持呢?一般有如下几种方法,各地可因地制宜地适当采用:
The purpose of reclamation of wasteland is to increase grain yield and cotton and strive for a bumper harvest in agriculture. However, irrational measures to open up wasteland will result in soil and water loss in the stock market, which will not only fail to achieve the goal of increasing production but will also bring untold catastrophes to the downstream areas. Therefore, land reclamation should be carried out under the principle of not affecting the soil and water conservation. The slope should be below 30 ° and the soil layer should be over 1 meter thick. Soil is more suitable for crop growth and will not cause slump on the slopes. Keep measures to set a reclamation plan, through certain approval procedures, and then reclamation plan, as a permanent land, intensive cultivation. So, how to do a good job of land and water conservation? There are several ways in general, can be appropriate to adapt to local conditions: