Новая система орошения

Новая система орошения требует упорядочения дела водозабора в каждое хозяйство. В настоящее время некоторые колхозы имеют большое количество точек водозабора, что не позволяет учитывать подаваемую воду. Вследствие этого колхозы, расположенные в верхней части главного канала, забирают обычно лишнее количество воды и расточительно расходуют ее. Колхозы, расположенные в конце канала, не получают нужного им количества воды, и их посевы иногда страдают от недостатка влаги или запоздалого полива. Каждый колхоз должен иметь обычно не более 1—3 точек водозабора, оборудованных стандартными водовыпусками и приспособлениями для замера расходов воды.

Временная оросительная сеть каналов и укрупненные поливные участки предъявляют повышенные требования к состоянию поверхности орошаемого поля. Обычно орошаемая территория имеет множество

местных углублений, бугров, старых каналов и других неровностей. Для обеспечения нормального полива многие неровности требуется выровнять. В зависимости от сложности рельефа и микрорельефа объемы планировочных работ колеблются от 100 до 1 000 и более кубических метров на гектар. Всего на орошаемых землях Советского Союза требуется выполнить около одного миллиарда кубических метров планировочных работ. Такую работу можно выполнить в течение нескольких лет, широко применяя механизмы и машины. Этим будут заниматься машинно-тракторные, лесозащитные и машинно-мелиоративные станции, богато оснащенные скреперами, грейдерами, бульдозерами, плужными канавокопателями, экскаваторами и т. д.




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