當前位置:首頁 > 新聞動態 > 大棚花卉苗木預防雪災的技術措施
大棚花卉苗木預防雪災的技術措施
[來源:原創] [作者:aoutmy] [日期:17-05-03] [瀏覽次數:]

及時趕雪,減輕凍害。大雪會壓傷花卉苗木,并加重凍害。要及時趕雪,防止花卉苗木發生機械損傷,減輕凍害。   連棟大棚要根據情況采取掃雪、鏟雪、撒鹽化雪、棚內加溫化雪等措施;如大雪過猛,以上措施不能奏效,大棚有倒塌危險,要放棄棚內花卉保溫,揭除棚內覆蓋物,利用土壤相對較高溫度增加棚內氣溫來化雪。   在沒有其他辦法的情況下,要根據大棚負載及時采取破膜保棚架措施,避免發生連棟大棚大面積倒塌。   做好大棚等設施的加固工作,要派專人管護大棚,特別是晚上要及時扒除大棚上的積雪,防止大棚倒塌。   毛竹林如何減輕雪災損失   斬梢搖冰是減輕雪災的主要應急措施。在積雪初期(雪尚未凝結成冰時)和化雪初期(氣溫回升到0度以上,冰雪開始融化時,約在每天上午9點至下午5點),對彎曲型和搭棚型的毛竹,要盡快組織人員上山斬梢搖冰。這時,竹梢下垂著地,人站立地面就可直接劈斷梢頭,易于操作,工效高。   斬梢搖冰的方法是:每株毛竹僅保留基部的20盤枝條,其余的枝盤用柴刀全部砍去,減輕毛竹的載冰重量。然后,輕搖毛竹或用棍棒敲擊竹竿,震落處于融化狀態的部分冰雪,保全毛竹 Catch the snow in time and lessen the damage. The snow will crush the plants and increase the damage. Keep the snow in time to prevent any mechanical damage and reduce the damage of the plants. Even a large shed should take measures such as sweeping snow, shoveling snow, salinizing snow and warming snow in the shed. Like snow too hard, greenhouses have collapsed risk, these measures can not work, want to give up those flowers insulation, jie, in addition to the relative covering use of relatively high soil temperature increase heat to melt the snow. In the absence of any other means, we shall adopt the broken film shelter and shelter in time according to the large shed load, and avoid the collapse of a large shelter. Do a good job of strengthening the shelter and other facilities, and send special people to protect the tent, especially in the evening, to remove the snow from the tent and prevent the collapse of the tent. How to mitigate the loss of snow damage in bamboo forests is the main emergency measure to mitigate the snow disaster. At the beginning of the snow, the snow has not yet been) condense into ice and snow early (the rise of temperature and 0 degrees above, when the snow began to melt, about a day at 9 am to 5 PM), to bend and dismantling of bamboo, to organize personnel as soon as shook up the hill to cut tip of ice. At this time, the bamboo tip droops down the ground, the person stands the ground to be able to cut off the head directly, easy to operate, the effect is high. The way to shake the ice is to keep only 20 branches of the base, and the rest of the branches are cut off with firewood, reducing the weight of bamboo. Then, gently shake the bamboo or use a stick to hit the bamboo pole, and it falls in part of the melting ice and ice, keeping the bamboo

返首頁:www.sweetpeaconcepts.com
精品无码国产一区二区三区麻豆