简介:沙虫,其貌不扬,虽然没有海参、鲍鱼名贵,但味道鲜美脆嫩,为“鲍参翅肚”所不及;,沙虫药食两用,被誉为“海洋虫草”,一些地方用它来代替“冬虫夏草”用于食疗。它富含蛋白质,多肽成分,17种氨基酸,其中人体必需的氨基酸含量很高,除此之外还含有钙、磷、铁、锌、锰、镁等12种微量元素以及虫草素等具有抗氧化,抗菌,抗辐射,抗病毒,抗疲劳,防癌,调节免疫,延缓衰老作用的营养成分。因其身体结构简单,洗去肠内沙粒以后全条沙虫都可食用。沙虫的做法有很多,爆炒、清蒸、煮汤、熬粥、椒盐或油炸均可。在此为大家介绍一种最简单却又不失风味的沙虫烹饪方法.
简介:ThecorrectmethodusedinforestsoilrespirationmeasurementbyLi-6400isapremiseofdataqualitycontrol.Accordingtothestudyinalarchplantation,collarsshouldbeinsertedat12hoursinadvancetoefficientlyreducetheinfluenceofCO2spring-out.Moreover,collarinsertiondepthsubstantiallyaffectedsoilrespirationmeasurement,i.e.whencollarwasshallowlyinsertedintosoil,transversalgasdiffusionandtheCO2re-spring-outcausedbyunstablecollarsinthemeasurementcouldleadtooverestimatingsoilrespirationrate;however,whencollarwasdeeplyinsertedintosoil,rootrespirationdeclinecausedbyroot-cutandthemostactiverespiratoryofthesurfacesoilseparatedbytheinsertedcollarscouldleadtounderestimatingsoilrespirationrate.Furthermore,anerrorlessthan5%couldbeguaranteedintypicalsunnydayifthetarget[CO2]wassettothemeanvalueofambient[CO2]inmosttimeoftheday,butitshouldbecarefullysetinearlymorningandlateafternoonaccordingtochangingambient[CO2].Thisprotocolofmeasurementisusefulinrealmeasurement.