【关于环境保护的英语作文最好阐述树木对环境的重要性,100--查字典问答网
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  【关于环境保护的英语作文最好阐述树木对环境的重要性,100-120个词左右的英语作文】

  关于环境保护的英语作文

  最好阐述树木对环境的重要性,100-120个词左右的英语作文

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2020-01-16 12:19
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李翎樊

  Treescanbedamagedorkilledbyawidevarietyofconstructionactivities.Somepracticesleadtoobviousinjuriessuchasbrokenbranchesortornbark.Openwoundsofthistypedepleteaplant'senergyresourcesandprovideentrypointsforinsects,orfordiseasessuchasoakwilt.Theworstdamage,however,oftenremainshiddenunderground.Rootsareoneofthemostvitalpartsofatree.Theyareresponsiblefornutrientandwateruptake,storeenergy,andanchortheplant.Becausetheyaresoimportant,itiscriticalthatyouprotectrootsthatlieinthepathofconstruction.Treesareneverthesameshapebelowgroundastheyareabove,soitisdifficulttopredictthelengthorlocationoftheirroots.Typically,however,approximately90-95percentofatree'srootsystemisinthetopthreefeetofsoil,andmorethanhalfisinthetoponefoot.ThepartofthisrootsysteminwhichconstructiondamageshouldbeavoidediscalledtheProtectedRootZone

2020-01-16 12:20:38

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