概述: 不同的树木对水份的需求不同,新种植的树和已经成长的树的浇灌方式也不同。

Hints:
The Vacaville Tree Foundation
California
校对:forever秋懵
翻译:marrywhy
组长:jilang
答疑:forever秋懵
Some trees can survive a long time without water. Think of trees that grow in the desert. But other trees may need more moisture than they can get from rainfall or from the air -- from, say, coastal or mountain fog. The soil stores moisture during cooler weather. But most of that moisture is gon…
有些树木能在长期缺水的环境下生存, 比如那些生活在沙漠中的树木。但有些树木除了依靠降水或空气中的水分外,还需要如沿海或山林里的雾气。 当天气变冷的时候,土壤会储存水分。但其储存的大部分水分在每年最热的几个月的中期或后期就消耗殆尽了。 树木和其他植物有时看起来很“渴”。这时候,树叶往往是下垂的,显…