From this point of view,it is thought that the arti-ficial forests deteriorate their own soil water condition constantly, whichmakes the trees grow slowly and limits the growth amount with water.

• 从这个意义上来看,人工林是在不断地恶化自身生长的土壤水分条件,从而形成生长缓慢、生长量受降水量控制的局面。