恢复植被的土壤理化性质分析

ANALYSIS ON PHYSICAL AND CHEMICAL PROPERTY OF SOIL OF RECOVERY VEGETATION

为了恢复因石油的开采、运输等造成的植被破坏,对不同类型土壤上植被的恢复演替规律进行了分析,并对不同恢复阶段的土壤进行采样,分析土壤的理化性质(容重、含水量、全氮和全磷)与植物群落演替之间的关系。结果表明:土壤的容重和含水量与演替发生有正相关关系,氮、磷不是抑制演替发生的主要因素。因此可以通过人为方法改变土壤的疏松度,同时减少对恢复阶段脆弱生态系统的人为干扰来提高草地植被的恢复速度。

In order to renovate the vegetation which is destroyed by the process of petroleum exploitation and transportation, the succession regularity of vegetation in different kinds of soil w ere analyzed, and the soil which in different stages w ere sampled, in addition, the soil physical and chemical properties （soil density, water content, total nitrogen and total phosphorus） were analyzed at the same time. The results show that soil density and water content w ere positively correlated with plant succession, nitrogen and phosphorus was not primary factor which restrained the succession occur.So loosed degree of the soil could be changed artificially, and the restoration speed of vegetation was enhanced by reducing the disturbance of frail ecosystem in resuming stage.