In order toinquire into the effects of different irrigation intensity on the dynamic growth and productivity of Pinus sylvestris var.mongolica plantation,the seedling height and ground diameter of Pinussylvestris var.mon-golica were simulated by field irrigation experiments.The results showed as the following two aspects.(1)Multi-ple comparisons between different irrigation treatments were carried out on five biologically significant indicators in the growth model,including theoretical growth upper limit,growth acceleration point,growth deceleration point,fast-growing point and fast-growing period.The difference of parameters dominated by irrigation intensity made the growth model of seedling height and ground diameter of Pinus sylvestris var.mongolica have polymorphism.(2)When the irrigation intensity was three times of the natural precipitation,the annual growth of seedling height was the largest.
关键词
灌水强度/毛乌素沙地/樟子松/苗木生长
Key words
irrigation intensity/Mu Us Sandy Land/Pinus sylvestris var.mongolica/seedling growth
维普
万方数据