塔里木沙漠公路防护林造林树种生长动态研究

Study on Dynamic Growth of Forestation Trees on Talimu Desert Highway

2005年测定了塔里木沙漠公路防护林塔中段不同年龄防护林造林树种的树高、冠幅、基径及分蘖数,依据不同年龄的防护林植物的形态指标建立其生长方程。分析表明,梭梭和沙拐枣的树高、冠幅、基部截面积,柽柳的冠幅生长过程都符合对数型增长,用对数方程可以进行很好的模拟;柽柳的树高和基部截面积生长符合Logistic增长模型,可以用Logistic方程进行很好的模拟。依据测定的形态指标,建立了三种防护林植物生长的数学模型,为塔里木沙漠公路防护林的经营管理提供了依据。

We measured the forestation trees of shelter - forest in different ages on Talimu desert highway, including height, canopy, base diameter and tiller numbers. According to these index of plant anatomy, built up growth equation. The results showed, Haloxylon ammodendron Bunge. and Calligonum monglium Turcz. logarithmic increased by height, canopy, base diameter. The canopy of Tamarix ramosissima Ledeb. also has logarithmic growth. Using logarithmic equation could have good simulation- the growth of height and base diameter of Tamarix ramosissima Ledeb. accord with logistic model. On the ground of the index of anatomy, built - up mathematical model of three shelter - forest growth, it provides basis of operation and management on Talimu desert highway.