新疆防沙林带优化模式的研究  

A Study on the Optimal Model of Sandbreak Belt in Xinjiang

作　　者：刘钰华[1] 张纯[1] 

机构地区：[1]新疆林业科学院造林治沙研究所,乌鲁木齐830063

出　　处：《干旱区研究》1992年第2期13-26,共14页Arid Zone Research

摘　　要：在定位观测和调查基础上,本文研究了不同结构和类型防沙林带的防阻沙效能和特点,应用数量化理论公式,采用林带结构、疏透度、树种组成、带高、带宽和沙源等6个参数,经电算得出单带式防沙林带的阴积沙量、形成的沙丘高度和宽度三个预测模型。采用方差分析和新复极差法(LSR),得出不同结构和类型防沙林带阻沙效能的差异排序为:林草结合单带或多带式——窄带多带式和片林——紧密结构单带式——稀疏结构单带式——通风结构单带式。根据自然条件、流沙危害的程度和水资源特点,提出了准噶尔盆地南缘、塔里木盆地南缘和吐鲁番盆地等3个不同风沙生态区防沙林带的优化模式。On the basis of the orienting observation and investigation, the paper studied the sandbreak efficacy and characteristics of different types of sandbreak belt. And using the quantitative theory of formula, adopting the six parameters (structure of forest belt, permeability, composition of tree species, belt height, belt width and sand origin) to count the amount of breaking sand, the height and width of dunes of sandbreak forest of single belt. Under the analysis of variance and by the method of LSR, it obtained the order of sandbreak efficacy of different types of sand break belt, shown as follows: single or multiple belt of forest and grass existing together-multiple belt of narrow and wooded tract-tight structure of single belt-sparse structure of singl belt-aeration structure of singe le belt. According to the natural conditions, the degree of drift sand harm and the characteristics of water resources, the paper put forward the optimal model of sand break belt in the southern fringe of Junggar Basin and Tarim Basin as well as the Turpan Basin.

关 键 词：防沙林带 优化模式 

分 类 号：S727.23[农业科学—林木遗传育种]