南水北调中线工程总干渠沿线立地条件分析与植被模式配置

Site Condition Analysis and Vegetation Arrangement Pattern Along General Canal of Middle Line Engineering of Transferring Water from South to North of China

在对南水北调中线工程总干渠沿线土壤类型、地质地貌以及植被特征等进行综合调查与评价的基础上,采用主导因子法,将总干渠沿线立地划分为4级(2个立地区域,4个立地区,7个立地亚区和11个立地类型)。在此基础上,结合总干渠沿线生态防护林建设的目的和所要体现的主要功能,选出47种具有不同用途的乔灌植物,建立了针阔乔灌、双阔乔灌和针乔灌3种系列27种防护林空间配置模式;选出具有多种功能的护坡灌草植物38种,建立了单一草地(草坪)、混合草地(草坪)、矮生灌木系列、草灌系列、缀花草坪5种系列41种植物护坡模式,并将不同植被配置模式分别落实到不同典型地段上。

On the basis of comprehensive investigation and evaluation to the soil type, geologic and geomorphology and vegetation characteristic along the general canal of the middle line engineering of transferring water from the South to the North of China, site condition along the general canal are divided into four classes(2 site regions, 4 site areas, 7 site subareas, 11 site types) by the main factor method. On the basis of site division, 47 kinds of arbors and shrubs, and 27 kinds of protection forest space arrangement patterns are built, 38 kinds of shrubs and grasses, and 41 kinds of plants protection slope patterns are built, and all kinds of vegetation arrangement patterns are put on the different site types.