四川盆地江岸立地条件与立地分类研究  

RESEARCH OF R IVERBANK SITE COND ITIONS AND CLASSIFICATION IN SICHUAN BASIN

作　　者：唐纯科[1] 李天星[1] 范继才[1] 陈东立[1] 陈瑁[1] 

机构地区：[1]四川农业大学都江堰分校,四川都江堰611830

出　　处：《西南农业大学学报（自然科学版）》2005年第5期717-720,共4页Journal of Southwest Agricultural University

基　　金：国家重点科技攻关项目资助课题"四川盆地江岸防护林结构模式分析及功能评价"(85-19-01-07-03)

摘　　要：依据四川盆地地区77个江岸防护林标准地调查资料,在对立地条件进行分析评价的基础上,采用定量与定性相结合的方法,对研究区江岸立地条件进行了分类。结果表明:江岸范围(护岸林合理林带宽度)为多年最高平均洪水位以下、常水位以上;首次提出了岸位的概念及其划分系统;土壤种类由低到高依次分布有砂砾质、砂泥质、河流冲积土、老冲积黄壤、姜石黄壤;土壤质地依次由粗变细、由砂变粘;土壤发育由浅变深;以江段、岸位、坡度、岸形、土壤种类为依据划分了2个立地类型区、10个立地类型组、26个立地条件类型。Based on the investigation data in 77 standard sites of riverbank protection forests, their site conditions were analyzed and evaluated. Qualitative and quantitative methods were combined to classify the riverbank site conditions in the areas investigated. “Riverbank” （ the reasonable width of riverbank protection forest ） is defined as the zone between the highest average flood level and the common flow level. A new concept of “bank position” was developed and its classification system was brought forward. From lower to higher positions, sand gravel, sand mud, flow alluvial soil and old alluvial soil were distributed, soil texture changed from coarse to fine and from loose soil to clay, and soil developed from shallow to deep. According to fiver segments, bank location and gradient, bank shape and soil type, 2 sorts of site sections, 10 sorts of group site sections and 26 sorts of specific sites are classified.

关 键 词：四川盆地 江岸范围 岸位 立地评价 立地分类 

分 类 号：S714.4[农业科学—林学]