英南试验示范区防蚀保土型农林复合经营类型布局技术研究

Soil-conserved agro-forest at Yinan experimental and demonstrational area—— Management type, Arrangement techniques

为了控制丘陵农林复式分布区的水土流失 ,增加农民收入 ,在 37块样地调查资料的基础上 ,运用数量化理论 (Ⅰ )量化因子指标 ,通过模糊聚类 ,将试验示范区分成 5个立地类型。采用综合数值分析法和相对系数法对土壤肥力进行综合评价排序 ,再根据每个立地类型的生态环境特点和树、草种特性 。

The purpose of the research in this paper is to control soil erosion in agro-forest of hilly areas and to improve the income of local farmers Based on the data collected from 37 experimental plots, applied quantitative analysis theory to quantize the forest factors, and used fuzzy regression method, five types of stand site were identified in the experimental and demonstrational protection forest areas By means of comprehensive mathematic analysis, fertilizer capacity of soil were evaluated and sequenced Then different complex agro-forest pattern,according to stand site type and biological characteristics of grass and trees, were assembled respectively