集流抗旱造林技术优化模式研究  

Optimization Pattern of Afforestative Techniques with Collecting Runoff to Drought—resistance

作　　者：余清珠[1] 王进鑫[1] 高文秀 郭启程 

机构地区：[1]西北林学院,陕西杨陵712100 [2]延安地区水土保持研究所

出　　处：《水土保持通报》1993年第4期15-19,共5页Bulletin of Soil and Water Conservation

摘　　要：本项研究采用正交试验,选用L_9(3~4)正交表拟定试验方案,对半干旱黄土丘陵沟壑区集流抗旱造林技术优化模式进行了研究,结果表明:影响造林质量的四个因素顺序是:造林树种(A)>栽植穴覆盖材料(D)>单株集流面积(B)>造林整地工程(C)。各因素中水平顺序如下:A因素中:刺槐>白榆>侧柏;D因素中:农膜>泡沫>作物秸秆;B因素中:2.5m^2>2.0m^2>1.5m^2;C因素中:反坡梯田>水平沟>鱼鳞坑。半干旱黄土丘陵沟壑区集流抗旱造林技术优化模式是:A_2D_2B_3C_1,即造林树种为刺槐,栽植穴覆盖材料为农膜,单株集流面积为2.5m^2,造林整地工程为反坡梯田。The optimization pattern of afforestative techniques with collecting runoff to drought-resistance was present-ed by using L_9^(3^4) plan in the orthogonal experiments. It has shown that the order of four factors contributed to af-forestative quality is as follow:afforestative species (A)>cover material in the planted pits (D)>collection area ofrunoff for each tree(B)>land preparation for afforestation (C). Of all factors,the order of the same kind is asfollow: for A , Robinia pseudoacacia L. >Ulmus Pumila >Platycladus orientalis Franco ; for D,film>foam mateial>straw ; for B, 2.5m^2> 2.0m^2> 1. 5m^2; and for C, reverse slope terrace>level furrom>fish - scale pits. In semi -arid loess hilly areas, the optimization pattern of afforestative techniques with collecting runoff to drought-resis-tance is A_2D_2B_3C_I. Namely, afforestative species is Rohinia Pseudoacacia L; the cover material of planted pits isfilm; the collection area of runoff for each tree is 2.5m^2,and the land preparation pattern for afforestation is reverseslope terrace.

关 键 词：集流 优化模式 干旱区 造林 

分 类 号：S728.2[农业科学—林木遗传育种]