半干旱风沙区抗逆树种优化造林模式试验  

Experiment on Afforestration Model of Resistant Species on Semiarid Sand Area

作　　者：王希武 

机构地区：[1]山西省杨树丰产林实验局薛家庄林场,山西朔州036000

出　　处：《山西林业科技》2009年第3期25-28,47,共5页Shanxi Forestry Science and Technology

基　　金：山西省科技攻关项目(2007031015)

摘　　要：通过对半干旱风沙区的平川沙荒、黄土丘陵典型立地类型的生态因子进行分析,以及对抗逆树种的乔、灌行间的混交试验,表明:1)平川沙荒区的生态条件比黄土丘陵区优越。风沙土立地类型造林要增施K肥,粗骨土造林要选择抗逆性最强的树种。平川沙荒区比黄土丘陵区的平均造林成活率提高了16.7%,林木年净高生长量提高了68%。2)针、阔、灌混交效果明显优于阔叶树乔、灌混交,紫穗槐、四翅滨藜比较抗风沙和耐干旱瘠薄的立地条件。By the analyses on ecology factors of flat land, hilly land of semiarid sand area, we conducted a mixed experiment with resistant arbor and shrub species. The result showed： （1） the ecology situation of flat land was better than that of hilly land. Afforestation of trees in sand land should consider the increase of potassium fertilizer application. Hilly land afforestation should consider resistant trees. The survive rate, yearly growth increment of trees in sand land increased by 16.7%, 68% in hilly land, respectively. （2） Effect of mixed forest with conifer, shrub and arbor was superior to effect of arbor and shrub. Amorpha and atyiplex canescen are resistant to sand and arid.

关 键 词：半干旱风沙区 抗逆树种 优化 造林模式 

分 类 号：S728.2[农业科学—林木遗传育种]