半干旱区石质荒山掘壕整地造林效果分析  

Trench Afforestation Technology on Rocky Hills in Semiarid Area

作　　者：王力刚[1] 李峰[1] 高野[1] 王韡烨[1] 

机构地区：[1]黑龙江省森林与环境科学研究院,黑龙江齐齐哈尔161005

出　　处：《防护林科技》2013年第12期13-16,共4页Protection Forest Science and Technology

摘　　要：石质荒山作为黑龙江省西部半干旱区典型困难立地类型之一，其绿化难度较大，成为该区植被恢复及生态建设的难点之一，采用常规整地造林技术很难达到预期效果，为此试验尝试了掘壕整地造林技术模式，开展了这一整地方式对土壤水分条件、造林地微域小气候及造林成活率与林木生长影响的相关研究。结果表明，采取这一整地造林技术措施，可使土壤含水量提高7％～51．53％；在生长季5-9月可减少水面蒸发量194．1mm；可使造林成活率提高了24．6个百分点；幼树高生长提高22．18％～187．64％。造林效果显著。Rocky Hills ,as one of the typical difficult site in semiarid area in western Heilongjiang Province ,which is difficult for landscaping ,become one of the difficulties of vegetation restoration ＆ ecological construction in this are-a;adopting conventional techniques for silviculture is difficult to achieve the desired effect ;trench-afforestation model were tried ;related research on soil moisture conditions ,micro-domain microclimate on afforestation site ,survival rate＆ tree growth were conducted .Result shows that taking this preparation technical measures ,can improve soil mois-ture by 7% -51 .53% ,can reduce evaporation by 194 .1mm in the growing season from May to September ,can im-prove the survival rate by 24 .6% ;height growth of the saplings increase by 22 .18-187 .64% .The effect of trench afforestation on semiarid rocky hills is significant .

关 键 词：黑龙江西部 掘壕整地 土壤水分 小气候 造林成活率 

分 类 号：S728.2[农业科学—林木遗传育种]