辽宁林业科技
遼寧林業科技
료녕임업과기
JOURNAL OF LIAONING FORESTRY SCIENCE AND TECHNOLOGY
2012年
3期
1-4,40
,共5页
魏忠平%吴香财%潘文利%郭锦山%刘平
魏忠平%吳香財%潘文利%郭錦山%劉平
위충평%오향재%반문리%곽금산%류평
辽河三角洲%树种配置模式%土壤含水量%土壤盐分%土壤温度
遼河三角洲%樹種配置模式%土壤含水量%土壤鹽分%土壤溫度
료하삼각주%수충배치모식%토양함수량%토양염분%토양온도
Liaohe Delta%allocation pattern of tree species%soil water content%soil salinity%soil temperature
在辽河三角洲盐碱地台田上,布置小胡杨纯林、白蜡纯林、小胡杨×刺槐混交林、白蜡×刺槐混交林4种树种配置模式,对不同配置模式下的树木生长和土壤水、盐、温度进行了研究。结果表明,小胡杨、白蜡、刺槐在辽河三角洲盐碱地上造林均能成活,成活率达92%~98%。混交配置模式对树木生长具有显著的促进作用,优于纯林,其中小胡杨×刺槐混交模式好于白蜡×刺槐模式。与CK相比,4种模式均能改善土壤水分状况,降低土壤盐分,调控土壤温度,防止盐分表聚,4种模式间比较顺序是小胡杨×刺槐混交林〉白蜡×刺槐混交林〉白蜡纯林〉小胡杨纯林。可见,小胡杨×刺槐混交模式可作为该地区防护林营建的首选优化配置模式。
在遼河三角洲鹽堿地檯田上,佈置小鬍楊純林、白蠟純林、小鬍楊×刺槐混交林、白蠟×刺槐混交林4種樹種配置模式,對不同配置模式下的樹木生長和土壤水、鹽、溫度進行瞭研究。結果錶明,小鬍楊、白蠟、刺槐在遼河三角洲鹽堿地上造林均能成活,成活率達92%~98%。混交配置模式對樹木生長具有顯著的促進作用,優于純林,其中小鬍楊×刺槐混交模式好于白蠟×刺槐模式。與CK相比,4種模式均能改善土壤水分狀況,降低土壤鹽分,調控土壤溫度,防止鹽分錶聚,4種模式間比較順序是小鬍楊×刺槐混交林〉白蠟×刺槐混交林〉白蠟純林〉小鬍楊純林。可見,小鬍楊×刺槐混交模式可作為該地區防護林營建的首選優化配置模式。
재료하삼각주염감지태전상,포치소호양순림、백사순림、소호양×자괴혼교림、백사×자괴혼교림4충수충배치모식,대불동배치모식하적수목생장화토양수、염、온도진행료연구。결과표명,소호양、백사、자괴재료하삼각주염감지상조림균능성활,성활솔체92%~98%。혼교배치모식대수목생장구유현저적촉진작용,우우순림,기중소호양×자괴혼교모식호우백사×자괴모식。여CK상비,4충모식균능개선토양수분상황,강저토양염분,조공토양온도,방지염분표취,4충모식간비교순서시소호양×자괴혼교림〉백사×자괴혼교림〉백사순림〉소호양순림。가견,소호양×자괴혼교모식가작위해지구방호림영건적수선우화배치모식。
Through the application of four tree species allocation patterns, pure Populus simonii x P. euphratica stands, pure Fraxinns velutina stands, Populus simonii × P. euphratica and Robinia pseudoacacia mixed stands and Fraxinus velutina and Robinia pseudoacacia mixed stands, in saline-alkali raised fields of Liaohe Delta, tree growth, soil water content, soil salinity and soil temperature were researched. The research results showed that Populus simonii x p. euphratica and Fraxinus velutina could survive in saline-alkali soil of Liao- he Delta with the survival rate between 92% - 98%; the mixed allocation patterns were superior to pure stands and remarkably promoted the growth of trees; particularly, the Populus simonii × P. euphratica and Robinia pseudoacacia mixed allocation pattern was better than the Fraxinus velutina and Robinia pseudoacacia mixed allocation pattern. Compared with CK, all the four pattems could improve soil water content, reduce soil salinity, regulate soil temperature and prevent salt accumulation in surface soil, and the promotion effect of the four patterns was Populus simonii × P. euphratica and Robinia pseudoacacia mixed stands〉 Fraxirms velutina and Robinia pseudoacacia mixed stands〉pure Fraxirms velutina stands〉pure Populus simonii x P. euphratica stands. As a resul, the Populus simonii x P. euphratk'a and Robinia pseudoacacia mixed pattern was the preferred optimal allocation pattern of shelter forest construction of this area.