河北林果研究
河北林果研究
하북림과연구
HEBEI JOURNAL OF FORESTRY AND ORCHARD RESEARCH
2014年
3期
241-244
,共4页
姚卫红%姚卫星%杨新兵%张荣风%田超
姚衛紅%姚衛星%楊新兵%張榮風%田超
요위홍%요위성%양신병%장영풍%전초
华北落叶松%林缘%植物丰富度
華北落葉鬆%林緣%植物豐富度
화북락협송%림연%식물봉부도
Larix principis-rupprechtii%forest edge%species richness
以华北落叶松人工林为研究对象,采用30 m的样带法,比较了林分草本植物丰富度和生物量的变化规律。结果表明:华北落叶松人工林林缘草本植物M enhinick丰富度指数随距林缘距离的增大而减小。密度为630株/hm2时,随林缘距离的变化不明显,其他密度林分林缘草本植物M enhinick丰富度指数与距林缘距离呈明显的幂函数关系,相关系数均大于0.8735。低密度林分林下草本植物生长好于高密度林分,不同林分林下草本植物生物量与林分密度呈明显的幂函数关系。草本植物M enhinick丰富度指数和生物量能较好地反映华北落叶松的林缘效应。
以華北落葉鬆人工林為研究對象,採用30 m的樣帶法,比較瞭林分草本植物豐富度和生物量的變化規律。結果錶明:華北落葉鬆人工林林緣草本植物M enhinick豐富度指數隨距林緣距離的增大而減小。密度為630株/hm2時,隨林緣距離的變化不明顯,其他密度林分林緣草本植物M enhinick豐富度指數與距林緣距離呈明顯的冪函數關繫,相關繫數均大于0.8735。低密度林分林下草本植物生長好于高密度林分,不同林分林下草本植物生物量與林分密度呈明顯的冪函數關繫。草本植物M enhinick豐富度指數和生物量能較好地反映華北落葉鬆的林緣效應。
이화북락협송인공림위연구대상,채용30 m적양대법,비교료림분초본식물봉부도화생물량적변화규률。결과표명:화북락협송인공림림연초본식물M enhinick봉부도지수수거림연거리적증대이감소。밀도위630주/hm2시,수림연거리적변화불명현,기타밀도림분림연초본식물M enhinick봉부도지수여거림연거리정명현적멱함수관계,상관계수균대우0.8735。저밀도림분림하초본식물생장호우고밀도림분,불동림분림하초본식물생물량여림분밀도정명현적멱함수관계。초본식물M enhinick봉부도지수화생물량능교호지반영화북락협송적림연효응。
Using the 30 m transect method the variation of the forest herb richness and bio-mass of Larix principis-rupprechtii plantation was compared .The results showed Larix principis-rupprechtii edge herb Menhinick richness decreased with increasing distance from the forest edge .When at density of 630 trees perhectare ,there was no obvious forest edge distance variety ,with herbaceous Menhinick richness index at the other edge forest stand density having an apparent power correlation to the forest edge distance and its coefficient R was greater than 0 .873 5 .Understory herbs were doing better at low density than high density ,and different understory herbaceous plant biomass and stand density showed a significant exponential relationship .Herb Menhinick richness and biomass can better reflect the forest edge effect of Larix principis-rupprechtii .