草业科学
草業科學
초업과학
PRATACULTURAL SCIENCE
2009年
12期
87-91
,共5页
整地方式%群落特征%多样性
整地方式%群落特徵%多樣性
정지방식%군락특정%다양성
land preparation method%community characteristics%diversity
以固定样地的群落样方调查数据为依据,对宁南山区不同整地方式下退化草地植物群落恢复过程中的动态特征进行了对比研究.结果表明:在一定时间尺度上,生境的异质性对鱼鳞坑整地植物群落的结构影响较大,整地方式对植物群落结构特征的影响不明显.植物群落物种多样性由高到底的顺序为:鱼鳞坑整地>"88542"水平沟整地>天然封育草地.对于封育5年的草地,鱼鳞坑与水平沟的整地方式对草地植物群落特征的影响不明显,自然生态因子对草地植物群落特征的影响比人为整地方式影响强.
以固定樣地的群落樣方調查數據為依據,對寧南山區不同整地方式下退化草地植物群落恢複過程中的動態特徵進行瞭對比研究.結果錶明:在一定時間呎度上,生境的異質性對魚鱗坑整地植物群落的結構影響較大,整地方式對植物群落結構特徵的影響不明顯.植物群落物種多樣性由高到底的順序為:魚鱗坑整地>"88542"水平溝整地>天然封育草地.對于封育5年的草地,魚鱗坑與水平溝的整地方式對草地植物群落特徵的影響不明顯,自然生態因子對草地植物群落特徵的影響比人為整地方式影響彊.
이고정양지적군락양방조사수거위의거,대저남산구불동정지방식하퇴화초지식물군락회복과정중적동태특정진행료대비연구.결과표명:재일정시간척도상,생경적이질성대어린갱정지식물군락적결구영향교대,정지방식대식물군락결구특정적영향불명현.식물군락물충다양성유고도저적순서위:어린갱정지>"88542"수평구정지>천연봉육초지.대우봉육5년적초지,어린갱여수평구적정지방식대초지식물군락특정적영향불명현,자연생태인자대초지식물군락특정적영향비인위정지방식영향강.
The study on the dynamic plant community characters of recovering degraded steppe under different land preparing methods was studied in southern Ningxia by surveying the fixed sample plots. The results indicated that the heterogeneity of habitat affected the plant community structures with land preparing method of fish-scale pit at certain temporal scale. The rest land preparing methods had a little effect on plant community structures. The order of plant diversity in 3 sample plots was fish-scale pit > "88542" level furrow > enclosed natural steppe. As for the enclosed natural steppe for 5 years, the fish-scale pit and level furrow methods had a little effect on the plant community and the natural ecological factors had a greater effect.