【摘要】 采用遥感图解译、样地调查与定性描述相结合的方法,对西气东输工程江西段沿线植物群落进行了分类,并对主要群落生物多样性、生物量等基本特征进行测量与分析。结果表明:①天然植被主要有4个植被型组14个群系,人工群落有6个植被型组17个群系;②群落间物种多样性变异较大,枫香群落最高,草丛群落最低。同时还表现出天然林群落比人工林群落高的特点;③不同群落间的生物量差异也较明显,杉木林最大为110.15 t/hm(2单位下同),其次是马尾松人工林(97.28)、马尾松天然林(81.01)、枫香林(70.23)、木荷林(64.05)、毛竹林(64.00)、湿地松林(63.21)、苦槠林(32.00)、灌丛(5.15)、油茶林(3.57),最小的是草丛群落,仅为0.45t/hm2。更多还原

【Abstract】 Based on Remote Sensing Image Interpreting,sampling and analysis,the biodiversity and biomass of vegetations alongside West-to-East Gas Pipeline Project,Jiangxi were studied by using richness indices,species diversity indices and evenness indices,respectively.The results indicated that: ①the natural vegetations were grouped into 4 vegetation type groups(VTG),14 Foramtions;the artificials could be catetigoried into 6 VTGs,17 Foramtions;②the differences among biodiversity of coummunities were significant,Liquidambar formosana had the highest biodivesity and the herbal communities were the lowest.Meanwhile,natural communities were higher than the artifical in biodiversity;③ the differences among biodiversity of different coummunities were significant,Cunninghamia lanceolata plantation had the highest biomass,110.15 t/hm2,followed by the Pinus massoniama plantation(97.28),Form.Pinus massoniama natural forest(81.01),Form.Liquidambar formosana(70.23),Form.Schima superba(64.05),Form.Phyllostachys edulis(64.00),Form.Pinus elliottii(63.21),Form.Castanopsis sclerophylla(32.00),shrub(5.15),Form.Camellia oleifera(3.57),and herbal coummunities were the lowest,only 0.45 t/hm2.更多还原