【摘要】 根据实地调查,三峡库区开县前置库有维管植物116科307属410种(包括亚种、变种和变型),其中野生植物96科239属312种,国家保护植物5科5属5种.根据植物群落学-生态学原则,该区植被可划分为6个植被型,8个群系组,18个群系.因此该区的植物种类较贫乏,但栽培种类较多,约占总种数的1/4;植被的次生性质明显,主要为草丛和少量灌丛群落.根据该区的具体特征,提出开县前置库消落带的生态恢复应遵循工程措施与生物措施相结合、植被恢复为先导和生态位分化的原则.更多还原

【Abstract】 By field survey,there are 410 species(including subspecies,varieties,and forms) of vascular plants in pre-dam of Kai County within Three Gorges Reservoir.Among them,wild plants are 312 species in 239 genera of 96 families,and five of these species are the rare and endangered plants protected by the law in China.Its main vegetation types are classified into 18 formations,belonging to 8 formation groups and 6 vegetation types based on the plant community-ecology principle.Therefore,its plant species are relatively poor although the cultivated plants approximately account for a quarter of total species in this area;those vegetations,which are mainly composed of grasslands and a few shrublands,have markedly secondary characteristics because of man-made disturbance.In addition,the ecological rehabilitation about water-level-fluctuating zone in this area should be on the principles such as combination of engineering measures with biological ones,vegetation recovery as priovity,and niche differentiation based on its characters of plant diversity.更多还原