苔藓植物多样性保护现状

Conservation Circumstance on Diversity of Bryophytes

苔藓植物门分为三个纲 .藓纲约有 70 0属 ,1 5 0 0 0种 ;苔纲约有 330属 ,80 0 0种 ;角苔纲约有 4属 2 0 0种 .苔藓植物对环境胁迫有很强的抗性 ,分布广泛 .苔藓植物在森林群落中属于地被层 ,在保护生态系统的平衡中有重要作用 ,与人类的生存与发展密切关系 .苔藓植物多样性保护方面已经做了大量工作 ,如许多国家和地区出版苔藓植物植物志和刊物 ;对苔藓植物进行分子生物学和遗传多样性研究 ;公布濒危物种名录 ;设立自然保护区等 .但是随着森林砍伐、植被破坏和环境污染的加重 ,苔藓植物物种的灭绝和濒危仍在继续 .

The bryophytes was divided into three class. Musci have about 700 genus and 15?000 species, Hepaticae have about 330 genus and 8?000 species, Anthocerotae have about 4 genus and 200 species. The resistance of bryophytes to environmental coericion are very capable and dispersed wildly over the world. The byophytes belongs to forest floor and are a important factor in preserving ecological equilibrium of forest ecosystem. Many works have done in diversity protection of bryophytes. Example same country and area published species Muscorum , species Hepaticorum and bryophytes pulication, researched genetic diversity, promulgated species catalogue which were in imminent danger, set up natural protection region and so on. But to cut forest, to destroy vegetation and to pollute environment are still in expansion at the world. Bryophyte species extinction and imminent danger are yet continual development. It is hard and long works to protect species diversity of bryophytes.