草原的生态系统服务:IV.降低服务功能的主要因素和关爱草原的重要意义

草原/草地生态系统服务的价值大小取决于草地的自然资本大小和生态系统功能。影响草原生态系统服务功能的最主要因素是,1.改变草地生态系统的用途,2.草地破碎化,3.火,4.草原退化;对它们影响草原生态系统服务功能的原因和机制进行了论述。草原分布广泛,约占地球陆地面积的40%,有40个国家的草地面积占国土面积的50%以上。世界上有17%,即9.38亿人生活在各类草地上并以草地为生,尽管已经证实草原对全世界和全国人民极其重要,但草原提供的生态系统服务———生态服务和产品服务仍没有得到应有的认识和足够的重视。由于生态系统服务的影响深远,健康的草原及其生态系统服务惠及全国和全世界人民;相反,破坏、损失草原自然资本殃及全国和全世界人民。因此,关爱草原,使草原走可持续发展的道路,是全人类共同的责任和义务。

Ecosystem services of rangeland/grassland:Key factors reducing function and thematic meanings for caring rangeland/grassland

The value of rangeland ecosystem service depends onof the amount of natuaralcapital and ecosystem function.The key factors that affect the ecosystem service function of rangeland/grassland are:1) altering the rangeland/grassland uses;2) fire;3) rangeland/grassland deterioration.The reason causing the influences of above mentioned factors on the ecosystem service function of rangeland/grassland was analyzed in this paper. The widely distributed rangeland/grassland accounts for about 40% of the world land and its accounts for more than 50% of total land area in 40 countries Around 17% of world population, i.e. 9.38bilions, are living in rangeland/grassland area and their livelihood relies on rangeland/grassland. Although it has been proved that rangeland/grassland is critically important for national/international people, the ecosystem service provided by rangeland/grassland is still not paid enough attention. The healthly rangeland/grassland and its ecosystem service are profiting the people over the world because of the far reaching influence of rangeland/grassland capital was damaged or lost. Therefore it is the corporate duty and obligation of people all over the world to care rangeland/grassland in order to enable the rangeland/grassland sustainable.