The first title: Qinghai-Tibet Plateau cushion plants in the alpine zone of the plant community distribution The second title: Androsace cushion against the impact of the diversity of alpine plants
Protection forest Forest and mankind， mankind intimate partners， is an important part of the global ecological If there is no forest land， most biological extinction， the vast majority of water will flow into the ocean; the oxygen in the atmosphere will reduce， carbon dioxide will increase; the temperature can significantly increased， flood and drought disasters occur Forest， but also can improve the air quality， reduce soil loss， water conservation， reduce the harm of sand blown by wind， reduce noise pollution， beautify the environment and so The forest is precious natural resources， is the human to pillar foundation， and was known as the "lungs of the earth" Why the forest to maintain the ecological balance has an important role? First of all， the nature of all need oxygen to sustain life， and forest is a natural oxygen machine， if the forest and other green plants， is destroyed， the biological survival loses In addition， the forest can regulate the temperature， stop acid rain， dust， noise is attenuated， reducing wind， reduce natural Destruction of forest resources to environmental impact is very serious， loss of ecological Caused by high temperature， air quality is bad， also caused the extinction of wild animals Forest fire is the most dangerous enemy is forest， forestry is the most terrible It will give the forest with devastating Forest fire not only burned forest patches， injury in animals， but also reduce the forest regeneration ability -- a fire， the forest may take decades or even centuries to It can cause the poverty of the soil and water conservation function of forest destruction， even lead to ecological Although now the world science in developing rapidly， however， the human in the uniform of forest fires， but still has not been made a great Forest fire， refers to losing control people， free spreading in woodland， forest， the forest ecosystem and the human bring certain harm and loss of forest fire Forest fire is a sudden， devastating natural disasters， handling more The present situation of the forest， a lot of people do not Please see" -- many tractors， bulldozers rumbled， difficult to count the trees down to the The animals were scared away， plots of land were bulldozed flatIt is human behavior? Love forest! Action bar! Deforestation deforestation forest is human folly， then do not do the harm We must protect the existing forest resources! Beware of forest fires happening again!
