The Characteristics of Plant Life Form Spectra in the Karakorum-kunlun Mountains A comparative study on life-form spectra of evergreen broad-leaved forest in different successions in Jinyun Mountain Sabina przewalskii community structure in the upper reaches of Minjiang River The quantittive classfication and spatial distribution patttern of life form spectra of the plants in major chinese forest communities Assessment of Protection Efficiency to the Changbai Mountain Nature Reserve