The value and preservation of Daur s huokang culture;

The division of nature reserve into the core zone and experimental area is based on the pattern of protection value differentiation, while the buffer is zoned in order to protect the core and to study and monitor natural eco system.

The vegetation types of Wuliangshan National Nature Reserve is divided at level of formation,and protection values of the vegetation in the reserve are quantitatively evaluated from 7 aspects in rareness,peculiarity,ecological importance,fragility,disturbance,dominance of rare species and diversity.

Based on analyzing 1604 famous and ancient trees distributed in Yunnan province, and the following protection value of ancient and famous trees were identified.

The Valuation and Hedging of Some Derivatives under Incompleteness;

Study on Identification of High Conservation Value Forest in Beijing Mountainous Region;

Focus on the features of high conservation value forest in combination with the evaluation of forest values in terms of existing economy theories,the paper evaluates the values of high conservation forest in Beijing from 2 aspects of biodiversity and ecological service function.

Beijing is the capital of China, the study on high conservation value forests in beijing is important to develop the forest certification, forest management, landscape planning, nature reserves planning.