Comparison between agricultural Land on alluvial fans at Qilian Mountain,Helan Mountain and Lüliang Mountain regions;

Comparison of Seasonal Feeding Habitats by Blue Sheep (Pseudois nayaur) During Winter and Spring in Helan Mountain, China;

Winter Habitat Selection of Alectoris chukar potanini in Helan Mountains,China;

Distribution and Abundance of Blue Sheep in Helan Mountains,China;

The Morphology of Main Plant Species in the Woodlands of the Helan Mountains;

Research on the Plant Communities Spatial Heterogeneity of the Helan Mountain;

The Maowusu Desert lies to the east of the Helan mountain and the other lies to the west of it.

By measuring the ring width of Pinus tabulacformis, analyzing the relation between the width and climatic factors, precipitation was reconstructed in the area of the Helan Mountain(38°31′N,105°46′E), which is located in the west environmental sensitive zone in north China, or in the transition from arid to semiarid regions (monsoon to nonmonsoon).

Studies on Population Quantity and Dynamics of Red Deer in Spring for Helanshan Mountain of Ningxia;

Through analysis of dynamic changes of forest resources in Helanshan mountain during various periods,the law of change of forest resources in Helanshan mountain was clarified and the objective of the struggle for a sustainable development of forest in Helanshan mountain was put forward there on.

On the basis of analysis and study of years monitoring data , some idea of my own on the feasibility ,urgency as well as protection measures of forest conservation in Helanshan mountain was put forward.

Investigation on changes of snow cover and climate in Helanshan mountains for the past approximate millennium;

The Seasonal Change of Blue Sheep Population Structure in Helanshan Mountains;

Latent Problems on Protecting Ecosystem of Helanshan Mountains and Their Countermeasures;