Yulin district is located in the most Northern part of Shaanxi province.

Dynamic analysis on changes of desertification in desert-loess boundary belt during the last 10 years——A case study on Yulin area in North Shaanxi Province;

Types and temporal-spatial change of desertized land in the Yulin area,n orthern Shaanxi;

It has one gener-ation a year in Yulin area,Shanxi Province,it lives through the cold winter as queens in hibernation.

Eco-system values of services changes research in Yulin Shaanxi;

Yulin, as a high level of national coal resource-rich region and national energy and heavy chemical industry base, by the exploitation process of coal resources, Yulin is facing the contradictions between the development of economy and ecological protection.

Dynamical changes of landscape pattern in Yulin region based on GIS;

Study on the Development Model of Green Agriculture in Yulin Region

Based on the analysis of the relationship between the human activity and environmental deterioration, the sensitive factors influencing the eco-environmental change were studied, and by determining the weights of each factor to susceptibility of environmental deterioration with AHP method, the susceptibility of different counties in Yulin region were calculated.