[Responses of the spatial distribution of to stocking rate at different scales].

We conducted an experiment to test the characteristics and differences of the spatial distribution of constructive species at different scales under different stocking rates in the desert steppe in Siziwang Banner, Inner Mongolia. The spatial distribution of under four treatments (control, light grazing, moderate grazing, and heavy grazing) at different scales (small scale as 1 m×1 m and mesoscale as 5 m×10 m) were analyzed. The results showed that the population density of at mesoscale in the control and light grazing was significantly lower than that at the small scale.

[Effects of mowing height on community structure and stability in Stipa grandis steppe].

We examined the effects of mowing height on community structure and stability in August from 2014 to 2018 in a Stipa grandis steppe of Xilingol, Inner Mongolia, China. Three mowing height treatments (2, 5 and 8 cm) were manipulated, with enclosure as the control. Results showed that 27 species from 23 genera of 15 families were recorded in the community.

[Effects of grazing intensity on spatial heterogeneity of the constructive species Stipa breviflora in desert steppe.].

This study evaluated the changes of spatial distribution of the constructive species Stipa breviflora in the desert steppe under different grazing intensities (control, light, moderate, and heavy grazing) in Siziwang, Inner Mongolia. The small-scale spatial distribution of S. breviflora was measured.

[Analysis of imported falciparum malaria cases of Nantong City from 2001 to 2010].

Objective: To analyze the characteristics of imported falciparum malaria cases of Nantong City in the recent ten years so as to provide the evidence for improving prevention and control of malaria in the future.

Methods: The data about imported falciparum malaria cases of Nantong City from 2001 to 2010 were collected and analyzed for the characteristics and distribution of the patients by the retrospective method. RESULTS; There were 79 imported falciparum malaria cases in the last 10 years.

[A related heredity epidemiological research on allergic rhinitis and asthma in Nantong region].

Objective: To discuss the related impact of genetic factors in the incidence of bronchial asthma (BA) and allergic rhinitis (AR) in Nantong region, China.

Methods: By random sampling method, investigation and research on the incidence of genetic epidemiology were carried out in the population of 95 300 on AR and BA.

Results: The rate of patients with allergic rhinitis with asthma was 25.

[Genetic epidemiological study on allergic rhinitis in Nantong region of Jiangsu Province].

Objective: To explore the effects of genetic factors on the occurrence of allergic rhinitis (AR).

Methods: The morbidity rate of AR was surveyed by multistage sampling among 95 300 individuals (23,825 families) in Natong region, Jiangsu province. And a genetic epidemiologic investigation on AR was carried out to estimate the segregation ratio and heritability (h2) of AR by the methods of Li-Mantel-Gart and Falconer respectively.