Contrastive analysis of environmental factors between Oncomelania hupensis snail marshland and snail natural death marshland in eastern Dongting Lake schistosomiasis endemic areas

• Published in: Zhongguo xue xi chong bing fang zhi za zhi Vol. 26; no. 2; p. 121
• Main Authors: Zheng, Sheng-bang, Li, Lin-han, Zhou, Yi-biao, Wu, Jin-yi, Song, Xiu-xia, He, Zhong, Cai, Bin, You, Jia-bian, Jiang, Qing-wu
• Format: Journal Article
• Language: Chinese
• Published: China 01.04.2014
• Subjects: Animals; China; Endemic Diseases; Hydrogen-Ion Concentration; Lakes; Schistosomiasis - epidemiology; Snails - growth & development; Snails - physiology; Soil - chemistry; Temperature; Water - analysis; Wetlands
• ISSN: 1005-6661

To study the reasons of natural death of Oncomelania hupensis snails in marshland by comparing the differences of environmental factors between snail marshland and non-snail marshland in East Dongting Lake schistosomiasis endemic areas. Two adjoining marshlands were selected, one was a snail marshland and another was a non-snail marshland. The measuring points were set by grid of "20 m x 20 m". The soil moisture, elevation, soil pH and temperature of the points were measured, and the snails of the points were surveyed. The elevation, soil pH and temperature of the snail natural death marshland were all lower than those of the snail marshland (P < 0.01). The soil moisture, elevation, soil pH and temperature of different snail densities in the snail marshland were different (P < 0.05). The soil moisture of the non-snail group was higher than that of other four groups (P < 0.01) and the soil moisture of the group with 0-11 snails per frame was lower than that of other four groups (P < 0.01). The elevation of the