期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
东太湖沉水植物现状及影响因子分析 被引量:13
1
作者 徐德瑞 周杰 +2 位作者 张建华 徐秀楠 吴时强 《水电能源科学》 北大核心 2020年第4期64-67,94,共5页
为确定东太湖沉水植物生物量与环境因子的关系,通过对2013~2017年东太湖水生植物种群结构和水环境状况进行野外调查,分析了水生植物的现状和各因子对沉水植物生物量变化的影响。结果表明,采样区共发现水生植物14种,其中沉水植物6种,浮... 为确定东太湖沉水植物生物量与环境因子的关系,通过对2013~2017年东太湖水生植物种群结构和水环境状况进行野外调查,分析了水生植物的现状和各因子对沉水植物生物量变化的影响。结果表明,采样区共发现水生植物14种,其中沉水植物6种,浮叶植物6种,挺水植物2种,生物多样性持续减少;东太湖水深先升后降,pH值、叶绿素a含量不断增加,透明度快速下降,营养盐含量变化不大,水下光照环境的恶化越来越不利于沉水植物生长;透明度、温度和pH值等影响因子对沉水植物季节生长和光合作用具有重要影响,其中透明度是影响沉水植物生物量变化的最主要因素。 展开更多
关键词 东太湖 沉水植物 影响因子 统计分析
下载PDF
Body Mass Index and Hypertension Hemodynamic Subtypes in Yi Farmers and Migrants 被引量:1
2
作者 SHAN Guang Liang WEI Da Ying +8 位作者 WANG Chun Xiu zhang jian hua WANG Bin MA Ming Ju PAN Li YU Tao XUE Fang WANG Ping WU Zheng Lai 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2012年第1期53-60,共8页
Objective To examine the relationship between overweight or obesity and the risk of the various hypertension hemodynamic subtypes in Yi farmers and migrants. Methods A cross-sectional study of 2 358 Yi farmers and 2 3... Objective To examine the relationship between overweight or obesity and the risk of the various hypertension hemodynamic subtypes in Yi farmers and migrants. Methods A cross-sectional study of 2 358 Yi farmers and 2 392 Yi migrants was carried out in the Liangshan Yi autonomous prefecture, Sichuan, China in 2007. Results The standardized prevalence of overweight in female Yi farmers (6.22%) was higher than in males (3.25%), whereas in Yi migrants 32.56% of males and 28.78% of females were overweight. The standardized prevalence of obesity was 0 and 0.62% in male and female Yi farmers, compared to 3.91% and 5.57% in male and female Yi migrants, respectively. For both genders the standardized prevalence of ISH, IDH, and SDH was higher in Yi migrants than Yi farmers. Overweight and obese Yi men and women had a higher risk for IDH and SDH (P〈O.002) than non-overweight/obese individuals. However, an association of overweight or obesity with ISH was observed only in men. Conclusion Yi migrants have substantially higher proportion of overweight and obese individuals, as well as individuals affected by ISH, IDH, and SDH, than do Yi farmers. Overweight and obesity are significant risk factors for the development of hypertension in Yi people. 展开更多
关键词 Body mass index (BMI) OVERWEIGHT Obesity HYPERTENSION Ethnic Yi MIGRANT China
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部