According to the principle of bio-diversity conservation,the change pattern of the species diversity in gaps of different sizes and developmental stages in Castanopsis kawakamii forest was measured and analyzed by mea...According to the principle of bio-diversity conservation,the change pattern of the species diversity in gaps of different sizes and developmental stages in Castanopsis kawakamii forest was measured and analyzed by means of Margalef index,Shannon-Wiener index,Pielou index,Simpson index and Evenness dominance diversity index.The results showed that the general trends of species richness index were correspondent with those of species diversity index,evenness dominance diversity index and species evenness index,which were in opposite to those of ecological dominance index.The species diversity influence in shrub layer by gaps of different sizes and developmental stages was the strongest, the one in arbor layer was stronger,and the one in herb layer was the weakest.The species diversity index (Shannon-Wiener index) in ardor layer reached the highest in the gaps with a size of 80～160m 2,and occurred a higher peak in those with a size of 240～320m 2 again,and became lower in the gaps of above 400m 2.Diversity index in shrub layer reached the lowest in the gaps with a size of 80m 2,the highest in those with a size of >200m 2,and occurred a higher peak in those with a size of 80～160m 2.Diversity index in herb layer reached the lowest in the gaps with a size of 80～160m 2,the highest in those with a size of >400m 2.Diversity index in arbor layer showed the high change trend in the middle period and the low one in two periods following the ages of gaps,which the index were the highest in the gaps about 40～50 years,and the lowest in the first 10 years after gap formation.The change trend of diversity index in shrub layer was the most evident,which formed a peak value in the gap ages of about 10～20 years and reached the lowest in 40～50 years of gap formation.The change trend of diversity index in herb layer increased following the ages of gaps formation,and diversity index in herb layer reached the highest after 50 years of gap formation and the lowest in the first 10 years after gap formation.Gap formation can in展开更多
目的:调查北京市社区医务人员精神卫生知识知晓度(Mental health literacy,MHL),为提高基层医务人员MHL提供依据。方法:选取北京市社区卫生服务中心非精神卫生防治医务人员(简称非精防)197名,工作年限(14.1±10.2)年。社区精神卫生...目的:调查北京市社区医务人员精神卫生知识知晓度(Mental health literacy,MHL),为提高基层医务人员MHL提供依据。方法:选取北京市社区卫生服务中心非精神卫生防治医务人员(简称非精防)197名,工作年限(14.1±10.2)年。社区精神卫生防治医务人员(简称精防)131名,从事精防工作年限(6.5±6.4)年。采用卫生部办公厅印发的精神卫生知识问卷和自编案例调查表进行调查。结果:两组精神卫生知识平均知晓率都>80%(87.6%,91.6%),第2(75.6%,88.6%)、6(74.1%,62.6%)、19(36.5%,65.6%)、20(74.1%,86.2%)条目有正确率<80%,两组差异有统计学意义(P<0.05)。在案例调查表中,非精防医务人员疾病识别处理能力平均正确率低于精防医务人员,差异有统计学意义(64.6%vs.75.9%,P<0.001),两组均是抑郁症正确率最低,总体之间有统计学意义(P<0.001)。Logistic回归分析提示工作年限与识别处理能力是负关联(OR=0.97,P<0.05),女性识别处理能力更强(OR=2.02,P<0.05),精防医务人员识别处理能力更强(OR=7.79,P<0.001)。结论:本研究提示,社区医务人员对于精神卫生知识知晓率已经达到国家规定的标准,但是部分知识点需要加强。社区医务人员对于常见精神疾病的识别处理能力需提高。展开更多
文摘According to the principle of bio-diversity conservation,the change pattern of the species diversity in gaps of different sizes and developmental stages in Castanopsis kawakamii forest was measured and analyzed by means of Margalef index,Shannon-Wiener index,Pielou index,Simpson index and Evenness dominance diversity index.The results showed that the general trends of species richness index were correspondent with those of species diversity index,evenness dominance diversity index and species evenness index,which were in opposite to those of ecological dominance index.The species diversity influence in shrub layer by gaps of different sizes and developmental stages was the strongest, the one in arbor layer was stronger,and the one in herb layer was the weakest.The species diversity index (Shannon-Wiener index) in ardor layer reached the highest in the gaps with a size of 80～160m 2,and occurred a higher peak in those with a size of 240～320m 2 again,and became lower in the gaps of above 400m 2.Diversity index in shrub layer reached the lowest in the gaps with a size of 80m 2,the highest in those with a size of >200m 2,and occurred a higher peak in those with a size of 80～160m 2.Diversity index in herb layer reached the lowest in the gaps with a size of 80～160m 2,the highest in those with a size of >400m 2.Diversity index in arbor layer showed the high change trend in the middle period and the low one in two periods following the ages of gaps,which the index were the highest in the gaps about 40～50 years,and the lowest in the first 10 years after gap formation.The change trend of diversity index in shrub layer was the most evident,which formed a peak value in the gap ages of about 10～20 years and reached the lowest in 40～50 years of gap formation.The change trend of diversity index in herb layer increased following the ages of gaps formation,and diversity index in herb layer reached the highest after 50 years of gap formation and the lowest in the first 10 years after gap formation.Gap formation can in
文摘目的:调查北京市社区医务人员精神卫生知识知晓度(Mental health literacy,MHL),为提高基层医务人员MHL提供依据。方法:选取北京市社区卫生服务中心非精神卫生防治医务人员(简称非精防)197名,工作年限(14.1±10.2)年。社区精神卫生防治医务人员(简称精防)131名,从事精防工作年限(6.5±6.4)年。采用卫生部办公厅印发的精神卫生知识问卷和自编案例调查表进行调查。结果:两组精神卫生知识平均知晓率都>80%(87.6%,91.6%),第2(75.6%,88.6%)、6(74.1%,62.6%)、19(36.5%,65.6%)、20(74.1%,86.2%)条目有正确率<80%,两组差异有统计学意义(P<0.05)。在案例调查表中,非精防医务人员疾病识别处理能力平均正确率低于精防医务人员,差异有统计学意义(64.6%vs.75.9%,P<0.001),两组均是抑郁症正确率最低,总体之间有统计学意义(P<0.001)。Logistic回归分析提示工作年限与识别处理能力是负关联(OR=0.97,P<0.05),女性识别处理能力更强(OR=2.02,P<0.05),精防医务人员识别处理能力更强(OR=7.79,P<0.001)。结论:本研究提示,社区医务人员对于精神卫生知识知晓率已经达到国家规定的标准,但是部分知识点需要加强。社区医务人员对于常见精神疾病的识别处理能力需提高。
