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中国农学通报 ›› 2018, Vol. 34 ›› Issue (18): 77-83.doi: 10.11924/j.issn.1000-6850.casb18020020

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

山西亚高山草甸植物群落物种多样性的空间分异

王誉陶,毕玉婷,王 倩,郝海超,徐满厚   

  1. 太原师范学院地理科学学院,太原师范学院地理科学学院,太原师范学院地理科学学院,太原师范学院地理科学学院,太原师范学院地理科学学院
  • 收稿日期:2018-02-03 修回日期:2018-05-19 接受日期:2018-03-23 出版日期:2018-06-26 发布日期:2018-06-26
  • 通讯作者: 徐满厚
  • 基金资助:
    山西省应用基础研究计划面上青年基金项目“气候变暖背景下吕梁山生态脆弱区植被多样性的空间分异”(2016021136);山西省高等学校 科技创新项目“吕梁山亚高山草甸植被多样性及对气候变暖响应”(2016169);山西省高等学校重点学科建设项目“山西省连片特困区生态环境质量 与社会经济发展研究——以吕梁山区为例”(晋教研[2016] 4 号);山西省大学生创新创业训练项目“吕梁山生态脆弱区草本植物生物量的海拔梯度 格局”(2017374);太原师范学院“1331 工程”建设计划项目“吕梁山区生态-经济协同发展重点创新团队”和“连片特困区生态-经济协同发展重点实验 室”(院办字[2017]34 号)。

Spatial Differentiation of Plant Species Diversity in Subalpine Meadows in Shanxi Province

  • Received:2018-02-03 Revised:2018-05-19 Accepted:2018-03-23 Online:2018-06-26 Published:2018-06-26

摘要: 为加强对山西亚高山草甸的有效保护和合理开发,防止草甸退化,本研究以北部的五台山、中部的吕梁山、南部的中条山为研究区,在水平方向和垂直方向进行草甸物种多样性调查,探讨山西亚高山草甸物种多样性随经度、纬度、海拔的变异规律。结果表明:(1)在水平方向上,草甸物种多样性呈现中等经度高值、中低经度低值、中低纬度低值的分布格局,其中Simpson指数和Margalef指数随经纬度具显著差异(P<0.05),Pielou指数无显著差异(P>0.05),Shannon指数随经度差异显著(P<0.05)而随纬度差异不显著(P>0.05)。(2)在垂直方向上,Simpson指数和Margalef指数呈现中海拔高值、高海拔低值的分布格局(P<0.05),Pielou指数和Shannon指数随海拔升高趋于减小(P>0.05)。因此,山西亚高山草甸物种多样性符合“中间高度膨胀”的空间分异规律。

关键词: 甘蓝型油菜, 甘蓝型油菜, B-box型锌指蛋白, BnSTO, 表达, 非生物逆境

Abstract: The paper aims to strengthen the effective protection and rational exploitation of subalpine meadows in Shanxi, and thus prevent their degradation. The authors took Wutai Mountain in the northern part, Lvliang Mountain in the middle part and Zhongtiao Mountain in the southern part of Shanxi as the study areas, and investigated the species diversity of subalpine meadow communities in horizontal and vertical directions to explore the variability of species diversity of subalpine meadows with longitude, latitude and altitude in Shanxi. The results showed that: (1) in the horizontal pattern, species diversity indices had a high value in medium longitude, together with low values in low and middle longitudes and latitudes, respectively; in addition, the Simpson index and Margalef index had significant differences with variations of latitudes and longitudes (P <0.05), however, the Pielou index had no significant difference with latitudes and longitudes (P >0.05), the Shannon index was significantly different with longitudes (P <0.05) and had no significant difference with latitudes (P >0.05); (2) in the vertical pattern, the Simpson index and Margalef index showed high and low values at middle and high altitudes, respectively (P <0.05), the Pielou index and Shannon index trended to decrease with altitudes (P >0.05). Therefore, the species diversity of subalpine meadows conforms to the pattern of“mid-domain effect”in the spatial differentiation in Shanxi.