湖南舜皇山野生红豆杉的物种多样性及分布格局 |
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引用本文: | 陈祝青. 湖南舜皇山野生红豆杉的物种多样性及分布格局[J]. 中国农学通报, 2019, 35(20): 29-32. DOI: 10.11924/j.issn.1000-6850.casb18100072 |
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作者姓名: | 陈祝青 |
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作者单位: | 湖南省祁阳县林业局 |
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基金项目: | 湖南省林业科技创新计划项目“湖南省衡阳市紫色土丘陵坡地植被恢复研究与示范”(XLK201341)。 |
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摘 要: | 通过对湖南舜皇山野生红豆杉所分布的红豆杉+红椿群落(甲)、红豆杉+白楠群落(乙)、红豆杉-朱砂根+苦糖果群落(丙)与红豆杉-大叶冷水花+大叶贯众群落(丁)群落物种多样性及分布格局进行调查与分析,得出以下主要结论:(1)Patrick丰富度指数(R)的大小顺序为丁>丙>甲(=乙)(P<0.05),Simpson多样性指数(D)为甲(≈乙)>丁>丙(P<0.05),Shannon-Wiener多样性指数(H)为丙(≈丁)>甲(≈乙)(P<0.05),Pielou均匀度指数(E)为甲(≈乙)>丙(≈丁)(P<0.05);(2)甲、乙两群落呈均匀分布格局,而丙、丁两群落呈聚集分布格局。聚集强度(K)、聚集指数(I)、平均拥挤度(m*)与格林指数(GI)的大小顺序均为丙(≈丁)>甲(≈乙)(P<0.05)。该结论将丰富植物生态学内容,为野生红豆杉的保护提供理论依据。
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收稿时间: | 2018-10-21 |
Wildlife Lagerstroemia indica in Shunhuang Mountain,Hunan: Species Diversity and Distribution Pattern |
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Abstract: | By investigating and analyzing the bio-diversity and distribution patterns of Lagerstroemia indica+Toona ciliate community(Jia), Lagerstroemia indica+ Lagerstroemia indica+Phoebe neurantha community(Yi), Lagerstroemia indica-Ardisia crenata+Lonicera fragrantissima community(Bing) and Lagerstroemia indica-Pilea hookeriana+Cyrtomium macrophyllum community(Ding), we attained the main results as follows: (1)In Jia, Yi, Bing and Ding communities, Patrick richness index(R) followed the order of Ding>Bing>Jia(=Yi)(P<0.05), Simpson bio-diversity index(D) followed the order of Jia(≈Yi)>Ding>Bing(P<0.05), Shannon-Wiener bio-diversity index(H) followed the order of Bing(≈Ding)>Jia(≈Yi)(P<0.05), Pielou evenness index(E) followed the order of Jia(≈Yi)>Bing(≈Ding)(P<0.05); (2)Jia or Yi communities took on evenness distribution pattern, and Bing or Ding communities took on clump distribution pattern. Clump intensity(K), Clump index(I), Mean crowding(m*) and Green index(GI) were followed the order as Bing(≈Ding)>Jia(≈Yi)(P<0.05)。This study will to some degree enrich and broaden the vegetation ecology, and provide theoretical basis for the protecting of wildlife Lagerstroemia indica. |
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