| 外源元素添加对金沙江干热河谷植物群落结构和物种多样性的影响 |
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| 引用本文： | 樊 博,闫帮国,史亮涛,潘志贤,岳学文,王春雪,李建查.外源元素添加对金沙江干热河谷植物群落结构和物种多样性的影响[J].热带作物学报,2016,36(10):102-108. |
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| 作者姓名： | 樊 博 闫帮国 史亮涛 潘志贤 岳学文 王春雪 李建查 |
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| 作者单位： | 1 云南省农业科学院热区生态农业研究所 云南元谋 651300;1 云南省农业科学院热区生态农业研究所 云南元谋 651300；2 中国科学院水利部成都山地灾害与环境研究所 四川成都 610041；3 中国科学院大学 北京 100049;1 云南省农业科学院热区生态农业研究所 云南元谋 651300;1 云南省农业科学院热区生态农业研究所 云南元谋 651300;1 云南省农业科学院热区生态农业研究所 云南元谋 651300;1 云南省农业科学院热区生态农业研究所 云南元谋 651300;1 云南省农业科学院热区生态农业研究所 云南元谋 651300 |
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| 摘 要： | 由于干热河谷地区生态环境相当脆弱，为了解元素添加对干热河谷植被群落结构的影响，试验选取了元谋干热河谷地段来研究元素添加对植物群落结构及物种多样性的影响。研究结果表明，添加不同元素后对植物群落结构参数产生了不同影响。不同元素添加后降低了双子叶植物群落多样性，而添加不同元素增加了单子叶植物的多样性，尤其是添加了K元素对单子叶植物群落的Simpson指数、Shannon-Wiener指数、Pielou均匀度、McIntosh指数起到了促进作用，与CK相比分别提高了2.28%、2.41%、2.37%、3.73%。
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| 关 键 词： | 干热河谷 生物量 植物群落结构 物种多样性 相关性 |
Effects of Exogenous Elements on Plant Community Structure and Species Diversity in Dry-hot Valley of Jinshajiang |
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| Institution: | 1 Institute of Tropical Eco-agricultural Sciences, YAAS, Yuanmou, Yunnan 651300;1 Institute of Tropical Eco-agricultural Sciences, YAAS, Yuanmou, Yunnan 651300; 2 Institute of Mountain Hazards and Environment, Chinese Academy of Sciences and Ministry of Water Resources, Chengdu, Sichuan 610041; 3 University of Chinese Academy of Scie;1 Institute of Tropical Eco-agricultural Sciences, YAAS, Yuanmou, Yunnan 651300;1 Institute of Tropical Eco-agricultural Sciences, YAAS, Yuanmou, Yunnan 651300;1 Institute of Tropical Eco-agricultural Sciences, YAAS, Yuanmou, Yunnan 651300;1 Institute of Tropical Eco-agricultural Sciences, YAAS, Yuanmou, Yunnan 651300;1 Institute of Tropical Eco-agricultural Sciences, YAAS, Yuanmou, Yunnan 651300 |
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| Abstract: | The ecological environment in the dry-hot valley area was very vulnerable. Dry-hot valley in Yuanmou was selected to observe the effects of additional elements on the vegetation community structure to understand effects of exogenous elements on vegetation community structure in dry-hot valleys. The results showed that different elements had different effects on plant community structure parameters. The diversity of dicotyledon community decreased and the diversity of monocotyledon increased after different elements were added. K element promoted the Simpson index, Shannon-Wiener index, Pielou evenness, and McIntosh index of the monocotyledon community by 2.28%, 2.41%, 2.37% and 3.73%, respectively, as compared to the CK. The aboveground biomass of the monocotyledon was greater than that of the dicotyledon in 24 experimental plots. Meanwhile, the relationship between nutrient addition and plant diversity was negatively correlated. This study can be used to control plant diversity and provide technical guidance for ecological restoration. |
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| Keywords: | Dry-hot valley biomass plant community structure species diversity correlation |
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