施肥和放牧对青藏高原高寒草甸物种丰富度的影响
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杨中领, 苏芳龙, 苗原, 钟明星, 肖蕊
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Effects of fertilization and grazing on species richness in an alpine meadow of Qinghai-Xizang Plateau
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YANG Zhong-Ling, SU Fang-Long, MIAO Yuan, ZHONG Ming-Xing, XIAO Rui
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表1 施肥对放牧地和封育地物种高度(2007、2008和2009年的平均值)的影响
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Table 1 Effects of fertilization on species height (the mean of 2007, 2008 and 2009) both in grazed plots and enclosure
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| 物种 Species | 植物高度 Plant height (cm) | 封育
Enclosure | 封育施肥
Enclosure + fertilization | 放牧
Grazing | 放牧施肥
Grazing + fertilization | | 青藏大戟 Euphorbia altotibetica | 10.5 | 19.9 | 6.9 | 7.8 | | 钝裂银莲花 Anemone obtusiloba | 11.4 | 18.4 | 5.4 | 9.2 | | 垂穗披碱草 Elymus nutans | 40.5 | 66.7 | 26.5 | 24.2 | | 莓叶委陵菜Potentilla fragarioids | 11.0 | 12.0 | 6.6 | 6.1 | | 阿尔泰蒲公英Taraxacum altaicum | 6.5 | 15.9 | 7.1 | 7.5 | | 米口袋Gueldenstaedtia verna | 8.7 | 15.1 | 5.5 | 5.8 | | 蓬子菜Galium verum | 14.1 | 25.3 | 6.6 | 9.0 | | 四川嵩草Kobresia setchwanensis | 34.1 | 42.2 | 21.3 | 25.2 | | 马尔康柴胡 Bupleurum malconense | 20.5 | 20.0 | 7.9 | 6.9 | | 冷地早熟禾Poa crymophila | 33.1 | 56.3 | 16.4 | 18.1 | | 钝苞雪莲Saussurea nigrescens | 13.6 | 14.2 | 6.4 | 7.0 | | 高山韭Allium sikkimense | 17.5 | 27.6 | 8.9 | 14.3 | | 菭草Koeleria cristata | 22.7 | 46.3 | 22.5 | 17.0 | | 细叶亚菊Ajania tenuifolia | 12.7 | 20.6 | 8.2 | 5.5 | | 草玉梅Anemone rivularis | 20.0 | 29.2 | 11.9 | 9.9 | | 花苜蓿Medicago ruthenica | 10.1 | 19.0 | 5.5 | 6.7 | | 椭圆叶花锚Halenia elliptica | 20.1 | 19.4 | 9.9 | 8.9 | | 展毛翠雀花 Delphinium kamaonense | 16.0 | 25.1 | 8.0 | 8.2 | | 丝叶毛茛 Ranunculus tanguticusvar.capillaceus | 13.2 | 23.3 | 7.4 | 8.2 | | 乳白香青Anaphalis lactea | 8.1 | 8.6 | 3.6 | 4.8 | | 甘肃棘豆Oxytropis kansuensis | 12.1 | 16.0 | 7.1 | 6.5 | | 大籽蒿Artemisia sieversiana | 17.1 | 34.4 | 6.2 | 10.1 | | 甘肃马先蒿 Pedicularis kansuensis | 15.4 | 21.8 | 7.6 | 5.9 | | 高原毛茛Ranunculus tanguticus | 10.2 | 14.7 | 6.9 | 7.3 | | 芒剪股颖 Agrostis trinii | 21.9 | 39.2 | 15.0 | 18.6 | | 扁蕾Gentianopsis barbata | 19.6 | 25.4 | 15.5 | 16.9 |
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