| 松嫩草原碱化羊草草地放牧空间演替规律的研究 |
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| 引用本文： | 王仁忠 李建东. 松嫩草原碱化羊草草地放牧空间演替规律的研究[J]. 应用生态学报, 1995, 6(3): 277-281 |
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| 作者姓名： | 王仁忠 李建东 |
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| 作者单位： | 东北师范大学国家草地生态工程实验室 |
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| 摘 要： | 研究了不同放牧强度对羊草草地的影响。结果表明，过牧条件下，群落地上、地下生物量分别比较牧阶段下降了６７．９６和７５．００％，羊草种群根茎分蘖数和种子产量下降１．０和３．３％，极牧条件下，土壤有机质和水分含量分别下降到轻牧阶段的２１．１和６６．５％，而碱化度和全盐量却分别增加了１倍和８倍。
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| 关 键 词： | 放牧演替 羊草草地 松嫩草原 |
Grazing succession pattern or alkalized Aneurolepidium chinense grassland on Sougnen plain |
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| .Wang Renzhong and Li Jiandong. Grazing succession pattern or alkalized Aneurolepidium chinense grassland on Sougnen plain[J]. The journal of applied ecology, 1995, 6(3): 277-281 |
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| Authors: | .Wang Renzhong and Li Jiandong |
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| Abstract: | Studies on the effect of different grazing intensities on A. chinense grasslands show that in comparing with light grazing, above-and underground biomass of the community is decreased respectively by 67. 96 and 75. 00%, and tillers number of root stocks and seed production of A. chinease are decreased by 1. 0 and 33X, under overgrazing condition.Under extreme grazing condition, soil organic matter and water content are decreased by 21. 1 and 66. 5%, and the alkalinity and total salt are increased by one and eight times,respectively. |
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| Keywords: | Grazing succession Aneurolepidium chinense grassland Songnen grassland. |
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