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冷蒿形态对放牧强度的响应策略

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通过对不同放牧强度下冷蒿植株高度与叶片微形态特征的对比,研究其形态对放牧的响应策略.结果显示:不同放牧强度下冷蒿的高度及叶片微型态特征存在显著差异;随着放牧强度的增加,冷蒿生长由斜倚生长向匍匐生长转变,生殖枝数目减少或消失,叶表皮纹饰凸起和气孔下陷程度增加.
Responses Strategy of Morphology of Artemisia frigida to Grazing Intensity
The experiment investigated plant height and leaf epidermis micro-morphology of Artemisia frigida to study the responses strategy of morphology of Artemisia frigida to grazing intensity under different grazing intensity.The results indicated that the characteristics of height and leaf epidermis micromorphology of A.frigida were significantly different in different grazing intensity.The growth form of A.frigida changed from leaning to creeping,the reproductive branches reduced or disappeared,and the leaf epidermal ornamentation bump and the stomata subsidence extent with the grazing intensity increased.

Artemisia frigidaGrazing intensityMorphologyResponse strategy

薛艳林、殷国梅、张英俊、刘永志、田彦军、孙启忠

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中国农业科学院草原研究所,内蒙古呼和浩特010010

内蒙古自治区农牧业科学院,内蒙古呼和浩特010031

中国农业大学草地研究所,北京100193

内蒙古鄂托克旗草原工作站,内蒙古016199

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冷蒿 放牧强度 形态 响应策略

内蒙古自然科学基金内蒙古自治区农牧业科学院青年基金内蒙古自治区农牧业科学院青年基金国家公益性行业科技专项国家公益性行业科技专项国家牧草产业体系

2011BS04042014QNJJM042013QNJJM10201303059201203042CARS-35-27

2014

中国草地学报
中国农业科学院草原研究所 中国草地学会

中国草地学报

CSTPCDCSCD北大核心
影响因子:1.347
ISSN:1673-5021
年,卷(期):2014.36(6)
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