在短花针茅荒漠草原对比研究了划区轮牧和自由放牧两种放牧制度对草地土壤理化性状的影响。
The comparative studies on the influence of rotational grazing and continuous grazing on the physical and chemical characters of soil was conducted in desert steppe of Stipa breviflora.
我国岩画主要分布在北方干旱荒漠草原区。
Drawing on rock is distributed mainly over the mountain rock of dry-grassland and desert-grassland area in north-China.
我国岩画主要分布在北方干旱荒漠草原区。
Drawing on rock is distributed mainly over the mountain rock of dry-grassland and desert-grassland area in north-China.
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