放牧習性 的英文怎麼說
中文拼音 [fàngmùxíxìng]
放牧習性
英文
grazing behavior-
The diet of the main dominat species of rodents allactaga sibirica in stipa breriflora steppe were studied in lhurihe sunit right banner inher mongolia by stomach content analysis the results showed that : 1. the main diet of allactaga sibirica consisted of green stems and leaves, seeds, roots and withered plants and also consisted of some insects when plant biomass were lowev. 2. ten species of plant were often selected by allactaga sibirica during the different periods allactaga sibirica always selected artemisia frigida, kochia prostrata, heteropappus altaicus, enneapogon borealis, eragrostis poaeoides. 3. the plant diet composition were same at the same period when water content were same but the plant diet compositon were difteren at the ditlenent periods when whater content were different
研究結果表明： 1 .五趾跳鼠的主要食物組成由綠色莖葉、種子、根、枯黃植物組織等組成，在植被生物量較低時期也採食一些昆蟲類食物； 2 .經常採食的植物種類有10種，其中在不同時期均喜食的植物有冷蒿、木地膚、阿爾泰紫菀、冠芒草、小畫眉草等植物； 3 .在水分條件相似的同一時間段內植物性食物組成較穩定，而在水分條件不一致的各時間段內，食物組成比例差異較大； 4 .有較強的幼嫩植物組織選擇和依賴性採食習性，且與放牧家畜存在較強的植物性食物資源競爭，因此是一種對草地植被破壞性和畜牧業危害均較大的鼠種。
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