【摘要】 畜牧业的发展是我国农业发展的一个重要方面,天然牧草是畜牧业的主要物质基础,本文试图对影响牧草和牲畜的地理分布及生物生产力作一初步分析。更多还原

【Abstract】 The livestock husbandry Climate and Characteristics of the steppe in Inner Mongolia are as follows; abundant light energy and sunshine, severely cold and long winter, warmer and short summer,rare annual rainfall and high temperature mostly in summer.Four grass delts of forest-steppe, steppe, desert steppe and desert have been formed according to the regional differentiation of precipitation and temperature.The nutrition value of herbage in the studied area is higher.The height and product of the herbage are relevant to the precipitation during the herbage growth period.It is adequate that catties and horses are grazed in the east of the studied area with great precipitation, sheep in the middle east with medial precipitation, and goats and camels in the westeral part with less precipitation. Grass growth period can be divided into four stages of turning green, grow ing. mature and turning yellow owing to the cyclic change of climate.Therefore, livestock growing can be divided into four stages of reconversion.increasing weight, stable and decreasing weight period.Disaster weather of livestock Husbandry are as follows; drought, snow disaster, strong wind and isand storm.we must plant a great number of trees and grasses and develop water conservancy, canstruct livestock shed and increase the capacity against disasters and to prevent the lirestock from illness. Thus, the stable development of livestock husbandry can de ensured.更多还原