云南省人工草地退化原因分析及防治措施研究

通过对云南草地退化原因和机理的分析 ,结合云南土壤、气候和草地管理的试验结果 ,提出云南人工草地退化防除措施为 :合理划区轮牧 ,加强草地责任制管理 ;改变传统放牧方式 ,保证草地有机物的良性循环 ;根据不同的草地类型 ,施用适量的长期维持肥 ;及时防除草地恶性杂草

The Causes and Improvement on the Degraded Grassland in Yunnan Province

After analyzing the casues of the degraded grassland based on the soil, climate and pasture management situation in Yunnan, the improvement of the degraded grassland were put forward. Firstly, rotation grazing system should be reasonably developed and the pasture management should be strengthened. Secondly, the traditional grazing methods should be changed to ensure the benign circles of organism . Thirdly, the long term maintenance fertilizer should be used annually according to the pasture types. Fourthly, the toxious weeds should be controled timely.