摘要
在河北省承德鱼儿山牧场研究不同放牧强度对草地土壤理化性质的影响 ,研究结果表明 :随放牧强度增加 ,土壤表层 0～ 10cm容重增大 ,土壤变得紧实 ,渗透性降低 ;土壤全磷和速效磷含量降低 ,而全氮和速效钾含量增加。
The effects of the different grazing intensity on soil physics and chemical properties were researched on the Yuershan farm of Hebei province. The results were: The soil bulk of 0～10cm surface layer was increased and the soil infiltration was declined with increasing the grazing intensities. Total P and available P was also increased, however the total N and available K was decreased with increasing the grazing intensities.
出处
《中国草地》
CSCD
2001年第4期41-47,共7页
Grassland of China
基金
国家科技攻关专题 (96 - 0 16 - 0 1- 0 4)资助
