文献类型：期刊文献

中文题名：放牧对黄土高原丘陵沟壑区林草地土壤特性的影响

英文题名：Effects of Grazing on Soil Physical and Chemical Properties of Grassland and Forest Floor in Hilly and Gully Regions on the Loess Plateau

作者：范春梅[1] 廖超英[1] 孙长忠[2] 许喜明[3] 李培玉[4]

第一作者：范春梅

机构：[1]西北农林科技大学资源环境学院,陕西杨凌712100;[2]中国林科院华北林业实验中心,北京102300;[3]西北农林科技大学林学院,陕西杨凌712100;[4]云南省曲靖市水利电力勘测设计研究院,云南曲靖655000

年份：2006

卷号：15

期号：1

起止页码：24-28

中文期刊名：西北农业学报

外文期刊名：Acta Agriculturae Boreali-occidentalis Sinica

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD_E2011_2012】；

基金：国家自然科学基金资助(40171061)

语种：中文

中文关键词：放牧林草地;土壤理化性状;黄土高原;丘陵沟壑区

外文关键词：Grazing ground; Soil physical and chemical property; Loess plateau; Hilly and Gully regions

分类号：S812.2

摘要：在黄土高原丘陵沟壑区——山西偏关县通过放牧试验研究了草地和柠条林地在不同放牧强度、不同放牧畜种条件下表层土（0～10cm）的物理和化学性质。结果表明，放牧强度直接影响着草地和柠条林地土壤的物理结构。随放牧强度的增加，牲畜对土壤的践踏加剧，导致土壤紧实度增加，容重上升，含水量下降。草地和柠条林地的水解氮含量都随放牧强度的增加而增加，速效钾含量则都表现为中度放牧〉重度放牧〉轻度放牧；速效磷的含量草地随放牧强度的增加而减少，柠条林地的速效磷含量则随放牧强度的增加而增加。从畜牧羊种选择来看，绵羊相对于山羊来说对放牧地践踏较轻，土壤容重较小，土壤含水量、水解氮、速效磷和速效钾含量则较高。
The effects of different grazing intensity and different types of livestock on physical and chemical characteristics of surface （0～10 cm） soil for grazing grassland and Caragana korshinkii kom were studied at hilly-gully regions on the loess plateau of pianguan, Shanxi province. The results showed that grazing intensity directly influenced the physical structure of soil for grazing grassland and Caragana korshinkii korn. The soil bulk density increased along with the increase of grazing intensity,while water content was decreased. The contents of hydrolyzable nitrogen in the soil for grazing grassland and grazing Caragana korshinkii korn increased with the increase of grazing intensity, while the contents of quick available potassium in the soil for grazing grassland and grazing Caragana korshinkii korn were medium grazed paddocks 〉 heavy grazed paddocks 〉 light grazed paddocks. The contents of quick available phosphorus in the soil for grazing grassland decreased with the increase of grazing intensity, while the contents of quick available phosphorus in the soil of grazing Caragana korshinkii kom increased with the increase of grazing intensity. Compared with goat selected as grazing livestock, sheep had less light of effect on trampling and had less small soil bulk density, also water content, the contents of hydrolyzable nitrogen, quick available phosphorus and quick available potassium of the grazing land under sheep is higher than under goat.