新疆农业科学2012，Vol.49Issue(8)：1503-1508,6.DOI:10.6048/j.issn.1001-4330.2012.08.021
不同利用方式下春秋草地植物群落特征及土壤养分的变化
Change of Plant Community Character and Soil Nutrients under Different Utilization Modes of Spring-autumn Steppe
摘要
Abstract
[Objective]Comparing with the effects of utilization modes on the grass community characteristics and soil nutrients. To provide a scientific basis for reasonable utilization of grassland. [Method]The four utilization modes of spring - autumn steppe were determined by investigation in Zeketai Town, Xinyuan County , which are mowing grass, normal grazing, sectional grazing and rotational grazing. The objective is to study the effects of utilization modes on the community characteristics and soil nutrients. [Result] The high soil organic matter, available N and Olsen - P contents can be maintained by grazing rather than mowing. And the organic matter content of normal grazing and rotational grazing is higher than that of sectional grazing place, the contents of available K and Olsen - P of sectional grazing and rotational grazing areas are higher than those of normal grazing. The plant species of sectional grazing and rotational grazing are the highest, and the aboveground biomass of rotational grazing is the highest. [Conclusion] Considering the community characteristics and soil nutrients, grazing modes are superior to mowing grass in maintaining soil nutrients, which im-prove community quantity characteristics and productivity. And rotational grazing is appropriate mode of production for that place, and sectional grazing has potential advantage over long - term freedom grazing, which is disadvantageous to grassland sustainable development.关键词
春秋草地/利用方式/植物群落/土壤养分Key words
spring - autumn grassland/ utilization mode/ plant community/ soil nutrients分类
农业科技引用本文复制引用
范燕敏,武红旗,靳瑰丽,刘伟,阿德列提..不同利用方式下春秋草地植物群落特征及土壤养分的变化[J].新疆农业科学,2012,49(8):1503-1508,6.基金项目
GEF项目"放牧利用与草原退化之间关系的研究" （）
新疆维吾尔自治区土壤学重点学科基金 （）
