干旱区生态环境知识资源中心(Arid): 短花针茅草原不同放牧制度的植物补偿性生长

Arid

	短花针茅草原不同放牧制度的植物补偿性生长
其他题名	Plant Compensatory Growth Under Different Grazing Systems In Stipa Breviflora Desert Steppe
	刘艳; 卫智军; 杨静; 杨尚明
来源期刊	中国草地
ISSN	1000-6311
出版年	2004
卷号	26 期号:3 页码:18-23
中文摘要	2000～2002年通过对内蒙古短花针茅荒漠草原在不同放牧制度下植物净初级生长量和家畜采食率的研究,探讨了划区轮牧制度和自由放牧制度草地植物的补偿性生长.结果表明:实验期间,不同放牧制度的草群净初级生长量与对照区的差异不显著(P>0.05),表现为等补偿性生长;主要植物种群的净初级生长量在不同放牧处理区存在着差异,从而表现出不同的补偿性生长趋势;草群和主要植物种群的采食率自由放牧区高于划区轮牧区.试验还表明,生长季节降雨量状况也是影响植物补偿性生长的关键因子,植物的净初级生长量随降雨量的增加而增加
英文摘要	Experiments were conducted during 2000 and 2002 growth season to investi-gate plant growth and animal intake in Stipa breviflora desert steppe of Inner Mongoli-a. Plant compensatory growths were measured under rotational grazing and continuous grazing systems. Results showed that no significant difference was found in plant prima-ry productivity between the two grazing systems and the closed control(p>0.05), indi-cating an equal compensatory growth. However, differences in compensatory growth were found in main plant populations, in which net primary productions were different in the two grazing systems. Grazing intakes on the sward and on the main plant popula-tions were higher in continuous grazing than in rotational grazing. Precipitation in grow-ing season was found being a key factor affecting plant compensatory growth. Net pri-mary production was increased with the increase of precipitation.
中文关键词	放牧制度 ; 净初级生长量 ; 采食率 ; 补偿生长 ; 降雨量
英文关键词	Grazing system Net primary production Aanimal intake Compensatory growth Precipitation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:1600121
来源机构	内蒙古农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/205681
作者单位	内蒙古农业大学生态环境学院, 呼和浩特, 内蒙古 010019, 中国
推荐引用方式 GB/T 7714	刘艳,卫智军,杨静,等. 短花针茅草原不同放牧制度的植物补偿性生长[J]. 内蒙古农业大学,2004,26(3):18-23.
APA	刘艳,卫智军,杨静,&杨尚明.(2004).短花针茅草原不同放牧制度的植物补偿性生长.中国草地,26(3),18-23.
MLA	刘艳,et al."短花针茅草原不同放牧制度的植物补偿性生长".中国草地 26.3(2004):18-23.