Morphological and reproductive response of Caragana microphylla to different stocking rates

NWIPB OpenIR

	Morphological and reproductive response of Caragana microphylla to different stocking rates
	Zhang, Z. ; Wang, S. -P. ; Nyren, P. ; Jiang, G. -M.
	2006-12-01
发表期刊	JOURNAL OF ARID ENVIRONMENTS ; Zhang Z, Wang SP, Nyren P , Jiang GM. Morphological and reproductive response of Caragana microphylla to different stocking rates.JOURNAL OF ARID ENVIRONMENTS,2006,67(4):671-677
摘要	Understanding the effect on host plants of defending against herbivores is important in grazing ecology and grassland management. In this study, the morphological and reproductive responses of Caragana microphylla Lam. to grazing sheep were investigated using a 15-year grazing experiment with six stocking rates in the Inner Mongolia steppe of China. Plant height, rachis length, leaflet size, and number of pods decreased significantly, whereas spine density and length increased significantly with increased stocking rate. Significant negative correlations were observed between production of vegetative and reproductive organs and defensive organs, indicating that it is costly for C. microphylla to defend against herbivores and that morphological miniaturization and a tradeoff between production and defense were main responses of C. microphylla to herbivores. (c) 2006 Elsevier Ltd. All rights reserved.; Understanding the effect on host plants of defending against herbivores is important in grazing ecology and grassland management. In this study, the morphological and reproductive responses of Caragana microphylla Lam. to grazing sheep were investigated using a 15-year grazing experiment with six stocking rates in the Inner Mongolia steppe of China. Plant height, rachis length, leaflet size, and number of pods decreased significantly, whereas spine density and length increased significantly with increased stocking rate. Significant negative correlations were observed between production of vegetative and reproductive organs and defensive organs, indicating that it is costly for C. microphylla to defend against herbivores and that morphological miniaturization and a tradeoff between production and defense were main responses of C. microphylla to herbivores. (c) 2006 Elsevier Ltd. All rights reserved.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/30430
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Zhang, Z.,Wang, S. -P.,Nyren, P.,et al. Morphological and reproductive response of Caragana microphylla to different stocking rates[J]. JOURNAL OF ARID ENVIRONMENTS, Zhang Z, Wang SP, Nyren P , Jiang GM. Morphological and reproductive response of Caragana microphylla to different stocking rates.JOURNAL OF ARID ENVIRONMENTS,2006,67(4):671-677,2006.
APA	Zhang, Z.,Wang, S. -P.,Nyren, P.,&Jiang, G. -M..(2006).Morphological and reproductive response of Caragana microphylla to different stocking rates.JOURNAL OF ARID ENVIRONMENTS.
MLA	Zhang, Z.,et al."Morphological and reproductive response of Caragana microphylla to different stocking rates".JOURNAL OF ARID ENVIRONMENTS (2006).