干旱区生态环境知识资源中心(Arid): 刈割对伊犁绢蒿根系贮藏营养物质的影响

Arid

	刈割对伊犁绢蒿根系贮藏营养物质的影响
其他题名	Imapcts of Mowing on Storage Nutrition Substance in Roots of Seriphidium transiliense
	陈乐宁; 安沙舟; 孙宗玖; 侯钰荣
ISSN	1001-4675
出版年	2009
卷号	26 期号:6 页码:859-864
中文摘要	以新疆蒿类半灌木荒漠草地建群种伊犁绢蒿为材料,探讨刈割强度对其根系贮藏营养物质的影响.结果表明:不同刈割强度间伊犁绢蒿根中可溶性蛋白、可溶性糖、还原糖含量差异显著(p<0.05),且轻度刈割与中度刈割下可溶性蛋白、可溶性糖、还原糖含量相对较高;不同强度刈割后伊犁绢蒿可溶性蛋白、可溶性糖、还原糖的含量随时间的变化先降低后升高,呈"V"型变化.由于刈割后伊犁绢蒿需要利用贮藏的淀粉维持其再生长,淀粉则呈现下降趋势.而研究结果显示,轻度刈割与中度刈割下淀粉含量相对较高,说明轻度及中度刈割强度下伊犁绢蒿根恢复效果较好,适度刈割有利于伊犁绢蒿可溶性蛋白、可溶性糖、还原糖及淀粉的积累,并可促进其再生长.
英文摘要	The sagebrush desert is a representative of spring and autumn pasture in north Xinjiang. However, the most severely overgrazing and grassland degeneration made the sagebrush desert become the bottleneck restricting development of seasonal stock raising in this area. To restore and manage the degraded pasture, some essential issues of plant composition and its storage nutrition nubstance of the pasture need to be resolved. Therefore, in the study, the low hills on the northern slope of the Bogda Mountains (840 ～1 110 m, 87°46′～87°47′ E, 43°49′～43°53′ N), where the most severely overgrazing and grassland degeneration occurred, is chosen as the target study area. Seriphidium transilien, a prominent plant in the community, was selected. The change of storage nutrition substance in Seriphidium transilien’s roots, such as soluble proteins, soluble sugar, deoxidizing sugar and starch,were studied under various defoliation intensities. The results show that contents of soluble protein, soluble sugar and deoxidizing sugar of S. transillense roots are separately significant different under various defoliation intensities (p <0. 05 ) and the contents are higher under the moderate-defoliation and middle-defoliation. The temporal distribution of soluble protein contents, soluble sugar contents and deoxidizing sugar contents of S. transiliense roots emerged in a "V" pattern after the plant was defoliated. Because S. transiliense needs stored starch to maintain its regeneration after defoliating, the starch showed a descending trend, however the contents of starch was relatively higher in the light-defoliation and middle-defoliation. The recovery effect of nutrition substance was better under the moderate-defoliation and middle-defoliation suggesting that the moderate defoliation may be helpful to the accumulation of soluble proteins, soluble sugar, deoxidizing sugar and starch, and promoted regeneration of S. transiliense.
中文关键词	伊犁绢蒿(Seriphidium ; 刈割强度 ; 根系 ; 可溶性蛋白 ; 碳水化合物
英文关键词	transiliense) Seriphidium transiliense defoliation intensities roots soluble protein carbohydrates
语种	中文
国家	中国
收录类别	CSCD
WOS类目	PLANT SCIENCES
WOS研究方向	Plant Sciences
CSCD记录号	CSCD:3793343
来源机构	新疆农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/223637
作者单位	新疆农业大学草业与环境科学学院, 新疆草地资源与生态重点实验室, 乌鲁木齐, 新疆 830052, 中国
推荐引用方式 GB/T 7714	陈乐宁,安沙舟,孙宗玖,等. 刈割对伊犁绢蒿根系贮藏营养物质的影响[J]. 新疆农业大学,2009,26(6):859-864.
APA	陈乐宁,安沙舟,孙宗玖,&侯钰荣.(2009).刈割对伊犁绢蒿根系贮藏营养物质的影响.,26(6),859-864.
MLA	陈乐宁,et al."刈割对伊犁绢蒿根系贮藏营养物质的影响".26.6(2009):859-864.