干旱区生态环境知识资源中心(Arid): 绢蒿荒漠草地两种主要植物的生态化学计量特征分析

Arid

	绢蒿荒漠草地两种主要植物的生态化学计量特征分析
其他题名	Study on Ecological Stoichiometry of Two Plants in Seriphidium transiliense Desert Grassland
	范燕敏; 武红旗; 侯艳娜; 艾科拜尔·安外尔; 古丽包斯旦·艾尔肯
来源期刊	新疆农业科学
ISSN	1001-4330
出版年	2018
卷号	55 期号:12 页码:2305-2311
中文摘要	【目的】研究退化伊犁绢蒿荒漠草地恢复后,主要植物的生态化学计量特征的变化,为干旱区草地恢复提供理论依据。【方法】以该草地的建群种伊犁绢蒿(Seriphidium transiliense)和伴生种木地肤(Kochia prostrata)为对象,分析两种植物的C、N、P、K含量及计量比以及放牧和封育条件下,两种植物的生态化学计量特征,研究两种植物的养分利用策略以及封育对两种植物的生态化学计量特征的影响。【结果】伊犁绢蒿的P(0.82 g/kg)极显著高于木地肤的P(0.58 g/kg),伊犁绢蒿的N(15.11 g/kg) 、K(13.06 g/kg)含量和N/P(22.46)极显著低于木地肤的N(25.14 g/kg) 、K(21.17 g/kg)含量和N/P(43.75) 。封育改善了荒漠草地植物的生长环境,但与放牧相比,伊犁绢蒿与木地肤的C、N、P、K含量及元素计量比变化不显著。【结论】伊犁绢蒿与木地肤的养分利用策略不同,伊犁绢蒿以吸收利用P为主,木地肤以吸收利用N和K为主,伊犁绢蒿的生长率高于木地肤。封育对荒漠草地两种植物的生态化学计量特征影响不显著。
英文摘要	【Objective】To study the changes of the ecological stoichiometry of the major plants in the restoration of the degraded Seriphidium transiliense desert grassland in the hope providing the theoretical basis for the grassland restoration in the arid region.【Method】S.transiliense and Kochia prostrata in desert grassland were taken as the research objects to study the nutrient utilization strategies of the two plants and the effects of enclosure on the eco-stoichiometric characteristics of the two plants,the contents of C,N,P,K and stoichiometric ratios were analyzed,and the eco-stoichiometric characteristics were compared under grazing and enclosure conditions.【Result】The P (0.82 g/kg) content of S.transiliense was significantly higher than that of K.prostrata (0.58 g/kg),but the N (15.11 g/kg) and K (13.06 g/kg) contents and N/P (22.46) of S.transiliense were significantly lower than thaose of K.prostrata N (25.14 g/kg),K (21.17 g/kg) and N/P (43.75) (P <0.01).Enclosure improved the environment of desert grassland,but compared with grazing,the C,N,P,K contents and stoichiometric ratios of the two plants were not significant.【Conclusion】The nutrient utilization strategies of S.transiliense and K.prostrata are different.S.transiliense mainly absorbs P,while K.prostrata mainly absorbs N and K.The growth rate of S.transiliense is higher than that of K.prostrata.The eco-stoichiometric characteristics of the two plants are not significantly affected by enclosure.
中文关键词	伊犁绢蒿 ; 木地肤 ; 生态化学计量特征 ; 养分利用策略
英文关键词	YiliSeriphidium transiliense Kochia prostrata ecological stoichiometry characteristics nutrient utilization strategy
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:6472373
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/2XILL650/238542
作者单位	新疆农业大学草业与环境科学学院, 新疆土壤与植物生态过程重点实验室, 乌鲁木齐, 新疆 830052, 中国
推荐引用方式 GB/T 7714	范燕敏,武红旗,侯艳娜,等. 绢蒿荒漠草地两种主要植物的生态化学计量特征分析[J]. 新疆农业大学,2018,55(12):2305-2311.
APA	范燕敏,武红旗,侯艳娜,艾科拜尔·安外尔,&古丽包斯旦·艾尔肯.(2018).绢蒿荒漠草地两种主要植物的生态化学计量特征分析.新疆农业科学,55(12),2305-2311.
MLA	范燕敏,et al."绢蒿荒漠草地两种主要植物的生态化学计量特征分析".新疆农业科学 55.12(2018):2305-2311.