渭北旱塬苜蓿和沙打旺生产力对种间竞争的响应

doi:10.11733/j.issn.1007-0435.2008.02.016

›› 2008, Vol. 16 ›› Issue (2): 181-185.DOI: 10.11733/j.issn.1007-0435.2008.02.016

渭北旱塬苜蓿和沙打旺生产力对种间竞争的响应

左胜鹏^1,2, 王会梅¹, 李凤民², 程积民², 夏传俊¹

1. 安徽师范大学, 环境科学学院, 芜湖, 241000;
2. 中国科学院水利部水土保持研究所, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 杨陵, 712100

收稿日期:2007-08-29 修回日期:2007-12-17 出版日期:2008-04-15 发布日期:2008-04-15
通讯作者: 李凤民
作者简介:左胜鹏(1979- ),博士,讲师,主要从事环境生物学教学科研,E-mail:zuoshengpeng@163.com
基金资助:
中国科学院“百人计划”择优支持项目;安徽师范大学博士科研启动专项基金

Primary Productivity Response of Astragalus adsurgens and Medicago Sativa to Interspecific Competition in Weibei Arid Highland on the Loess Plateau of China

ZUO Sheng-peng^1,2, WANG Hui-mei¹, LI Feng-min², CHENG Ji-min², XIA Chuan-jun¹

1. College of Environmental Sciences, Anhui Normal University, Wuhu, Anhui Province 214000, China;
2. State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling, Shaanxi Province 712100, China

Received:2007-08-29 Revised:2007-12-17 Online:2008-04-15 Published:2008-04-15

摘要/Abstract

摘要： 大田条件下采用生态替代试验对沙打旺(Astragalus adsurgens Pall.)和紫花苜蓿(Medicago sativa L.)单播及混播的当年草地进行地上生物量动态及种间竞争的研究。结果表明:单混播苜蓿地上生物量与其绝对生长速率显著大于沙打旺,并且随播种密度升高而增大,3种密度下苜蓿单混播生产力均在2005年6月最高,其中两牧草地上生物量的累积与返青天数均呈显著正相关。不同密度处理下两牧草表现为阶段性的资源共享和资源竞争关系,随密度增大,资源共享程度降低,而资源竞争反之。但中高密度下整个生育期内苜蓿的相对竞争力均高于沙打旺,低密度在返青后开始出现种间竞争关系,随生育期变化竞争增强。混播当年苜蓿竞争力始终大于沙打旺,其中密度效应为两者种间关系调节的重要影响因素。混播中苜蓿生物量与苜蓿对沙打旺的竞争优势为性状互利关系。因此,植物生产力对物种种间关系的积极响应可能为旱生环境中植物生活史对策的重要特征。

关键词: 渭北旱塬, 紫花苜蓿, 沙打旺, 种间竞争, 生产力响应

Abstract: Based on the interactions between life cycle strategy and plant ecological process such as interspecific competition,natural evolution,and artificial selection,it is crucial to determine the possible mechanism involving the mutual adaptation and regulation from species according to ecosystem ecology principles.The dynamics of aboveground biomass and interspecific competition under the monoculture and mixture of Astragalus adsurgens Pall.and Medicago sativa L.were investigated by the replacement series experiment in one-year field trials.The aboveground biomass and the absolute growth rate of M.sativa in monoculture were significantly higher than those of A.adsurgens and increased with the sowing density and positively correlated with the days after returning green.Among the three densities,M.sativa displayed a maximum productivity in June of 2005 irrespective of the monoculture or the mixture.M.sativa and A.adsurgens exhibited a discontinuity in interspecific competition and shared the same resources under different densities.The degree of resource share was negatively correlated with the density,which was contrary to the interspecific competition.During the entire tested periods,M.sativa showed a stronger competency than A.adsurgens under medium and high densities.Under low density,the predominant competition started from the time of returning green and increased with the development stages.The stronger competition of M.sativa in comparison to A.adsurgens was accounted by the density factors andcould be determined by the mutual promotion relationship between productivity and relative growth superiority.Therefore,the response of productivity to interspecific relationship was possibly the main characteristics in the life history of M.sativa and A.adsurgens in arid highland environments of the Loess Plateau in Northern China.

Key words: Weibei arid highland, Astragalus adsurgens Pall., Medicago sativa L., Interspecific competition, Productivity response

中图分类号:

S812

左胜鹏, 王会梅, 李凤民, 程积民, 夏传俊. 渭北旱塬苜蓿和沙打旺生产力对种间竞争的响应[J]. , 2008, 16(2): 181-185.

ZUO Sheng-peng, WANG Hui-mei, LI Feng-min, CHENG Ji-min, XIA Chuan-jun. Primary Productivity Response of Astragalus adsurgens and Medicago Sativa to Interspecific Competition in Weibei Arid Highland on the Loess Plateau of China[J]. , 2008, 16(2): 181-185.

0
/ / 推荐

导出引用管理器 EndNote|Ris|BibTeX

链接本文: https://manu40.magtech.com.cn/Jweb_cdxb/CN/10.11733/j.issn.1007-0435.2008.02.016

https://manu40.magtech.com.cn/Jweb_cdxb/CN/Y2008/V16/I2/181

参考文献

[1] Weiner J.Asymmetric competition in plant populations[J].Trends in Ecology and Evolution,1990,5; 360-364
[2] Robinson R G.Oat-pea or oat-vetch mixtures for forage or seed[J].Agronomy Journal,1960,52(4):546-549
[3] 马春晖,韩建国,李鸿祥,等.一年生混播草地生物量和品质以及种间竞争的动态研究[J].草地学报,1999.7(1):62-71
[4] 沈禹颖,李昀,陆妮.4种牧草种间竞争力和种间关系的研究[J].草业学报,2002,11(3):8-13
[5] De Wit C T.On competition[J].Agricultural Research Re-port,1960,66(8),1-82
[6] Elberse I A M,VanDammeJ M M,vanTienderen P H.Plas-ticity of growth characteristics in wild barley (Hordeum spont-aneum) in response to nutrient limitation[J].Journal of Ecol-ogy,2003,91(3):371-382
[7] 廖允成,韩思明,温晓霞.黄土台塬旱地小麦土壤水分特征及水分利用效率研究[J].中国生态农业学报,2002,10(3):55-58
[8] 张喜英,陈素英,裴冬.秸秆覆盖下的夏玉米蒸散、水分利用效率和作物系数的变化[J].地理科学进展,2002,21(6):583-592
[9] schwinning S,Parsons A J.Analysis of the coexistence mech-anisms for grasses and legumes in grazing systems[J].The Journal oI Ecology,1996,84(6):799-813
[10] Sanderson M A,Elwinger G F.Plant density and environment effects on orchard grass-white clover mixtures[J].Crop Sci-ence,2002,42(6),2055-2063
[11] 欧阳诞生,于徐根,徐桂花,等.播种量与刈割对紫花苜蓿产草量的影响[J].草地学报,2007,15(2):196-198
[12] Harris W.Pasture as an ecosystem[A].In:Langer R H M.ed.Pasture,their ecology and management[C].Auckland.New Zealand:Oxford University press,1990.75-131
[13] Harris W.Formulation of pasture seed mixtures with refer-ence to competition and succession in pastures[A].In:Tom P G,Lazenby A.eds.Competition and succession in pastures[C].Walling'ford.UK:CABI Publishing,2000.149-174
[14] Tilman D.Resource Competition and Community Structure[M].Princeton,Princeton University Press,1982.92-115
[15] 毛凯,周寿荣,王四敏,等.箭管豌豆混播黑麦草生物量和种间竞争的研究[J].草地学报,1997,5(1):8-14

渭北旱塬苜蓿和沙打旺生产力对种间竞争的响应

Primary Productivity Response of Astragalus adsurgens and Medicago Sativa to Interspecific Competition in Weibei Arid Highland on the Loess Plateau of China

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	王静, 刘晓静, 程甜甜, 童长春, 汪雪. 不同氮效率紫花苜蓿叶特征及其产量效应研究[J]. 草地学报, 2021, 29(9): 1941-1949.
[2]	孟宣辰, 马鹏程, 马杰, 段珍, 韩阳阳, 张吉宇. 黄土高原半干旱区紫花苜蓿覆膜垄沟和施肥效应研究[J]. 草地学报, 2021, 29(9): 2098-2106.
[3]	陈雷, 暴雪艳, 郭刚, 霍文婕, 李清宏, 许庆方, 王聪, 刘强. 单宁酸和乳酸菌对紫花苜蓿青贮品质和体外瘤胃发酵的影响[J]. 草地学报, 2021, 29(8): 1853-1858.
[4]	李春萍, 邱轶辉, 夏厚胤, 谭璐娜, 许环宇, 张瀚文, 高景慧. 紫花苜蓿多父本F₁代低蒸腾及产量性状的隶属函数分析[J]. 草地学报, 2021, 29(7): 1416-1422.
[5]	李天琦, 林志玲, 卢轩, 黄佳媛, 杨宁, 沃野, 高凯, 柳小妮, 王显国. 灌溉量对科尔沁沙地紫花苜蓿土壤速效养分分布及淋失的影响[J]. 草地学报, 2021, 29(7): 1454-1461.
[6]	李鹏珍, 赵得琴, 邓波, 杨军, 赵国华, 赵亮. 生物炭与干旱胁迫对接种紫花苜蓿光合效率及生长的影响[J]. 草地学报, 2021, 29(6): 1257-1264.
[7]	李兴龙, 师尚礼, 黄宗昌, 李革革, 吴芳, 张辉辉. 黄土丘陵区不同饲草混播模式对种间关系的影响[J]. 草地学报, 2021, 29(6): 1318-1326.
[8]	王文静, 麻冬梅, 赵丽娟, 马巧利. 2,4-表油菜素内酯对盐胁迫下紫花苜蓿生理指标及根系离子积累的影响[J]. 草地学报, 2021, 29(6): 1363-1368.
[9]	潘新怡, 史昆, 龚攀, 韦宝, 吴欣明, 王赞. 紫花苜蓿花青苷合成的转录组分析[J]. 草地学报, 2021, 29(5): 866-875.
[10]	黄荣, 姚博, 张玉娟, 贾倩英, 李向阳, 张宏, 张振粉. 成团泛菌CQ10脂多糖对紫花苜蓿种子萌发及苗期生长的影响[J]. 草地学报, 2021, 29(5): 965-971.
[11]	潘越, 周冀琼, 郭川, 杨喆, 刘琳, 闫艳红, 赵艳兰, 刘珊, 孙飞达. 丛枝菌根真菌与根瘤菌对3种豆禾混播植物种间互作的影响[J]. 草地学报, 2021, 29(4): 644-654.
[12]	徐洪雨, 甄莉丽, 李钰莹, 董宽虎, 李向林. 低温干旱环境对紫花苜蓿根颈耐寒性的影响[J]. 草地学报, 2021, 29(4): 724-733.
[13]	李满有, 马忠仁, 王斌, 杨雨琦, 沈笑天, 曹立娟, 李小云, 兰剑. 宁夏引黄灌区2个苜蓿品种不同行比混播模式研究[J]. 草地学报, 2021, 29(4): 798-804.
[14]	侯红雁, 申晨, 霍文婕, 刘强, 张拴林, 王聪, 陈雷, 许庆方, 王永新, 王忠豪, 郭刚. 同型发酵乳杆菌对低水分紫花苜蓿青贮发酵品质及体外消化率的影响[J]. 草地学报, 2021, 29(4): 835-841.
[15]	陈德奎, 郭香, 郑明扬, 陈晓阳, 周玮, 张庆. 砂仁精油对紫花苜蓿青贮品质的影响[J]. 草地学报, 2021, 29(4): 855-860.