民勤绿洲边缘沙拐枣群落分布与土壤理化因子关系研究

doi:10.11924/j.issn.1000-6850.casb15010248

中国农学通报 ›› 2015, Vol. 31 ›› Issue (22): 51-56.doi: 10.11924/j.issn.1000-6850.casb15010248

民勤绿洲边缘沙拐枣群落分布与土壤理化因子关系研究

万翔^1,2,王立¹,徐先英²,赵鹏^2,3,张进虎²,唐卫东²,柴成武²

(¹甘肃农业大学林学院,兰州 730070；²甘肃省治沙研究所/荒漠化与风沙灾害防治国家重点实验室培育基地,兰州 730070；³中国科学院寒区旱区环境与工程研究所,兰州 730000）

收稿日期:2015-01-31 修回日期:2015-07-11 接受日期:2015-04-10 出版日期:2015-08-20 发布日期:2015-08-20
通讯作者: 万翔
基金资助:
国家重点基础研究发展计划“石羊河下游固沙植被退化过程、机理及调控”(2012CB723203)；国家科技支撑计划“民勤绿洲边缘退化防护体系修复技术集成与示范”(2012BAD16B0203)；甘肃省沙生植物保护利用科技创新团队(1207TTCA002)。

Study on Relationship Between the Distributions of Calligonum mongolicum Communities and
Soil Physical and Chemical Properties in the Edge of Minqin Oasis

Wan Xiang^1,2, Wang Li¹, Xu Xianying², Zhao Peng^2,3, Zhang Jinhu², Tang Weidong², Chai Chengwu²

(¹Forestry College of Gansu Agricultural University, Lanzhou 730070; ²State Key Laboratory Breeding Base of Desertification and Aeolian Sand Disaster Combating, Gansu Desert Control Research Institute, Lanzhou 730070; ³Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000)

Received:2015-01-31 Revised:2015-07-11 Accepted:2015-04-10 Online:2015-08-20 Published:2015-08-20

摘要/Abstract

摘要： 在全球气候和土地利用变化背景下，及时了解植被和土壤环境在特定区域的关系有助于预测植被群落的演替变化。在野外调查取样与室内分析的基础上，采用经典统计学和冗余分析的方法，研究了民勤绿洲边缘沙拐枣群落空间分布与土壤理化性质的相互关系。结果表明：民勤绿洲边缘沙拐枣群落出现14种植物，分属7科14属，物种组成贫乏，科属组成较为分散，结构简单。除了pH和电导率之外，沙拐枣群落土壤其他因子在各样带之间差异不显著。整体上看，沙拐枣群落生境土壤水分条件差，养分贫瘠，以粗化呈弱碱性的风沙土为主。冗余分析表明，电导率和pH对沙拐枣群落空间分布有显著的影响。沙拐枣是干旱区优良的固沙造林树种，建议在选择造林地时要考虑土壤盐碱性的影响。

关键词: 特点, 特点

Abstract: In the background of global climate and land use change, understanding of the relationship between vegetation and soil environment timely is useful to predict the succession change of vegetation communities. Based on field survey and laboratory analysis, the relationship between C. mongolicum communities’ spatial distribution and soil physical and chemical properties in the edge of Minqin Oasis was studied with the methods of traditional statistical and redundancy analysis (RDA). The results showed that there were only 14 plant species which belonged to 7 families and 14 genera in the study area. The species composition and structure of C. mongolicum communities were poor and simple. Water and nutrient condition of C. mongolicum communities was poor, mainly was coarsening and weakly alkaline sandy soil. The RDA results showed that pH and EC had significant influence on the distribution of C. mongolicum communities. As an important sand-fixation afforestation variety, the author suggested that soil salinity should be given more consideration when choosing planting site.

万翔,王立,徐先英,赵鹏,张进虎,唐卫东,柴成武. 民勤绿洲边缘沙拐枣群落分布与土壤理化因子关系研究[J]. 中国农学通报, 2015, 31(22): 51-56.

Wan Xiang,Wang Li,Xu Xianying,Zhao Peng,Zhang Jinhu,Tang Weidong and Chai Chengwu. Study on Relationship Between the Distributions of Calligonum mongolicum Communities and
Soil Physical and Chemical Properties in the Edge of Minqin Oasis[J]. Chinese Agricultural Science Bulletin, 2015, 31(22): 51-56.

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民勤绿洲边缘沙拐枣群落分布与土壤理化因子关系研究

Study on Relationship Between the Distributions of Calligonum mongolicum Communities and
Soil Physical and Chemical Properties in the Edge of Minqin Oasis

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民勤绿洲边缘沙拐枣群落分布与土壤理化因子关系研究

Study on Relationship Between the Distributions of Calligonum mongolicum Communities and Soil Physical and Chemical Properties in the Edge of Minqin Oasis

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Study on Relationship Between the Distributions of Calligonum mongolicum Communities and
Soil Physical and Chemical Properties in the Edge of Minqin Oasis