Relationship Between Change of Plant Community and Precipitation in Desert Grassland of Minqin County in Recent 10 Years

TANG Zhihong; JI Yongfu; AN Fubo; ZHANG Yinghua; TANG Jinnian

doi:10.13961/j.cnki.stbctb.2015.01.010

您当前的位置：

首页 >

文章列表页 >

Relationship Between Change of Plant Community and Precipitation in Desert Grassland of Minqin County in Recent 10 Years

- Relationship Between Change of Plant Community and Precipitation in Desert Grassland of Minqin County in Recent 10 Years
- Bulletin of Soiland Water Conservation Vol. 35, Issue 1, Pages: 47-53(2015)
- 作者机构：
  
  1. 甘肃省林业职业技术学院,甘肃,天水,741020
  2. 甘肃省治沙研究所,甘肃,兰州,730070
  3. 甘肃民勤荒漠草地生态系统国家野外科学观测研究站,甘肃,兰州,730070
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2015.01.010
  CLC：
- Published：2015
- 稿件说明：
移动端阅览
TANG Zhihong, JI Yongfu, AN Fubo, et al. Relationship Between Change of Plant Community and Precipitation in Desert Grassland of Minqin County in Recent 10 Years[J]. Bulletin of Soiland Water Conservation, 2015, 35(1): 47-53.
DOI：

TANG Zhihong, JI Yongfu, AN Fubo, et al. Relationship Between Change of Plant Community and Precipitation in Desert Grassland of Minqin County in Recent 10 Years[J]. Bulletin of Soiland Water Conservation, 2015, 35(1): 47-53. DOI： 10.13961/j.cnki.stbctb.2015.01.010.

摘要

[目的] 研究甘肃省民勤县荒漠草地植被与降雨量的关系。[方法] 采用样线法和针刺法

对民勤县3种立地条件下的荒漠草地10 a植被变化进行4次定位监测

用Excel软件分析植被生长和降水量变化的关系。[结果] 民勤县大气降水年际间和年内变幅都很大

这对植物生长十分不利。民勤县荒漠草地植被生长所需水分主要依靠大气降水和地下水。西沙窝沙质荒漠草地和红果子井砾质荒漠草地植被完全依靠大气降水存活和生长

植物生长与降水的关系十分密切

其中一年生草本植物最为明显。但是对地下水位较高的白土井盐渍化荒漠草地植物来说

植物生长主要靠地下水

降水将积聚在表层的盐分淋溶到了根系层

对植物生长不利。[结论] 民勤县荒漠草地植被生长情况虽然受降雨的影响较大。总体上该县植物生长呈现衰败的趋势

荒漠化也日趋加重。

Abstract

[Objective] To better understand how precipitation influences plant growth in Minqin County

Gansu Province.[Methods] Line transect method and grid stabbing method were used to monitor vegetation change under three site conditions in Minqin County. It was monitored four times during ten years. The investigation data were analyzed by Excel software.[Results] Interannual and annual meteoric water changed greatly

which was harmful to plant growth. Some plant growth depended mainly on precipitation in sandy desert grassland of Xishawo and gravel desert grassland of Hongguozijing in Minqin County

and hence plant growth hasd a close relationship with precipitation

especially the annual herb. The other plant depended mainly on groundwater in salinization desert grassland of Baituing where groundwater level was higher. It was harmful to plant growth that the salinity accumulated on surface soil was leached into root zone by precipitation.[Conclusion] The plant growth depends on precipitation or groundwater and is influenced by precipitation greatly. The desert vegetation declines gradually and also desertification is aggravated increa-singly in Minqin County.

关键词

Keywords

references

纪永福,俄有浩,杨自辉,等.民勤盆地生态功能类型区划分与生态用水分析[J].干旱区研究,2008,25(1):10-15.

刘伟,石惠春,何剑.民勤县生态经济功能区划[J].生态与农村环境学报,2013,29(3):386-389.

常兆丰,赵明,仲生年,等.民勤沙区植被退化与年际降水量关系的定位研究[J].西北植物学报,2005,25(7):1295-1302.

纪永福,贺访印,李亚.民勤绿洲水资源状况与生态建设研究[J].干旱区研究,2005,22(3):361-365.

李昌龙,王继和,孙坤,等.民勤连古城自然保护区群落结构和物种多样性特征分析[J].西北植物学报,2006,26(11):2338-2344.

李昌龙,马瑞君,王继和,等.甘肃民勤连古城自然保护区优势种种群结构和动态研究[J].西北植物学报,2005,25(8):1628-1636.

常兆丰,赵明,刘虎俊,等.民勤荒漠生态退化动态特征研究[J].中国农学通报,2007,23(11):333-338.

常兆丰,刘虎俊,赵明,等.民勤荒漠植被的形成与演替过程及其发展趋势[J].干旱区资源与环境,2007,21(7):116-124.

彭鸿嘉,傅伯杰,陈利顶,等.甘肃民勤荒漠区植被演替特征及驱动力研究:以民勤为例[J].中国沙漠,2004,24(5):628-633.

常兆丰,韩福贵,仲生年,等.民勤荒漠草地植物群落自然更新和退化演替初探[J].草业科学,2008,25(8):13-18.

杨兆义.民勤荒漠植被特征及其适应特征初步研究[J].防护林科技,2006,22(3):33-37.

常兆丰,赵明,仲生年,等.民勤沙区植被退化与年际降水量关系的定位研究[J].西北植物学报,2005,25(7):1295-1302.

张武文,史生胜.额济纳绿洲地下水动态与植被退化关系的研究[J].冰川冻土,2002,24(4):421-425.

李发明.民勤天然草地资源及其管理利用[J].草业科学,1997,12(5):35-38.

刘生龙,高志海,王理德.民勤红砂岗地区绵刺分布和繁殖方式及濒危原因调查[J].西北植物学报,1994,14(6):111-115.

刘建泉.甘肃民勤西沙窝唐古特白刺群落的生态特性[J].植物资源与环境学报,2002,11(3):36-40.

刘建凯,富远年,宋良红.民勤县荒漠化成因与防治对策[J].水土保持通报,2007,27(3):180-182.

Views

1627

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Spatiotemporal variations in temperature and precipitation from 1993 to 2022 and prediction of their extreme values in Pearl River basin

Influences On Changes of Precipitation in Shaanxi Province

Characteristics of Soil Enzymatic Activities in Enclosed Area of Yunwu Mountain

Influence of Heavy Rain Event on Soil Water Content of Nitraria tangutorun Nebkhas in Different Succession Periods

Causes and Control Countermeasures of Desertification in Minqin County of Gansu Province

Related Author

Liu Tao

Yao Wanqing

Lin Siyi

Chen Xuqing

Xu Borui

Liu Youcun

MIAO Qi-long

LIU Yin-ge

Related Institution

School of Chemistry and Environment， Jiaying University

School of Geography and Tourism， Jiaying University

Northwest Sci-Tech University of Agriculture and Forestry, Yangling District

Institute of Soil and Water Conservation, CAS and MWR, Yangling District

Gansu Key Labortory on Desertification Combating

⁰