中国、蒙古国草原(Steppe)对比考察项目   相关图片  论文集

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2009中蒙国际合作项目乌兰巴托双边会议   
   研究报告论文集 (中国部分)   

 

 
 


蒙古高原针茅草原植物营养与表层土壤理化特性相关性研究

——中蒙典型草原荒漠化比较考察报告

 

萨娜斯琴1 易津1,包秀霞1, 包翔1,春兰1乌仁其木格1,

苏布达1,阿瓦道尔吉2,布德巴特3,敖特根托亚3吉木色4

   1 内蒙古农业大学;2 蒙古国家畜牧科学院;3 蒙古绿金子牧场项目;4 内蒙古草原勘察设计院;

 

摘要:本论文从中蒙两国草场的不同管理模式为切入点,2007-2008年中蒙两国科学家进行联合考察,采用野外调查与实验室分析相结合的方法对其植被特征、植物营养成分及表层土壤理化特征进行分析,分别比较了蒙古高原东南部中蒙比邻地区8个嘎查不同放牧方式对草原植物营养和表层土壤理化特性的差异。研究了植物营养与土壤特性之间的相关关系。8嘎查调查区域内,植物营养成分分析结果表明8个样地间钾含量较丰富,样地间差异较小;氮、磷、碳水化合物含量较短缺,样地间差异较大,其中内蒙古东苏旗07-NMG-B-1的定居放牧样地显著低于其它轮牧和游牧样地,内蒙古东乌旗08-NMG-A-4样地含量最高;一般原生植被的多年生植物营养成分和叶绿素含量明显高于退化植被的一年生植物。

表层土壤营养成分分析结果表明8个样地间钾含量也较丰富,样地间差异较小,氮、磷含量较短缺,样地间差异较大。其中内蒙古东苏旗07-NMG-B-1的定居放牧样地显著低于其它轮牧和游牧样地,内蒙古东乌旗乌利亚斯太镇额尔顿乌拉嘎查07-NMG-A-4样地N、全K有机质含量最高;蒙古苏赫巴特尔省额尔顿查干苏木塔拉宝里格嘎查07-MG-A-1样地速效磷含量最高。

表层土壤物理特性分析结果表明8个样地间土壤质地类型差异较大,内蒙古东乌旗额尔顿乌拉嘎查07-NMG-A-4样地土壤机械组成中壤土(<0.001mm)比例最高,蒙古国戈壁省杜日本旗嘎查-07-MG-B-2样地最低;蒙古苏赫巴特尔省塔拉宝里格嘎查07-MG-A-3样地土壤机械组成含量砂壤土(<0.05mm<0.01mm<0.005mm)比例最高;由于中土壤保水性要大于砂土壤所以此结果表明07-NMG-A-4样地表土保水性高于其它嘎查样地。表层土壤pH分析结果表明8个样地间土壤pH差异较小,8嘎查土壤pH值均呈中偏碱性,其中内蒙古4嘎查表层土pH值均高于蒙古国4嘎查。

 相关分析结果显示中蒙8嘎查植物营养成分与土壤全氮、全磷、全钾、含水量呈显著正相关(R>0.8);植物养分与土壤PH值存在不显著负相关。研究认为中蒙8嘎查植物营养成分差异主要是由于土壤养分差异所致。土壤营养成分差异与放牧方式关系密切,其中定居放牧普遍低于两季轮牧和四季游牧。

关键词:蒙古高原 针茅草原 植物营养特性 土壤特性 相关性

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资助项目:中蒙国际合作项目资助(2007-2009

** 作者简介:萨娜斯琴(1982-)男,内蒙古通辽人,硕士研究生,主要从事牧草生理生态研究

** 通讯作者:易 津,(1951-)女,内蒙古呼和浩特人,教授,博士生导师 , Email:yijin@163.com

 

Relevance Analysis Report of Plant Nutrition and soil surface Physical and chemical characteristics on stipa krvlovii in Mongolian plateau

Report of Comparison on typical steppe desertification between China and Mongolian

Sanasiqin1 Yijin1 Baoxiuxia1 Baoxiang1 Chunlan1 Wurenqimuge1
Subuda1 Budebate2 Aotegentuya2 Jimuse3

1. Inner Mongolia Agriculture University, Huhhot;
                  2.Institute of Animal Husbandry in Mongolia, Ulaanbaatar;
                  3. Institute of Grassland Survey and Design in Inner Mongolia,Huhhot;
                  4. Animal Husbandry Bureau of Eastern Sunite Banner in Inner Mongolia;

Abstract: This paper forces on different management model in China and Mongolia grassland . Scientists from China and Mongolia took an investigation in 2007-2008 .We obtained vegetation characteristics, plant nutrients and soil surface physical and chemical properties by surveying and analysis. Respectively, Comparing the plant nutrition and soil physical and chemical characteristics in 8 adjacent villages in south-eastern China and Mongolia under different grazing methods. At the same time, relevance of plant nutrition and soil properties is researched.         The results show that in all investigation area, The analysis of plant nutrient composition showed that 8 plots is rich of kalium ,each of which have small differences , shortage of nitrogen, phosphorus, and carbohydrate, each of which have large differencesThe content of native plants Chlorophyll and nutrient is higher than annuals.The content of nitrogen, phosphorus, and carbohydrate by Settlement of grazing plot is significantly less than other rotational grazing, and nomadic-like manner in Baiyintugurige village,Sanhangaobi countryside of eastern Sunite banner in Inner Mongolia and is  the most in   Baiyinburide village ,Mndu countryside eastern Wuzhumuqin banner in Inner Mongolia. . The result of soil surface nutrients analysis is as same as plant nutrient composition one ,but the content of N,K and organic matter is the most in Erdunwula village ,Wuliyasitai countryside eastern Wuzhumuqin banner in Inner Mongolia .While ,the content of extractable phosphorus is the most in Talabaolige village, Erdunchagan countryside of Suhebater province in Mongolia. Analysis of soil surface physical properties imply that Soil texture type is different. Mechanical composition of soil<0.001mm is the most in Erdunwula village ,Wuliyasitai countryside eastern Wuzhumuqin banner in Inner Mongolia,which means surface soil water retention is the best than others, and the least in Duribenqi village, Erdeni countryside of Eastern gebi province in Mongolia. Mechanical co mposition of soil<0.05mm<0.01mm<0.005mmis the most in Talabaolige village, Erdunchagan countryside of Suhebater province in Mongolia. Otherwise, the pH of 4 plots in Inner Mongolia is more than 4 plots in Mongolia ,which are all neutral and alkaline.There is good positive correlation between plant digestible nutrients and soil nitrogen, phosphorus, kalium, water content,and the coefficient is than 0.8. There is negative correlation between plant nutrient and soil pH, which means the differences of Plant nutrition originated in the differences of soil nutrients. Differences of is related grazing methods. And soil nutrient which to settle in grazing rotation is more than four seasons nomadic.

Key words: Mongolian Plateau; Stipa steppe ; Plant nutrition characteristics ;Soil properties;

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* foundation itemInternational cooperative project between China and Mongolia2007-2009

** Author introduction: Sanasiqin1982--MaleMongolianMaster student.

*** Corresponding authorYijin1951-Femaleprofessor, supervisor of Ph, Email:yijin@163.com