人为输水干扰下不同树高级胡杨个体的分布特征研究——以塔里木河下游为例

来源 :新疆农业科学 | 被引量 : 0次 | 上传用户：seasports

【摘要】

：

自2000年实施的向塔里木河下游8次应急输水对以胡杨为主体的荒漠河岸林产生了一定的恢复作用.为了定量评估胡杨对人为输水的响应程度,采用"面"上宏观调查与" 点"上典型研究相

【作者】

：

蔡福艳玉米提·哈力克

【机构】

：

新疆大学资源与环境科学学院,新疆维吾尔自治区绿洲生态重点实验室,新疆塔里木河流域管理局,中国科学院新疆生态与地理研究所

【出处】

：

新疆农业科学

【发表日期】

：

2004年期

【关键词】

：

树高级塔里木河下游生态输水人为干扰

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

自2000年实施的向塔里木河下游8次应急输水对以胡杨为主体的荒漠河岸林产生了一定的恢复作用.为了定量评估胡杨对人为输水的响应程度,采用"面"上宏观调查与" 点"上典型研究相结合的方法,以塔里木河下游阿拉干断面设立的长期监测样地内的胡杨为研究对象,分析与研究了树高及其分布特征.结果表明:不同树高级的胡杨分布具有一定规律性;随着离河距离的增加,胡杨株数呈递减趋势;特别是在距河50 m范围内人为输水干扰对胡杨幼苗更新具有显著作用.

其他文献

Solidification crack susceptibility of aluminum alloy weld metals

The susceptibilities of the three aluminum alloys to solidification crack were studied with trans-varestraint tests and tensile tests at elevated temperature. T

期刊

aluminum alloyweld metalsusceptibilityweldabilitysolidification crackcracki

Synthesis and Characterization of Er3+∶Y3Al5O12 Nanocrystalline Powders Prepared by Sol-Gel Method

Nano-sized Er3+∶Y3Al5O12 powders was successfully prepared via a simple sol-gel route at as low a temperature at 800 ℃ whereas a temperature much higher is ne

期刊

preparationYAG nanocrystalline powderssol-gel method

Dynamic recrystallization behavior of commercial pure aluminum

The flow stress feature and microstructure evolvement of a commercial pure aluminum were investigated by compression on Gleeble-1500 dynamic materials test mach

期刊

commercial pure aluminumhot compressiondynamic recoverydynamic recrystallizat

Microstructure and property of zinc phosphate coating on die-casting magnesium alloy AZ91D

A surface treatment method was described, which can form a uniform and dense phosphate conversion coating on the die -casting magnesium alloy AZ91D in a non-chr

期刊

magnesium alloyAZ91Dphosphate coatingadhesionanticorrosive

Fabrication and Luminescence Properties of Ca2Gd8(SiO4)6O2:Er3+ Phosphors via Sol-Gel Process

Ca2RE8(SiO4)6O2 (RE=Y, Gd, La) is a kind of ternary rare-earth-metal silicate with the oxyapatite structure, which was used as host materials for the luminescen

期刊

silicate oxyapatitesol-gelluminescenceEr3+rare earths

Microstructure of Fe/Pt film anneled in magnetic field

An Si(001)/SiO2/Ti/Pt/Fe/Cu multilayer was prepared by direct-current magnetic sputtering system. The phase composition of the film was characterized by X-ray d

期刊

L10-FePtmagnetic recording systemuniaxial magnetic anisotropymagnetic field a

Evaluation of Al and Some of Its Alloys as Anode Materials vs γ-MnO2 as Cathode Material and Ore Pro

In this study electrochemical performance of Al and some of its alloys (Al-Zn, Al-Mg and Al-Mn) anodes vs MnO2 cathode were carried out in alkaline solution. Th

期刊

Electrolytic MnO2ZnAlAlkaline batteries

Surface modification of Al-Pb alloy by high current pulsed electron beam

Al-Pb alloy was modified by high current pulsed electron beam and the microstructure, hardness and tribological characteristics were characterized by scanning e

期刊

pulsed electron beamcoefficient of frictionwear ratetribolayer

Direct electroless Ni-P deposition on AM50 magnesium alloy from sulfate bath

A bright electroless Ni-P deposition on AM50 magnesium alloy in a sulfate plating bath was proposed by using direct plating process with non-chromate pretreatme

期刊

magnesium alloyAM50Ni-P depositionsalt sprayadhesion

Thermo-physical properties of reproducible Sip/Al composites

Three kinds of high volume fraction Sip/1199, Sip/4032 and Sip/4019 composites were fabricated by squeeze casting method. The results show that the clean Si/Al

期刊

Sip/Al compositeinterfacesthermal expansionthermal conductivity

人为输水干扰下不同树高级胡杨个体的分布特征研究——以塔里木河下游为例

其他学术论文