四合木

对四合木（TetraenaMongolicaMaxim）的繁殖特性做了综合研究，结果表明：四合木具有有性和无性生殖2种形式的繁育系统，以有性生殖占主导地位。

The reproductive characteristics of Tetraena mongolica Maxim were studied comprehensively . The results were presented as follows : Tetraena mongolica Maxim had two forms of reproductive system : sexual and asexual , the former played a leading role .

四合木分布区土壤细菌遗传多样性在有煤样地（A）和无煤样地（B）间具有差异性。

There is a magnificant difference of the genetic diversity of Bacteria in the distributive area of Tetraena Mongolica , between the area with colliery and the one without colliery .

四合木（TetraenaMongolicaMaxim）氨基酸含量特征分析

Characteristic Analysis of Amino Acid Contents of Tetraena mongolica Maxim

四合木（Tetraenamongolica）分布区景观结构时空变化分析

Spatial-temporal Change of Landscape Structure in the Distribution Region of Tetraena mongolica

四合木（TetraenaMongolicaMaxim.）自然更新及就地保护途径的研究

A Study on the Natural Renewal and on-site Conservation of Tetraena Mongolica Maxim

濒危植物四合木（TetraenaMongolicaMaxim.）悬浮培养下体细胞胚胎发生

The development of somatic embryo of rare endangered Tetraena mongolica maxim . under cell suspension culture

通过对20条100m样线上475株四合木植株的观测，明显可见的开花结实植株仅占11%左右；

Through investigating 475 Tetraena mongolica plants on 20 line transects ( 100 m per line ), the result is that the flowering and fruiting plants occupy 11 % of all .

四合木（Tetraenamongolicus）在我国是蒺藜科（Zygophyllaceae）的单种属植物，其花粉形态与蒺藜科其他属植物的花粉形态差别较大。

Tetraena mongolicus is Zygophyllaceae 's single category plants in China , its pollen morphology have obvious differences from the other category plants in Zygophyllaceae .

珍稀濒危树种-四合木组织培养过程中的染色体变异

Chromosome variations during the tissue culture of Tetraena Mongolia Maxim

濒危荒漠灌木四合木的种群更新与保护策略

Population Regeneration and the Protective Strategies of Endangered Desert Shrub Tetraena mongolica

濒危植物四合木种群传粉生态学研究

Study on Pollination Ecology of Endangered Plant Tetraena mongolica Population

残遗植物半日花与四合木生理生态学特征的比较研究

Comparative study on physical ecology characters between two relic plants-Helianthemum songaricum and Tetraena mongolica

西鄂尔多斯特有种四合木种群遗传多样性及遗传分化研究

Population genetic diversity and differentiation of endemic species Tetraena mongolica on the Western Ordos

在自然居群中测定四合木结籽率为1.9%。

The rate of seed setting was measured as 1.9 % in natural population .

四合木种子特性的测定研究

Determination of Tetraena mongolica seeds characteristic

西鄂尔多斯高原北缘四合木群落优势灌木种群生态位研究

Study on niche of dominant shrub populations of Tetraena mongolica Maxim . community on the North Ordos Plateau

四合木的传粉效率较低：50%的柱头上无花粉，20%的柱头上有1～2个花粉，30%的柱头上有多个花粉；

50 % of stigmas have no pollen , 20 % have 1 ~ 2 pollens , and only 30 % have many pollens .

结果表明：（1）四合木的分布区面积约为2754km2；（2）分布区面积及斑块平均面积都在减少。

The results are as follows : ( 1 ) the distribution of Tetraena mongolica is determined and distribution area is 2754 km 2 ;

中国特有植物四合木种群结构及动态研究

A Study on the Population Structure and Dynamics of Tetraena mongolica Endemic to China A STUDY ON POPULATION STRUCTURE AND DYNAMIC TREND OF MONGOLIAN GAZELLE IN CHINA

四合木的密度和冠幅表现为在同一生境条件下，距人为干扰源越近的四合木群落受干扰程度越大，群落内四合木密度和冠幅越小。

The density and crown diameter presented as the further from human interference source , the more number and bigger crown of diameter Tetraena will have in the same habitat .

四合木斑块表现为越靠近工矿分布面积越少、边界密度越大、破碎化越严重。

The Tetraena patch expressed as : the closer to the mine , the less the distribution area , the greater the boundary density and the more serious the degree of fragmentation .

四合木种群较高的遗传多样性和极低的种群间分化，说明不同的种群可能有共同的起源，随机遗传漂变和近交衰退不是影响遗传多样性的主要过程。

The high intrapopulation variation and low interpopulation differentiation could explained that the different populations might originate from the same one and genetic drift or inbreeding depression had not influenced primary process of genetic diversity .

套袋实验发现，四合木传粉方式以异花传粉为主，传粉结束后统计，异花传粉结实率为50%，自花传粉结实率为15%。

Bag mark experiment showed that the out crossing was the main form of pollination . Statistics after pollination showed the out crossing rate of fruit setting was 50 % , while selfing rate was 15 % .

因此研究空间上斑块分布区的生境适宜性和四合木的生态适应性具有十分重要的意义，将有助于探索四合木种群的濒危机制，也将为濒危植物保护措施的制定提供科学依据。

And analysis on habitat fitness of different population patches in distribution region and ecological adaptability of endemic species T. mongolica are of great significance . It will help to seek after the danger mechanism and offer science base for establishing the safeguard .

柏科四种植物次生韧皮部的比较解剖四合木（TetraenaMongolicaMaxim）叶片的比较解剖学研究

Comparative Anatomy of the Secondary Phloem in Four Species of Cupressaceae Comparative Anatomy Study on Leaves of Tetraena mongolica Maxim