psammon

用法例句

Based on the data from field investigation along a 5 km transect,spatial variant features of the vegetation coverage of the psammophytic half shrub community in Mu Us Sandland was described through semivariance analysis and fractal analysis.

在使用 5m× 50 0 0 m样带进行调查获得的植被盖度数据的基础上 ,通过半方差分析和分形分析揭示了毛乌素沙化草地沙生半灌木群落植被盖度的空间变异特点。

The plant species,coverage and density in the Hippophae reamnoides L.

不同发育阶段沙棘群落灌木层物种丰富度呈增加趋势,草本层的物种丰富度呈先减少后增加的趋势;灌木层和草本层的S impson指数和Shannon-W iener指数在不同阶段沙棘群落中表现出大致相同的趋势,即草本层>灌木层。

Niche characteristic of herbages in artificial sand-fixing communities in Horqin sandy land

科尔沁沙地人工固沙群落草本植物种群生态位特征

Study on Diversity of Fungus Community of Sand-Fixation Plants in Wulan Buh Desert;

乌兰布和沙漠固沙植物真菌群落多样性研究

Nematodes as an Indicator of Their Habitats at Shapotou in the Tengger Desert, China

沙坡头人工固沙区线虫群落对其栖居环境指示作用研究

Improvement Effects of Four Plantations for Sand-fixation on Soil Nutrient Contents and Biological Activities

四种人工固沙植物群落对土壤养分及生物活性的改良作用

Characteristics of Natural Regeneration of Sabina Vulgaris Community in Mu Us Sandland;

毛乌素沙地臭柏群落的天然更新特征

Community Structure and Diversity of Spiders in the Astragalus adsurgens Fields;

沙打旺种植地蜘蛛群落结构及多样性

ENERGY ECOLOGICAL RESEARCH ON PRODUCTIVITY DYNAMICS OF Artemisia ordosica COMMUNITY IN SANDLAND

沙地油蒿群落生产力动态的能量生态学研究

ANALYSIS OF THE COMMUNITY STRUCTURE CHARACTER OF ELAEAGNUS OXYCARPA FORESTRY IN ALTAI DISTRICT OF XINJIANG

新疆阿尔泰地区尖果沙枣林群落结构特征分析

Studies on the Structure and Dynamics of the Spider Community in Early Rice Fields in Wangcheng County of Changsha

长沙望城县早稻田蜘蛛群落结构及动态研究

The Eco-Physiological Characteristics and Community Stability of Sabina Vulgaris in Mu Us Sandland

毛乌素沙地臭柏生态生理特性及其群落稳定性

Study on the Characteristics of Protozoan Community and the Operating Efficiency of the Shaying Stabilization Pond;

沙营稳定塘原生动物群落特征与运行效能研究

Studies on Structure and Dynamics of Main Vegetables Insect Community of Changsha;

长沙市主要蔬菜地昆虫群落结构及其动态分析

Analysis on the Aves Community Diversity and Evaluation of Their Habitat in Shahu, Hubei;

湖北沙湖鸟类群落多样性分析及栖息地评价

Studies on the Water Dynamic of Plant Communities on Sandy Land in Yanchi, Ningxia;

宁夏盐池沙地主要植物群落土壤水分动态研究

The Characteristic Analysis of Soil Fauna Communities in the West Sandy Land Region of Heilongjiang Province;

黑龙江省西部沙地土壤动物群落特征分析

Comment on Chongqing Sha Pingba Squares Spatial Form;

论重庆沙坪坝中心广场群落的空间形态

Community of Macrobenthos in Gaoshaling Intertidal Zone, Tianjin

天津高沙岭潮间带大型底栖动物群落特征

Study on Species Diversity of Plant Community in Sands of the Different Successional Stages

不同演替阶段沙地植物群落物种多样性研究