荒漠

The formation-types are first rearranged into four major biochores-forest, savanna, grassland , and desert.

首先把群系型重新排列成要生态——森林、稀树草原、草地和荒漠。

Dipus sagitta showed a high density and was dominant in desert-type habitats, especially in sand dune.

聚分析结果显示, 研究啮齿动物群落可以分成荒漠型群落和绿洲型群落两大。

In this area ,the ecological environment is veryrigorous for living things,and aridness and wind and sarid are main threats.

塔克拉玛干沙漠属极旱荒漠地，生态环境十分严酷，干旱和风沙为害是最要生态环境问题。

It was obvious that soil salt accumulated in deep soil of farmland and soil salt accumulated in surface horizon of uncropped soil.

荒漠绿洲边缘演变以环境梯度变化为要驱动力。

The north of zhungeer is the main district of Central Asia desert mammal population and the mammal in Altai is north subfrigid zone coniferous forest pattern.

摘要准噶尔盆地北沿与阿尔泰山地,山以北方针叶林型动物群为,平原以中亚荒漠型动物群居多,广布种掺杂其间。

Abstract : In dry area or sandy dryland, for the reason of scarce rainfall, windiness and lack of labor power and material resources, the low survivor ratio of afforestation were common.

摘要 ： 在干旱或荒漠地造林，降雨稀少，风多且风大，加之人力、物力贫乏等原因，导致造林成活率低。