查询词典 desert plant

A successional Artemisia ordosica and A. frigid community, located on the eastern edge of the Tengri Desert in Alashan Left Banner, Inner Mongolia, was selected as an object for study. Densities of the plants and total nitrogen and available phosphorus in 0~20 cm soil layer were measured of the 400 quadrates (4m×4m) in the sampling plot (80m×80 m) for analysis of relationship between N/P ratio in the soil and plant density thereupon and between the two in spatial heterogeneity.

选择腾格里沙漠东缘内蒙古阿拉善左旗境内的油蒿＋冷蒿群落为研究对象，在80m×80m样地400个4m×4m样方中，调查了油蒿和冷蒿的密度，测定了0~20cm土层中的全氮和有效磷，分析了土壤氮／磷比与植物密度之间及其空间异质性之间的关系。

By using Shannon-Wiener index of niche breadth and Pianka index of niche overlap, this paper studied the niche characteristics of main plant species at different succession stages of vegetation in desert areas of north Gulang County, Gansu Province.

利用Shannon—Wiener生态位宽度公式和Pianka生态位重叠公式，计测分析了甘肃省古浪县北部荒漠植被主要植物种在不同植被演替阶段的生态位宽度和生态位重叠。

A ' true desert ' has no plant life at all.

真正的沙漠是没有植物生存的。

They plant in the desert to hold water and solid.

人们在荒丘上种植了树木，以减少水土流失。

Life. Scientists estimate that a desert needs year round plant cover over 20 to 40 percent of its surface.

科学家估计一年之中植物必须覆盖沙漠表面的 20%到 40%。

Scientists estimate that a desert needs year round plant cover over 20 to 40 percent of its surface.

如果灌木间隔太远--大于它们高度的 5 倍--周围的土壤就可能被吹走。

I am a plant in desert, and you are the only source of water

好样的楼主！把你这贴顶到地狱去！！

Scientists estimate that a desert needs year round plant cover over 20 to 40 percent of its surface.

假如灌木间隔太远--大于它们高度的5倍--四周的土壤就可能被吹走。

Scientists estimate that a desert needs year round plant cover over 20 to 40 percent of its surface.

如果灌木间隔太远--大于它们高度的 5 到。

The increase of soil water content in woodland by drip-irrigation is of great importance to plant growing in desert area.

滴灌措施下林地土壤含水量的改善对沙漠区植物的生长至关重要。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。