By applying the principal component analysis method and the statistic software SPSS,this paper singles out principal component incomprehensive evaluation of trace elements in plant Nitraria leaf from Qinghai region,and to open a new area in comprehensive evaluation scientifically.

The content of Cu,Zn,Fe,Mn,Cr,Ni and Cd in Nitraria leaf from Chaidamu region was determined by 220 FS atomic absorption spectrometry.

Analyses on nutritional components of the pulp and seed from nitraria sibirica pall;

Studies on the Anatomical Vegetative Organs of Nitraria Sibirica Pall.;

The chromosome number ofNitraria sibirica Pall.

Study on Planting Techniques of Nitraria sibirica in Yellow River Delta Region with Worst Salt-affected Soils;

Effect of Nitraria sibirica Afforestation on Soil Ameliorat ion in Heavy Saline-alkali Soils;

Study on the Optimal Extraction Process of Total Alkaloid from Nitraria sibirica;

Compared analysis of the nourishment composition in the fruits of nitraria sibirica pall.and nitraria tangutorum bobr.;

Determination on the Content of Total Alkaloids in Uygur Medicine Nitraria;

Seedling-raising Technique on Nitraria in Cold and Drought Region;

Responses of Different Provenances of Nitraria tangutorum Seedlings in Photosynthetic Physiological and Growth Characteristics to Water Gradients;

Photosynthetic characteristics of Nitraria tangutorum and Haloxylon ammodendron in the ecotone between oasis and desert in Minqin, Region, Country;

Contrast of Pattern Characters in Two Different Natural Nitraria tangutorum Communnities in Half Fixed Dunes Outside Oases under Different Irrigating Systems;