Some scholars have study the jades in Neolithic period in Haidai region from different angles,but few analyses on the origin of raw material of jade and technology.

The Haidai region, which lies in the lower Yellow and Huai River Valley, was mainly a millet planting dry farming area in the early Neolithic period.

New Progress of Prehistoric Studies of Haidai Area;

According to some archaeological documents,there is close relationship between the Central Plains and Haidai Area.

The paper probes into that the civilization course of Haidai area by archaeological materials, mainly analyzes the technology of agriculture, breeding, handicraft industry, using characters and the appearance of the bronzes and cities, and comparatively researches the civilization courses between Haidai area and ambient areas.

Heluo region and Haidai region are adjoining to each other.

A higher resolution pollen record from core 99A reveals the variation of mean July temperatures and annual precipitations of Daihai basin during the past 1 500 by using pollen-climate response surfaces conducted by Sun Xiangjun et al.

Spatial Distribution of Nitrogen in Surface Sediments of Daihai Lake and Its Environmental Significance;

Water Quality Analysis and Assessment of Daihai Lake in Inner Mongolia;

An 800-Year Temperature Reconstruction in Daihai Lake Area of Inner Mongolia;