In the Zongdihua Pigs producing areas,We set up a Zongdihua Pigs Foundation Group of Breeding and Selection,and researched the reproductive performance.

Tracing of land parcel history in cadastral management systems;

A spatio-temporal data structure is presented to manage land parcel data and the method is used to manage and trace the historic land parcel based on the presented data structure and ArcGIS Engine.

This paper introduces the method suited to the separation of land parcel by means of analytic coordinate definition boundary point in the routine cadastral surveying and mapping.

Measuring and calculating the area of land play an impontant part in investigating the present situation of land utilization,and also are the key steps to obtain the quantitative data of land .

The operations of land evaluation have been transacted by handwork all long and rarely can be fulfilled effectively and accurately.

As the Property Law of People\'s Republic of China and Land Registration Rule are carrying out, this paper suggests the land use-right differentiation registration, based on the land transfer types and nature of land transfer and the discussion of the problems of present land registration.

Estimation Method of Potentials for Intensive Use of Urban Parcels:A Case of Jinan City;

Outcrop Sequence Stratigraphy on the Late Carboniferous—Early Permian Strata in Zongdi Area, Guizhou Province;

Twenty one fusulinacean species belonging to eight genera are found from a new section of the Early Permian Longlinian in Zongdi, Ziyun county of Guizhou Province.