According to the requirements of the project, the information resources contained in the database and the existing resources of our library, the following retrieval tools and databases can be selected for this project:

China dissertations database

China Academic Conference Papers Full-text Database (Chinese Version)

Vip Chinese periodical database

Hong Zhong database

China HowNet Doctoral and Master Thesis Library

Website of China Intellectual Property Office

Record retrieval strategy

1: full-text database of Chinese dissertations (Wanfang)

Retrieval strategy: advanced retrieval. Topics include: land resources. Keywords include: bearing capacity. * * * 16 Find papers that meet the requirements.

2. Full-text database of China academic conference papers (Chinese version)

Retrieval strategy: advanced retrieval. Topics include: land resources. Keywords include: bearing capacity. * * * Found 5 eligible papers.

3. VIP Chinese periodical database

Search condition: (keyword = bearing capacity) * (keyword = land resources) * All periodicals * Year =1989-2011,and the query result: * * 1 19 found.

4. Doctoral and Master Thesis Library of China HowNet.

Retrieval strategy: advanced retrieval. Keywords = land resources, keywords = carrying capacity. * * * 16 Find papers that meet the requirements.