Wang Lizian, Yao Yunfeng, Xu Maojie, et al. Evaluation and Regulation of Soil Fertility of Farmland in Sanchuanhe Watershed[J]. Bulletin of Soiland Water Conservation, 1991, 10(2): 31-38.
Wang Lizian, Yao Yunfeng, Xu Maojie, et al. Evaluation and Regulation of Soil Fertility of Farmland in Sanchuanhe Watershed[J]. Bulletin of Soiland Water Conservation, 1991, 10(2): 31-38.DOI:
Sanchuanhe watershed is one of the eight key integrated control areas of soil and water conservation in China
As the developing of control work and agriculture forestry and animal husbandry
soil of farmland is required more and more highly
This paper evaluates soil fertility of every type farmland
using PCA method
based on the investigation and measurement of soil fertility of different farmland in the watershed.A new classification of farmland has been suggested
It proposes scientific base for the regulation of different type farmland and. the development of ag-riculture.