[1]REN Shou-de,FU Qiang,WANG Kai,et al.Comprehensive Evaluating Regional Agricultural Water and Soil Resources Carrying Capacity Based on RAGA-PPPCA Model[J].Research of Soil and Water Conservation,2011,18(01):116-120.
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Comprehensive Evaluating Regional Agricultural Water and Soil Resources Carrying Capacity Based on RAGA-PPPCA Model
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
18
Number of periods:
2011 01
Page number:
116-120
Column:
Public date:
2011-02-20
- Title:
- Comprehensive Evaluating Regional Agricultural Water and Soil Resources Carrying Capacity Based on RAGA-PPPCA Model
- Keywords:
- carrying capacity of agricultural water and soil resources; Projection Pursuit Principal Components Analysis model; comprehensive evaluation; Sanjiang plain
- CLC:
- F323.21
- DOI:
- -
- Abstract:
- On the basis of giving an overall analysis of factors influencing the changes of the carrying capacity of agricultural water and soil resources complex system, in this paper, the concept of the agricultural soil and water resources carrying capacity are preliminarily proposed. 27 evaluation indexes of the carrying capacity are selected. They are all closely related to the agricultural soil and water resources. In order to solve the problem of the evaluation process complexity that caused by the excess evaluation indexes. This paper puts forward Projection Pursuit Principal Components Analysis model. This model effectively combines the characteristic of Principal Components Analysis, which can solve multi-correlation among indexes effectively, and the technology of the Projection Pursuit model, which can reduce dimension efficiently. This model has already been applied in comprehensive evaluation of the agricultural water and soil resources carrying capacity at Sanjiang plain Jiansanjiang region. It gained the satisfactory result. Moreover, it provides a new idea and approach for the study on the evaluation of the agricultural water and soil resources carrying capacity.
- References:
-
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1900-01-01