[1]HAN Zongwei,LU Debin,YANG Jian,et al.Analysis on the Distribution and Variation Trend of Cultivated Land Quality in Guizhou Province[J].Research of Soil and Water Conservation,2017,24(06):154-159,166.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 06
Page number:
154-159,166
Column:
Public date:
2017-11-24
- Title:
-
Analysis on the Distribution and Variation Trend of Cultivated Land Quality in Guizhou Province
- Author(s):
-
HAN Zongwei, LU Debin, YANG Jian, XIONG Bo, HUANG Tingting
-
Tongren University, Tongren, Guizhou 554300, China
-
- Keywords:
-
cultivated land quality; CA-Markov; fuzzy optimum; ideal point method; Guizhou Province
- CLC:
-
F321.1;F301.24
- DOI:
-
-
- Abstract:
-
In order to deepen the understanding of spatial pattern and variation trend of cultivated land quality in Guizhou Province and provide reference for the development of rational farmland quality protection system and decision-making, the cultivated land quality and its variation trend were analyzed based on the distribution of cultivated land in 1989, 1995, 2000. Fuzzy optimum model and ideal point method were combined to evaluate the quality of cultivated land in each year. CA-Markov model and spatial analysis tools were employed to predict the distribution of cultivated land in 2020. The findings suggest the followings. First, there is a mutual transfer between 6 types of land uses in Guizhou Province, 63.6% of the changed areas from cultivated land are still agricultural land, such as forest land, grassland, and the change of land use nature is not obvious. Second, other kinds of land uses have the tendency of transferring to cultivated land, most of the changed areas were transferred to cultivated land, and the amount of area was larger than the area transferred out of cultivated land, so, the quantity of cultivated land is increasing gradually. Third, the environment of cultivated land in Guizhou Province is continuously optimized and the high-quality cultivated land resources have been effectively protected and utilized, the area of the superior land level has the gradually expanding tendency. Fourth, the predicted cultivated land in 2020 indicts that the percentage of superior land level, higher land level, moderate land level and lower land level in the total cultivated land will be 46.9%,42.2%,10.8%,0.1%, respectively, most of the superior land levels will concentrate in areas where river systems are more developed and agriculture resources are rich.