| Analysis of correlations between cultivated land use change factors and grain production since the founding of PRC in Xiangyang |
|
View Fulltext View/Add Comment Download reader |
| |
| DOI：10.7606/j.issn.1000-7601.2010.05.38 |
| Key Words: grain productive cultivated land use correlation analysis Xianyang |
| Author Name | Affiliation | | GUO Yi | College of Tourism and Environment, Shaanxi Normal University, Xi'an, Shaanxi 710062, China | | ZHAO Jingbo | College of Tourism and Environment, Shaanxi Normal University, Xi'an, Shaanxi 710062, China
State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, CAS, Xi'an, Shaanxi 710075, China |
|
| Hits: 223 |
| Download times: 199 |
| Abstract: |
| On the basis of the total grain yield computation model, we analyzed 4 factors of cultivated land use, then computed the correlative coefficients and partial coefficients between the grain yield and the area, the degree of utilization, the use structure and intensity change in cultivated land use by using correlation analysis method in various periods. Based on the results of analysis, we discussed the effects of cultivated land use on grain production. The results show that: (1) The intensity change in cultivated land use is the most remarkable factor from beginning to end, but the influence tends to weaken slowly; (2) The influence of the area of cultivated land has the weakening tendency, comparatively, the binding force to grain yield is strengthening with farming land decreasing dramatically and the rapid development of technology in agricultural production; (3) The relation between grain yield and the degree of land utilization is closer, and it is possible to increase grain production by strengthening the degree of land utilization; (4) The changing of land use structure influences grain yield less, however, the corresponding conditionality is enhancing. |
|
|
|