[1]FENG Jianmin,WANG Li,WEN Qi.Land Use Changes and Its Rationality Evaluation in the Yushenfu Mining Area[J].Research of Soil and Water Conservation,2015,22(01):188-193.
Copy
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 01
Page number:
188-193
Column:
Public date:
2015-02-28
- Title:
-
Land Use Changes and Its Rationality Evaluation in the Yushenfu Mining Area
- Author(s):
-
FENG Jianmin1, WANG Li1, WEN Qi2
-
1. College of Tourism and Resources & Environment, Xianyang Normal University, Xianyang, Shaanxi 712000, China;
2. School of Resources and Environment, Ningxia University, Yinchuan 750021, China
-
- Keywords:
-
Yushenfu mining area; land use change; rational degree
- CLC:
-
F301
- DOI:
-
-
- Abstract:
-
Land use/cover change is the important and primary causes of global environment change and core question of reasonable land use and sustainable development. Yushenfu mining area is an important energy chemical industry base and an extremely vulnerable area as well in China. The TM images in 1990 and 2006, and ETM+ images in 2000 were taken as underlying data resources. Combining with land use change quantity analytical method and GIS and RS technology, the authors analyzed land use changes and their rational degrees in the Yushenfu mining area from 1990 to 2006 by adopting the land use dynamics, land use degree and rational degree of land use changes. The results showed that change rate of land use varied faster and land use degree was lower in Yushenfu mining area compared with other region, and the fastest decline occurred in farmland while the fastest increasing land was used as urban construction and industrial land. In the two study periods, rational degree of land use changes has decreased by 2.85%, and the most reasonable land use changes were unutilized land while the most unreasonable lands were cultivated land and water area. Meanwhile, the RDs of farmland and woodland had decreased by 2.91% and 8.7%, respectively. On the contrary, the RDs of grass land, water area, urban construction and unutilized land had increased by 18.77%,22.73%,34.87% and 12.93%,respectively. The RD of industrial land had the smallest change. Implementing the policy of returning cultivated land to forestland had obvious influence on the process of land use change, which caused land use phase to change from development to the recession. Therefore, with respect to land use planning and policy implementation in the future, the key task is not only to determine the reasonable scale of the returning farmland to forestland, but also strengthen the vegetation protection and take measures to change abandoned farmland into vegetation cover as soon as possible.