Arable land increase in northern China:facts and findings |
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Authors: | SONG Jin-ping LI Xiu-zhen |
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Institution: | 1. Dept. of Resources and Environment, Beijing Normal University, Beijing 100875, China|
2. Institute of Applied Ecology, CAS, Shenyang 110015, China |
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Abstract: | Based on investigations between 1986 and 1996 in the four provinces of northern China, major problems on land reclamation were discovered. The increase of arable land was mainly low quality fields from barren land and was susceptible to disertification and water-induced soil erosion. In the meantime, large area of grassland and forestland was lost or degraded, and original fertile arable land was occupied for residential and industrial use. As a result the environment deteriorated. This change was mainly caused by economic development, population growth, inferior natural conditions, and irrational management strategies. Finally some positive measures were suggested to stop this negative cycle. |
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Keywords: | arable land reclamation land resources land quality |
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