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Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (29): 61-65.doi: 10.11924/j.issn.1000-6850.casb16120036

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Quality Change and Exploitation and Utilization of Abandoned Land with Different Years in High Altitude Area of Central Yunnan

Wen Jingyuan, Li Xiaoying, Shen Jiayan   

  1. (College of Environmental Science and Engineering, Southwest Forestry University, Kunming 650224)
  • Received:2016-12-07 Revised:2017-09-24 Accepted:2017-02-24 Online:2017-10-24 Published:2017-10-24

Abstract: For the further development and utilization of idle resources of abandoned land, need to understand the occurrence and development of soil quality changes after abandonment, in Luquan County of Kunming, the Zehei country abandoned land in different years (0a, 5a, 10a, 15a, 20a) of soil nutrient and soil enzyme activities as the object of study, the soil nutrient area of 2500 meters above sea level, the relationship between the enzyme activity and the two, and the analysis of different life fallow soil quality by soil nutrient evaluation index and enzyme activity index. The results showed that: on the whole, the soil nutrient decreased first and then increased with the increased length of the process, soil enzyme activity increases gradually and with the establishment of vegetation population and stable trend. Most of the soil nutrient and the relationship between highly significant between soil enzyme activity and two, so it can be through the implementation of organic fertilizer indirect regulation other soil nutrients and enzyme activity of soil nutrient and enzyme activity; Effect of vegetation types change from abandoned last year to grow crops and fallow; and put forward the corresponding suggestions on how to develop the use of land resources in high altitude area.