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	Comparing the soil quality changes of different land uses determined by two quantitative methods
	Fu, BJ; Liu, SL; Lu, YH; Chen, LD; Ma, KM; Liu, GH
	2003
会议名称	2nd International Conference on Landscape Ecology of Asia and Pacific Region
会议日期	SEP 22-25, 2001
会议地点	LANZHOU, PEOPLES R CHINA
关键词	land use deforestation soil quality quantitative methods comprehensive evaluation Wolong
英文摘要	Soil quality is one of the most important environmental factors in sustaining the global biosphere and developing sustainable agricultural practices. A study was initiated in Wolong Nature Reserve, Sichuan Province, China to elucidate the soil quality changes of natural secondary succession, forest planting and agricultural practices after deforestation in the humid mountainous region. The soil qualities of six land use types (natural forestland, grassland, shrub land, secondary forestland, cultivated land and reforested land) were compared using two quantitative methods: the integrated soil quality index (QI) and soil deterioration index (DI). The QI values of natural forestland, grassland, shrub land, secondary forestland, cultivated land, reforested land were 0.8039, 0.3277, 0.9127, 0.6881, 0.0285 and 0.3183, respectively. The DI values were 0 %, - 14 %, 12 %, 1 %, - 26 % and - 18 % respectively. Both indexes suggested that shrub, land can restore soil properties. To compare the two methods more directly, a deduced index QI' based on QI value was developed. The results showed that DI and QI' had a very high linear correlation coefficient (r = 0.9775) despite the values were different. Both methods were efficient in evaluating the soil quality levels and DI was a more simple way in soil quality assessment, while QI could show more ecological meanings.
ISSN号	1001-0742
内容类型	会议论文
源URL	[http://ir.rcees.ac.cn/handle/311016/24792]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Fu, BJ,Liu, SL,Lu, YH,et al. Comparing the soil quality changes of different land uses determined by two quantitative methods[C]. 见:2nd International Conference on Landscape Ecology of Asia and Pacific Region. LANZHOU, PEOPLES R CHINA. SEP 22-25, 2001.

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