Changes in soil physico-chemical and microbiological properties during natural succession on abandoned farmland in the Loess Plateau

ISWC OpenIR > 水保所知识产出(1956---)

	Changes in soil physico-chemical and microbiological properties during natural succession on abandoned farmland in the Loess Plateau
	Wang Bing; Liu Guo Bin; Xue Sha; Liu, GB
	2011
发表期刊	ENVIRONMENTAL EARTH SCIENCES
卷号	62 期号:5 页码:915-925
摘要	The re-establishment of natural species-rich heath lands on abandoned farmland is one of the main measures in soil erosion control in the Loess Plateau of China. So, it is important to understand how the vegetation and soil properties develop after land abandonment. The objective of this study was to determine how physico-chemical properties, microbial biomass, and enzyme activities changed for abandoned farmland with an age sequence of 0, 1, 5, 7, 10, 15, 20, 25, 30, 40 and 50 years in Zhifanggou watershed (8.27 km(2)), Shaanxi Province, NW China. The results of this study indicate that species succession after land abandonment in the Zhifanggou watershed on the Loess Plateau resulted in a significant improvement in soil chemical and microbiological properties. Soil organic C, total N, available N and K, soil microbial biomass C, N and P, as well as alkaline phosphatase, catalase, saccharase, and cellulase activity increased with time since plantation establishment increased. In contrast, soil bulk density, pH, and polyphenol oxidase activity decreased after farmland abandonment. Urease and alpha-amylase decreased until 15 years at the early phase of species succession, and then increased. However, there was no significant change in total P and available P during the restoration. Results only implied the tendency that the herbage was developing toward shrub. Although secondary succession plays an important role which improved soil properties after farmland abandonment, the values of these parameters were still much lower than native forest in 50 years. Thus, vegetation recovery after farmland abandonment in a semi-arid environment would be slow and the improvement of soil properties in the Loess Plateau is likely to require a considerably long period of time.
关键词	Loess Plateau Abandoned Farmland Soil Enzyme Microbial Biomass
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	sbir.nwafu.edu.cn/handle/361005/4713
专题	水保所知识产出(1956---)
通讯作者	Liu, GB
推荐引用方式 GB/T 7714	Wang Bing,Liu Guo Bin,Xue Sha,et al. Changes in soil physico-chemical and microbiological properties during natural succession on abandoned farmland in the Loess Plateau[J]. ENVIRONMENTAL EARTH SCIENCES,2011,62(5):915-925.
APA	Wang Bing,Liu Guo Bin,Xue Sha,&Liu, GB.(2011).Changes in soil physico-chemical and microbiological properties during natural succession on abandoned farmland in the Loess Plateau.ENVIRONMENTAL EARTH SCIENCES,62(5),915-925.
MLA	Wang Bing,et al."Changes in soil physico-chemical and microbiological properties during natural succession on abandoned farmland in the Loess Plateau".ENVIRONMENTAL EARTH SCIENCES 62.5(2011):915-925.

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