[Changes of plant community biomass and soil nutrients during the vegetation succession on abandoned cultivated land in desert steppe region].
Ying Yong Sheng Tai Xue Bao
; 22(12): 3145-9, 2011 Dec.
Article
in Zh
| MEDLINE
| ID: mdl-22384580
ABSTRACT
By the method of substituting temporal serial with spatial serial, and taking five abandoned cultivated lands with different ages (1, 4, 9, 12, and 20 years) in desert steppe region as test objects, this paper studied the change characteristics of plant community biomass and soil nutrients during vegetation succession. With the increasing abandoned years, the plant community aboveground biomass on the abandoned lands increased after an initial decrease, whereas the total nitrogen, total phosphorus, organic carbon contents, and carbon density in 0-60 cm soil layer increased first, decreased then, and increased again, with the maximum values of soil total nitrogen and phosphorus contents appeared on the abandoned lands with the ages 4 and 20 years. During vegetation succession, the effects of soil total nitrogen and organic carbon on plant community biomass were greater than those of soil total phosphorus and soil bulk density.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Soil
/
Trees
/
Crops, Agricultural
/
Conservation of Natural Resources
/
Poaceae
Country/Region as subject:
Asia
Language:
Zh
Journal:
Ying Yong Sheng Tai Xue Bao
Journal subject:
SAUDE AMBIENTAL
Year:
2011
Document type:
Article
Affiliation country:
Country of publication:
CHINA
/
CN
/
REPUBLIC OF CHINA