| Changes of soil microorganism of artificial Pinus sylvestris var.mongolica in Mu Us sandland |
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| DOI：10.7606/j.issn.1000-7601.2013.01.29 |
| Key Words: soil microorganism sand-fixing Pinus sylvestris var.
mongolica Mu Us sandland Yulin sandy area |
| Author Name | Affiliation | | LI Luping | College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China
Key Laboratory of Agricultural Resources and Ecosystem Remediation of Loess Plateau, Ministry of Agriculture, Yangling,
Shaanxi 712100, China
| | LIAO Chaoying | College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China
Key Laboratory of Agricultural Resources and Ecosystem Remediation of Loess Plateau, Ministry of Agriculture, Yangling,
Shaanxi 712100, China
| | LI Xiaoming | College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China
Key Laboratory of Agricultural Resources and Ecosystem Remediation of Loess Plateau, Ministry of Agriculture, Yangling,
Shaanxi 712100, China
| | SUN Changzhong | Experimental Center of Forestry in North China, Chinese
Academy of Forestry, Beijing 102300, China | | DUAN Minfu | College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China
Key Laboratory of Agricultural Resources and Ecosystem Remediation of Loess Plateau, Ministry of Agriculture, Yangling,
Shaanxi 712100, China
| | YANG Xiaojuan | College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China
Key Laboratory of Agricultural Resources and Ecosystem Remediation of Loess Plateau, Ministry of Agriculture, Yangling,
Shaanxi 712100, China
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| Abstract: |
| Soil microorganism of artificial
Pinus sylvestris var.
mongolica in Mu Us sandland were measured. The results showed that: soil
bacteria, soil actinomycetes and soil fungi of different plantation ages of art
ificial
Pinus sylvestris var.
mongolica were different, soil bacteria and
soi
l fungi increased as the plantation age went by; soil actinomycetes rose signifi
cantly during the CK, 7～23 year period, and it peaked at the 23rd year and drop
ped
apparently at the 31rd year. The three types of microorganism decreased as the s
oil depth deepened. and the distribution of them in different dune part
s presented as: interdune land＞leeward slope＞windward slope＞dune tops. After
artificial
Pinus sylvestris var.
mongolica was established on the wind d
rift
sand, the number of soil microorganism rised, soil fertility level was increased. |
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