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  Location: Home >> Key Laboratories >> Luancheng National Station of Agricultural Ecosystem, China National Ecosystem Observation and Research Network
Luancheng National Station of Agricultural Ecosystem, China National Ecosystem Observation and Research Network
Luancheng station, established in 1981, is one of the field stations of the Chinese Ecosystem Research Network (CERN) and a member of Global Terrestrial Observation System (GTOS). The station is also a demonstration base for modern agricultural technologies in Hebei province. In 2005, the station became one of the stations of the Chinese National Ecosystem Observation and Research Network (CNERN). In 2016, the station joined the International Long TERM Ecological Research Network (ILTER).
 
The primary goals of the station are to implement long-term comprehensive observations on the structure, function, and evolvement of the agro-ecosystem; to clarify the mechanisms of the energy, water, and nutrient transfer processes of the farmland ecosystem and the theoretical basis for interface regulation; and to study the structural functions of the integrated system of agro-ecology and economy.
 
HOME PAGE: http://lc.sjziam.ac.cn
DIRECTOR: Yanjun Shen
VICE DIRECTORS: Zhongmin An, Yisong Cheng
PRINCIPAL INVESTIGATORS: Diaoguo An, Chunsheng Hu, Junming Li, Mengyu Liu, Lin Ma, Yanjun Shen, Shiqin Wang, Xiying Zhang, Zhenngbin Zhang
SCIENTIFIC STEERING COMMITTEE
CHAIR: Changming Liu
VICE CHAIRS: Qiang Yu, Chunsheng Hu
MEMBERS: Bojie Fu, Tieqing Huang, Baoguo Li, Junming Li, Mengyu Liu, Zhu Ouyang, Tusheng Ren, Shanmin Shen, Yanjun Shen, Guirui Yu, Jiabao Zhang, Lifeng Zhang, Xiying Zhang
 
MAIN OUTPUTS
1. Totally, up to 54 papers were published in 2016, 31 of which were on the SCI indexed journals.
2. Four patents were granted in 2016, two of which were invention patents. Six patents, including three inventive, have been applied for certification.
3. Two projects have been awarded the provincial Science and Technology Progress Award and the Natural Science Award.
 
MAIN RESEARCH PROGRESSES
1. Determined the soil organic/inorganic carbon storage in the soil profile at 0–100 cm depths and the concentration of dissolved inorganic carbon in soil leachate in four kinds of N application treatments (0, 200, 400, and 600 kg N ha-1 y-1) for 15 years in the North China Plain.
2. Quantified nutrient flows and losses in the whole manure management chain (from animal feeding to manure application to land) in China and potential to reduce nutrient losses and increase the amount of manure applied to crop land and replace fertilizer NPK.
3. Established the nitrification-related pathways (including ammonia oxidation) and heterotrophic denitrification as the most predominant sources of N2O emissions from soil ecosystems.
4. Proposed a series of technologies to save irrigation water through altering the sawing date and spaces according to effective rainfall.
5. Rectified ET algorithm using P-T model under a film-mulched farmland and found that the annual water consumption from pear garden is about 70 mm larger than that from croplands.
6. Quantified that water in deep vadose zone moves mainly as a type of matric flow by a rate of ~1.14 m/y with loading large amount of solutions. Denitrification acts as a major factor to reducing nitrate leaching to aquifers in plain region, while dinitrogen is little in mountain aquifers.
7. Clarified the nexus relations among regional cropping pattern, water resources, and grain yield in semiarid NCP, and pointed out that the upper limit of irrigation land should be restrained as much as 4 million ha in the NW arid region. These findings posed great understanding to agricultural water saving practices at the dimension of crop drought resistance physiology, brackish water utilization, efficient water and nitrogen management at field scale, as well as understanding to the agriculture-water-ecology nexus relations or even the appropriate reclamation extent at region scale.
8. Characterized a new Pm2 allele, PmFG, which confers powdery mildew resistance in the wheat germplasm Line FG-1, and seven closely linked markers were developed for PmFG.
9. The new variety of wheat "Kenong 2011" was certified. In addition, a number of quantitative trait loci (QTLs) for wheat kernel size, quality and tolerance to low-N stress were characterized using a recombinant inbred line population derived from Kenong 9204 × Jing 411.
10. A transcriptomic analysis of the responses to water deprivation and resupply in Triticum urartu was carried out, which provided gene and molecular marker resources for the genetic improvement of drought resistance in wheat and related crops.