中国黄淮海平原の塩類集積地における植生を指標とした春播きコムギ(Triticum aestivum L.)の収量評価 Stand evaluation for spring wheat production with vegetation in salt-affected areas of Huang-Huai-Hai Plain, China

この論文にアクセスする

この論文をさがす

著者

抄録

  1.塩類集積地における作物生産性を評価するために,周辺植生の群落分類から立地の塩集積程度を推定し,春播きコムギ収量との関係を考察した. <BR>  2.周辺植生の群落分類では,Salsola collina-Eriochloa villosa群落, Suaeda glauca群落, Lactuca tatarica-Suaeda heteroptera群落, Phragmites communis群落, Suaeda heteroptera群落, Suaeda heteroptera-Aeluropus littoralis群落の6群落が識別された. <BR>  3.本調査の総出現種数はわずか20種で,いずれの調査区でも出現種類は5種以下と少なかった.また,いくつかの調査区では1種または2種の優占により特徴づけられた. <BR>  4.群落区分間で土壌の理化学性を比較すると,塩類濃度は,S. heteroptera-A. littoralis群落で最も高く0.74%, S. heteroptera群落で0.48%, P. communis群落で0.42%, L. tatarica-S. heteroptera群落で0.27%, S. glauca群落で0.24%, S. collina-E. villosa群落で0.06%と低下した.Na, ClおよびSO_4含量は塩類濃度の変化とおおむね対応した.K, Ca, Mgの各含量は,いずれもS. collina-E. villosa群落で有意に低い値を示した.NO_3含量では群落間で有意な差は認められなかった. <BR>  5.コムギ収量は稈長,穂数,果実重,1000粒種子重を測定し,いずれも土壌塩類濃度,Na, Cl, SO_4含量の変化と負の相関を示した.またこれらは土壌塩類濃度に対して,0.3%付近より急激に低下し,0.4%以上ではほとんど収穫されなかった.<BR>   6.以上の群落区分を指標として行ったコムギ栽培適地の推定ではコムギはS. collina-E. villosa群落,S. glauca群落の成立する立地において一定の収量を確保することが可能と考えられた.なお,L. tatarica-S. heteroptera群落の成立立地では減収が,その他の群落の成立立地ではほとんど収穫は期待できないと予想された.

Relation between spring wheat (Triticum aestivum L.) production and vegetation types were investigated in the saline soil areas of Huang-Huai-Hai Plain, China. The total of 23 quadrats were sampled and six plant communities were classified by tabular sorting and rearrangement : Salsola collina-Eriochloa villosa community, Suaeda glauca community, Lactuca tatarica- Suaeda heteroptera community, Phragmites communis community, Suaeda heteroptera community, and Suaeda heteroptera-Aeluropus littoralis community. These communities were consisted of only 20 species in total, most of stands had five species or less, and some of them were characterized by one or two dominant species. Some soil properties of the soil were compared between classified communities. The soil salinity was the highest in S. heteroptera-A. littoralis community (0.74%), followed by S. heteroptera community (0.48%), P. communis community (0.42%), L. tatarica-S. heteroptera community (0.27%), S. glauca community (0.24%) and S. collina-E. villosa community (0.06%). The rank for sodium, chlorine and sulfate content between the communities was roughly consistent with that of soil salinity. Content of potassium, calcium and magnesium was the lowest in S. collina-E. villosa community. The yields of spring wheat were measured by the plant height, the number of ear, the ear weight and the 1000-grain weight for each experimental fields that are independently established within the typical areas of each plant community. These measurements showed negative correlation between the yields of spring wheat and salt, Na, Cl, SO_4 in soil. The yields of spring wheat drastically decreased at 0.3% of soil salinity. It was concluded that adequate amount of wheat yields can be expected from both S. collina-E. villosa community and S. glauca community, whereas hardly any wheat harvest was expected from the other four communities.

収録刊行物

  • 植生学会誌

    植生学会誌 19(2), 73-81, 2002

    植生学会

参考文献:  23件中 1-23件 を表示

各種コード

  • NII論文ID(NAID)
    110008145262
  • NII書誌ID(NCID)
    AA11347548
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13422448
  • NDL 記事登録ID
    6414107
  • NDL 雑誌分類
    ZR3(科学技術--生物学--植物) // ZU4(書誌・図書館・一般年鑑--専門書誌)
  • NDL 請求記号
    Z18-3499
  • データ提供元
    CJP書誌  NDL  NII-ELS  J-STAGE 
ページトップへ