Acta Agrestia Sinica

›› 1998, Vol. 6 ›› Issue (2): 139-146.DOI: 10.11733/j.issn.1007-0435.1998.02.009

Previous Articles     Next Articles

Evaluation on the Ecoclimatic Suitability for Alfalfa Harvested Period in the Region of Yellow River Delta

Niu Jianzhong1, Shi Dekuan2   

  1. 1. Management Office of Beijing Tiantan Park, Beijing 100051;
    2. Institute of Grassland Science, China Agricultural University, Beijing 100094
  • Online:1998-05-15 Published:1998-05-15

黄河三角洲地区苜蓿收获时期生态气候适宜性评价

牛建忠1, 史德宽2   

  1. 1. 北京市天坛公园管理处, 北京, 100050;
    2. 中国农业大学草地研究所, 北京, 10009

PDF

Abstract: Analyze the climatic suitability of growing period for alfalfa harvested and meteorological data with thirty-eight years in Wudi County located in the region of Yellow River delta, Shandong Province, the eco-climatic suitability for alfalfa harvested period in that region were evaluated. The results showed as follows:It is very suitable for alfalfa cutting and suncuring in the first cutting(May 10~25)and the third cutting(last day of September and the first day of October), but no the second(July, 15~30).

Key words: Alfalfa(Medicago sativa L.), Harvested period, Ecoclimatic suitability, Rainfall insurance rate, The region of yellow river delta

摘要： 本文通过对黄河三角洲地区山东省无棣县38年气象资料和苜蓿适宜收获物候期分析,评价该地区苜蓿收获时期的生态气候适宜性。结果表明,黄河三角洲地区第一茬苜蓿(5月10~25日)和第三茬(9月末~10月初)前着刈割晒制干草是完全可以成功的,第二茬(7月15~30日)苜蓿很难刈割晒制干草。

关键词: 苜蓿, 收获时期, 生态气候适宜性, 降水保证率, 黄河三角洲地区