杨树人工林连作地力维持技术的探讨

›› 2007, Vol. 43 ›› Issue (zk): 58-64.

杨树人工林连作地力维持技术的探讨

刘福德^1,2 姜岳忠³ 王华田¹ 王迎⁴ 孔令刚¹

1.山东农业大学林学院,泰安271018；2.南京大学生命科学学院森林生态与全球变化实验室南京210093；3.山东省林业科学研究院,济南251000；4.山东省泰山林业科学研究院,泰安271000

收稿日期:2006-04-25 修回日期:1900-01-01 出版日期:2007-10-25 发布日期:2007-10-25

Soil Productivity Maintenance Technique of Poplar Plantation under Continuous Cropping

Liu Fude^1,2,Jiang Yuezhong³,Wang Huatian¹,Wang Ying⁴,Kong Linggang¹

1.College of Forestry,Shandong Agricultural University Tai'an 271018;2.Laboratory of Forest Ecology and Global Change College of Life Science,Nanjing University Nanjing 210093;3.Shandong Academy of Forestry Jinan 251000;4.Taishan Academy of Forestry Tai'an 271000

Received:2006-04-25 Revised:1900-01-01 Online:2007-10-25 Published:2007-10-25

摘要/Abstract

摘要： 利用田间试验方法,对山东省莒县沭河流域杨树多代经营人工林产区不同林地间作农作物、林地抽沙换土、杨树人工林品种间轮作等措施对杨树人工林多代连作地力维持效果进行研究。结果表明:抽沙换土有利于胸径和树高生长,土壤有机质、速效氮、速效磷、速效钾和微量元素Cu、Zn、Mn的含量增加,土壤脲酶、过氧化物酶、多酚氧化酶活性和土壤微生物总量增加,其中真菌、细菌、放线菌分别增长了1.55倍、2.05倍和1.24倍;主伐更新更换不同品种以后,土壤有机质、土壤速效氮和速效钾含量3年保持增长,土壤脲酶、过氧化物酶、多酚氧化酶活性增加,土壤微生物总量提高,其中真菌、细菌、放线菌分别增长了3.18～23.91倍、3.40～28.71倍和0.71～2.80倍;林地间作有利于提高土壤有机质、速效磷、速效钾和微量元素Fe、Mn含量,土壤酶活性和土壤微生物数量增加,其中真菌、细菌、放线菌分别增长了1.38～3.39倍、1.28～7.73倍和0.79～3.11倍。间作林地的胸径和树高较对照分别提高了15.25%～37.84%和8.17%～29.12%。

关键词: 杨树人工林, 连作, 地力维持

Abstract: In order to study the results of soil productivity maintenance measurements,soil nutrient,soil enzyme activities and soil microbes of intercropping forestland,soil replacing(replacing sand with fertile farming soil) forestland and cultivar-alternated forestland were measured in the field along the Shu River in Juxian County in Shandong Province.The results showed that in soil-replaced forestland,the DBH and the height of stands increased significantly,and soil nutrient,the activities of urease,peroxidase,polyphenol and the number of soil microbes were improved,bacteria,fungi,actinomyces increased 1.55,2.05,1.24 times compared with CK.Soil organic matter,available N,available K,the activities of soil urease,peroxidase,polyphenol,the amount of soil microbes of cultivar-alternated forestland increased,and bacteria,fungi,actinomyces increased 3.18～23.91,3.40～28.71,0.71～2.80 times respectively.Intercropping was beneficial to soil organic matter,available P,available K,trace element Fe,Mn,the activities of soil enzyme,the amount of soil microbes.And bacteria,fungi,actinomyces increased 1.38～3.39,1.28～7.73,0.79～3.11 times respectively,the DBH and the height of stands increased 15.25%～37.84%,8.17%～29.12% respectively.

Key words: poplar plantation, continuous cropping, soil productivity maintenance

刘福德;姜岳忠王华田王迎孔令刚. 杨树人工林连作地力维持技术的探讨[J]. , 2007, 43(zk): 58-64.

Liu Fude;Jiang Yuezhong;Wang Huatian;Wang Ying;Kong Linggang. Soil Productivity Maintenance Technique of Poplar Plantation under Continuous Cropping[J]. , 2007, 43(zk): 58-64.

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