雷州半岛短轮伐期桉树人工林施肥技术合理性分析
|
摘要
根据短轮伐期桉树纸浆用材林不同林龄桉树(Eucalyptus)的树高、胸径、材积的生长特性,以及不同林龄桉树纯林土壤化学性质的特点,分析一个轮伐期内桉树纯林土壤养分变化,结果表明中林集团雷州林业局有限公司现有的施肥技术不尽合理,造林后第2年氮素缺乏,第4年磷、钾素不足,第5年氮、钾素含量偏低,而第3年土壤基本元素含量相对偏高,因此以维持林地当前土壤肥力水平为目的,对林场现行的施肥方案提出了相应的调整建议,可有针对性地补充该生长阶段所缺乏的元素。
According to the characteristics of the tree height, diameter at breast height and volume growth, as well as soil chemical properties of different age-old eucalyptus trees in short-rotation Eucalyptus pulp forest, it was found that existing fertilization technology of China Forestry Group Leizhou Forestry Bureau Co., Ltd. was not reasonable according to the changes of soil nutrients in the Eucalyptus forests during a rotation period, nitrogen deficiency in the second year, phosphorus and potassium deficiency in the fourth year, nitrogen and potassium content in the fifth year were low, and the basic elemental content of soil in the third year was relatively high. Therefore, in order to maintain the current soil fertility of the forest land, we put forward some suggestions for adjusting the current fertilization plan. Fertilization should be targeted to supplement the elements lacking in this stage of growth.
According to the characteristics of the tree height, diameter at breast height and volume growth, as well as soil chemical properties of different age-old eucalyptus trees in short-rotation Eucalyptus pulp forest, it was found that existing fertilization technology of China Forestry Group Leizhou Forestry Bureau Co., Ltd. was not reasonable according to the changes of soil nutrients in the Eucalyptus forests during a rotation period, nitrogen deficiency in the second year, phosphorus and potassium deficiency in the fourth year, nitrogen and potassium content in the fifth year were low, and the basic elemental content of soil in the third year was relatively high. Therefore, in order to maintain the current soil fertility of the forest land, we put forward some suggestions for adjusting the current fertilization plan. Fertilization should be targeted to supplement the elements lacking in this stage of growth.
引文
[1]朱成庆.雷州半岛桉树工业人工林培育模式评价[D].哈尔滨:东北林业大学, 2006.
[2]林书蓉,李淑仪,廖观荣,等.短轮伐期桉树人工林科学施肥的研究[J].林业科学研究, 1999(3):56-63.
[3]赵贵,丁效东,李淑仪,等.不同施肥对雷州半岛桉树林地土壤培肥效应研究[J].桉树科技, 2012(2):8-14.
[4]赵贵,丁效东,王荣萍,等.雷州半岛桉树不同品种和树龄对磷吸收的影响[J].浙江农林大学学报, 2012(3):407-411.
[5]肖路明.尾叶桉MLA无性系林分不同施肥处理经济效益分析[J].广东林业科技, 2003,19(2):1-4.
[6]莫晓勇.桉树人工林培育的理论与方法[M].北京:中国林业出版社, 2005.
[7]LY/T1228-1999森林土壤全氮的测定
[8]LY/T1229-1999森林土壤水解性氮的测定
[9]LY/T1232-1999森林土壤全磷的测定
[10]LY/T1232-1999森林土壤全磷的测定
[11]LY/T1234-1999森林土壤全钾的测定
[12]LY/T1236-1999森林土壤速效钾的测定
[13]LY/T1237-1999森林土壤有机质的测定及碳氮比的计算
[14]LY/T1239-1999森林土壤pH值的测定
[15]蒋林,樊吉尤,何斌,等.尾巨桉人工林生长特性的研究[J].林业工程学报, 2011, 25(6):68-70.
[16]杨卫星,庞赞松,银彬吾,等.桂西南2种更新方式尾巨桉人工林生长特性的比较[J].广西林业科学, 2018,47(1):47-51.
[17]廖观荣,林书蓉,李淑仪,等.雷州半岛桉树人工林地力退化的现状和特征[J].土壤与环境, 2002(1):25-28.
[18]蒙世协,杨锋,闭革林,等.不同配比桉树专用肥的施用效果[J].广西林业科学, 2015(2):191-193.
[19]蔡琼,丁贵杰.黔中地区一、二代马尾松人工林土壤微生物数量及生物活性研究[J].林业科学研究, 2013(2):247-251.
[2]林书蓉,李淑仪,廖观荣,等.短轮伐期桉树人工林科学施肥的研究[J].林业科学研究, 1999(3):56-63.
[3]赵贵,丁效东,李淑仪,等.不同施肥对雷州半岛桉树林地土壤培肥效应研究[J].桉树科技, 2012(2):8-14.
[4]赵贵,丁效东,王荣萍,等.雷州半岛桉树不同品种和树龄对磷吸收的影响[J].浙江农林大学学报, 2012(3):407-411.
[5]肖路明.尾叶桉MLA无性系林分不同施肥处理经济效益分析[J].广东林业科技, 2003,19(2):1-4.
[6]莫晓勇.桉树人工林培育的理论与方法[M].北京:中国林业出版社, 2005.
[7]LY/T1228-1999森林土壤全氮的测定
[8]LY/T1229-1999森林土壤水解性氮的测定
[9]LY/T1232-1999森林土壤全磷的测定
[10]LY/T1232-1999森林土壤全磷的测定
[11]LY/T1234-1999森林土壤全钾的测定
[12]LY/T1236-1999森林土壤速效钾的测定
[13]LY/T1237-1999森林土壤有机质的测定及碳氮比的计算
[14]LY/T1239-1999森林土壤pH值的测定
[15]蒋林,樊吉尤,何斌,等.尾巨桉人工林生长特性的研究[J].林业工程学报, 2011, 25(6):68-70.
[16]杨卫星,庞赞松,银彬吾,等.桂西南2种更新方式尾巨桉人工林生长特性的比较[J].广西林业科学, 2018,47(1):47-51.
[17]廖观荣,林书蓉,李淑仪,等.雷州半岛桉树人工林地力退化的现状和特征[J].土壤与环境, 2002(1):25-28.
[18]蒙世协,杨锋,闭革林,等.不同配比桉树专用肥的施用效果[J].广西林业科学, 2015(2):191-193.
[19]蔡琼,丁贵杰.黔中地区一、二代马尾松人工林土壤微生物数量及生物活性研究[J].林业科学研究, 2013(2):247-251.