农林复合经营研究──桉树间种山毛豆对林木和土壤的影响

Study on Agroforestry Managemeut-Effects of Interplanting of Eucalyptus Plantation with White Tephrosia on Tree Growth and Soil.

本文研究了桉树人工林间种山毛豆的适应性及其对林木和土壤的影响．结果表明，在一年生桉树人工林下，山毛豆生长正常，以后，随着林地的逐浓荫蔽，生长有逐渐衰退现象；间种山毛豆当年，可能对林木生长有一定影响，但可通过改善间种方式而消除．第二年以后对桉树生长的促进作用逐渐显著；间种山毛豆对提高土壤肥力也有一定作用，对促进林业生产的持续发展有重要意义．

Adaptability of interplanting of eucalyptus plantation with white tephrosia (Tephrosia candida DC.) and foe effects on tree growth and soil are roperied in this paper. Researcch results showed that under the plantation of eucalyptus in the first year, white tephrosia grew normally, then with the shading of forest land, the growth was on the decline. In the first year, the interplanting might have some influence on the growth of thes, hot it could ho removed by improving interplanting ways, and in the second year, the interplanting could promote the growth of eucalypthe. Moreover, the interpanting had a positive effect on soil fertility and bad sugnificance to the sustainable development of forestry production.