Hu Jianzhong.Integrative Evaluation on Soil Quality and productivity of Populus davidiana Dode Mixed Forest[J].Research of Soil and Water Conservation,1995,2(01):44-50.
山杨混交类型生产力及土壤质量综合评价
- Title:
- Integrative Evaluation on Soil Quality and productivity of Populus davidiana Dode Mixed Forest
- Keywords:
- Populus davidiana Dode; man-made forest; mixed forest; productivity; evaluation of soil; moisture and fertilirer
- 摘要:
- 对黄土高原沟壑区4种人工山杨林分的试验研究表明，山杨沙棘混交林年生产力最高（为各对比的2.2～8.2倍），改良土壤作用最好，具体表现在林地土壤水分储量、供水能力、养分容量、供肥能力均为最大。用试验区各对比土壤水肥的数量和强度指标建立的土壤质量综合评价体系是很成功的。土壤质量评价结果与各对比年生产力相当吻合，并有极显着的线性关系。文中指出，黄土高原应重视山杨沙棘混交林的营造工作。
- Abstract:
- it was demonstrated that the mixed forest of Populus davidiana Dode had the highest yearly productivity and the best effect of soil improvement such as the bigesst ability of soil moisture content, soil moistur supply, nutrient content and fertilizer supply by experiments of 4 kinds of man-made forest of Populus davidiana Dode in gullly region of the loess plateau. It is successful that comprative evaluation system of soil quality was developed by data and intensity index of the contract soil moisture and fertilizer in experimental filed. The results of soil evaluation tallied with that of evely year’s contract productivity, and they was significant at the 0.001 level of probability. It was pointed out that attention should be strengthened the afforest work of Populus davidiana Dode mixed forest in the Loess plateau.
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备注/Memo
收稿日期:1994-6-30