黑木相思家系适地适树品种综合评价
Comprehensive Evaluation of Suitable Land and Tree Varieties of Acacia melanoxylon Family
[目的]杉木、桉树人工林高度集约经营和连载代次的递增导致人工林出现土壤养分周转能力下降等问题,土壤肥力质量逐代降低已成为人工林可持续经营的主要障碍。为选出适宜南方山地此土壤条件下适应性和改土效果优良的黑山相思家系。揭示黑木相思土壤养分的空间分异规律与地形变化的关系。[方法]本文以福清灵石山场杉木采伐迹地上营造的 15 年生 7 个黑木相思家系(M1～M7)为研究对象,采用经典统计学、描述性统计、地统计学方法和GIS技术,通过对林木生长特性、土壤物…查看全部>>
[Objective]The highly intensive management of fir and eucalyptus plantations and the increment of successive generations have led to the problems of decreasing soil nutrient turnover capacity in plantations,and the decrease of soil fertility quality from generation to generation has become a major obstacle to sustainable management of plantations.In order to select Acacia nigra family with excellent adaptability and soil modification effect suitable for this…查看全部>>
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