【摘 要】
：
针对地力衰退与维护这一林业研究热点,文中从林分生产力、土壤理化性质、土壤养分、土壤微生物、土壤酶活性、自毒作用6个方面阐述了马尾松人工林的地力现状。众多研究表明,
【机 构】
：
贵州大学林学院,贵州省林业调查规划院,贵州师范大学中国南方喀斯特研究院,贵州省林业厅,
论文部分内容阅读
针对地力衰退与维护这一林业研究热点,文中从林分生产力、土壤理化性质、土壤养分、土壤微生物、土壤酶活性、自毒作用6个方面阐述了马尾松人工林的地力现状。众多研究表明,马尾松人工林尚未出现地力衰退,其产生地力衰退的原因主要是不合理的营林措施。同时从轮作、混交林、发展林下植被、林地施肥、生态系统管理等方面介绍了马尾松人工林地力维护进展,并对马尾松人工林地力维护研究趋势进行了展望。
Aiming at the hotspot of the decline and maintenance of soil fertility, this paper describes the current situation of the productivity of Pinus massoniana plantations from six aspects: stand productivity, soil physical and chemical properties, soil nutrients, soil microorganisms, soil enzyme activity and autotoxic effects. Numerous studies have shown that the Pinus massoniana plantation has not yet suffered a decline in soil fertility. The main cause of its decline is the unreasonable silviculture measures. The paper also introduced the progress of the conservation of the masson pine plantation from the aspects of crop rotation, mixed forest, development of understory vegetation, woodland fertilization and ecosystem management. The trend of research on the conservation of masson pine plantation was also prospected.
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