论文部分内容阅读
以世界各国森林长期立地生产力研究为背景,结合我国毛竹林经营和研究情况,对毛竹林长期立地生产力的现状、影响因素以及研究策略等方面进行了论述。尝试构建了研究这一问题的技术路线和系统框架。提出使用时序法、回溯法和长期定位观测相结合的技术方法克服“长期”研究的时间跨度,研究长期立地生产力对经营措施的干扰反应,并试用立地分类和评价、专家系统和计算机模拟模型等技术方法评价和预测经营措施对长期立地生产力的作用规律,为通过改变现行经营措施调控长期立地生产力提供理论和技术。以竹林生态系统理论研究为基础,探索在林分结构和林下植被以及林地土壤管理方面的生态系统管理技术,降低现有经营措施对竹林生态系统的稳定性、多样性的破坏,降低经营措施对水土流失、林外水环境富营养污染作用的风险,提高林地自身对外界干扰的自然承载力和恢复力,寻找有效维护毛竹林长期立地生产力和实现可持续经营的生态系统管理理论和技术体系。
Based on the long-term productivity study of forests in various countries in the world and the management and research situation of Moso bamboo forests in our country, this paper discusses the status quo, influential factors and research methods of long-term productivity of Moso bamboo forests. Attempt to construct the technical route and system framework to study this problem. The paper proposes a time-span method, a backtracking method and a long-term positioning method to overcome the time span of “long-term” research, to study the long-term in-site productivity disruption to business practices and to test site classification and evaluation, expert systems and computer simulation models Technical methods to evaluate and predict the operating rules of long-term on-site productivity, and to provide theories and technologies for controlling long-term on-site productivity by changing current management measures. Based on the research of bamboo ecosystem theory, this paper explores the ecosystem management techniques of stand structure and forest undergrowth and soil management in forestland so as to reduce the damage to the stability and diversity of the bamboo forest ecosystem by the existing management measures and reduce the management measures The risk of soil erosion, eutrophication in the water outside the forest, the natural carrying capacity and resilience of woodland itself to the outside world, and the ecosystem management theory and technology system to effectively maintain the long-term productivity of the site and to achieve sustainable management .