摘要： 对土地生态系统随时间的演化状况进行了初步分析,并依据耗散结构理论,探讨了土地生态系统随时间演变的有关理论,构建了有关土地生态系统演化的函数模型.土地系统的演化经历了纯土地自然体--原始土地生态系统--土地自然生态系统--初级土地人工生态系统--高级土地人工生态系统等的不同阶段.人们对其认识也在不断地发生变化,自然体--资源--资产等.
关键词:
土地系统,
生态系统,
时间演化
Abstract: The evolvement status with time of the land ecosystem was discussed and the related theory was explained in this paper.The results showed that the evolvement of the land ecosystem has involved five stages :pure land nature system, original land ecosystem, land nature ecosystem, primary land manpower ecosystem and high-level land manpower ecosystem.The human's understanding of land has changed from nature body to resource, then to capital.
Key words:
Land system,
Ecosystem,
Time evolvement
中图分类号:
梁留科, 吴次芳, 曹新向. 土地生态系统演化的时间观[J]. 华北农学报, 2002, 17(4): 123-127. doi: 10.3321/j.issn:1000-7091.2002.04.027.
LIANG Liu-ke, WU Ci-fang, CAO Xin-xiang. Study on Evolution of Land Eco-system[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(4): 123-127. doi: 10.3321/j.issn:1000-7091.2002.04.027.