| 滇池流域土地利用结构及其生态评价的初步研究 |
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| 引用本文： | 杨树华,杨桂华.滇池流域土地利用结构及其生态评价的初步研究[J].云南大学学报(自然科学版),1992,14(2):202-210. |
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| 作者姓名： | 杨树华 杨桂华 |
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| 作者单位： | 云南大学生态学与地植物学研究所
(杨树华)，云南大学生态学与地植物学研究所(杨桂华) |
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| 基金项目： | 云南省应用基础研究基金项目 |
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| 摘 要： | 本文以构成滇池流域生态系统的4个主要土地系统为基本单元,采用优势度指数,多样性指数和均匀性指数分析了每个土地系统的土地利用结构,并根据土壤侵蚀模数和土地生产力对土地利用结构进行了生态评价.论文讨论了多样性指数在土地利用评价中的生态学意义和流域上游土地利用与流域生态系统平衡的关系,提出了协调和改进滇池流域土地利用结构的建议和措施.
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| 关 键 词： | 滇池流域 土地利用 生态评价 |
Prel iminary Study on the Structure of Land Utilization and Its Ecoloeical Evaluation in Dianchi Lake Watershed |
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| Yang Shuhua Yang Guihua.Prel iminary Study on the Structure of Land Utilization and Its Ecoloeical Evaluation in Dianchi Lake Watershed[J].Journal of Yunnan University(Natural Sciences),1992,14(2):202-210. |
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| Authors: | Yang Shuhua Yang Guihua |
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| Institution: | Instituie of Ecology and Geobotany. Yunnan Universitv |
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| Abstract: | In this paper. the structures of land utilization of four major land system consisting of Dianchi lake watershed ecosystem arc studied by using the dominance indexes, the diversity indexes and evenness indexes. The ecological effect are evaluated by means of the soil erosion amount unit atea and prodactivity of land system. This paper discussed the ecological meaning of diversity indexes in evaluating land utilization status and the relationship between the land use of upper reaches of watershed and balance ot watershed ecosystem, and recommemded the mathoods of cocerting and improving the land utilization structure of Dianchi lake watershed. |
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| Keywords: | Dianchi lake watershed land utilization diversity indexes ecological evalution |
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