天然林资源保护一期工程生态成效评估——以甘肃小陇山地区为例

发布时间：2019-05-16 10:24

【摘要】：天然林资源保护工程是在中国广泛开展的一项重要生态建设工程。本文在构建生态多元评估指标体系的基础上,评估工程实施的生态成效,对于其进一步决策与管理具有重要的科学意义。通过遥感、生态系统质量等多源数据融合,采用生态系统宏观格局、生态系统质量、生态系统服务等方面指标的现状和时空变化特征,评估小陇山地区天然林保护一期工程(2000-2010年)实施成效。结果表明:(1)工程实施后,小陇山地区落叶阔叶林、落叶阔叶灌木林、草地等生态系统类型的面积大幅度增加,生态系统宏观状况转好,其中黄河流域生态系统宏观状况转好趋势明显好于长江流域。(2)研究区叶面积指数(LAI)和最大植被覆盖度(FC)在2000-2010年期间的多年变化斜率分别为0.022和0.510,生态系统质量上升趋势明显。其中黄河流域改善程度高于长江流域。(3)2010年研究区固碳量为700.20 t/hm2,相比工程初期的2000年增加了4.69%;工程实施之后的10年间,研究区水源涵养量呈增长趋势,土壤保持量亦呈增长趋势;就流域而言,黄河流域的生态系统服务的提升程度均更为明显。
[Abstract]:Natural forest resources protection project is an important ecological construction project widely carried out in China. On the basis of constructing the ecological multiple evaluation index system, this paper evaluates the ecological effect of the project implementation, which is of great scientific significance for its further decision-making and management. Through the fusion of multi-source data such as remote sensing and ecosystem quality, the present situation and temporal and spatial variation characteristics of ecosystem macro pattern, ecosystem quality, ecosystem service and other indicators are adopted. To evaluate the implementation effect of the first phase of natural forest protection project in Xiaolongshan area (2000-2010). The results showed that: (1) after the implementation of the project, the area of deciduous broad-leaf forest, deciduous broad-leaf shrubs, grassland and other ecosystem types in Xiaolongshan area increased greatly, and the macro situation of ecosystem improved. The improvement trend of ecosystem in the Yellow River Basin is obviously better than that in the Yangtze River Basin. (2) the multi-year slope of leaf area index (LAI) and maximum vegetation coverage (FC) in the study area from 2000 to 2010 are 0.022 and 0.510, respectively. The increasing trend of ecosystem quality is obvious. Among them, the improvement degree of the Yellow River Basin is higher than that of the Yangtze River Basin. (3) the carbon sequestration in the study area in 2010 is 700.20 t / hm ~ 2, which is 4.69% higher than that in the early 2000 years of the project. In the 10 years after the implementation of the project, the amount of water conservation and soil conservation in the study area also showed an increasing trend, and as far as the basin was concerned, the degree of improvement of ecosystem services in the Yellow River Basin was more obvious.
【作者单位】：华南农业大学公共管理学院;中国科学院地理科学与资源研究所;中国科学院大学资源与环境学院;荷兰瓦格宁根大学;
【基金】：国家十二五科技支撑计划项目(2013BAC03B04) 国家自然科学基金项目(41601575)~~
【分类号】：F326.2;S718.5

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