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首页> 外文会议>Revisiting experimental catchment studies in forest hydrology. >Comparison between a statistical approach and paired catchment study in estimating water yield response to afforestation
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Comparison between a statistical approach and paired catchment study in estimating water yield response to afforestation

机译：统计方法与成对流域研究在估算造林用水量响应中的比较

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摘要

Afforestation has been encouraged worldwide for diverse benefits. However, the escalating debate about the water yield reduction after afforestation continues to influence forestry policy. The water yield impacts have traditionally been evaluated using paired catchment studies (PCS), but these are mainly designed for de/re-forestation impacts. Thus they do not necessarily guide forest-water policy for afforestation since they have different baseline hydrology. Furthermore, the few long-term afforestation PCS are limited to only selected countries. Thus, a simple method using the abundant data of non-PCS is needed, especially for regions without PCS. A statistical approach was developed and tested by fitting it with data from 44 catchments with forest and grassland cover cited from literature. It showed that the average reduction in annual runoff, estimated through the statistical approach, agrees well with the PCS approach. This indicates that if the data are sufficient, the statistical approach provides an alternative to PCS to predict afforestation impacts.
机译：全世界都鼓励植树造林，以带来各种好处。然而，关于造林后减少水产量的争论不断，继续影响着林业政策。传统上已经使用成对流域研究（PCS）评估了对水的影响，但是这些主要是针对毁林/重新造林的影响而设计的。因此，由于它们的基线水文状况不同，因此不一定指导造林的森林水政策。此外，少数长期造林PCS仅限于选定的国家。因此，需要一种简单的方法来使用非PCS的大量数据，尤其是对于没有PCS的区域。开发了一种统计方法，并将其与来自文献中引用的来自森林和草地覆盖的44个流域的数据进行拟合，以对其进行检验。结果表明，通过统计方法估算的年径流量平均减少量与PCS方法非常吻合。这表明，如果数据足够，则统计方法可替代PCS来预测造林影响。

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  • 来源
  • 会议地点 Melbourne(AU);Melbourne(AU);Melbourne(AU)
  • 作者

    YANHUI WANG; MICHAEL BREDEMEIER; MIKE BONELL; PENGTAO YU; KARL-HEINZ FEGER; WEI XIONG; LIHONG XU;

  • 作者单位

    The Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Wan-Shou-Shan, 100091 Beijing, China;

    Forest Ecosystems Research Center, Faculty of Forest Sciences and Forest Ecology, Goettingen University, Buesgenweg 2, 37077 Goettingen, Germany;

    The UNESCO Centre, University of Dundee, DD1 4HN Scotland, UK, and Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK;

    The Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Wan-Shou-Shan, 100091 Beijing, China;

    Faculty of Forestry, Geo- and Hydrosciences, Dresden Water Center, Dresden University of Technology, 01735 Tharandt, Germany;

    The Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Wan-Shou-Shan, 100091 Beijing, China;

    The Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Wan-Shou-Shan, 100091 Beijing, China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 林业;林业;
  • 关键词

    afforestation; water yield impacts; paired catchment studies; statistical approach;

    机译：造林;产量影响；配对流域研究；统计方法;

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