The effects of topography and forest management on water storage in catchments in south‐central Chile
The effects of topography and forest management on water storage in catchments in south‐central Chile
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DOI：
10.1002/hyp.13261
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发表时间：
2018-09
影响因子：
3.2
通讯作者：
G. Barrientos;A. Iroumé
中科院分区：
文献类型：
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作者：
G. Barrientos;A. Iroumé
我们的工作分析了智利中南部15个森林水源集水区储存水量的年内变化，旨在了解森林管理，水文和气候如何影响集水区储存的动态组成部分。因此，我们解决以下问题：（a）如何每年的水存储不同的集水区位于不同的水文气候条件和可变的森林管理？(b)自然（即，水文制度和地文设置）和人为因素解释的变化，在水储存？结果表明，在每个水文年的开始，在直接响应降雨量的增加，年集水存储增加。这些集水区的最大蓄水量为666至1，272毫米。有松树或桉树的集水区。覆盖的集水区比混合森林覆盖的集水区储存的水少。森林覆盖（生物量，种植密度，种植和年龄的百分比）在所有集水区的动态存储的主要控制。这些结果表明，森林管理可能会改变集水区的蓄水量。
Our work analyses the intra‐annual variability of the volume of water stored in 15 forested headwater catchments from south‐central Chile, aiming at understanding how forest management, hydrology, and climate influence the dynamic components of catchment storage. Thus, we address the following questions: (a) How does the annual water storage vary in catchments located in diverse hydroclimatic conditions and subject to variable forest management? (b) Which natural (i.e., hydrologic regime and physiographic setting) and anthropogenic factors explain the variance in water storage? Results show that the annual catchment storage increases at the beginning of each hydrological year in direct response to increases in rainfall. The maximum water storage ranges from 666 to 1,272 mm in these catchments. The catchments with Pinus or Eucalyptus spp. cover store less water than the catchments with mixed forest species cover. Forest cover (biomass volume, plantation density, and percentage of plantation and age) has the primary control on dynamic storage in all catchments. These results indicate that forest management may alter the catchment water storage.