SGER: Experimental Flooding at Bosque del Apache National Wildlife Refuge, Rio Grande, New Mexico

小行星9414767 为发电、娱乐和航行而进行的流量调节导致河流、洪泛区和相关冲积含水层的工程分隔。 其结果是当地河岸植被显著减少，森林地面上有机物质的积累增加。 有相当多的证据表明，陆上洪水和相关的冲刷河漫滩沉积物是必要的组成部分，成功地补充本地河岸植被，但很少有人知道洪水对河岸带地下水的影响和类型的相互作用和过程中发生的间隙环境在洪水。 该提案将评估使用“操纵性洪水”作为恢复工具，旨在重建新墨西哥州博斯克德尔阿帕奇国家野生动物保护区沿着格兰德河的河岸森林或博斯克的历史条件和过程。 控制洪水的20有地块的博斯克将提供机会，调查地下水的响应和呼吸和氮转化率在暂时饱和的生根区和森林地面。 此外，我们将调查洪水的河岸植被的碳和氮含量的影响。 本提案中要求的资金将用于支持对经过30年流量调节后河岸带最初洪水的代谢和生物地球化学研究。

9414767 Valett Flow regulation for the purposes of power generation, recreation and navigation has resulted in the engineered separation of rivers, floodplains and associated alluvial aquifers. the result has been a marked decrease in native riparian vegetation and increased accumulations of organic material on the forest floor. there is considerable evidence that overland flooding and associated scouring of floodplain sediments are necessary components for the successful recruitment of native riparian vegetation, but less is known about the effects of floods on the ground water of riparian zones and the types of interactions and processes that occur in the interstitial environment during floods. This proposal will assess the use of "manipulative flooding" as a restoration tool aimed at reestablishing historical conditions and processes in the riparian forest, or bosque, along the Rio Grande at the Bosque del Apache National Wildlife refuge, New Mexico. %%% Controlled flooding of 20 has plots of the bosque will provide opportunities to investigate groundwater responses and the rates of respiration and nitrogen transformation in the temporarily saturated rooting zone and on the forest floor. Additionally, we will investigate the effects of flooding of the carbon and nitrogen content of riparian vegetation. Funds requested in this proposal will support metabolic and biogeochemical studies of the initial flooding of the riparian zone following 30 years of flow regulation.