NDLI: Determining the impacts of experimental forest plantation on groundwater recharge in the Nebraska Sand Hills (USA) using chloride and sulfate

Content Provider	Springer Nature Link
Author	Adane, Z. A. Gates, J. B.
Copyright Year	2014
Abstract	Although impacts of land-use changes on groundwater recharge have been widely demonstrated across diverse environmental settings, most previous research has focused on the role of agriculture. This study investigates recharge impacts of tree plantations in a century-old experimental forest surrounded by mixed-grass prairie in the Northern High Plains (Nebraska National Forest), USA. Recharge was estimated using solute mass balance methods from unsaturated zone cores beneath 10 experimental plots with different vegetation and planting densities. Pine and cedar plantation plots had uniformly lower moisture contents and higher solute concentrations than grasslands. Cumulative solute concentrations were greatest beneath the plots with the highest planting densities (chloride concentrations 225–240 % and sulfate concentrations 175–230 % of the grassland plot). Estimated recharge rates beneath the dense plantations (4–10 mm yr$^{−1}$) represent reductions of 86–94 % relative to the surrounding native grassland. Relationships between sulfate, chloride, and moisture content in the area’s relatively homogenous sandy soils confirm that the unsaturated zone solute signals reflect partitioning between drainage and evapotranspiration in this setting. This study is among the first to explore afforestation impacts on recharge beneath sandy soils and sulfate as a tracer of deep drainage.Bien que les impacts des changements d’utilisation des sols sur la recharge des aquifères ont été largement démontrés dans divers contextes environnementaux, la plupart des recherches antérieures ont porté sur le rôle de l’agriculture. Cette étude examine les impacts de la recharge de trois plantations d’arbres dans une forêt expérimentale centenaire entourée de prairies mixtes dans les hautes plaines du Nord (Forêt nationale du Nebraska), Etats Unis d’Amérique. La recharge a été estimée en utilisant des méthodes de bilan massique des solutés au sein de la zone non saturée sous 10 parcelles expérimentales composées de différentes espèces et de densités de plantation. Les parcelles de pins et de cèdres avaient de manière uniforme de plus faibles teneurs en humidité et de plus forte concentrations en solutés que pour les parcelles de prairie. Les concentrations cumulées en solutés atteignaient un maximum sous les parcelles avec les plus fortes densités de plantation (concentrations de chlorure de 225–240 % et concentrations de sulfate de 175–230 % par rapport à la parcelle de prairie). Les taux de recharge estimés sous les parcelles de plantation dense (4–10 mm/an) représentent des réductions de 86–94 % par rapport au taux de recharge sur les prairies naturelles environnantes. Les relations entre les concentrations en sulfate, chlorure et teneur en eau dans des sols sablonneux relativement homogènes de la région confirment que les signaux de solutés de la zone non saturée reflètent la répartition entre le drainage et l’évapotranspiration pour ce contexte. Cette étude est parmi les premières à explorer les impacts du déboisement sur la recharge au sein de sols sableux et à utiliser les sulfates comme traceur du drainage profond.Aunque los impactos de los cambios del uso de la tierra sobre la recarga de agua subterránea han sido ampliamente demostrados a través de diversas configuraciones ambientales, la mayoría de las investigaciones más recientes se han focalizado en el rol de la agricultura. Este estudio investiga los impactos en la recarga de plantaciones de árboles en una forestación experimental centenaria rodeada por una llanura de pastura mezclada en la Northern High Plains (Nebraska National Forest), EEUU. La recarga fue estimada usando métodos de balance de masa de solutos a partir de testigos de la zona no saturada por debajo de 10 parcelas experimentales con diferente vegetación y densidad de la plantación. Las parcelas de plantaciones de pinos y cedros tuvieron uniformemente menor contenido de humedad y mayores concentraciones de soluto que las pasturas. Las concentraciones acumulativa de solutos fueron mayores por debajo de las parcelas con mayores densidades de plantaciones (concentraciones de cloruro de 225–240 % y concentraciones de sulfato de 175–230 % en las parcelas en pasturas). Las tasas de recarga estimadas por debajo de la plantaciones densas (4–10 mm a$^{−1}$) representan reducciones de 86–94 % relativas a la pastura nativa circundantes. Las relaciones entre sulfato, cloruro, y contenido de humedad en las áreas de suelos arenosos relativamente homogéneos confirman que señales del soluto en la zona no saturada reflejan la partición entre drenaje y evapotranspiración en esta configuración. Este estudio está entre los primeros para explorar los impactos de la reforestación sobre la recarga de suelos arenosos y del sulfato como un trazador de drenaje profundo.尽管对各种环境背景下土地变化对地下水补给的影响进行过广泛的研究,但大部分研究集中在农业的作用上。本项研究调查了一个具有百年历史的实验林内植树对地下水补给的影响,这个试验林被美国北方高平原(内布拉斯加州国家森林)生长着混合草的牧场所环绕。根据10个不同植被和种植密度的试验田之下的非饱和带岩心资料,利用溶质质量平衡方法估算了补给量。松树和雪松种植地块的含水量比草原的含水量都低,而溶质含量都比草原的溶质含量都高。种植密度最大的地块累积溶质含量最高(草原地块的氯化物含量225–240 %,硫酸盐含量175–230)。致密种植林之下估算的补给量(4–10 mm yr$^{–1}$)相对于周围天然的草原减少86–94 %。硫酸盐、氯化物和本区相对同质的砂质土壤之间的关系证实,非饱和带溶质的标志反映了在这种背景下排水和蒸发蒸腾之间的分区。这项研究是第一批探索植树造林对砂质土壤下补给的影响及硫酸盐作为深部排水示踪剂的研究。Apesar dos impactes das modificações do uso da terra na recarga de água subterrânea terem sido amplamente demonstrados em diversas configurações ambientais, a maioria das pesquisas anteriores concentrou-se sobre o papel da agricultura. Este estudo investiga os impactes na recarga provocados pela plantação de árvores numa floresta experimental centenária, rodeada por pradaria com pastagens, no norte das High Plains (Floresta Nacional do Nebrasca), EUA. A recarga foi estimada utilizando métodos de balanço de massa de soluto a partir de zonas não saturadas, sob 10 parcelas experimentais com diferentes tipos de vegetação e de densidade de plantio. As parcelas de plantação de pinheiro e cedro apresentaram teores de humidade uniformemente baixos e concentração de solutos mais elevada do que as pastagens. As concentrações de solutos acumulados foram maiores nas parcelas com as maiores densidades de plantio (concentração de cloreto de 225–240 % e concentração de sulfato de 175–230 % da parcela de pastagens). As taxas de recarga estimadas sob as plantações densas (4–10 mm ano$^{−1}$) representam reduções de 86–94 % em relação às pastagens nativas circundantes. As relações entre sulfato, cloreto e teor de humidade, nos solos arenosos relativamente homogéneos da área, confirmam que os sinais dos solutos na zona não saturada refletem a partição entre drenagem e evapotranspiração neste contexto. Este estudo é dos primeiros a explorar os impactes da florestação na recarga sob solos arenosos e a usar o sulfato como um traçador para a drenagem profunda.
Starting Page	81
Ending Page	94
Page Count	14
File Format	PDF
ISSN	14312174
Journal	Hydrogeology Journal
Volume Number	23
Issue Number	1
e-ISSN	14350157
Language	Portuguese
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-08-30
Publisher Institution	International Association of Hydrogeologists
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Groundwater recharge Unsaturated zone Environmental tracers USA Grassland plantations Hydrogeology Hydrology/Water Resources Geology Waste Water Technology Water Pollution Control Water Management Aquatic Pollution
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences Water Science and Technology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Estimating groundwater recharge beneath irrigated farmland using environmental tracers fluoride, chloride and sulfate

Mapping mean annual groundwater recharge in the Nebraska Sand Hills, USA

Review: Environmental tracers in arid-zone hydrology

Evaluating the Impacts of Grassland Conversions to Experimental Forest on Groundwater Recharge in the Nebraska Sand Hills

The effects of a dry sand layer on groundwater recharge in extremely arid areas: field study in the western Hexi Corridor of northwestern China

Impacts of soil conservation on groundwater recharge in the semi-arid Loess Plateau, China

Sources of high-chloride water and managed aquifer recharge in an alluvial aquifer in California, USA

Limited denitrification in glacial deposit aquifers having thick unsaturated zones (Long Island, USA)

Identifying groundwater recharge connections in the Moscow (USA) sub-basin using isotopic tracers and a soil moisture routing model

Determining the impacts of experimental forest plantation on groundwater recharge in the Nebraska Sand Hills (USA) using chloride and sulfate

Similar Documents

Estimating groundwater recharge beneath irrigated farmland using environmental tracers fluoride, chloride and sulfate

Mapping mean annual groundwater recharge in the Nebraska Sand Hills, USA

Review: Environmental tracers in arid-zone hydrology

Evaluating the Impacts of Grassland Conversions to Experimental Forest on Groundwater Recharge in the Nebraska Sand Hills

The effects of a dry sand layer on groundwater recharge in extremely arid areas: field study in the western Hexi Corridor of northwestern China

Impacts of soil conservation on groundwater recharge in the semi-arid Loess Plateau, China

Sources of high-chloride water and managed aquifer recharge in an alluvial aquifer in California, USA

Limited denitrification in glacial deposit aquifers having thick unsaturated zones (Long Island, USA)

Identifying groundwater recharge connections in the Moscow (USA) sub-basin using isotopic tracers and a soil moisture routing model

Determining the impacts of experimental forest plantation on groundwater recharge in the Nebraska Sand Hills (USA) using chloride and sulfate