20
Tecnología y Ciencias del Agua
, vol. VIII, núm. 2, marzo-abril de 2017, pp. 19-30
Fan
et al
.
, Effect of drip irrigation with saline water on the shelterbelts to soil and groundwater environment in the hinterland of Taklimakan Desert, China
•
ISSN 2007-2422
Introduction
In the arid and semi-arid regions of China,
many hydrological changes have occurred due
to the impact of climate change and human
activities (Zhao & Cheng, 2002; Huang & Pang,
2010), particularly the irrigation projects with
use of groundwater. Groundwater in the arid
areas plays an important role in ensuring the
stability of the desert and oasis ecosystem (Na-
umburg, Mata-Gonzalez, Hunter, Mclendon, &
Martin, 2005; Mu Oz-Reinoso, 2001; Gullison &
Bourque, 2001). Tarim Desert Highway shelter-
belt ecological engineering project is the longest
artificial shelterbelt system crossing drifting
desert. It has been completed 436 km protec-
tion forest in the Taklimakan desert, sometimes
known as “the green corridor”. Groundwater
resources in the desert region are very precious,
and various environmental problems could arise
without optimal use and effective conservation
(Zhang, 2004). One of the most pertinent issues
in achieving water saving irrigation is to study
the formation and movement pattern of water in
the vadose zone. The thickness of vadose zone
along desert highway is different, and the irriga-
tion system for shelterbelts is the same, which
is conducive to the convenient management of
water resources, but is also an indirect waste of
groundwater resources (Han, Cao, Yimit, Xu, &
Zhang, 2012). Currently, there have been few
reports on the effect of irrigation with saline
water on the growth of artificial forest and
groundwater environment (Li, Lei, Zhao, Xu,
& Li, 2015; Zhang, 2016). These studies not only
help deepen the scientific insight into the SPAC
(soil-plant-atmosphere continuum) (Shaozhong,
1994), but also have important guiding signifi-
cance for groundwater pollution control as well
as ecological and environmental engineering
projects (Guswa, Celia, & Rodriguez-Iturbe,
2002; Scott, 2001).
The volume of irrigation water and the salt
distribution in soil profile can affect the salt
leaching process (Swarajyalakshmi, Gurumur-
thy, & Subbaiah, 2003), so the soil salt dynamics
has been extensively explored (Xu, Li, & Wang,
2006; Zhou, Xu, Lei, & Li, 2006; Miyamoto,
Chacon, Hossain, & Martinez, 2005; Mousavi,
Soltani-Gerdefaramarzi, & Mostafazadeh-Fard,
2010). However, most of the laboratory studies
were focused on the effect of water and soil
properties on the response to irrigation, while
there is scarce information on the impact of drip
irrigation with saline water on the growth, soil,
and groundwater of
Tamarixramosissima
and
Haloxylonammodendron
forests under desert
environment. Therefore, the purpose of this
study is to evaluate the impact of drip irrigation
with saline water on plant growth in shelterbelts
and underground environment in the study area
under natural conditions. In this study, four
Received: 14/01/2016
Approved: 26/10/2016
the soil body into the groundwater. The groundwater level
in the shelterbelt area, total dissolved solids (TDS), and
total hardness exhibited an upward trend. Six days after
irrigation, the high salt concentration region was found at
a depth of 0–30 cm.
Keywords
: Drip irrigation with saline water, shelterbelts,
vadose zone, groundwater, Taklamakan Desert.
el nivel de agua subterránea en el área de la cortina rompevientos,
los sólidos disueltos totales (SDT) y la dureza total mostraron una
tendencia ascendente. Seis días después del riego, la región de alta
concentración de sales se encontró a una profundidad de 0 a 30
centímetros.
Palabras clave
: riego por goteo con agua salina, cortina
rompevientos, zona no saturada, aguas subterráneas, desierto de
Taklamakan.
