The dynamical evolution theory of the isolated oasis system

Li, Yaokun; Jiping, Chao

doi:10.1007/s11430-014-4941-1

Cited by 3 publications

(4 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Oasis science, an important subject branch of arid area science, has recently focused on the following major issues: changes to oases under land use changes such as irrigated agriculture, the appropriate use and management of water, oasis bearing capacity, soil and land use, and biology and climate in oasis-desert ecotones [Li and Chao, 2015]. Many such research topics should have been explored under the topic of "oasification.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, just as desertification research mainly focuses on the causes or driving forces in other areas, we also should pay attention to oasification when discussing desertification in arid areas because the oasification could be a contributing factor. At present, a considerable amount 15 of research has emphasized that desertification is the major obstacle to sustainable development of oases in Northwest China [Zhang et al, 2003a;Su et al, 2007;Nasierding and Zhang, 2009;Li et al, 2015], and seldom mentioned that oasification itself may represent an obstacle.…”

Section: Enriching Oasis Science and Enhancing Desertification Researmentioning

confidence: 99%

“…10 Historically, the change of oasis status was mainly influenced by climate. For instance, the oasis status in a warm period is entirely different from that in a cool period [Zhang et al, 2003a;Li and Chao, 2015]. However, the range of temperature fluctuation at a hundred-year scale is much smaller and is therefore unlikely to cause substantial variation of the water resources in oases.…”

Section: Important Topics In Oasification Researchmentioning

confidence: 99%

See 2 more Smart Citations

Should oasification be ignored when examining desertification in Northwest China?

GUI

Xue

Liu

et al. 2017

Preprint

View full text Add to dashboard Cite

Abstract. There has been substantial expansion of oases in the Northwest of China in recent decades; however, research has largely focused on desertification rather than oasification and its associated mechanisms. Based on the description of desertification in arid regions and other regions, and analysis of oasification in arid or hyper-arid areas, we firstly elucidate the theoretical relationship between oasification and desertification. We then examine the current 5 understanding in oasification research, and propose that this will enhance our understanding of desertification through the integration of studies of oasification. Finally, we suggest three potential topics for future oasification research. We also propose a simple conceptual model for the identification of an appropriate oasis size under different land uses, including the crucial assessment of associated uncertainties. Based on the analysis of oasification research from an 10 epistemological and methodological perspective, we suggest that oasification should have equal research status to desertification in arid regions.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Enriching Oasis Science and Enhancing Desertification Researmentioning

confidence: 99%

Section: Important Topics In Oasification Researchmentioning

confidence: 99%

See 1 more Smart Citation

Should oasification be ignored when examining desertification in Northwest China?

GUI

Xue

Liu

et al. 2017

Preprint

View full text Add to dashboard Cite

show abstract

“…The history of cultivated oasis development is a process in which humans have placed stress on these natural systems. However, oases are fragile ecosystems and susceptible to external disturbances resulting from changing natural and human stresses (Bravard, Mostafa, Garcier, Tallet, & Ballet, ; Dong, Yang, & Zhang, ; Lambin & Geist, ; Li & Chao, ). Human wellbeing in these areas might be seriously compromised if the oasis ecosystem is irreversibly damaged beyond a particular threshold.…”

Section: Introductionmentioning

confidence: 99%

Cultivated oasis evolution in the Heihe River Basin over the past 2,000 years

et al. 2018

View full text Add to dashboard Cite

Cultivated oases play an important role in supporting human civilization in arid regions. Few quantitative analyses have been conducted on the influence of natural disturbances and human interventions on this fragile system over a long timescale. This paper presents an empirical study to investigate the quantitative relationship between cultivated oasis evolution and a set of natural and human factors in Heihe River Basin (HRB) over a timeframe of approximately 2,000 years (206 BC–1949 AD). Multiple data sources, including documentary records, historical atlas reconstruction data, and published papers, were used. Stepwise multiple linear regression analysis was adopted to quantify any significant contributions of the selected variables. The results showed that cultivated oasis in the HRB had experienced substantial fluctuations. Population size, agricultural policies, military clashes, and grain yield per unit area were 4 major human related factors determining historical cultivated oasis development, while flood was the only significant natural factor. In combination of similar studies in recent decades, this study shows that the dynamics of oasis development and its transition is important for determination of the sustainable size of a cultivated oasis in the HRB.

show abstract

Spatiotemporal Dynamics of Vegetation Index in an Oasis-Desert Transition Zone and Relationship with Environmental Factors

Zhang

Liang

et al. 2023

Sustainability

View full text Add to dashboard Cite

The oasis-desert transition zone (TZ) is an ecological buffer zone between a mobile desert and an oasis, which are important in reducing the forward mobility of sand dunes and wind and sand hazards in an oasis. In this study, the Dunhuang Oasis and its TZ in the Hexi Corridor (China) were examined. Based on the annual normalized vegetation index (NDVI) at each buffer distance of the TZ from 1987 to 2015, combing the watershed hydrology, oasis crop cultivation structure and industrial economic status, partial least squares regression models and a correlation analysis were used to examine the spatial and temporal changes in the vegetation gradient of the oasis TZ and the factors influencing those changes. (1) Spatially, the NDVI values in the TZ generally decreased gradually before stabilizing with a buffer distance (average decrease of 0.01–0.03 per 300 m). (2) Temporally, the mean values of the NDVI in the TZ show an overall wavelike variation across years. The annual average maximum NDVI value was 0.11 in 1987, whereas the annual average minimum value was 0.07 in 2014. (3) During the 1987–2015, runoff, tourist populations and water consumption for orchards were significantly and positively correlated with the NDVI; the year-end arable land area and the total industrial output value were significantly and negatively correlated with the NDVI; the rural per capita net income and water consumption for grain planting were not significantly and positively correlated with the NDVI; water consumption for the sum of vegetable and melon planting, water consumption for cotton planting, urbanization and rural populations were not significantly and negatively correlated with the NDVI. (4) The farm TZ NDVI is more strongly influenced by human activities than the undisturbed natural TZ.

show abstract

The dynamical evolution theory of the isolated oasis system

Cited by 3 publications

References 9 publications

Should oasification be ignored when examining desertification in Northwest China?

Should oasification be ignored when examining desertification in Northwest China?

Cultivated oasis evolution in the Heihe River Basin over the past 2,000 years

Spatiotemporal Dynamics of Vegetation Index in an Oasis-Desert Transition Zone and Relationship with Environmental Factors

Contact Info

Product

Resources

About