scholarly journals Spatial Layout of Cotton Seed Production Based on Hierarchical Classification: A Case Study in Xinjiang, China

Agriculture ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 759
Author(s):  
Yingnan Niu ◽  
Gaodi Xie ◽  
Yu Xiao ◽  
Keyu Qin ◽  
Jingya Liu ◽  
...  
Keyword(s):  
Seed Production ◽  
Tarim Basin ◽  
Cotton Seed ◽  
Hierarchical Classification ◽  
Spatial Layout ◽  
Production Risk ◽  
Cotton Species ◽  
Market Factors ◽  
Northern Tarim Basin ◽  
Suitable Area

Cotton seed production is the main form of agriculture in Xinjiang, China. Unreasonable distribution of cotton seed production results in a waste of water, land, and human resources. In this study, we established a hierarchical classification integrating method; investigated the spatial suitability of climate, land and water resources, and infrastructure; examined the production risk and planting history; and integrated spatial suitability and production risk and history to produce the spatial layout of seed production for early-maturing cotton (EMC), early–medium-maturing cotton (EMMC), and long staple cotton (LSC) in Xinjiang. The results indicated that the appropriate areas for EMC, EMMC, and LSC seed production are 6.4 × 105, 5.5 × 105, and 3.6 × 105 ha, respectively. By combining the suitable areas of seed production for the three cotton species, we concluded that the superior and most suitable area for producing cotton seed of EMC, EMMC, or LSC is located in the western Tarim Basin. The sub-suitable area for cotton seed production of EMC, EMMC, or LSC is mostly distributed in the western and northern Tarim Basin. This research provides a good solution to the selection of cotton seed production base; however, adoption will depend on the actual preference and market factors.

Determination of oil charge timing in the Ordovician carbonate reservoir of the Tahe Oilfield, Tarim Basin, NW China

2021 ◽  
Author(s):  
Jiaxu Chen ◽  
Xiaowen Guo
Keyword(s):  
Tarim Basin ◽  
Sedimentary Basins ◽  
Carbonate Reservoir ◽  
Rock Interaction ◽  
Tahe Oilfield ◽  
Petroleum Systems ◽  
Calcite Veins ◽  
Homogenization Temperatures ◽  
Two Phases ◽  
Northern Tarim Basin

<p>Determining the timings of oil charge in sedimentary basins are essential to understand the evolutionary histories of petroleum systems, especially in sedimentary basins with complicated tectonic evolution and thermal histories. The Ordovician carbonate reservoir in the Tahe Oilfield, which is located in the northern Tarim Basin, comprises the largest marine reservoirs in China with reserves up to 3.2×10<sup>8</sup> t. This study aims to determine the timings of oil charge in the Ordovician carbonate reservoir in the Tahe Oilfield, Tarim Basin, which basin is subjected to multiple phases of tectonic deformations and oil charge. The phases of calcite veins that contain oil inclusions were systematically investigated by cathodoluminescence observation, in situ rare earth element, C, O, and Sr isotope analyses. The homogenization temperatures of aqueous inclusions that are coeval with oil inclusions were measured to determine the timings of oil charge by combining the burial and geothermal histories. Two phases of calcite veins were judged by the differences in cathodoluminescence color, Ce anomaly, δ<sup>18</sup>O, and <sup>87</sup>Sr/<sup>86</sup>Sr values, which might be caused by variations in the water-rock interaction processes during different calcite phases. Primary oil inclusions with yellow fluorescence were observed in the two phases of calcite veins, suggesting two phases of oil charge. By combining the homogenization temperatures of aqueous inclusions with the burial and geothermal histories, the timing of phase I oil charge was inferred to be 336–312 Ma, and the timing of phase II oil charge was inferred to be 237–217 Ma.</p>

Abundant microspherules from the Upper Ordovician of northern Tarim Basin, Northwest China: Origin and palaeoenvironmental implications

2018 ◽  
Vol 53 (6) ◽  
pp. 2896-2907 ◽  
Author(s):  
Xiao-Lin Chang ◽  
Ming-Cai Hou ◽  
Xin-Chun Liu ◽  
Elizabeth Orr ◽  
Min Deng ◽  
...  
Keyword(s):  
Tarim Basin ◽  
Northwest China ◽  
Upper Ordovician ◽  
Northern Tarim Basin

The Uyghur Empire (744–840)

2017 ◽  
Author(s):  
Michael R. Drompp
Keyword(s):  
Tarim Basin ◽  
Tang Dynasty ◽  
Trade Routes ◽  
The North ◽  
The Tang Dynasty ◽  
Nomadic People ◽  
Eastern Inner Mongolia ◽  
Northern Tarim Basin ◽  
Economic Ties ◽  
River Valleys

The Uyghurs (Chinese Huihe迴 紇, Huihu回鶻) were a pastoral nomadic people living in the region of the Selenga and Orkhon river valleys in modern Mongolia; they spoke a Turkic language. The empire that they created on the steppe lasted for nearly a century (744–840) and played an important role, both politically and culturally, in East Asia. Centered on the Mongolian Plateau, the Uyghur Empire at its height controlled numerous other peoples within a territory that included lands to the north in the modern regions of Tuva and Buryatia, as well as some parts of the northern Tarim Basin and eastern Inner Mongolia.1 During its eventful history, the Uyghur Empire sent cavalry to help the Tang Dynasty put down the An Lushan rebellion, maintained strong political and economic ties with China, fought with the Tibetan Empire for control of important international trade routes, built cities on the steppe, celebrated its rulers’ achievements in stone stelae, and—uniquely in the world—adopted Manichaeism as its state religion. After their empire collapsed, the Uyghurs developed new polities in Gansu and the Tarim Basin that continued to exercise influence in Inner Asia.

POTENTIAL STRUCTURAL TRAPS ASSOCIATED WITH LOWER CARBONIFEROUS SALT IN THE NORTHERN TARIM BASIN, NW CHINA

2004 ◽  
Vol 27 (1) ◽  
pp. 67-84
Author(s):  
Jiangyu Zhou ◽  
Zhongmin Lin ◽  
Chuangrong Luo ◽  
Xiepei Wang
Keyword(s):  
Tarim Basin ◽  
Lower Carboniferous ◽  
Nw China ◽  
Northern Tarim Basin

scholarly journals Hydrothermal Dissolution of Deeply Buried Cambrian Dolomite Rocks and Porosity Generation: Integrated with Geological Studies and Reactive Transport Modeling in the Tarim Basin, China

Geofluids ◽  
2017 ◽  
Vol 2017 ◽  
pp. 1-19 ◽  
Author(s):  
Wenwen Wei ◽  
Daizhao Chen ◽  
Hairuo Qing ◽  
Yixiong Qian
Keyword(s):  
Tarim Basin ◽  
Carbonate Rocks ◽  
Reactive Transport ◽  
Wall Rock ◽  
Transport Modeling ◽  
Reactive Transport Modeling ◽  
Fluid Temperature ◽  
Upward Migration ◽  
Vertical Permeability ◽  
Northern Tarim Basin

The burial dissolution of carbonate rocks has long been an interesting topic of reservoir geologists. Integrated with geological studies and reactive transport modeling, this study investigated the Cambrian dolomites that were buried at depths up to 8408 m and still preserved a large amount of unfilled dissolution vugs from the borehole TS1 in the northern Tarim Basin. Studies indicate that these vugs were formed in association with fault-channeled hydrothermal fluids from greater depth through “retrograde dissolution” as the fluid temperature dropped during upward migration. The reactive transport modeling results suggest an important control of the vertical permeability of wall-rock on fluid and temperature patterns which, in turn, would control the spatial distribution of dissolving-originated porosity. The hydrothermal dissolution mainly occurred in dolomite wall-rocks with higher vertical permeability (extensive development of tensional fractures and connected pore spaces), producing additional dissolved porosity there during deep burial. This study implicates the importance of multidisciplinary approaches for understanding the burial/hydrothermal dissolution of dolomite rocks and predicting favourable deep/ultradeep carbonate reservoirs.

The Early Hercynian paleo-karstification in the Block 12 of Tahe oilfield, northern Tarim Basin, China

2013 ◽  
Vol 29 (3) ◽  
pp. 251-261 ◽  
Author(s):  
Xuefei Yang ◽  
Xingzhi Wang ◽  
Hao Tang ◽  
Yong Ding ◽  
Haitao Lv ◽  
...  
Keyword(s):  
Tarim Basin ◽  
Tahe Oilfield ◽  
Northern Tarim Basin
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