Valley Settlement Characteristics Analysis in Northwest of China - Exampled by Qingcheng Town

2011 ◽  
Vol 261-263 ◽  
pp. 1172-1177
Author(s):  
Xiang Wu Meng ◽  
Ming Hui Ye ◽  
Han Zhang

Known as “the Millennium Town beside the Yellow River” Qingcheng Town in Yuzhong County has many rich cultural heritages and profound cultural foundation. Its terrain belongs to the typical Yellow River Valley. It was an important traffic wharf of the ancient Silk Road, and a terminal frontier military center from Tang Dynasty to Ming Dynasty. By researching and analyzing the Qingcheng town, the thesis summarizes its characteristics of the spatial layout and ecological culture.

2020 ◽  
Vol 56 (3) ◽  
pp. 422-439
Author(s):  
Guoping Wang ◽  
Yabing Li ◽  
Yingchun Han ◽  
Zhanbiao Wang ◽  
Beifang Yang ◽  
...  

AbstractThe cotton-wheat double-cropping system is widely used in the Yellow River Valley of China, but whether and how different planting patterns within cotton-wheat double-cropping systems impact heat and light use efficiency have not been well documented. A field experiment investigated the effects of the cropping system on crop productivity and the capture and use efficiency of heat and light in two fields differing in soil fertility. Three planting patterns, namely cotton intercropped with wheat (CIW), cotton directly seeded after wheat (CDW), and cotton transplanted after wheat (CTW), as well as one cotton monoculture (CM) system were used. Cotton-wheat double cropping significantly increased crop productivity and land equivalent ratios relative to the CM system in both fields. As a result of increased growing degree days (GDD), intercepted photosynthetically active radiation (IPAR), and photothermal product (PTP), the capture of light and heat in the double-cropping systems was compared with that in the CM system in both fields. With improved resource capture, the double-cropping systems exhibited a higher light and heat use efficiency according to thermal product efficiency, solar energy use efficiency (Eu), radiation use efficiency (RUE), and PTP use efficiency (PTPU). The cotton lint yield and biomass were not significantly correlated with RUE across cropping patterns, indicating that RUE does not limit cotton production. Among the double-cropping treatments, CDW had the lowest GDD, IPAR, and PTP values but the highest heat and light resource use efficiency and highest overall resource use efficiency. This good performance was even more obvious in the high-fertility field. Therefore, we encourage the expanded use of CDW in the Yellow River Valley, especially in fields with high fertility, given the high productivity and resource use efficiency of this system. Moreover, the use of agronomic practices involving a reasonably close planting density, optimized irrigation and nutrient supply, and the application of new short-season varieties of cotton or wheat can potentially enhance CDW crop yields and productivity.


2022 ◽  
Vol 21 (1) ◽  
pp. 78-90
Author(s):  
Ling-xiao ZHU ◽  
Lian-tao LIU ◽  
Hong-chun SUN ◽  
Yong-jiang ZHANG ◽  
Ke ZHANG ◽  
...  

2016 ◽  
Vol 198 ◽  
pp. 112-121 ◽  
Author(s):  
Xiangru Wang ◽  
Yuru Hou ◽  
Mingwei Du ◽  
Dongyong Xu ◽  
Huaiyu Lu ◽  
...  

2007 ◽  
Vol 2 (4) ◽  
pp. 287-295 ◽  
Author(s):  
Katsutada ONITSUKA ◽  
Peihang CHEN ◽  
Peihua TONG ◽  
Takehito NEGAMI ◽  
Kei HAYAKAWA

2012 ◽  
Vol 174-177 ◽  
pp. 3589-3592
Author(s):  
Xian E Li ◽  
Yu Ting Zhao

Shanxi ancient villages and towns have a prominent representative in the historical and cultural dwellings in the Yellow River Valley. Based on the field research, this paper summarizes the experience in the protection and exploitation of Shanxi’s ancient villages into four modes, which mainly include the Jingsheng Mode, based on the county level’s fiscal revenue, the ancient Zhangbi Model driven by the county’s economy, the Huangcheng village Model developed by its rural economy, and the Shangzhuang Village’s Protective model based mainly on investment from individuals. These protection and development modes have achieved some initial results. In contrast with these, some historical towns represented by Ancient Town of Qikou are facing adverse conditions for emphasizing the protection too much to expand themselves. This paper will come up with a brief way for development.


2008 ◽  
Vol 22 (10) ◽  
pp. 1499-1519 ◽  
Author(s):  
H. R. Wang ◽  
Y. Y. Dong ◽  
Y. Wang ◽  
Q. Liu

2014 ◽  
Vol 164 ◽  
pp. 22-29 ◽  
Author(s):  
Jianlong Dai ◽  
Zhen Luo ◽  
Weijiang Li ◽  
Wei Tang ◽  
Dongmei Zhang ◽  
...  

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