The Qinghai Nanshan fault is a larger fault in the Northeastern Xizang Plateau.In previous studies,its movement characteristics are mainly investigated with geological and seismic observations,and the tectonic transfo...The Qinghai Nanshan fault is a larger fault in the Northeastern Xizang Plateau.In previous studies,its movement characteristics are mainly investigated with geological and seismic observations,and the tectonic transformation role of the fault on its east is not yet clear.This study uses data fusion to obtain denser GPS observations near the Qinghai Nanshan fault.Based on tectonic characteristics,we establish a block model to investigate the fault slip rate,locking degree,and slip deficit.The results show that the Qinghai Nanshan fault slip rate is characterized by sinistral and convergent movement.Both the sinistral and convergent rates display a decreasing trend from west to east.The locking degree and slip deficit are higher in the western segment(with an average of about 0.74 and 1.1 mm/a)and lower in the eastern segment.Then,we construct a strain rate field using GPS observations to analyze the regional strain characteristics.The results indicate that along the fault,the western segment shows a larger shear strain rate and negative dilation rate.Regional earthquake records show that the frequency of earthquakes is lower near the fault.The joint results suggest that the western segment may have a higher earthquake risk.In addition,the insignificant fault slip rate in the eastern segment may indicate that it does not participate in the tectonic transformation among the Riyueshan,Lajishan,and West Qinling faults.展开更多
Nanshan, an unique natural meadow, has cool climate. In Nanshan, annu- al average temperature was 11.2 ℃; average temperature in the hottest month July was 18.4 ℃, and extremely maximum temperature was 26.8 0℃; ave...Nanshan, an unique natural meadow, has cool climate. In Nanshan, annu- al average temperature was 11.2 ℃; average temperature in the hottest month July was 18.4 ℃, and extremely maximum temperature was 26.8 0℃; average tempera- ture in the coldest month January was 2.2 ℃, and extremely minimum temperature in February was -16.0 ℃. Holstein is resistant to low temperature but not resistant to high temperature. The suitable temperature for Holstein ranges from 11 to 16 ℃, so the climatic environment in Nanshan is suitable for the breeding of Holstein. An- nual average milk yield of each Holstein was up to 6 900 kg, reaching the ad- vanced level of annual average milk yield of each Holstein in China. The milk yield of cows was the highest in June and the lowest in October.展开更多
Taking Nanshan District,Shenzhen as an example,the paper studies the influencing factors of residential rental price via hedonic price model.The hedonic price index system is constructed and relevant characteristic va...Taking Nanshan District,Shenzhen as an example,the paper studies the influencing factors of residential rental price via hedonic price model.The hedonic price index system is constructed and relevant characteristic variables are selected from the perspectives of building characteristics,location characteristics,neighborhood characteristics and rental characteristics.The residential rental data in the second half of 2020 are analyzed by multi-factors linear regression,and hedonic price model of house lease in Nanshan District is obtained to analyze the inherent law of residential rental price structure in this area.展开更多
Affiliation unit: Urumqi Astronomic Observatory, CAS Mainresearch field and disciplinary orientations: Taking radio-astronomy as its main research field,the Station concentrates its efforts on radio-astrophysics, astr...Affiliation unit: Urumqi Astronomic Observatory, CAS Mainresearch field and disciplinary orientations: Taking radio-astronomy as its main research field,the Station concentrates its efforts on radio-astrophysics, astro-telemetry, astro-geodynamics and related techniques. The main research orientations are in the following aspects:展开更多
基金supported by the National Natural Science Foundation of China(41874011,42074007)the Fundamental Research Funds for the Central Universities(2042023kfyq01)。
文摘The Qinghai Nanshan fault is a larger fault in the Northeastern Xizang Plateau.In previous studies,its movement characteristics are mainly investigated with geological and seismic observations,and the tectonic transformation role of the fault on its east is not yet clear.This study uses data fusion to obtain denser GPS observations near the Qinghai Nanshan fault.Based on tectonic characteristics,we establish a block model to investigate the fault slip rate,locking degree,and slip deficit.The results show that the Qinghai Nanshan fault slip rate is characterized by sinistral and convergent movement.Both the sinistral and convergent rates display a decreasing trend from west to east.The locking degree and slip deficit are higher in the western segment(with an average of about 0.74 and 1.1 mm/a)and lower in the eastern segment.Then,we construct a strain rate field using GPS observations to analyze the regional strain characteristics.The results indicate that along the fault,the western segment shows a larger shear strain rate and negative dilation rate.Regional earthquake records show that the frequency of earthquakes is lower near the fault.The joint results suggest that the western segment may have a higher earthquake risk.In addition,the insignificant fault slip rate in the eastern segment may indicate that it does not participate in the tectonic transformation among the Riyueshan,Lajishan,and West Qinling faults.
基金Supported by the "Duanpingkuai" Project of Hunan Meteorological Bureau in 2014~~
文摘Nanshan, an unique natural meadow, has cool climate. In Nanshan, annu- al average temperature was 11.2 ℃; average temperature in the hottest month July was 18.4 ℃, and extremely maximum temperature was 26.8 0℃; average tempera- ture in the coldest month January was 2.2 ℃, and extremely minimum temperature in February was -16.0 ℃. Holstein is resistant to low temperature but not resistant to high temperature. The suitable temperature for Holstein ranges from 11 to 16 ℃, so the climatic environment in Nanshan is suitable for the breeding of Holstein. An- nual average milk yield of each Holstein was up to 6 900 kg, reaching the ad- vanced level of annual average milk yield of each Holstein in China. The milk yield of cows was the highest in June and the lowest in October.
文摘Taking Nanshan District,Shenzhen as an example,the paper studies the influencing factors of residential rental price via hedonic price model.The hedonic price index system is constructed and relevant characteristic variables are selected from the perspectives of building characteristics,location characteristics,neighborhood characteristics and rental characteristics.The residential rental data in the second half of 2020 are analyzed by multi-factors linear regression,and hedonic price model of house lease in Nanshan District is obtained to analyze the inherent law of residential rental price structure in this area.
文摘Affiliation unit: Urumqi Astronomic Observatory, CAS Mainresearch field and disciplinary orientations: Taking radio-astronomy as its main research field,the Station concentrates its efforts on radio-astrophysics, astro-telemetry, astro-geodynamics and related techniques. The main research orientations are in the following aspects:
文摘2023年4月21日,在湖南南山国家公园开展野生动物多样性调查过程中,于白云湖(26°18′36.23″N,110°20′05.43″E;海拔606 m)采集到2号蛙类标本(1雌1雄),经初步形态鉴定,其与桂北琴蛙(Nidirana guibeiensis)特征相似。对采集标本的线粒体16S r RNA进行PCR扩增测序后,构建琴蛙属(Nidirana)部分物种贝叶斯系统发育树,结果显示该蛙类标本与桂北琴蛙聚为一支,且具有较高的支持率(1.00);基于Kimura双参数模型估算,该标本与广西兴安县采集的桂北琴蛙标本间的遗传距离为0,远小于琴蛙属不同种间的遗传距离(3.2%~8.7%)。经形态特征鉴定和系统发育分析,确定该蛙类标本为无尾目(Anura)蛙科(Ranidae)琴蛙属(Nidirana)桂北琴蛙,为湖南省两栖动物新记录种。
