scholarly journals Reproductive capacity for sprouts of 7 tree species following cutting in old secondary forests at the warm temperate zone

2012 ◽  
Vol 38 (1) ◽  
pp. 109-114 ◽  
Author(s):  
Keitaro YAMASE
Keyword(s):  
Tree Species ◽  
Temperate Zone ◽  
Reproductive Capacity ◽  
Secondary Forests ◽  
Warm Temperate Zone ◽  
Warm Temperate

scholarly journals Process-Based Indicators for Timely Identification of Apricot Frost Disaster on the Warm Temperate Zone, China

2021 ◽  
Author(s):  
Yang Jianying ◽  
Zhiguo Huo ◽  
Peijuan Wang ◽  
Wu Dingrong ◽  
Yuping Ma
Keyword(s):  
Economic Value ◽  
Temperate Zone ◽  
Late Spring ◽  
Cold Weather ◽  
Accurate Identification ◽  
Spring Frost ◽  
Late Spring Frost ◽  
Disaster Data ◽  
Warm Temperate Zone ◽  
Warm Temperate

Abstract Frequent occurrences of extreme cold weather processes create severe agricultural/forest frost events, even given the background of global warming. In the warm temperate zone of China, which is the largest planting area for fresh apricot, late spring frost disaster has become one of the major meteorological hazards during flowering. To prevent cold weather-induced apricot frost events and reduce potential losses in related fruit economic value, it is vital to establish a meteorological indicator for timely and accurate identification of cold weather process-based apricot frost events, to provide support for timely apricot frost monitoring and warning in late spring. In this study, daily minimax temperature (Tmin) and apricot frost disaster data during flowering were combined to establish meteorological identification indicators of apricot frost based on cold weather processes. A process-based apricot frost model (f(D,Tcum) was firstly constructed, and characteristics of (Tcum) (accumulated harmful temperature) were explored under different D (duration days) based on the representation of historical apricot frost processes. Thresholds for the (Tcum) for apricot frost in 1, 2, 3, 4 and more than 5 days of apricot frost process were determined as -1.51, -2.92, -4.39, -5.84 and − 7.31°C, respectively. Validation results by reserved independent disaster samples were generally consistent with the historical records of apricot frost disasters, with 89.00% accuracy for indicator-based identification results. Typical process tracking of the proposed identification indicator to an apricot frost event that occurred in North Hebei during April 3–9, 2018 revealed that the indicator-based identification result basically coincides with the historical disaster record and can reflect more detailed information about the apricot frost process.

Late Guadalupian (Middle Permian) Fusuline Fauna from the Xiala Formation in Xainza County, Central Tibet: Implication of the Rifting Time of the Lhasa Block

2010 ◽  
Vol 84 (5) ◽  
pp. 955-973 ◽  
Author(s):  
Yi-Chun Zhang ◽  
Li-Ren Cheng ◽  
Shu-Zhong Shen
Keyword(s):  
Temperate Zone ◽  
Middle Permian ◽  
The North ◽  
Warm Temperate Zone ◽  
Central Tibet ◽  
Warm Temperate

A fusuline fauna consisting of 9 species of 4 genera from the Xiala Formation of the Mujiucuo section, Xainza County, Tibet, China is described. The fusuline fauna is dominated byNankinellaandChusenellaand indicates a Midian (Late Guadalupian) age. The earliest record of fusuline fauna during the Midian in the Lhasa Block suggests that the block rifted later than the Qiangtang Block to the north and the Baoshan and Tengchong blocks to the east, all of which yield much earlier fusuline faunas of Yakhtashian (Artinskian) age, but had drifted away from Gondwana to a relatively warm temperate zone in the Late Guadalupian (Middle Permian).

scholarly journals Process-based indicators for timely identification of apricot frost disaster on the warm temperate zone, China

2021 ◽  
Author(s):  
Jianying Yang ◽  
Zhiguo Huo ◽  
Peijuan Wang ◽  
Dingrong Wu ◽  
Yuping Ma ◽  
...  
Keyword(s):  
Temperate Zone ◽  
Warm Temperate Zone ◽  
Warm Temperate
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