Variations in root chemistry of three common forest species, southwestern China

2018 ◽  
Vol 30 (3) ◽  
pp. 827-834
Author(s):  
Qun Liu ◽  
Wanqin Yang ◽  
Fuzhong Wu ◽  
Bo Tan ◽  
Li Zhang ◽  
...  
Keyword(s):  
Southwestern China ◽  
Forest Species ◽  
Root Chemistry

Influence of parent material and soil type on the root chemistry of forest species grown on acid soils

2004 ◽  
Vol 193 (3) ◽  
pp. 307-320 ◽  
Author(s):  
M.Camps Arbestain ◽  
C Mourenza ◽  
E Álvarez ◽  
F Macı́as
Keyword(s):  
Soil Type ◽  
Acid Soils ◽  
Parent Material ◽  
Forest Species ◽  
Root Chemistry

Regeneration pattern of primary forest species across forest-field gradients in the subtropical Mountains of Southwestern China

2010 ◽  
Vol 123 (6) ◽  
pp. 751-762 ◽  
Author(s):  
Xiao-Shuang Li ◽  
Wen-Yao Liu ◽  
Jun-Wen Chen ◽  
Cindy Q. Tang ◽  
Chun-Ming Yuan
Keyword(s):  
Southwestern China ◽  
Primary Forest ◽  
Forest Species ◽  
Regeneration Pattern ◽  
Field Gradients

Reconstruction of maximum temperature on Zhegu Mountain, western Sichuan Plateau (China)

2020 ◽  
Vol 81 ◽  
pp. 1-14
Author(s):  
M Keyimu ◽  
Z Li ◽  
Y Zhao ◽  
Y Dong ◽  
B Fu ◽  
...  
Keyword(s):  
Tree Growth ◽  
Ring Width ◽  
Volcanic Eruptions ◽  
Southwestern China ◽  
Maximum Temperature ◽  
Driving Mechanism ◽  
Western Sichuan ◽  
Relationship Analysis ◽  
Decadal Scale ◽  
Thermal Variability

Historical temperature reconstructions at high altitudes are still insufficient in southwestern China, which is considered one of the most sensitive areas to climate change in the world. Here we developed a tree ring-width chronology of Faxon fir Abies fargesii var. faxoniana at the upper timber line on Zhegu Mountain, Miyaluo Scenic Area, western Sichuan, China. The climate-tree growth relationship analysis indicated temperature as the dominant regulator on radial tree growth in this region. The reconstruction of aggregated maximum temperature (TMX) of autumn and winter for the period 1856-2016 was achieved with a linear regression model that accounted for 43.6% of the actual variability in the common time series (1954-2016). The reconstruction identified 4 warm periods and 3 cold periods. Similarities of warm and cold periods with previously published reconstructions from nearby sites indicated the reliability of our reconstruction. The significant positive correlation between TMX reconstruction and the Asian-Pacific Oscillation index and the Atlantic Multi-decadal Oscillation index suggested a linkage between large-scale climate circulations and the thermal variability at a multi-decadal scale on the western Sichuan Plateau. We also found that solar activity exerted a strong influence on decadal temperature variability in this region. The cold periods were matched well with historical large volcanic eruptions. Our results strengthen the historical climatic information in southwestern China and contribute to further understanding the regional thermal variability as well as its driving mechanism.

Steigende Bestandszahlen bei Spechten und anderen Vogelarten dank Zunahme von Totholz? | An increase in the population of woodpeckers and other bird species thanks to an increase in the quantities of deadwood?

2009 ◽  
Vol 160 (11) ◽  
pp. 334-340 ◽  
Author(s):  
Pierre Mollet ◽  
Niklaus Zbinden ◽  
Hans Schmid
Keyword(s):  
Forest Inventory ◽  
Bird Species ◽  
National Forest Inventory ◽  
Population Increase ◽  
National Forest ◽  
Forest Species ◽  
Breeding Populations ◽  
Willow Tit ◽  
Middle Spotted Woodpecker ◽  
Important Habitat

Results from the monitoring programs of the Swiss Ornithological Institute show that the breeding populations of several forest species for which deadwood is an important habitat element (black woodpecker, great spotted woodpecker, middle spotted woodpecker, lesser spotted woodpecker, green woodpecker, three-toed woodpecker as well as crested tit, willow tit and Eurasian tree creeper) have increased in the period 1990 to 2008, although not to the same extent in all species. At the same time the white-backed woodpecker extended its range in eastern Switzerland. The Swiss National Forest Inventory shows an increase in the amount of deadwood in forests for the same period. For all the mentioned species, with the exception of green and middle spotted woodpecker, the growing availability of deadwood is likely to be the most important factor explaining this population increase.

USING FALLOUT RADIONUCLIDES TO IDENTIFY THE EROSIONAL IMPACT OF LAND USE IN SOUTHWESTERN CHINA

2019 ◽  
Author(s):  
Paige N. Monyak ◽  
◽  
Sophia Maffie ◽  
Alexandra Grande ◽  
Emily A. Bermudez ◽  
...  
Keyword(s):  
Land Use ◽  
Southwestern China ◽  
Fallout Radionuclides

scholarly journals Remote Sensing Methods for the Retrieval of Inventory and Bioproductivity Parameters of Forests Using High Resolution Satellite Images

2019 ◽  
Vol 75 ◽  
pp. 01003 ◽  
Author(s):  
Egor Dmitriev ◽  
Vladimir Kozoderov ◽  
Sergey Donskoy ◽  
Petr Melnik ◽  
Anton Sokolov
Keyword(s):  
Satellite Images ◽  
High Spatial Resolution ◽  
Texture Features ◽  
Forest Species ◽  
Effective Learning ◽  
Estimated Parameters ◽  
High Resolution Satellite Images ◽  
Automated Processing ◽  
Tver Region ◽  
Remote Sensing Methods

A method for automated processing high spatial resolution satellite images is proposed to retrieve inventory and bioproductivity parameters of forest stands. The method includes effective learning classifiers, inverse modeling, and regression modeling of the estimated parameters. Spectral and texture features are used to classify forest species. The results of test experiments for the selected area of Savvatievskoe forestry (Russia, Tver region) are presented. Accuracy estimates obtained using ground-based measurements demonstrate the effectiveness of using the proposed techniques to automate the process of updating information for the State Forest Inventory program of Russia.

Fifteen new species and a new country record of Labomimus Sharp from China, with a checklist of world species (Coleoptera: Staphylinidae: Pselaphinae)

Zootaxa ◽  
2019 ◽  
Vol 4554 (2) ◽  
pp. 497 ◽  
Author(s):  
YU-QING ZHANG ◽  
LI-ZHEN LI ◽  
ZI-WEI YIN
Keyword(s):  
Hong Kong ◽  
New Species ◽  
Southwestern China ◽  
World Species ◽  
Diagnostic Characters ◽  
Northeastern India

The diversity of the ‘Pselaphodes complex’ of genera from Asia remains fragmentally documented. Herein we describe fifteen new species of the genus Labomimus Sharp from China: L. assingi sp. nov. and L. dilatatus sp. nov. from Shaanxi, L. longnan sp. nov. and L. minshanus sp. nov. from Gansu, L. chouwenii sp. nov. from Taiwan, L. yue sp. nov. from Guangdong, L. howaichuni sp. nov. from Hong Kong, L. jinfomontis sp. nov. from Chongqing, L. niger sp. nov. from Sichuan, L. maolan sp. nov. from Guizhou, L. corpulentus sp. nov., L. dulongensis sp. nov., and L. wuchaoi sp. nov. from Yunnan, and L. medogensis sp. nov. and L. qiujianyuae sp. nov. from Xizang. A little known species, L. torticornis (Champion), originally described from Assam, northeastern India, is newly recorded in Yunnan, southwestern China. Illustrations of the habitus and major diagnostic characters of all treated species are provided. A checklist and a distributional map of world species are given. 

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