Combining chemical and biological parameters to assess the ecological quality of a coastal ecosystem in the Levantine Basin

Author(s):  
Myriam Ghsoub ◽  
Milad Fakhri ◽  
Thierry Courp ◽  
Myriam Lteif ◽  
Gaby Khalaf ◽  
...  
2015 ◽  
Vol 54 ◽  
pp. 137-152 ◽  
Author(s):  
Pierre-Alexandre Rastorgueff ◽  
Denise Bellan-Santini ◽  
Carlo Nike Bianchi ◽  
Simona Bussotti ◽  
Pierre Chevaldonné ◽  
...  
Keyword(s):  

2021 ◽  
Vol 68 (07) ◽  
pp. 7-11
Author(s):  
Mahir Həmzə oğlu Hacıyev ◽  
◽  
Vəfa İbrahim qızı Məhərrəmova ◽  

The article clarifies the effect of the leaves of various newly created ploidy mulberry varieties on the productivity of mulberry silkworms, as well as on the biological parameters of silkworms. New varieties are described by conducting varietal feeding to determine the feed quality of varieties by providing information on leaf yield and the leaf yield of newly created varieties, by studying the biological parameters of varietal feeding, by determining the average mass of alive cocoons, silkness%, cocoon yield. Keywords: mulberry, sort, leaf yield, silkiness, viability, average weight of cocoon, cocoon product


2021 ◽  
pp. 67-98
Author(s):  
Daniele Tubino P. de Souza ◽  
Edson Grandisoli ◽  
Pedro Roberto Jacobi ◽  
Arjen E. J. Wals

2018 ◽  
Vol 10 (5) ◽  
pp. 1373-1392
Author(s):  
Taina Turial da Silva ◽  
Kamila Soares do Espírito Santo ◽  
Silvia T. Matsumoto ◽  
Josimar Ribeiro

2021 ◽  
Vol 932 (1) ◽  
pp. 012011
Author(s):  
Y Wang

Abstract The Shiyang River basin is a typical inland arid region and one of the most fragile and sensitive areas of terrestrial ecosystems in China, and it is important to understand its ecological changes in a timely and accurate manner. This article selects the Shiyang River basin forest as the research area and uses Google Earth Engine (GEE) to evaluate and monitor the ecological environment quality of the Shiyang River basin from 1990 to 2020. The geographical detector model (GDM) was also used to analyse the sensitivity of the forest ecological environment to three natural factors: elevation, temperature and altitude. The results showed that the ecological quality of the natural forest is significantly better than that of the man-made forest area, and the ecological quality grade is higher. The forest change area RSEI has a large annual variation in ecological quality and is vulnerable to external factors. Among the influencing natural factors, the sensitive factors of precipitation and altitude are both greater than 84%. The temperature sensitivity of natural forests is stronger than that of man-made forests, ranging from 66% to 92% overall.


2002 ◽  
Vol 294 (1-3) ◽  
pp. 131-159 ◽  
Author(s):  
D.J Gilvear ◽  
K.V Heal ◽  
A Stephen

Kybernetes ◽  
2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Yun Teng ◽  
Boyuan Pang ◽  
Xiangyu Guo

PurposeThe authors are committed to providing the Chinese government with a foundation for making decisions that will protect black land and ensure long-term agricultural development.Design/methodology/approachUsing the grounded theory approach, this study investigates the influencing factors affecting the quality of black land in Northeast China and proposes a hypothetical model for the mechanism of the influencing factors on the quality of black land in Northeast China.FindingsThe factors influencing the quality of black land include not only soil quality, ecological quality and environmental quality, but also economic quality and management quality, and can be classified into five categories. There are complex influence relationships between various factors and black land quality, with soil quality, ecological quality, environmental quality and management quality having a positive influence on economic quality. Soil quality, ecological quality and environmental quality are all improved as a result of good management. Black land quality is influenced positively by environmental quality, economic quality and management quality.Research limitations/implicationsThe quality of black land is a major concern in terms of food production and long-term agricultural development. The black land in Northeast China was chosen as the subject of this study, and the research findings have some limitations. The next step will be to expand from studying the black land in Northeast China to the black land worldwide.Originality/valueIn Northeast China, the quality of the five dimensions of black land must be improved in a coordinated and consistent manner.


1999 ◽  
pp. 47-58
Author(s):  
M. Lazaridou-Dimitriadou ◽  
V. Artemiadou ◽  
G. Yfantis ◽  
S. Mourelatos ◽  
Y. Mylopoulos

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