Zobrazeno 1 - 10
of 542
pro vyhledávání: '"Simpson Index"'
Publikováno v:
Heliyon, Vol 10, Iss 5, Pp e26509- (2024)
Policy advocates commonly use income diversification strategies worldwide to address economic disturbances such as poverty. Realizing the importance of poverty reduction and the raging debate on whether the household should specialize or diversify th
Externí odkaz:
https://doaj.org/article/e8ba78d70d09460a9fd2bec69919c756
Publikováno v:
Iranian Journal of Animal Biosystematics, Vol 19, Iss 1, Pp 23-32 (2023)
The Bombyliidae family with around 5382 described species is one of the most important families in order Diptera considering their remarkable roles in biological pest control. Species of the family Bombyliidae were monitored in Guilan province in 201
Externí odkaz:
https://doaj.org/article/19d728793b7f4b229142360abeea51fd
Publikováno v:
Ecological Indicators, Vol 158, Iss , Pp 111449- (2024)
Increasing attention for adjusting forest structural and species diversity has been paid to enhance carbon storage. However, the relative importance of stand spatial structural diversity and species diversity to restored stand carbon stocks remains u
Externí odkaz:
https://doaj.org/article/ad62c5d939fa4f87a93097e2525c0878
Publikováno v:
Mathematics, Vol 12, Iss 4, p 507 (2024)
In this short communication, following a brief introduction, we undertake a comprehensive analytical study of the weighted Simpson index. Our primary emphasis concerns the precise determination of the optimal point (minimizer) coordinates and of the
Externí odkaz:
https://doaj.org/article/f3dc19c13a1749b2b1d2e8e14d714e13
Publikováno v:
Grey Systems: Theory and Application, 2021, Vol. 12, Issue 1, pp. 252-268.
Externí odkaz:
http://www.emeraldinsight.com/doi/10.1108/GS-09-2020-0125
Publikováno v:
بوم شناسی کشاورزی, Vol 14, Iss 1, Pp 1-18 (2022)
Introduction Characteristics such as the high levels of agrobiodiversity, the efficiency of the nutrition, and also variety in ecological and socio-economic functions have altered home gardens into the appropriate model for achieving a sustainable ag
Externí odkaz:
https://doaj.org/article/3e2aa4bac40c4c79973d434ec43b8bc4
Autor:
Yue Gu, Junhui Zhang, Wang Ma, Yue Feng, Leilei Yang, Zhuo Li, Yanshuang Guo, Guoqiang Shi, Shijie Han
Publikováno v:
Forests, Vol 14, Iss 6, p 1241 (2023)
Species diversity has been shown to be influenced by environmental factors, but the mechanism underlying their relationship remains unclear across spatial scales. Based on field investigation data collected from 3077 sample plots in temperate forest
Externí odkaz:
https://doaj.org/article/e569d6aab69f415687dbb24462eb8670
Publikováno v:
بوم شناسی کشاورزی, Vol 13, Iss 1, Pp 1-21 (2021)
Introduction Nowadays, with increasing tendency to monoculture of medicinal and horticultural plants, the range of genetic diversity in agricultural ecosystems has decreased. Conventional agricultural activities with simplification of ecosystems make
Externí odkaz:
https://doaj.org/article/5961a22dcac34079ba834ade46d65485
Publikováno v:
Land, Vol 12, Iss 1, p 203 (2023)
Land resources are important for millions of rural households in China. With the land tenure system reform and the trend of nonfarm employment, land transfer affects household income and consumption diversity significantly. Utilizing the data from th
Externí odkaz:
https://doaj.org/article/b5375548747d47f193f4c6bf670a3d72
Publikováno v:
Iranian Journal of Applied Ecology, Vol 8, Iss 3, Pp 17-30 (2019)
Forestry plans have been influential on tree species and planting in different ways, regulating tree species diversity. Investigation of the changes in tree species diversity and preservation livestock sustainability by using forestry inventory can b
Externí odkaz:
https://doaj.org/article/b7e6c31258314f30aa669717bd7b40e0