نتایج جستجو برای: steppes region

تعداد نتایج: 538411  

Journal: :Remote Sensing 2023

Plant species α-diversity is closely correlated with ecosystem structures and functions. However, whether climate change human activities will reduce plant remains controversial. In this study, potential (i.e., richness: SRp, Shannonp, Simpsonp Pieloup) actual SRa, Shannona, Simpsona Pieloua) during 2000–2020 were quantified based on random forests in grasslands the Tibetan Plateau. Overall, ha...

Journal: :Nature Conservation Research: Zapovednaâ Nauka 2022

Curculionoidea (hereinafter – weevils) comprises the largest group of phytophagous beetles. They are an integral component terrestrial and freshwater communities associated with a wide range plants. Therefore, weevils can serve as one model taxa for assessing diversity specificity biota, including those in Protected Areas various ranks. This article is based on results original studies (in 2011...

Journal: :Frontiers in Environmental Science 2022

The soil–vegetation relationships are reciprocal and fundamental for terrestrial ecosystem integrity. However, the long-term degradation of vegetation cover alters edaphic conditions, which can lead to habitats, obstructs proper functioning. This study aimed assess effects perennial steppe due overgrazing (i.e., continuous free grazing) on physicochemical characteristics soil fertility in range...

Journal: :Ecological processes 2022

Abstract Background Understanding the response of plant community to increasing nitrogen (N) and phosphorus (P) inputs is helpful for managing protecting grassland ecosystems in semiarid areas. However, information about different types steppe responses N P availability grasslands limited. In 2017–2018, two field experiments were conducted with six levels (from 5 30 g m ?2 yr ?1 ) 2.5 15 additi...

پایان نامه :0 1371

in order to examine the ecological conditions and characteristics of fraxinus excelsior l. in the northern forests of iran 6 main areas as well as some miscellaneous ones , have been selected in the region respectively in : lomir2, shafaroud , park - e-noor , ahlam , alandan and noor.

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید