Results 311 to 320 of about 1,076,242 (360)

Desert Steppe Ecosystem

2020
This chapter focuses on Chinese desert steppe ecosystems. It introduces in brief the areal extent and provincially based distribution of this ecosystem type, simply discusses the relevant physical features and climatic characteristics at a regional scale, elaborates in great detail upon the flora, fauna, and microflora composing the various desert ...
Linghao Li, Jiquan Chen, Xingguo Han, Wenhao Zhang, Changliang Shao   +4 more
openaire   +1 more source

Desert Rangeland Ecosystem

2020
This chapter focuses on Chinese desert rangeland ecosystems. It introduces in brief the areal extent and provincially based distribution of this ecosystem type; simply discusses the relevant physical features and climatic characteristics at a regional scale; elaborates in great detail upon the flora, fauna, and microflora composing the various desert ...
Linghao Li, Jiquan Chen, Xingguo Han, Wenhao Zhang, Changliang Shao   +4 more
openaire   +1 more source

Granivory in Desert Ecosystems

Annual Review of Ecology and Systematics, 1979
Some of the most challenging questions of contemporary biology concern the diversity and stability of ecological communities. In most natural habi­ tats many coexisting species of plants, animals, and microbes interact as competitors, mutualists, predators, and prey.
James H. Brown, O. J. Reichman, Diane W. Davidson   +2 more
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Productivity of Desert Ecosystems

BioScience, 1981
Primary production in desert ecosystems is limited by precipitation, nutrient availability (especially nitrogen), and the species' production potential. Plant biomass provides food for consumers that occupy several trophic levels. The resultant transfer of energy and nutrients is also water-limited as are rates of decomposition and activities of ...
Neil F. Hadley, Stan R. Szarek
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Entomofaunal Communities in Desert Ecosystems

2021
Desert is a natural habitat for a huge number of biotic systems (floral and faunal systems). These members depend on each other and on the already existing abiotic variables through a series of dynamic interactions to ensure their survival and kind conservation.
Imam I. Ahmed, Amany N. Mansour
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Long-Term Warming and Nitrogen Addition Have Contrasting Effects on Ecosystem Carbon Exchange in a Desert Steppe.

Environmental Science and Technology, 2021
Desert steppe, a unique ecotone between steppe and desert in Eurasia, is considered highly vulnerable to global change. However, the long-term impact of warming and nitrogen deposition on plant biomass production and ecosystem carbon exchange in a desert
Qian Wu, Haiyan Ren, T. Bisseling, Scott X. Chang, Zhen Wang, Yuanheng Li, Zhanlei Pan, Yinghao Liu, J. Cahill, Xu Cheng, Mengli Zhao, Zhongwu Wang, Zhiguo Li, G. Han   +13 more
semanticscholar   +1 more source

Bioresearches of Fragile Ecosystem/Desert

Proceedings of the National Academy of Sciences, India Section B: Biological Sciences, 2012
The proponents of anthropocene (the era of human-induced climatic changes) suggest that unless humanity changes its behavior according to earth system rules there will be no more holocene-type relative stability. Even the sustainability of the Earth’s life support systems is threatened.
Narpat S. Shekhawat, Mahendra Phulwaria, null Harish, Manoj K. Rai, Vinod Kataria, Smita Shekhawat, Amit K. Gupta, Nitika S. Rathore, Meena Vyas, Nisha Rathore, null Vibha J. B., Sumitra K. Choudhary, Ashok K. Patel, Deepika Lodha, Rachana Modi   +14 more
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Mercury Deposition in a Polar Desert Ecosystem

Environmental Science & Technology, 2008
Trace metals have received considerable attention in the recent decades due to their potential toxic nature. Glacial snow and ice have been used extensively to elucidate historical changes in the atmospheric composition of trace metals and other compounds.
Rebecca A, Witherow, W Berry, Lyons
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Soil bacterial community succession during desertification in a desert steppe ecosystem

Land Degradation and Development, 2020
Desertification often occurs in fragile steppe ecosystems, which may lead to severe soil degradation. Understanding how soil microbial communities respond to desertification is critical for ecological restoration of degraded desert steppes.
Miaochun Fan, Jiajia Li, Zhuangsheng Tang, Zhouping Shangguan   +3 more
semanticscholar   +1 more source

On carbon sequestration in desert ecosystems

Global Change Biology, 2009
AbstractRecent reports of net ecosysytem production >100 gCm−2 yr−1 in deserts are incompatible with existing measurements of net primary production and carbon pools in deserts. The comparisions suggest that gas exchange measurements should be used with caution and better validation if they are expected to indicate the magnitude of carbon sink in ...
Schlesinger, William H., Belnap, Jayne, Marion, Giles   +2 more
openaire   +1 more source