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A satellite image of the Sahara, the world's largest hot desert and third largest desert after Antarctica and the Arctic. Desert greening is the process of afforestation or revegetation of deserts for ecological restoration (biodiversity), sustainable farming and forestry, but also for reclamation of natural water systems and other ecological systems that support life.
A paloverde tree acting as a nurse plant to a saguaro in the Sonoran Desert not far from the Superstition mountains. A nurse plant is one that serves the ecological role of helping seedlings establish themselves, and of protecting young plants from harsh conditions. This effect is particularly well studied among plant communities in xeric ...
By contrast, tropical reforestation projects lead to a positive change such as the formation of clouds. These clouds then reflect the sunlight, lowering temperatures. [57]: 1457 Planting trees in tropical climates with wet seasons has another advantage. In such a setting, trees grow more quickly (fixing more carbon) because they can grow year ...
It aims to plant 50 million trees. [111] Despite this, the UK government has been criticized for not achieving its tree planting goals. [112] [113] There have also been concerns of non-native tree planting disturbing the ecological integrity and processes of what would be a native habitat restoration. [114]
Some plants will even reduce the germination rate of other plants by 50%. [33] Current research is focused on the effects of weeds on crops, crops on weeds, and crops on crops. [38] [39] This research furthers the possibility of using allelochemicals as growth regulators and natural herbicides, to promote sustainable agriculture. [40]
The predicted outcome of global warming in this subtropical region, is the reduction of plant/animal productivity and growth. Another effect would be that the increase of climate warming would also lead to tree mortality affecting not only the pine trees located in the Sierra Madre Occidental but also other pine trees in the surrounding areas.
A eucalyptus plantation in final stages at Arimalam.. The type of tree planted may have great influence on the environmental outcomes. It is often much more profitable to outside interests to plant fast-growing species, such as eucalyptus, casuarina or pine (e.g., Pinus radiata or Pinus caribaea), even though the environmental and biodiversity benefits of such monoculture plantations are not ...
Plants and animals utilize soil for food and shelter, disturbing the upper soil layers and transporting chemically weathered rock called saprolite from the lower soil depths to the surface. [3] Terrestrial bioturbation is important in soil production, burial, organic matter content, and downslope transport.