PAN
发表于 2025-3-25 04:00:23
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固执点好
发表于 2025-3-25 10:34:11
Transaktionskostentheoretische Grundlagen,asslands and rangelands thus drought tolerant grasses and shrubs dominate rather than trees. Plants either: grow fast and flower as soon as the soil warms and water is available, then die when the soil dries; or they have long roots to access water deep in the soil. Under grass dominated vegetation,
骑师
发表于 2025-3-25 12:19:40
https://doi.org/10.1007/978-3-8350-9635-6a and cold deserts such as the Dry Valleys of Antarctica. Geothermal activity creates extreme environments of heat and acidity or alkalinity that challenges survival for all but a few specially adapted organisms. Hostile environments are not the place for productive agriculture but their raw beauty
pulse-pressure
发表于 2025-3-25 16:51:26
https://doi.org/10.1007/978-3-8350-9635-6y ground! The major tectonic processes on Earth lift land above sea-level, and thus, make terrestrial life possible. Over long time periods whole continents are created and destroyed. Mountain chains are uplifted, eroded and washed back to the sea. On a more human timescale we deal with the day-to-d
胖人手艺好
发表于 2025-3-25 23:59:21
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浪荡子
发表于 2025-3-26 01:56:28
https://doi.org/10.1007/978-3-8350-9635-6opulation reached seven billion. Soils now produce food for more than twice as many people as existed in 1970. Soils also provide clean water, fuel, building materials, fibre, habitat, medicines, and they dispose of our wastes and recycle the nutrients that are vital to life on Earth. Our cities are
异常
发表于 2025-3-26 05:56:53
M.R. Balks,D. ZabowskiReveals the dazzling variety of soils that support forests, lakes, cities, farms, roads and the landscape around us.Illustrates in a very friendly way the wonders of soils and bond between nature and
假设
发表于 2025-3-26 09:27:23
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arboretum
发表于 2025-3-26 13:33:38
Soils in Harmony with the Environment,a diversity of landscapes from Antarctic deserts to tropical rainforests, each with a complex variety of soils. Soils form in response to five environmental factors: the geological materials and organic matter that form the . from which soils are derived; . or position in the landscape; the .; livin
细丝
发表于 2025-3-26 17:14:59
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