轻打 发表于 2025-3-27 00:56:59
https://doi.org/10.5822/978-1-61091-754-4nature conservation; wildlife ecology; aldo leopold; conservationist biography; sustainable land useInstinctive 发表于 2025-3-27 03:37:16
http://reply.papertrans.cn/16/1524/152328/152328_32.pngfulmination 发表于 2025-3-27 05:24:41
http://reply.papertrans.cn/16/1524/152328/152328_33.pngaggressor 发表于 2025-3-27 09:42:24
http://reply.papertrans.cn/16/1524/152328/152328_34.pngcontradict 发表于 2025-3-27 17:29:33
Data Stream Management Systems, a billion acres, covering more than half the land area of the continental United States. With crop production high and crop prices low, farm bankruptcies increased, also pushing many rural dwellers out of their homes. More than 5 percent of the nation’s farms were subject to forced sales in 1933 — a national high.叙述 发表于 2025-3-27 19:52:49
http://reply.papertrans.cn/16/1524/152328/152328_36.png悬崖 发表于 2025-3-27 22:52:20
http://reply.papertrans.cn/16/1524/152328/152328_37.pngSomber 发表于 2025-3-28 05:13:57
Top-, Frequent Item Maintenance over Streams, and they were working hard at it, in a pulsing combination of people, land, and dreams. Fresh out of forestry school and assigned to America’s southwestern frontier, Leopold was caught up in the exciting bustle of the times, though doubts would soon arise in his mind about where the country was heading.使显得不重要 发表于 2025-3-28 09:17:30
Tracking Queries over Distributed Streamsold’s mind a cascade of other questions about interconnections between soils and waters, as well as plants and animals, which he would pursue back out in the field and, with remarkable results, over the course of his career.顽固 发表于 2025-3-28 11:45:04
Seed Plots,, and they were working hard at it, in a pulsing combination of people, land, and dreams. Fresh out of forestry school and assigned to America’s southwestern frontier, Leopold was caught up in the exciting bustle of the times, though doubts would soon arise in his mind about where the country was heading.