7 O`simlik hayvonat resurslari va uni muhofaza qilish. Reja

Tabiiy muhitni tiklash
Tabiiy muhitga insoniyat faoliyati orqali ziyon yetkaziladi yoki o’zgartiriladi. Tabiiy muhitni tiklash bu zarar yetkazilgan tabiiy muhitni oldingi sog’lom holiga qaytarishdan iborat bo’lgan jarayonni o’z ichiga oladigan holatidir .
Rode orolining Naragansent ko’rfazi baliq ovida muhim hudud sanaladi. Bu yapoloq baliq, tanga baliq, ko’k qisqichbaqa va boshqa muhim ozuqa turlarini saqlashga xizmat qiladi. Suv o’tlari ko’rfazning sayoz joylarida o’sadi va shu o’tlarning yosh turlarini tabiiy muhitini rivojlantiradi. Rode orolida aholining o’sishi ko’rfaz suv o’tlarining yo’qotilishiga sabab bo’ldi. Baliq ovlash esa qisqartirildi.
CITES tashkiloti
AQSHda 1970 - yillarda turlarni muhofaza qilish chora tadbirlari omma tomonidan qabul qilindi. 1973 yilda esa yo’qolish xavfi ostidagi turlarni muhofaza qilish akti tuzildi.1975 yilda esa Yovvoyi Fauna va floradagi yo’qolish xavfi ostidagi turlarni xalqaro savdosi to’g’risidagi Konventsiya qabul qilingan. Bu hozirda CITES nomi bilan tanilgan. Bu kelishuvga asosan hozirgi kunda 5000 ga yaqin hayvon turlari va 25 mingga yaqin o’simlik turlari muhofazaga olingan (2005).¹
Habitat Preservation Even if a species is protected by law,it cannot survive unless its habitat also is protected.Conservation biology often focuses on protecting habitats, oreven whole ecosystems. One way to do this is to create naturepreserves, such as national parks and protected wildlife areas.The United States established its first national park—Yellowstone National Park—in 1872. At that time, large animalslike grizzly bears, elk, and moose ranged over much of NorthAmerica. These animals roam across large areas of land in searchof food. If their habitat becomes too small, they cannot survive.The grizzly bear, for example, requires large quantities of foodeach day. To feed itself, a grizzly needs a territory of several hundredsquare kilometers.Without national parks and wildlife areas,some animals would be far fewer in number than they are today.