ANALYSIS OF THE INDICATORS OF THE STRUCTURE OF MULTISPECIES TREE STANDS ON THE PLANTED POSTAGROGENOUS LANDS OF VIETNAM IN CUC PHUONG NATIONAL PARK
Abstract and keywords
Abstract (English):
Pri sohranenii i vosstanovlenii tropicheskih lesnyh ekosistem issledovateli v nastoyaschee vremya stalkivayutsya s mnogochislennymi trudnostyami, tak kak struktura tropicheskih lesov ochen' slozhna i specifichna. S ekologicheskoy tochki zreniya strukturnaya harakteristika lesnoy ekosistemy otrazhaet otnoshenie mezhdu ee komponentami i okruzhayuschey sredoy. Strukturnaya slozhnost' stroeniya tropicheskih lesov obespechivaet ih ustoychivost', sposobnost' k razvitiyu i vyzhivaniyu v usloviyah usilivayuschihsya antropogennyh i tehnogennyh nagruzok. Imenno poetomu vazhneyshey zadachey sovremennoy nauki, izuchayuschey tropicheskie lesa, yavlyaetsya issledovanie struktury lesnyh ekosistem, chto pozvolit razrabotat' sootvetstvuyuschie effektivnye meropriyatiya dlya uspeshnogo vosstanovleniya i sohraneniya lesov. V stat'e predstavleny rezul'taty issledovaniya pokazateley stroeniya mnogovidovyh drevostoev na zemlyah byvshego sel'skohozyaystvennogo pol'zovaniya i zemlyah byvshih poseleniy V'etnama v parke Kuk Fyong, chto pozvolit razrabotat' effektivnye meropriyatiya dlya uspeshnogo vosstanovleniya i sohraneniya lesov, a takzhe dal'neyshego ih ispol'zovaniya dlya ekonomicheskogo i social'nogo razvitiya V'etnama. V processe issledovaniya opredelyalis' sleduyuschie pokazateli: vidovoy sostav rasteniy; vysota kazhdogo dereva; diametr kazhdogo dereva; vysota prikrepleniya nizhney zhivoy vetvi; proekciya krony kazhdogo dereva; chastota derev'ev (kolichestvo derev'ev na probnoy ploschadi); gustota (chislennost' derev'ev na 1 ga); somknutost' pologa; istochnik obsemeneniya, a takzhe sostoyanie vseh derev'ev. Provedennoe issledovanie pokazyvaet, chto na obsledovannyh uchastkah postagrogennyh zemel' i zemel' byvshih poseleniy neobhodimo provodit' mery sodeystviya dlya uvelicheniya kolichestva drevesnyh rasteniy dlya posleduyuschego uspeshnogo lesovozobnovleniiya. Taksacionnye pokazateli drevostoev vozobnovivshihsya na zemlyah, ranee ispytyvavshih hozyaystvennoe antropogennoe vozdeystvie, imeyut raznye kolichestvennye parametry v zavisimosti ot kategorii predyduschego pol'zovaniya. Na zemlyah byvshih poseleniy proizrastayut drevostoi iz kategoriy derev'ev, luchshih po kachestvu, chem na postagrogennyh sel'skohozyaystvennyh uchastkah. Raspredelenie derev'ev po kategoriyam kachestva po klassam vysot i diametra kosvenno ukazyvaet na bol'shuyu proizvoditel'nost' uchastkov zemel', ranee ispol'zovavshihsya pod prozhivanie, a ne dlya vedeniya sel'skogo hozyaystva. Vzaimosvyaz' mezhdu srednim diametrom i vysotoy bol'she vyrazhena dlya postagrogennyh zemel'.

Keywords:
postagrogennye zemli, zemli byvshih poseleniy, estestvennoe vozobnovlenie, vidovoe raznoobrazie, diametr i vysota dereva, gustota derev'ev, kategorii kachestva derev'ev
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