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Спроба вивчення біотопного розподілу
чорного лелеки засобами ГІС
Юрій Струс
2017
Територія
Розміщення локальної гніздової «популяції»
Рельєф, SRTM
Лісівничі планшети
Сітки лісовпорядкування
MS SQL база даних
служби
лісовпорядкування (вік,
тип лісу, лісорослинні
умови, преважаючі
породи, бонітет…)
Шар втрати лісового
покриву за 2000-2014
(globalforestwatch.org)
Гнізда з буферними
зонами (r 100-500м)
Джерела і типи вхідних даних
Приклад аналізу характеристик лісу на гніздових територіях
Частка лісів різних типів на гніздових ділянках
Порівняння з випадковими точками: χ2=7,24, p=0,78, df=11
Порівняння з територією: χ2=6,29, p=0,85, df=11
Порода
Гніздові
ділянки
500м
буфери
500м
буфери
навколо
випадко
вих
точок
(n=108)
Досліджувана
територія
загалом
n % % % % га
Сосна звичайна
71 65,7 61,4 69,1 68,2 266977
Вільха чорна 19 17,6 14,8 11,5 9,1 35517
Береза повисла 11 10,2 16,1 14,2 14,9 58229
Дуб 7 6,5 6,6 4,0 4,6 18169
Вільха 0 0,0 0,4 0,3 0,3 1001
Інші 0 0,0 0,6 0,9 2,1 3038
Разом 108 100 382979
Переважаючі породи дерев на гніздових ділянках
Порівняння з випадковими точками: χ2=3,85, p=0,57, df=5;
Порівняння з територією: χ2=5,32, p=0,38, df=5
Поширення чорного лелеки і лісорослинні умови
Slide 7
Частка лісів різних типів на гніздових ділянках (лісорослинні умови)
Порівняння з випадковими точками: χ2=3,85, p=0,57, df=5
Порівняння з територією: χ2=5,32, p=0,38, df=5
Поширення чорного лелеки і старовікові ліси
Частка лісів різної вікової категорії на гніздових ділянках
Порівняння з випадковими точками: χ2=16,59, p=0,005, df=5
Порівняння з територією: χ2=3,34, p=0,65, df=5
Частка лісів різник класів бонітету на гніздових ділянках
Порівняння з випадковими точками: χ2=2,25, p=0,99, df=10
Порівняння з територією: χ2=1,70, p=0,99, df=10
Підхід до виявлення рубок на гніздових ділянках
Поширення чорного лелеки і втрата лісового покриву
Втрата лісу на гніздових ділянках (в радіусі 100, 250, 500м навколо
Slide 9
Відсоток
втрачено
го лісу
К-ть гнізд
Розміри буферів
0-100м 0-200м 0-300м 0-400м 0-500м
Без втрат
n 87 47 26 12 11
% 61,7 33,3 18,4 8,5 7,8
0-20%
n 34 74 98 114 117
% 24,1 52,5 69,5 80,9 83,0
20-40%
n 11 14 14 12 11
% 7,8 9,9 9,9 8,5 7,8
40-60%
n 7 5 2 3 2
% 5,0 3,5 1,4 2,1 1,4
60-80%
n 1 1 1 - -
% 0,7 0,7 0,7 - -
80-100%
n 1 - - - -
% 0,7 - - - -
Узагальнююча статистика по рубках на гніздових ділянках
Дякую за увагу!
Фото: Бокотей А.А.

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