Chapter 1 Flashcards
1
Q
- land bounded by a topographic divide which intercepts, stores and directs/drains rainwater to a stream or river system down to a common outlet known as a mouth either a lake, sea, or ocean
A
WATERSHED
2
Q
- provide water for agricultural, industrial and domestic purposes, they are essential to the socio-economic progress and economic stability of the country
A
WATERSHED
3
Q
- refers to surface divide or top of mountains
A
Topographic divide
4
Q
- refers to underground divide or rock formations.
A
phreatic
5
Q
watershed provides:
A
- timber,
- forage,
- wildlife and also services like
- protective and aesthetic values
6
Q
A watershed is composed of the following resources:
A
- water,
- soil,
- vegetation,
- rock,
- minerals,
- flora and fauna,
- human and improvements.
7
Q
The following are the five 7 Largest basins in the Philippines
Rank Basins Region Drainage Area (ha):
A
- Cagayan (Cagayan Valley) 2,569,648
- Mindanao (S. Mindanao) 2,315,900
- Agusan (N. Mindanao) 1,092,100
- Pampanga (C. Luzon) 975,900
- Agno (Luzon) 595,200
- Abra (Ilocos) 512,500
- Pasig (Laguna) 467,800
8
Q
Types of Streams Found in the Watershed:
A
- Ephemeral stream
- Intermittent stream
- Perennial stream
9
Q
- Stream that has water just after rainfall
A
Ephemeral stream
10
Q
- Stream that has water only during the rainy season
A
Intermittent stream
11
Q
– Stream that has water all through-out the year
A
Perennial stream
12
Q
World’s forest: ______ forest cover
A
30%
13
Q
World’s forest: According to the U.N. FAO, ____ or about 7,665,000 ha of Philippines is forested, (FAO). Of this ____ ( 861,000 ) is classified as primary forest, the most biodiverse and carbon dense form of forest.
A
25.7%; 11.2%
14
Q
World’s forest: Philippines had ______ ha of planted forest
A
352,000
15
Q
- Implies the control or manipulation of watershed to carry out planned activity aimed at attaining, specific objectives.
A
Watershed Management
