PDC Sustainable Land Use & Water Management

Question 1

What is a key goal of sustainable land use?

Accepted Answer

Balance human needs with ecosystem health

Answer

A key goal of sustainable land use is to manage natural resources in a way that meets the needs of the present generation without compromising the ability of future generations to meet their own needs. This involves carefully balancing agricultural production, urban development, and resource extraction with the preservation of biodiversity, soil fertility, and water quality. It ensures long-term ecological and human well-being.

Question 2

Which practice helps prevent soil erosion?

Accepted Answer

Contour planting and cover crops

Answer

Contour planting involves tilling and planting across a slope, following the land's natural contours, which creates small ridges that slow down water runoff and prevent soil from being washed away. Cover crops, planted between main crops or during fallow periods, protect the soil surface from wind and rain, add organic matter, and improve soil structure. Both practices significantly reduce soil erosion and maintain soil health.

Question 3

What is rainwater harvesting?

Accepted Answer

Collecting and storing rainwater

Answer

Rainwater harvesting is the practice of collecting and storing precipitation from surfaces like rooftops or other impervious areas for later use. This collected water can be utilized for irrigation, flushing toilets, or even potable uses after proper treatment. It reduces reliance on municipal water supplies, conserves freshwater resources, and helps manage stormwater runoff.

Question 4

Why is wetland conservation important?

Accepted Answer

Filter pollutants and support wildlife

Answer

Wetlands are incredibly valuable ecosystems that provide numerous ecological services. They act as natural filters, removing pollutants and excess nutrients from water before it enters rivers and lakes, thereby improving water quality. Additionally, wetlands provide critical habitats for a vast array of plant and animal species, supporting biodiversity and serving as important breeding grounds for wildlife.

Question 5

What is drip irrigation?

Accepted Answer

Watering plant roots efficiently

Answer

Drip irrigation is a highly efficient watering method that delivers water directly to the plant's root zone. This minimizes water loss from evaporation and runoff, ensuring plants receive moisture precisely where needed while significantly conserving water resources compared to traditional methods.

(PDC) Permaculture Design Certification Practice Test

(PDC) Permaculture Design Certification Practice Test

PDC Sustainable Land Use & Water Management