El plano de situación identifica la reserva de espacio.

Because Spanish nouns have grammatical gender.

• plano is a masculine noun, so it takes el
• reserva is a feminine noun, so it takes la

So:

• el plano
• la reserva

This is about the gender of the nouns themselves, not about any real-world sex.

Plano de situación is a fixed expression often used in technical, architectural, urban-planning, or administrative contexts.

A plano is usually a plan, drawing, or map-like technical document.
De situación means something like showing the location/situation.

So plano de situación often means:

• site plan
• location plan
• situational map/plan

The exact English translation depends on the context, but in Spanish this is a normal technical phrase.

In Spanish, de is very commonly used to link two nouns, where English might use:

• of
• a noun + noun combination
• an adjective-like noun

So:

• plano de situación = location plan / plan of location
• reserva de espacio = space reservation / reservation of space

Spanish often prefers noun + de + noun where English may use a compound noun.

Because the subject is singular: El plano de situación.

The main noun of the subject is plano, which is singular, so the verb must also be singular:

• El plano ... identifica = The plan ... identifies

It would only be identifican if the subject were plural:

• Los planos de situación identifican...

Identifica is the present indicative, third person singular, from the verb identificar.

Here is the relevant part of the conjugation:

• yo identifico
• tú identificas
• él/ella/usted identifica

So in this sentence, identifica means:

• identifies
• does identify
• sometimes, depending on context, indicates or shows

Not always in the narrow English sense.

In technical or formal Spanish, identificar can mean:

• to identify
• to indicate
• to specify
• to show clearly
• to mark out

So in a sentence about a plan or map, identifica may sound more natural in English as indicates or shows rather than strictly identifies.

Literally, it means reservation of space.

Depending on context, it could refer to:

• an area set aside for something
• a reserved space
• the allocation of space
• a designated reserved area

This kind of phrase is common in administrative, legal, planning, and technical language. The exact meaning depends on what kind of document the sentence comes from.

Because Spanish usually does not build noun compounds the same way English does.

English often puts two nouns together:

• site plan
• space reservation
• city map

Spanish more often connects them with de:

• plano de situación
• reserva de espacio
• mapa de la ciudad

So this structure is completely normal in Spanish.

This is the most neutral Spanish word order:

subject + verb + object

• El plano de situación = subject
• identifica = verb
• la reserva de espacio = direct object

Spanish word order is flexible, but this is the standard, straightforward order you will often see in formal written language.

Yes, in this sentence it sounds natural and expected.

La reserva de espacio refers to a specific thing that the plan identifies. Spanish often uses definite articles more than English does, especially when talking about something definite in a formal or technical context.

Without the article, reserva de espacio would sound less complete here.

Sometimes, yes, but not always.

Plano often suggests:

• a plan
• a technical drawing
• a layout
• a plan view
• sometimes a map, depending on context

Compared with mapa, plano often feels more technical, more detailed, or more related to a specific site or layout.

So whether you translate it as plan or map depends on the document and context.

A broad Spain pronunciation would be approximately:

el PLA-no de si-twa-THYON i-den-ti-FI-ka la re-SER-ba de es-PA-thyo

A few notes:

• c before i in situación and identifica is pronounced like th in much of Spain
• v in reserva sounds very similar to b
• the stress falls on:
  • PLAno
  • situaCIÓN
  • identiFIca
  • reSERva
  • esPAcio

If you are aiming for Spain Spanish, that th sound is typical in many regions.